Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 692
NWS STORM PREDICTION CENTER NORMAN OK
430 PM CDT TUE JUL 15 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
A LARGE PART OF NEBRASKA
EFFECTIVE THIS TUESDAY AFTERNOON FROM 430 PM UNTIL MIDNIGHT CDT.
HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST OF
MULLEN NEBRASKA TO 40 MILES EAST NORTHEAST OF COLUMBUS NEBRASKA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...WITH A VERY UNSTABLE AIR MASS IN PLACE AND LITTLE
REMAINING CINH...THUNDERSTORMS WILL INCREASE IN NUMBER AND
INTENSITY. MLCAPES AOA 2500 J/KG AND STEEP MID LEVEL LAPSE RATES
SUPPORT LARGE HAIL AND AS COLD POOLS DEVELOP...DAMAGING WINDS WILL
BE LIKELY.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 28015.
...HALES
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 692
NWS STORM PREDICTION CENTER NORMAN OK
430 PM CDT TUE JUL 15 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
A LARGE PART OF NEBRASKA
EFFECTIVE THIS TUESDAY AFTERNOON FROM 430 PM UNTIL MIDNIGHT CDT.
HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST OF
MULLEN NEBRASKA TO 40 MILES EAST NORTHEAST OF COLUMBUS NEBRASKA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...WITH A VERY UNSTABLE AIR MASS IN PLACE AND LITTLE
REMAINING CINH...THUNDERSTORMS WILL INCREASE IN NUMBER AND
INTENSITY. MLCAPES AOA 2500 J/KG AND STEEP MID LEVEL LAPSE RATES
SUPPORT LARGE HAIL AND AS COLD POOLS DEVELOP...DAMAGING WINDS WILL
BE LIKELY.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 28015.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 692 SEVERE TSTM NE 152130Z - 160500Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
50W MHN/MULLEN NE/ - 40ENE OLU/COLUMBUS NE/
..AVIATION COORDS.. 50NM N/S /65E BFF - 50NW OVR/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 28015.
LAT...LON 42900204 42549662 40799662 41180204
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 692 Status Report Messages:
STATUS REPORT #3 ON WW 692
VALID 160315Z - 160440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 W LBF TO
5 SE VTN TO 35 ENE ANW TO 10 ESE LNK.
..SPC..07/16/08
ATTN...WFO...OAX...LBF...GID...FSD...
&&
STATUS REPORT FOR WS 692
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC085-129-155-165-160440-
IA
. IOWA COUNTIES INCLUDED ARE
HARRISON MILLS POTTAWATTAMIE
SHELBY
$$
NEC001-009-011-017-019-023-025-031-035-041-047-055-059-067-071-
077-079-081-089-093-095-097-109-111-113-115-117-121-125-129-131-
141-143-149-151-153-159-163-169-171-175-177-181-183-185-
160440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ADAMS BLAINE BOONE
BROWN BUFFALO BUTLER
CASS CHERRY CLAY
CUSTER DAWSON DOUGLAS
FILLMORE GAGE GARFIELD
GREELEY HALL HAMILTON
HOLT HOWARD JEFFERSON
JOHNSON LANCASTER LINCOLN
LOGAN LOUP MCPHERSON
MERRICK NANCE NUCKOLLS
OTOE PLATTE POLK
ROCK SALINE SARPY
SEWARD SHERMAN THAYER
THOMAS VALLEY WASHINGTON
WEBSTER WHEELER YORK
$$
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.
$$
STATUS REPORT #2 ON WW 692
VALID 160130Z - 160240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..07/16/08
ATTN...WFO...OAX...LBF...GID...FSD...
&&
STATUS REPORT FOR WS 692
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC085-129-155-165-160240-
IA
. IOWA COUNTIES INCLUDED ARE
HARRISON MILLS POTTAWATTAMIE
SHELBY
$$
NEC001-003-005-009-011-017-019-023-025-027-031-035-037-039-041-
047-051-053-055-059-067-071-075-077-079-081-089-091-093-095-097-
101-107-109-111-113-115-117-119-121-125-129-131-139-141-143-149-
151-153-155-159-163-167-169-171-175-177-179-181-183-185-
160240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ADAMS ANTELOPE ARTHUR
BLAINE BOONE BROWN
BUFFALO BUTLER CASS
CEDAR CHERRY CLAY
COLFAX CUMING CUSTER
DAWSON DIXON DODGE
DOUGLAS FILLMORE GAGE
GARFIELD GRANT GREELEY
HALL HAMILTON HOLT
HOOKER HOWARD JEFFERSON
JOHNSON KEITH KNOX
LANCASTER LINCOLN LOGAN
LOUP MCPHERSON MADISON
MERRICK NANCE NUCKOLLS
OTOE PIERCE PLATTE
POLK ROCK SALINE
SARPY SAUNDERS SEWARD
SHERMAN STANTON THAYER
THOMAS VALLEY WASHINGTON
WAYNE WEBSTER WHEELER
YORK
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 692
VALID 152335Z - 160040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..07/15/08
ATTN...WFO...OAX...LBF...GID...FSD...
&&
STATUS REPORT FOR WS 692
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NEC003-005-009-011-017-019-023-027-031-037-039-041-047-051-053-
071-075-077-079-081-089-091-093-101-107-111-113-115-117-119-121-
125-139-141-143-149-155-159-163-167-171-175-179-183-185-
160040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ANTELOPE ARTHUR BLAINE
BOONE BROWN BUFFALO
BUTLER CEDAR CHERRY
COLFAX CUMING CUSTER
DAWSON DIXON DODGE
GARFIELD GRANT GREELEY
HALL HAMILTON HOLT
HOOKER HOWARD KEITH
KNOX LINCOLN LOGAN
LOUP MCPHERSON MADISON
MERRICK NANCE PIERCE
PLATTE POLK ROCK
SAUNDERS SEWARD SHERMAN
STANTON THOMAS VALLEY
WAYNE WHEELER YORK
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
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% (F2-F5 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.
weather.gov 
