1997-98 Winter Weather Events

I've started this page in an attempt to keep track of significant winter weather events this season. If you have ANY links or info please forward to ... Greg Carbin ( greg.carbin@noaa.gov)

Oct. 24-26, 1997 Rocky Mountains and Plains Blizzard

The first big snowstorm of the season came spinning into the Intermountain west from off the Pacific. As the system moved toward the Four-Corners it tapped into the abundant moisture and energy of the sub-tropical jet which was also fueling another storm system responsible for damaging tornadoes in TX and LA. The Four-Corners low is a classic setup for heavy snow along the Front Range of the Rockies, and over the High Plains...and that's exactly what happened. Winds gusting over 60 mph also caused widespread blizzard conditions from late evening on the 25th through much of the 26th.

A snowy morning in Boulder (Oct. 26)! Image temporarily unavailable

Visible Satellite Animation (Long D/L on a slow link!)

CIMSS-UW Satellite Review

NWSFO PUB Case Study

Nov. 14-16, 1997 New York-New England Snowstorm

This system produced a wide swath of warm air advection precipitation that fell primarily as snow from western New York eastward. As the system departed New England, a surprise snowfall of over 1 foot fell around Portland, ME (PWM) on Sunday morning of 16 Nov. An elongated west-to-east trough existed over the northeast on the evening of the 15th, with surface low pressure over eastern Lake Ontario. What appears to have happend is that this low pressure area moved eastward overnight and deepend along the southwest coast of Maine. A tight circulation around the deepening low pressure pulled Atlantic moisture into southwest Maine and an intense, but fairly short-lived, low level convergence zone developed just inland from the coast. This image of surface moisture (theta-e) flux convergence at 09Z was an indication of things to come.

Here's a Java animation of surface pressure and streamlines (07Z-14Z on 16 Nov.). It is also interesting to note that the 850 mb low moved directly over the area with heaviest snow at around 12Z on the 16th. The 00Z Eta 12 hour forecast for the 850 mb low was about 150 miles northwest of the correct position.

Nov. 26-29, 1997 Sierra Nevada and Rockies

Large West Coast trough moved slowly over California and Nevada on the 26th bringing over 1 foot of snow to higher elevations. Upper circulation stalled over NW CO on Thanksgiving day with over 1 foot of snow reported across the CO Rockies. System redeveloped over eastern CO and stalled on the 28th. Additional heavy snow (up to 4 feet!) fell along the Front Range south into the South Central CO mountains, northeast NM, and isolated parts of the high plains.


Nov. 27, 1997 Interior and Eastern Maine

Fast moving upper trough moved from Great Lakes to New England Coast inducing rapid and deep cyclogenesis in the Gulf of Maine. Rapid movement of system kept snow totals low in all but interior and Downeast ME where 7-10 inches fell in about 12 hours. Strong winds in western quadrant of bombogenetic storm raked NY and New England with gusts over 70 mph in parts of eastern NY and eastern MA.

Nov. 30-Dec. 1, 1997 New York and New England

Warm moist air just above the surface moved into eastern New York early on the 30th. Surface temperatures were well below freezing and freezing rain was the result. As the moisture moved into northeast NY and VT a deep dry layer aloft (12z 11/30 ALB sounding shown here) resulted in evaporational cooling and a change in the precipitation from light freezing rain to sleet and snow. Snow amounts were quite variable across VT with 1 to 4 inches reported. However, some of these accumualtions included sleet and freezing rain. On Monday Dec. 1st a vigorous upper trough moved across northern New England and surface low pressure developed explosively well southeast of the Gulf of Maine. This system brought over 6 inches of snow to parts of Maine while "backlash" moisture and very cold air aloft produced numerous squalls over the White and Green Mountains of NH and VT...bringing another half foot of snow to some areas. Jay Peak, in northern VT, reported 14 inches of new snow from this two day event. In addition to the snow squalls, the wind increased dramatically behind the departing low pressure. (See maps below.)

Dec. 1-3, 1997 Arizona, New Mexico, and Colorado

So far this winter it seems that the Northeast and the Southwest U.S. are the places to be for significant winter storms. This Southwest system was born off the coast of CA and moved across the northern part of the Baja penninsula on the 1st. In the high country of Greenlee county, in eastern Arizona, snowfall of 8-10 inches occurred on the 1st and 2nd. The upper low then moved northeast across NM, encountering deeper moisture drawn northwest from the Gulf of Mexico. Significant snow fell over New Mexico's mountains with 16 inches reported at Taos Ski area on the 3rd. Colorado's southern mountains were once again pummeled with powder! The surface low pressure system moved to the northeast and over the Plains and upper Mississippi valley on Dec. 3rd producing a stripe of 2 to 4 inch snows from KS to IA, with 3 to 5 inches falling in parts of Wisconsin.

Some GEMPAK upper air graphics from December 1st...


00Z 01-Dec-97 12Z 01-Dec-97
850 mb 850 mb
700 mb 700 mb
500 mb 500 mb



Dec. 4-6, 1997 Lake Effect Snow in Michigan, Ohio, and New York

Upper low stalled over Great Lakes with cold air streaming southwest across Lakes Superior and Michigan on the 4th, and eastward to Lake Erie on the 5th. Marquette, MI (MQT) and vicinity picked up over 1 foot of snow. Heavy lake effect snow also fell across western lower MI and the normal snow belts of northeast OH, northwest PA, and western NY. Lake effect snow bands were widespread on the 5th. Persistent and heavy lake effect snow squalls continued from northeast OH to western NY on the 6th where over 2 feet of snow fell in some areas.

Dec. 6, 1997 Northern and Eastern Maine

This system developed on the eastern periphery of the upper low affecting the Great Lakes region. Surface low pressure developed rapidly off the Maine coast and could not move quickly east into the Canadian Maritimes due to closed upper circulation centered over northern VT/NH. Strong lift of Atlantic moisture was wrapped around the upper low and rotated over eastern then northern Maine. Over 1 foot of snow was reported at Ft. Kent.

Dec. 7-8, 1997 A Mess from the Sierra to St. Louis!

A vigorous storm plowed into the central CA coast at midday on the 7th. The cold upper trough moved rapidly inland and over the CA mountains and, combined with significant upslope flow, produced very heavy snow in the Sierra Nevada. Snow levels dropped below 3000 feet in the north and 4000 feet in the south. One to 2 feet of snow fell in the Sierra with widespread lighter snowfall across Oregon and Washington. Moderate to locally heavy snow fell across ID, UT, and CO on the 8th, as the upper level system moved across the Intermountain west. Meanwhile, a wet system which had affected southern CA on the 5th and 6th moved into the central Plains by the 7th. This system initiated moderately strong warm air advection over parts of eastern KS and much of MO late on the 7th. Several inches of wet snow, as well as some sleet and freezing rain, fell over these areas on the 7th and 8th. Persistent freezing drizzle also plagued the central High Plains through this period due to moist upslope flows into a shallow cold airmass.

Here are some GEMPAK graphics from Dec. 8th...

(Check out the warm air advection over KS/MO and the screaming jet into CA!)  

00Z 08-Dec-97 12Z 08-Dec-97
850 mb 850 mb
700 mb 700 mb
300 mb 300 mb


Dec. 9-10, 1997 Western Storm Emerges from the Rockies, Hits the Midwest...

After producing the heaviest snowfall of the season in parts of the west, the powerful trough that moved into the west coast on the 7th initiated lee-side cyclogenesis on the 9th. This system organized and strengthened over the OK Panhandle during the afternoon of the 9th and brought moderate snow to MO and IL by evening. This was a well behaved system which showed some interesting mesoscale features. Maximum snowfall (here's a 12z Dec. 10th snowcover map) fell just to the left of the 850 mb low track. During the night, the Quad-Cities, IL radar showed distinctive E-W heavy snow bands which can be related to mesoscale insatabilites including CSI. The RUC2 model (newest version of the RUC with hourly output!) was used to diagnose the existence of negative values of equivalent potential vorticity (EPV). Negative EPV can indicate an environment favorable for CSI. Note that the negative EPV values did not quite reach into the region where the banded precipitation (and heaviest snow) was observed (load the loops below for additional detail). It is possible that the snow bands were caused by Weak Symmetric Stability (WSS) as discussed by Glass and Moore.

Loop of Midwest Surface Observations (00Z-06Z 10 Dec.)

Loop of Quad-Cities radar (0005Z-0424Z 10 Dec.) Worth the download time!

Loop of RUC2 EPV and 850-700 mb RH (hourly 00Z-03Z).

Central IL 00Z Dec. 10 upper-air sounding. (Note the deep saturated layer and relatively weak southwesterly unidirectional shear in the mid-levels. The stronger winds aloft, over 100 KT at 300 mb, were just south of this location at this time.)

Dec. 10-11, 1997 Then on through the Great Lakes to the East!

Same winter storm as above. Surface low pressure was centered between IN and OH on the morning of the 10th. The storm then moved SLOWLY eastward, north of the Ohio river valley, and into northwest PA by evening. Heavy snow fell over MI, OH, PA, and NY. Snow was falling at 2 to 4 inches per hour in western NY during the afternoon! Here's a separate page with some selected graphics from this event including observed snow cover at 18Z and at 00Z 11 December. Here are a few products issued by local National Weather Service offices.

Dec. 10, 1997 The Rockies Pick Up More Snow and Blowing Snow

Strong northerly winds in advance of a strong and building high pressure ridge over the Pacific Northwest, and residual mid level moisture over the Rockies, combined to produce heavy snow squalls and mountain white-outs over Colorado and Wyoming.

National Weather Service products from CO and WY. Also view selected US graphics for 10 Dec.

Dec. 14, 1997 Sunday Snowstorm in the South.

Parts of south-central MS awoke to a few inches of snow on Sunday morning, a very rare event. What's even more incredible is that is kept snowing for much of the day with over 7 inches of heavy wet snow reported around the Jackson, MS area! The band of heavy snow formed to the north of a rapidly intensifying, and unusually cold, upper level closed low. Low level mositure was wrapped westward and lifted into the system from the east. The air in the mid levels was cold enough for snow, and as the closed low passed south of MS during the morning, the near surface layer was cooled to freezing by the falling precipitation. The 12Z Jackson, MS sounding showed the surface temperature and dewpoint were right at the freezing mark...and stayed there through the entire event. The 12Z RUC2 6-hour forecast for precipitation type indicated snow across all of south central MS and into central AL...with strong 700-500 mb upward motion over the same region. Parts of west central AL picked up as much as 4 inches of snow during the day. Here's a satellite snapshot showing the area of snow on the day after!

Loop of Jackson, MS radar (12-16Z 14 Dec. 9-frame loop).

Selected Products from National Weather Service offices.

CIMSS-UW Satellite Review

A map of observed snowfall totals.

Dec. 14, 1997 Moderate Snowfall over Northern CA Mountains

Strong trough moved into central CA coast with snow levels dropping to about 3000 feet in the mountains of northern California, about 4000 feet in the Sierra. Snow amounts were generally in the 4-8 inch range with higher amounts in the upper elevations.

Dec. 15-16, 1997 Pacific Northwest and Idaho Hit with Heavy Wet Snow.

Warm air advection and a very moist tropical Pacific plume moved over the Cascades of Washington and Oregon on the 15th with heavy snow falling through the night. Cold air was trapped in the inland higher elevation areas of central Washington and eastern Oregon where several inches of wet snow was reported. The moisture moved eastward into the northern Bitteroot Mountains of Idaho on the 16th with heavy snow falling from about 3000 feet up. Here are a number of products issued by local National Weather Service offices.

16-Dec., 1997 12Z GOES-9 IR Satellite Image of the eastern Pacific and western U.S.

Here's a 16-Dec., 1997 12Z Sounding from Spokane, WA (OTX)

Dec. 20, 1997 Snow in New Mexico, Ice in the Texas Panhandle

A broad upper low moved eastward along the northern border of Mexico/southern border of AZ on the morning of the 20th. This system sped up and ejected northeast over west TX later in the day. Strong upslope flow developed over the mountains of NM where significant snow accumulations occurred during the day. Farther east...over the TX Panhandle...a small amount of above freezing air was pulled into the mid level circulation which turned falling precipitation into liquid in the low to mid levels. This rain then fell into a very shallow layer of below freezing air at the surface bringing significant black ice and glaze to areas around Lubbock and Amarillo. A late afternoon radar composite shows an area of moderate to heavy freezing rain mixed with sleet moving northward into the TX Panhandle. Lubbock reported over 0.50 inch of freezing rain during the day. The Eta model precipitation type forecast was very accurate for this event (note: red region indicates freezing rain). The 12Z 20-Dec. Amarillo sounding appeared to favor wet snow. However, note the isothermal, near freezing, layer between 850-700 mb. This layer probably warmed above freezing when easterly winds brought in warmer air from the east. Here are a couple of products issued by local National Weather Service offices.

Dec. 21-23, 1997 Freezing Rain from Kansas to Pennsylvania and a Burst of Heavy Snow in New England

Same system as above. Weakening upper low and associated surface system moved from KS to IN spreading a swath of generally light freezing rain from the Central Plains to the southern Great Lakes. Strong warm air advection moved into western NY and over PA late in the day on the 22nd. Surface temperatures ranged from just below freezing, in parts of PA, down to the lower 20's in parts of NY. Secondary low pressure formed in advance of the approaching upper trough and strengthened off the Mid Atlantic coast early on the 23rd. This secondary storm brought a quick, but significant, influx of Atlantic moisture into parts of interior and northeastern MA and southeast NH. Some locally astounding snowfall totals occurred in these areas during the morning.

Chatham, MA 12Z Sounding (note deep saturated isothermal layer and SE flow)

Have a Look at the 850, 700, and 500 mb Charts as Initialized on the Eta Model for 12Z Dec. 23rd.

Here is a 7-frame Loop of the RUC Surface Pressure and Frontogenesis. (Note the strong frontogenesis just east of the axis of heaviest snow. Also, here's a look at the 12Z Surface Temperatures over New England.)

A 1415 UTC IR Satellite Image shows the cold cloud tops over the area getting the heaviest snow.

Dec. 22-25, 1997 Another Major Storm Cranks up over the Southwest

A seemingly endless parade of vigorous upper level troughs keeps coming from the eastern Pacific! Yet another strong and cold 500 mb system barrelled into the northern Baja/Gulf of California and closed off over southwest AZ early on the 22nd. A beautiful swirl of a comma head developed from this system over much of NM, the White Mountains, and Mogollon Rim of AZ. Under this swirl, heavy snow fell throughout the day and into the night of the 22nd. Several feet of snow likely piled up in the highest elevations. We're not done with this system yet...

Short Loop of 500 mb Pattern (22 Dec. 00Z -23 Dec. 00Z)

Long Loop (7 frames ~ 1 MB of data) of GOES-9 Visible "Swirl in the Southwest"

A Few Products from Local National Weather Service Offices

And Yet Another System is Right Upstream! (Eta forecast 4-panel)

Heavy rain and thunderstorms developed over the Southern Plains before dawn on the 23rd. These storms appeared to disrupt the flow of mositure into the mid and upper level cyclone over NM. The heaviest snow continued to fall across NM northeastward across parts of the TX Panhandle and into southwest KS but there was little organization or structure to the snow bands. There was also a lack of arctic air with this system in the lower levels. However, moderate to occasionally heavy snow did fall over much of western KS from early on the 23rd through the 24th giving some locations over a foot of snow. The main upper and surface systems moved from OK to IL on the 24th leaving light to moderate snowfall across the upper midwest (Dec. 25 12Z observed snow cover map). The winter storm picked up speed and quickly departed the U.S. via New England by late on the 25th. Before departing, the system brought a glaze of freezing rain to much of upstate and eastern NY with a mix of sleet, freezing rain, and snow falling across VT, NH, and ME.

Dec. 25-26, 1997 New Mexico, Texas, and Oklahoma Get Some Snow

Positively tilted long wave trough was parked over the Southwest US with weak impulses being ejected out across TX and OK. This system didn't bring heavy amounts of snow, but the rather anomalous southern position of the polar jet brought areas of snow and sleet to parts of southern OK and north TX on the 26th.

Winter Storm Warning from ABQ on the 25th.

Advisories from TX/OK NWS Offices on the 26th.

Sounding from Dallas/Ft. Worth at 12Z on the 26th.

Dec. 27, 1997 Fast Moving Storm Brings Snow to the East Coast

A quick moving system intensified off the Carolinas and zipped up the eastern seaboard on the 27th. The fast movement of the storm, and the lack of very cold air at the surface, made for mediocre snow amounts from the mountains of North Carolina northward through WV, VA, MD, DE, NJ, PA, and NY. Snow became heavier over southeast New England as the storm strengthened further and moved into the North Atlantic.

Some Snowfall Amounts in the Mid Atlantic Region

Winter Storm Warning from NWS Boston

Snowfall Amounts from Southern New England

Dec. 29-30, 1997 Major Winter Storm Moves Up the Eastern Seaboard

An energetic shortwave pressure trough being propelled along by 140 KT northwesterly flow aloft passed over the central US on Sunday Dec. 28 (500 mb graphic / 300 mb graphic). Light snow fell from eastern OK through parts of the Mississippi valley as this system progressed eastward. Higher snowfall totals would have occurred were it not for the limited amount of moisture available to the storm. The disturbance gained additional strength from the very fast southern stream along the Gulf Coast, and induced strong surface cyclogenesis over the Southeast on the 29th. Atlantic and Gulf Moisture were then brought into the circulation and precipitation increased dramatically over the Eastern US. Some medium range forecast models indicated the chance of this major cyclone over the eastern US several days in advance (ECMWF from Dec. 27).

Loop of RUCS Pressure / Near Freezing Temps and Composite Radar (08-23 UTC Dec. 29th).

Loop of RUCS Pressure / Near Freezing Temps and Composite Radar (00-14 UTC Dec. 30th).

Loop of Eastern US Surface Weather (12Z Dec. 29th through 12Z Dec. 30th).

Loop of Eastern US 500 mb Level (00Z Dec. 29th - 12Z Dec. 30th)

Some Snowfall Amounts

Jan. 3-4, 1998 Freezing Rain Spreads from the Plains to the Northeast

A strong arctic outbreak brought a layer of shallow cold air south across the Canadian border into portions of the central Plains. By late on the 3rd the cold air had moved over all of KS and much of NW OK. In the days prior to the cold air outbreak abundant Gulf moisture moved northward over the plains and midwest. The cold front encountered the deeper moisture over the plains as an upper level distubance moved into the area from the southwest. The result was heavy freezing rain and thunderstorms during the night of the 3rd from northern OK northeastward into MO, KS, NE, IA, WI, MN, and MI. Widespread freezing rain became quite heavy over portions of MN and WI during the evening of the 4th.

News Article About MN Ice Storm

Jan. 3-5, 1998 Heavy Snow from the Cascades and Sierra East to the Rockies

Another western trough brought moderate to heavy snowfall across the mountains of the west. Many areas were affected from WA to AZ. The first trough moved into the intermountain region on the 5th and brought moderate to heavy snow to UT and CO. The Pacific Northwest was affected by an onslught of cold unstable Pacific air being rammed into the Cascades which brought almost continuous heavy snow to the mounatins through the 5th.

NWS WA Weather Summary for Jan. 5

Jan. 5-9, 1998 Devastating Ice Storm of Historic Proportions Hits Northern New England

Incredible flow of mositure and warm air moved from the Gulf Coast and Southeast U.S. northward over below freezing air from northeast NY eastward into central ME. This event will not soon be forgotten for its duration and precipitation amounts. I'm sure we'll see plenty of case studies on this one. Below are a few links about this disaster. This ice storm also affected parts of eastern Canada with the province of Quebec experiencing their costliest natural disaster in history!

News Article from AP

News Article about the Disaster in Canada

Some Icy Pictures from Maine

Public Information Statement from Burlington, VT

850 mb Maps: Heights and Temps (12Z 1/8, 00Z 1/9), Moisture Transport (12Z 1/8, 00Z 1/9)

700 mb Maps: Relative Humidity (12Z 1/8, 00Z 1/9)

500 mb Maps: Heights and Vort. (12Z 1/8, 00Z 1/9), Height Falls (12Z 1/8, 00Z 1/9)

300 mb Maps: Heights, Isotachs, Div. (12Z 1/8, 00Z 1/9)

Eastern U.S. Observed Surface Weather on Jan. 8th for: 03Z, 06Z, 09Z, 12Z, 15Z, 18Z, 21Z

Jan. 7-9, 1998 Heavy Snow from OK to WI

Strong upper trough moved slowly from west TX across the Red River and then redeveloped and moved northward through the Midwest. This system was the western counterpart to the Northeastern ice storm (see maps above). Moderate snow in the the colder air brought generally 3 to 8 inches of snow from northeast OK to WI with the heaviest amounts (6-8 inches) falling during the afternoon of the 8th from northern IL into southeast WI.

Jan. 10-13 , 1998 Cold and Snow in the Pacific Northwest

A series of storms rolled into Washington and Oregon from the Pacific. Much of the region was very cold from an arctic airmass that had seeped into much of Washington, the Columbia River Gorge, and most of interior and northern Oregon. Very heavy snow occurred in parts of the Columbia Gorge, and of course in the Cascades. At the western terminus of the Columbia Gorge, and across the northern Willamette valley, precipitation fell as heavy freezing rain on the 12th. Strong easterly winds roared through the Gorge and continued to supply cold low level air to parts of northwest Oregon, around Portland.

Winter Storm Warnings

Pacific NW Surface Map 03Z 11 Jan.

Pacific NW Surface Map 01Z 13 Jan.

More Winter Storm Products for 12-13 Jan.

Heavy snow continued across much of the Cascades and into Northern ID through the week.

Jan. 15 , 1998 Heavy Snow across Intermountain West

Strong trough and intense west-northwest flow aloft moved from Pacific Northwest rapidly into UT and then CO.

Winter Storm Warnings and Advisories

Jan. 15, 1998 East Coast System Brings Freezing Rain to Mid Atlantic States, Snow to the Northeast

This was an interesting (i.e. difficult forecast) East Coast event with a variety of winter weather. Freezing rain extended from northwest NC into southern New England on the 15th. Moderate snow (from a northern stream short wave) moved over northern NY and northern New England.

12Z, 15 Jan. Roanoke/Blacksburg Sounding (Freezing Rain!)

Jan. 15th Late Evening Radar Summary (03Z Jan. 16th)

Surface Plot and RUCS SLP and Temp (03Z Jan. 16th)

Summaries, Warnings, Statements

Eta Inital 500 mb Plot for 12Z Jan. 15th and 00Z Jan. 16th

The snow forecast for parts of southern New England was a bit on the high side. However, parts of VT and NH picked up 8-10 inches from the northern stream short wave as is combined with the moisture brought northward by the coastal system.

Jan. 18, 1998 Deep Snow in the Sierra

Vigorous Pacific system brought heavy snow to the Sierra Nevada. Strong jet stream moved rapidly inland and across Nevada into the intermountain west on the 19th.

Snow Totals around CA/NV

Jan. 22-24, 1998 A Mess in New England

Snow, sleet, and freezing rain plagued New York and New England. Precipitation remained primarily snow in VT where 8 to 10 inches accumulated. Up to 1/2 inch of glaze coated trees and power lines in central MA while more freezing rain and sleet affected eastern ME through the 24th.

Jan. 26-28, 1998 Surprise Southern and Central Appalachian Snowstorm

Vigorous upper circulation spawned surface cyclogenesis along the southeast coast. This system was expected to be too warm to produce winter precipitation. However, low levels of the atmosphere over the Appalachian mountains cooled sufficiently to support wet snow. And snow it did! AVL ended up with a foot, and there were reports of up to 3 feet along the spine of the Appalachian chain from NC/TN northward into WV and VA! This storm would make an excellent case study (there were no winter storm watches out prior to SN+ beginning). Note: Eta precipitation type output indicated freezing rain for southwest NC, while point forecast soundings looked more like snow. Mesoeta forecasts 18 hours prior to onset of precipitation indicated over 1 inch per hour snowfall over a small area of southwest NC around AVL between 09Z and 12Z on 1/27, and turned out to be right on. Warmer temperatures in mid levels skewed thickness rules toward mixed rain/snow or sleet, but these precipitation types were not observed in significant amounts...it was mostly heavy wet snow.

CNN/AP Article on the Storm

Loop of 500 mb from Jan. 26 through Jan. 28

Greensboro, NC Upper Air Soundings for 00Z Jan. 27th and 12Z Jan. 27th.

Visible Satellite Image of Snow On the Appalachians

Feb. 1-5, 1998 Powerful Storms Affect West and East

An intense storm developed over the Gulf of Mexico on the 1st moving over FL on the 2nd and bringing widespread severe weather. This system then moved slowly northward along the southeast U.S. coast and battered the Mid Atlantic region with high winds and coastal flooding on the 4th and 5th. The huge circualtion around the area of low prtessure brought abundant Atlantic moisture westward into cold air west of the Appalachians. Very heavy snow was reported as far west as IN! The highest accumulations occurred over the Cumberland Plateau and over the OH valley. This was the strongest storm of the winter to date along the east coast.

News Article about the Storm in KY

Loop of Surface Pressure and Freezing Line

Visible Satellite Image of the Snowcover in the Ohio Valley

Meanwhile, the west coast continued to be slammed by intense Pacific cyclones bearing tropical moisture. Major flooding and mudslides occurred across northern and central CA. In the Sierra, the snow continued to pile up, mostly at elevations above 6000.

CNN Web Page Article

Feb. 6-8, 1998 Heavy Snow in the Sierra Nevada, Again!

Another in a plethora of power-packed Pacific systems gave northern California quite a blow. The storm dropped over 2 feet of snow in the Sierra, generally above 6000 feet.

Storm Totals from NWS Reno, NV

Feb. 23-24, 1998 Northeastern Storm Drops Heavy Snow

New York and Vermont were hit hard by a slow moving cyclone with a large circulation. Over a foot of snow across from parts of NY's southern tier to the Champlain valley and the Green Mountains of VT.

Feb. 23-25, 1998 Intense Pacific Storm brings more snow to the Sierra, then the Rockies.

Feb. 25-27, 1998 Western Storm moves into the Northern Plains and Produces Blizzard Conditions.

Note: Sorry about limited information on these latest storm systems. Other projects are attracting my attention. I will, however, at least try to keep the dates logged on the significant events. As time permits, I may also add more information.

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