Alert archive / Iowa / Special Weather Statements in 2023
Special Weather Statement, NWS Des Moines, IA
NWS Des Moines, IA issued this special weather statement at Jul 12, 2023, 12:13 AM CDT for Polk County, Iowa. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2023, 12:13 AM CDT (05:13 UTC)
- Expired
- Jul 12, 2023, 1:00 AM CDT
- In force
- 47 min
- Issued by
- NWS Des Moines, IA
- Hail
- 0.75 in
- Wind
- 30
County Polk County, IA
The radar
The Des Moines radar (KDMX), 21 km from the middle of the area, began a volume at 05:13 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.
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this special weather statement went out at Jul 11, 10:24 PM CDT, 1 hour 49 minutes earlier.
Area forecast discussion, Jul 11, 10:24 PM CDT, 1 hour 49 minutes before
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</html>Hazardous weather outlook, Jul 11, 3:10 PM CDT, 9 hours 3 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 310 PM CDT Tue Jul 11 2023 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-122015- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun- Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene- Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- 310 PM CDT Tue Jul 11 2023 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight Strong to severe thunderstorms are possible late tonight. The main hazards will be damaging wind gusts, though hail and locally heavy rainfall are also possible. A tornado or two cannot be ruled out in far southern Iowa. .DAYS TWO THROUGH SEVEN...Wednesday through Monday The threat for severe weather continues into early Wednesday morning with a continued threat of damaging winds, hail, and locally heavy rainfall. Additional storm chances will return late in the week, although the severe potential will need to be refined in the coming days. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed tonight into Wednesday.
In the hours before
Special weather statement, Jul 12, 12:13 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Des Moines IA
1213 AM CDT Wed Jul 12 2023
IAZ047-048-059-060-120600-
Story IA-Boone IA-Polk IA-Dallas IA-
1213 AM CDT Wed Jul 12 2023
...A strong thunderstorm will impact portions of northern Polk,
southern Story, southeastern Boone and northeastern Dallas Counties
through 100 AM CDT...
At 1213 AM CDT, Doppler radar was tracking a strong thunderstorm over
Big Creek Lake, or 10 miles north of Johnston, moving east at 25 mph.
HAZARD...Penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Ankeny, Bondurant, Polk City, Huxley, Madrid, Slater, Granger,
Woodward, Big Creek Lake, Saylorville Lake, Maxwell, Cambridge,
Elkhart, Alleman, Sheldahl and Big Creek State Park.
This includes Interstate 35 between mile markers 92 and 107.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4186 9333 4186 9335 4169 9335 4175 9388
4189 9403 4196 9333
TIME...MOT...LOC 0513Z 272DEG 20KT 4184 9377
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH
SmallThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 1:00 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 45 min |
| Jul 12, 2:46 AM CDT | Special Weather Statement | DMX | Lucas | 44 min |
| Jul 12, 3:05 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe | 55 min |
| Jul 12, 5:17 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 16 min |
| Jul 12, 5:40 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 50 min |
| Jul 12, 5:55 AM CDT | Flash Flood Warning | DMX | Boone, Greene | 6 hr |
| Jul 12, 6:07 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Cass, Crawford, Sac | 38 min |
| Jul 12, 6:41 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Audubon, Cass, Crawford, Guthrie and 3 more | 64 min |
| Jul 12, 7:22 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Decatur, Madison, Ringgold, Taylor and 1 more | 38 min |
| Jul 12, 7:41 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Boone, Clarke, Dallas, Madison, Polk and 3 more | 39 min |
| Jul 12, 7:47 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Poweshiek | 43 min |
| Jul 12, 7:59 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Clarke, Decatur, Lucas, Monroe, Ringgold and 1 more | 46 min |
| Jul 12, 8:18 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Poweshiek, Story, Tama | 42 min |
Nearby
Special Weather Statements in Iowa, 2023Every special weather statement in 2023
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.