Storm Prediction Center Severe Thunderstorm Watch 31
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4 hours ago
Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended. Note: Click for Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 31
NWS Storm Prediction Center Norman OK
320 PM CDT Fri Mar 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Iowa
Eastern Nebraska
* Effective this Friday afternoon and evening from 320 PM until
1000 PM CDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 90
mph likely
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms will spread rapidly north-northeastward this
afternoon and evening, while posing a threat for widespread
severe/damaging winds. The strongest wind gusts could reach 80-90
mph on an isolated basis. Some hail and perhaps a tornado could also
occur if a supercell can form and be sustained later this evening.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 25 miles west northwest
of Lincoln NE to 50 miles north of Ottumwa IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 30...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
19055.
...Gleason
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 31
NWS Storm Prediction Center Norman OK
320 PM CDT Fri Mar 14 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western and Central Iowa
Eastern Nebraska
* Effective this Friday afternoon and evening from 320 PM until
1000 PM CDT.
* Primary threats include...
Widespread damaging winds and isolated significant gusts to 90
mph likely
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...Thunderstorms will spread rapidly north-northeastward this
afternoon and evening, while posing a threat for widespread
severe/damaging winds. The strongest wind gusts could reach 80-90
mph on an isolated basis. Some hail and perhaps a tornado could also
occur if a supercell can form and be sustained later this evening.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 25 miles west northwest
of Lincoln NE to 50 miles north of Ottumwa IA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 30...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
19055.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 31 SEVERE TSTM IA NE 142020Z - 150300Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
25WNW LNK/LINCOLN NE/ - 50N OTM/OTTUMWA IA/
..AVIATION COORDS.. 55NM N/S /57ESE OBH - 42WNW IOW/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..80 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 19055.
LAT...LON 41939721 42769245 40889245 40059721
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 31 Status Report Messages:
STATUS REPORT #2 ON WW 31
VALID 142250Z - 142340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SW LWD TO
25 E SDA TO 15 S OMA TO 25 S OLU.
..LYONS..03/14/25
ATTN...WFO...DMX...OAX...
&&
STATUS REPORT FOR WS 31
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-013-015-017-023-025-027-029-039-047-049-051-
053-069-073-075-077-079-083-085-091-099-117-121-123-125-127-133-
135-151-153-155-157-159-161-165-169-171-173-175-179-181-185-187-
197-142340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BLACK HAWK BOONE
BREMER BUTLER CALHOUN
CARROLL CASS CLARKE
CRAWFORD DALLAS DAVIS
DECATUR FRANKLIN GREENE
GRUNDY GUTHRIE HAMILTON
HARDIN HARRISON HUMBOLDT
JASPER LUCAS MADISON
MAHASKA MARION MARSHALL
MONONA MONROE POCAHONTAS
POLK POTTAWATTAMIE POWESHIEK
RINGGOLD SAC SHELBY
STORY TAMA TAYLOR
UNION WAPELLO WARREN
WAYNE WEBSTER WRIGHT
$$
NEC021-023-037-039-053-055-155-167-173-177-142340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT BUTLER COLFAX
CUMING DODGE DOUGLAS
SAUNDERS STANTON THURSTON
WASHINGTON
$$
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.
$$
STATUS REPORT #1 ON WW 31
VALID 142150Z - 142240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NE FNB TO
20 SSE LNK TO 45 E HSI.
..LYONS..03/14/25
ATTN...WFO...DMX...OAX...
&&
STATUS REPORT FOR WS 31
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-007-009-013-015-017-023-025-027-029-039-047-049-051-
053-069-071-073-075-077-079-083-085-091-099-117-121-123-125-127-
129-133-135-137-145-151-153-155-157-159-161-165-169-171-173-175-
179-181-185-187-197-142240-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS APPANOOSE
AUDUBON BLACK HAWK BOONE
BREMER BUTLER CALHOUN
CARROLL CASS CLARKE
CRAWFORD DALLAS DAVIS
DECATUR FRANKLIN FREMONT
GREENE GRUNDY GUTHRIE
HAMILTON HARDIN HARRISON
HUMBOLDT JASPER LUCAS
MADISON MAHASKA MARION
MARSHALL MILLS MONONA
MONROE MONTGOMERY PAGE
POCAHONTAS POLK POTTAWATTAMIE
POWESHIEK RINGGOLD SAC
SHELBY STORY TAMA
TAYLOR UNION WAPELLO
WARREN WAYNE WEBSTER
WRIGHT
$$
NEC021-023-025-037-039-053-055-109-131-153-155-159-167-173-177-
142240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
BURT BUTLER CASS
COLFAX CUMING DODGE
DOUGLAS LANCASTER OTOE
SARPY SAUNDERS SEWARD
STANTON THURSTON WASHINGTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (10%)
Wind
Probability of 10 or more severe wind events
High (90%)
Probability of 1 or more wind events > 65 knots
High (70%)
Hail
Probability of 10 or more severe hail events
Mod (40%)
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 (>95%)
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.
