Source: US National Oceanic and Atmospheric Administration
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 296
NWS Storm Prediction Center Norman OK
345 PM CDT Mon May 19 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern Iowa
Northern Missouri
* Effective this Monday afternoon and evening from 345 PM until
1000 PM CDT.
* Primary threats include…
Scattered large hail and isolated very large hail events to 2
inches in diameter likely
Scattered damaging wind gusts to 70 mph possible
SUMMARY…Strong to severe thunderstorms over northern Missouri will
spread northward across the watch this afternoon and evening. The
strongest storms will pose a risk of large hail.
The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 65 miles west northwest
of Lamoni IA to 25 miles south of Ottumwa IA. 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 292…WW 293…WW
294…WW 295…
AVIATION…A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
22030.
…Hart
Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW6
WW 296 SEVERE TSTM IA MO 192045Z – 200300Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
65WNW LWD/LAMONI IA/ – 25S OTM/OTTUMWA IA/
..AVIATION COORDS.. 45NM N/S /32ESE OVR – 36N IRK/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 22030.
LAT…LON 41699508 41469245 40009245 40249508
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 296 Status Report Message has not been issued yet.
Note: Click for Complete Product Text.Tornadoes
Probability of 2 or more tornadoes
Low (10%)
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (5%)
Wind
Probability of 10 or more severe wind events
Mod (50%)
Probability of 1 or more wind events > 65 knots
Low (20%)
Hail
Probability of 10 or more severe hail events
Mod (60%)
Probability of 1 or more hailstones > 2 inches
Mod (60%)
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.