Alert archive / Iowa / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 144, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Aug 7, 2022, 7:54 PM CDT for 4 counties in Iowa. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 7, 2022, 7:54 PM CDT (00:54 UTC)
- Expired
- Aug 7, 2022, 8:35 PM CDT
- In force
- 41 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Jasper County, IA, Marshall County, IA, Poweshiek County, IA, Tama County, IA
The radar
The Des Moines radar (KDMX), 80 km from the middle of the area, began a volume at 00:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 7, 7:41 PM CDT, 13 minutes before
Special Weather Statement
National Weather Service Des Moines IA
741 PM CDT Sun Aug 7 2022
IAZ060-073-080130-
Polk IA-Warren IA-
741 PM CDT Sun Aug 7 2022
...A strong thunderstorm will impact portions of southwestern Polk
and northwestern Warren Counties through 830 PM CDT...
At 737 PM CDT, Doppler radar was tracking a strong thunderstorm over
Norwalk, moving northeast at 15 mph.
HAZARD...Additional heavy rainfall of one to 2 inches is possible.
SOURCE...Radar indicated.
IMPACT...Ponding of ponding of water on roadways, low visibilities,
some street flooding is possible and rises in small streams
and creeks.
This strong thunderstorm will be near...
Norwalk around 750 PM CDT.
Des Moines Int'l Airport around 755 PM CDT.
Other locations in the path of this storm include Principal Park,
Southridge Mall, Iowa Events Center and Des Moines.
This includes the following highways...
Interstate 35 between mile markers 65 and 69.
Interstate 235 near mile marker 8.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4153 9379 4160 9362 4149 9353 4146 9379
TIME...MOT...LOC 0037Z 246DEG 14KT 4151 9374
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
REVLocal storm report, Aug 7, 7:46 PM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
746 PM CDT SUN AUG 7 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0651 PM TSTM WND DMG 2 NW DES MOINES 41.60N 93.65W
08/07/2022 POLK IA PUBLIC
PUBLIC TWEET INDICATING A LARGE TREE HAD
FALLEN AND TAKEN DOWN POWERLINES. TIME
ESTIMATED FROM RADAR.
&&
DODSONSpecial weather statement, Aug 7, 7:49 PM CDT, 5 minutes before
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 63 min |
| Aug 7, 7:41 PM CDT | Special Weather Statement | DMX | Polk | 49 min |
| Aug 7, 7:49 PM CDT | Special Weather Statement | DMX | Jasper | 26 min |
| Aug 7, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Warren | 27 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2022Every severe thunderstorm warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.