Alert archive / Iowa / Flash Flood Watches in 2014
Flash Flood Watch 12, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood watch at Aug 6, 2014, 3:28 PM CDT for 8 counties in Iowa. It took effect at Aug 6, 2014, 8:00 PM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Aug 6, 2014, 3:28 PM CDT (20:28 UTC)
- In effect from
- Aug 6, 2014, 8:00 PM CDT
- Expired
- Aug 7, 2014, 3:59 AM CDT
- In force
- 8 hr
- Issued by
- NWS Des Moines, IA
- Flood severity
- None
Counties Adair County, IA, Clarke County, IA, Decatur County, IA, Lucas County, IA, Madison County, IA, Ringgold County, IA, Union County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 83 km from the middle of the area, began a volume at 20:28 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
Omaha, NE (KOAX), launched 12:00Z, 8.5 hours before the alert went out and 210 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
- 117 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 634 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 Aug 6, 12:14 PM CDT, 3 hours 14 minutes earlier.
Area forecast discussion, Aug 6, 12:14 PM CDT, 3 hours 14 minutes before
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</html>Hazardous weather outlook, Aug 6, 4:19 AM CDT, 11 hours 9 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 6, 6:37 PM CDT | Special Weather Statement | DMX | Taylor | 53 min |
Nearby
Flash Flood Watches in Iowa, 2014Every flash flood watch in 2014
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.