Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 419
NWS Storm Prediction Center Norman OK
115 PM MDT Thu Jun 29 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern Colorado
Nebraska Panhandle
Southeast Wyoming
* Effective this Thursday afternoon and evening from 115 PM until
900 PM MDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail likely with isolated very large hail events
to 3.5 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Severe storms including supercells are expected to develop
near the foothills and adjacent High Plains through the afternoon.
Very large hail is possible, along with the potential for tornadoes.
The storms will persist generally eastward into the Nebraska
Panhandle and northeast Colorado plains this evening.
The tornado watch area is approximately along and 75 statute miles
east and west of a line from 50 miles east northeast of Douglas WY
to 45 miles southeast of Denver CO. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 415...WW 416...WW
417...WW 418...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 26025.
...Guyer
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 419
NWS Storm Prediction Center Norman OK
115 PM MDT Thu Jun 29 2023
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern Colorado
Nebraska Panhandle
Southeast Wyoming
* Effective this Thursday afternoon and evening from 115 PM until
900 PM MDT.
* Primary threats include...
A couple tornadoes possible
Scattered large hail likely with isolated very large hail events
to 3.5 inches in diameter possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Severe storms including supercells are expected to develop
near the foothills and adjacent High Plains through the afternoon.
Very large hail is possible, along with the potential for tornadoes.
The storms will persist generally eastward into the Nebraska
Panhandle and northeast Colorado plains this evening.
The tornado watch area is approximately along and 75 statute miles
east and west of a line from 50 miles east northeast of Douglas WY
to 45 miles southeast of Denver CO. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 415...WW 416...WW
417...WW 418...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3.5 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 26025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 419 TORNADO CO NE WY 291915Z - 300300Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
50ENE DGW/DOUGLAS WY/ - 45SE DEN/DENVER CO/
..AVIATION COORDS.. 65NM E/W /80E DDY - 35SSE DEN/
HAIL SURFACE AND ALOFT..3.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 26025.
LAT...LON 43010297 39300288 39300569 43010594
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 419 Status Report Messages:
STATUS REPORT #9 ON WW 419
VALID 300115Z - 300240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SW DGW TO
30 WSW TOR TO 5 S AIA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1349
..SQUITIERI..06/30/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-300240-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-033-105-123-157-300240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER CHEYENNE KIMBALL
MORRILL SCOTTS BLUFF
$$
WYC001-015-021-031-300240-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY GOSHEN LARAMIE
PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #8 ON WW 419
VALID 300030Z - 300140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 ENE RWL
TO 35 WNW CDR.
..THORNTON..06/30/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-300140-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-300140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-015-021-031-300140-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY GOSHEN LARAMIE
PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #7 ON WW 419
VALID 300030Z - 300140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 ENE RWL
TO 35 WNW CDR.
..THORNTON..06/30/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-300140-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-300140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-015-021-031-300140-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY GOSHEN LARAMIE
PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #6 ON WW 419
VALID 292335Z - 300040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 ENE RWL
TO 35 WNW CDR.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1343
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-300040-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-300040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-015-021-031-300040-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY GOSHEN LARAMIE
PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 419
VALID 292245Z - 292340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1343
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-292340-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-292340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-009-015-021-027-031-292340-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CONVERSE GOSHEN
LARAMIE NIOBRARA PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 419
VALID 292150Z - 292240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-292240-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-292240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-009-015-021-027-031-292240-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CONVERSE GOSHEN
LARAMIE NIOBRARA PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 419
VALID 292040Z - 292140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-292140-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-292140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-009-015-021-027-031-292140-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CONVERSE GOSHEN
LARAMIE NIOBRARA PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 419
VALID 291940Z - 292040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-292040-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-292040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-009-015-021-027-031-292040-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CONVERSE GOSHEN
LARAMIE NIOBRARA PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 419
VALID 291940Z - 292040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..THORNTON..06/29/23
ATTN...WFO...BOU...CYS...
&&
STATUS REPORT FOR WT 419
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-013-014-031-035-039-059-069-075-087-121-123-292040-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BOULDER
BROOMFIELD DENVER DOUGLAS
ELBERT JEFFERSON LARIMER
LOGAN MORGAN WASHINGTON
WELD
$$
NEC007-013-033-045-105-123-157-165-292040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BANNER BOX BUTTE CHEYENNE
DAWES KIMBALL MORRILL
SCOTTS BLUFF SIOUX
$$
WYC001-009-015-021-027-031-292040-
WY
. WYOMING COUNTIES INCLUDED ARE
ALBANY CONVERSE GOSHEN
LARAMIE NIOBRARA PLATTE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (50%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.