Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 148, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 31, 1994, 7:55 AM CDT for Mitchell County, Iowa. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1994, 7:55 AM CDT (12:55 UTC)
- Expired
- Jul 31, 1994, 8:30 AM CDT
- In force
- 35 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Mitchell County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 0.9 hours before the alert went out and 178 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
- 4 J/kg
- Mixed-layer CIN
- -306 J/kg
- Mixed-layer LCL
- 1222 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jul 31, 7:11 AM CDT, 44 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 31, 4:54 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 36 min |
| Jul 31, 5:26 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 34 min |
| Jul 31, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago | 29 min |
| Jul 31, 6:02 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 28 min |
| Jul 31, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell, Worth | 44 min |
| Jul 31, 6:33 PM CDT | Tornado Warning | DMX | Mitchell | 27 min |
| Jul 31, 6:41 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 34 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.