Storm Prediction Center Severe Thunderstorm Watch 456
5 min read
3 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.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 456
NWS Storm Prediction Center Norman OK
440 PM CDT Mon Jun 23 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern into Central and Southwest Iowa
Far Northwest Missouri
Far Southeast Nebraska
* Effective this Monday afternoon and evening from 440 PM until
1000 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Clusters of strong to severe thunderstorms are forecast to
evolve over the late afternoon and persist into the evening.
Moderate deep-layer shear sufficient for multicellular storm
organization and ample buoyancy, will combine to promote 55-65 mph
gusts with the stronger storms. This activity will likely diminish
in intensity by mid to late evening.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 65 miles northeast of
Cedar Rapids IA to 45 miles west northwest of Falls City NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 455...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
22025.
...Smith
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 456
NWS Storm Prediction Center Norman OK
440 PM CDT Mon Jun 23 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern into Central and Southwest Iowa
Far Northwest Missouri
Far Southeast Nebraska
* Effective this Monday afternoon and evening from 440 PM until
1000 PM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Clusters of strong to severe thunderstorms are forecast to
evolve over the late afternoon and persist into the evening.
Moderate deep-layer shear sufficient for multicellular storm
organization and ample buoyancy, will combine to promote 55-65 mph
gusts with the stronger storms. This activity will likely diminish
in intensity by mid to late evening.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 65 miles northeast of
Cedar Rapids IA to 45 miles west northwest of Falls City NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 455...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
22025.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 456 SEVERE TSTM IA MO NE 232140Z - 240300Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
65NE CID/CEDAR RAPIDS IA/ - 45WNW FNB/FALLS CITY NE/
..AVIATION COORDS.. 45NM N/S /10NNW DBQ - 11NW PWE/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 22025.
LAT...LON 41829082 39599639 41049639 43279082
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 456 Status Report Messages:
STATUS REPORT #2 ON WW 456
VALID 240000Z - 240140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW OMA
TO 40 NE SDA TO 25 ENE DSM TO 25 SSW ALO TO 50 NNE ALO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1423
..MOORE..06/23/25
ATTN...WFO...DMX...DVN...OAX...EAX...
&&
STATUS REPORT FOR WS 456
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC003-011-013-019-039-053-055-061-071-095-097-099-103-105-107-
113-117-121-123-125-129-137-145-153-157-159-171-173-175-181-
240140-
IA
. IOWA COUNTIES INCLUDED ARE
ADAMS BENTON BLACK HAWK
BUCHANAN CLARKE DECATUR
DELAWARE DUBUQUE FREMONT
IOWA JACKSON JASPER
JOHNSON JONES KEOKUK
LINN LUCAS MADISON
MAHASKA MARION MILLS
MONTGOMERY PAGE POLK
POWESHIEK RINGGOLD TAMA
TAYLOR UNION WARREN
$$
MOC003-005-075-081-087-147-227-240140-
MO
. MISSOURI COUNTIES INCLUDED ARE
ANDREW ATCHISON GENTRY
HARRISON HOLT NODAWAY
WORTH
$$
NEC097-127-131-133-147-240140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
JOHNSON NEMAHA OTOE
PAWNEE RICHARDSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 456
VALID 232255Z - 232340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MOORE..06/23/25
ATTN...WFO...DMX...DVN...OAX...EAX...
&&
STATUS REPORT FOR WS 456
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
IAC001-003-011-013-015-017-019-023-029-039-049-053-055-061-071-
075-077-083-095-097-099-103-105-107-113-117-121-123-125-127-129-
137-145-153-157-159-169-171-173-175-181-232340-
IA
. IOWA COUNTIES INCLUDED ARE
ADAIR ADAMS BENTON
BLACK HAWK BOONE BREMER
BUCHANAN BUTLER CASS
CLARKE DALLAS DECATUR
DELAWARE DUBUQUE FREMONT
GRUNDY GUTHRIE HARDIN
IOWA JACKSON JASPER
JOHNSON JONES KEOKUK
LINN LUCAS MADISON
MAHASKA MARION MARSHALL
MILLS MONTGOMERY PAGE
POLK POWESHIEK RINGGOLD
STORY TAMA TAYLOR
UNION WARREN
$$
MOC005-087-147-227-232340-
MO
. MISSOURI COUNTIES INCLUDED ARE
ATCHISON HOLT NODAWAY
WORTH
$$
NEC097-127-131-133-147-232340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
JOHNSON NEMAHA OTOE
PAWNEE RICHARDSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (<2%)
Wind
Probability of 10 or more severe wind events
Mod (60%)
Probability of 1 or more wind events > 65 knots
Low (20%)
Hail
Probability of 10 or more severe hail events
Mod (30%)
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 (80%)
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.
