Alert archive / Iowa / Flash Flood Watches in 2019
Flash Flood Watch 6, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood watch at May 26, 2019, 2:53 PM CDT for 19 counties in Iowa. It took effect at May 26, 2019, 10:00 PM CDT. It was in force for 16 hr.
The area
The counties it named.
The facts
- Issued
- May 26, 2019, 2:53 PM CDT (19:53 UTC)
- In effect from
- May 26, 2019, 10:00 PM CDT
- Expired
- May 27, 2019, 2:20 PM CDT
- In force
- 16 hr
- Issued by
- NWS Des Moines, IA
- Flood severity
- None
Counties Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Davis County, IA, Decatur County, IA, Guthrie County, IA, Lucas County, IA, Madison County, IA, Monroe County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wapello County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 67 km from the middle of the area, began a volume at 19:55 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.
The nearest sounding before it
Topeka, KS (KFOE), launched 12:00Z, 7.9 hours before the alert went out and 278 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
- 24 J/kg
- Mixed-layer CIN
- -343 J/kg
- Mixed-layer LCL
- 992 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at May 26, 12:45 PM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, May 26, 12:45 PM CDT, 2 hours 8 minutes before
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</html>Hazardous weather outlook, May 26, 4:36 AM CDT, 10 hours 17 minutes before
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Local storm report, May 26, 9:11 AM CDT, 5 hours 42 minutes before
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</html>Local storm report, May 26, 9:12 AM CDT, 5 hours 41 minutes before
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</html>Local storm report, May 26, 9:13 AM CDT, 5 hours 40 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 |
|---|---|---|---|---|
| May 25, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 54 min |
| May 25, 7:34 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 15 min |
| May 25, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 24 min |
| May 25, 8:09 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 66 min |
| May 26, 12:46 AM CDT | Special Weather Statement | DMX | Decatur | 44 min |
| May 26, 12:54 AM CDT | Special Weather Statement | DMX | Wayne | 51 min |
| May 26, 1:02 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 28 min |
| May 26, 1:12 AM CDT | Special Weather Statement | DMX | Decatur | 33 min |
| May 26, 1:24 AM CDT | Special Weather Statement | DMX | Adams, Taylor | 51 min |
| May 26, 1:44 AM CDT | Special Weather Statement | DMX | Lucas, Monroe | 31 min |
| May 26, 2:49 AM CDT | Special Weather Statement | DMX | Wapello | 11 min |
| May 26, 5:41 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 19 days |
Nearby
Flash Flood Watches in Iowa, 2019Every flash flood watch 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.