Alert archive / Iowa / Special Weather Statements in 2019
Special Weather Statement, NWS Des Moines, IA
NWS Des Moines, IA issued this special weather statement at Jul 20, 2019, 12:43 PM CDT for Kossuth County, Palo Alto County, Iowa. It was in force for 62 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 20, 2019, 12:43 PM CDT (17:43 UTC)
- Expired
- Jul 20, 2019, 1:45 PM CDT
- In force
- 62 min
- Issued by
- NWS Des Moines, IA
Counties Kossuth County, IA, Palo Alto County, IA
The radar
The Des Moines radar (KDMX), 171 km from the middle of the area, began a volume at 17:44 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1482 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
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 20, 12:37 PM CDT, 6 minutes earlier.
Area forecast discussion, Jul 20, 12:37 PM CDT, 6 minutes before
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</html>Hazardous weather outlook, Jul 20, 4:04 AM CDT, 8 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 404 AM CDT Sat Jul 20 2019 IAZ026>028-035>039-044>050-057>062-070>075-081>086-092>097-210915- Franklin-Butler-Bremer-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- 404 AM CDT Sat Jul 20 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight An Excessive Heat Warning is in effect for the area. Please refer to the National Weather Service website at weather.gov/desmoines for further details. Thunderstorm chances return today into tonight. A few severe storms are possible late this afternoon into this evening. Locally heavy rainfall seems likely, especially over southern and central Iowa tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday Thunderstorms are possible over southern Iowa on Sunday. A few storms could be strong to perhaps severe with locally heavy rain less of a concern than Saturday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. IAZ004>007-015>017-023>025-033-034-210915- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Sac-Calhoun- 404 AM CDT Sat Jul 20 2019 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Thunderstorm chances return today into tonight. A few severe storms are possible late this afternoon into this evening. Locally heavy rainfall seems likely, especially over southern and central Iowa tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday Thunderstorms are possible over southern Iowa on Sunday. A few storms could be strong to perhaps severe with locally heavy rain less of a concern than Saturday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. Ansorge
In the hours before
Local storm report, Jul 20, 11:40 AM CDT, 1 hour 3 minutes before
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</html>Local storm report, Jul 20, 12:23 PM CDT, 20 minutes before
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</html>Local storm report, Jul 20, 12:33 PM CDT, 10 minutes before
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</html>Special weather statement, Jul 20, 12:43 PM CDT, 0 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 |
|---|---|---|---|---|
| Jul 20, 9:42 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 48 min |
| Jul 20, 10:15 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 60 min |
| Jul 20, 10:37 AM CDT | Special Weather Statement | DMX | Emmet, Palo Alto | 53 min |
| Jul 20, 10:53 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Franklin, Hancock, Humboldt, Winnebago, Worth and 1 more | 52 min |
| Jul 20, 11:04 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 41 min |
| Jul 20, 11:24 AM CDT | Special Weather Statement | DMX | Boone, Butler, Grundy, Hamilton, Hardin, Story | 51 min |
| Jul 20, 11:35 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin | 40 min |
| Jul 20, 12:18 PM CDT | Special Weather Statement | DMX | Black Hawk, Grundy, Marshall, Story, Tama | 57 min |
| Jul 20, 3:56 PM CDT | Special Weather Statement | DMX | Greene | 49 min |
| Jul 20, 4:14 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene | 46 min |
| Jul 20, 4:28 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk | 47 min |
| Jul 20, 4:59 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story, Warren | 46 min |
| Jul 20, 5:29 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Warren | 46 min |
| Jul 20, 5:58 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Lucas, Mahaska, Marion, Monroe, Poweshiek and 2 more | 47 min |
| Jul 20, 6:27 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Lucas, Mahaska, Monroe, Wapello and 1 more | 63 min |
| Jul 20, 6:41 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 49 min |
| Jul 20, 6:48 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 42 min |
Nearby
Special Weather Statements in Iowa, 2019Every special weather statement in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.