Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 41, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 23, 1992, 3:46 PM CDT for Fayette County, Iowa. It was in force for 59 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 23, 1992, 3:46 PM CDT (20:46 UTC)
- Expired
- Jun 23, 1992, 4:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Fayette County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 23, 3:50 PM CDT | Tornado F0 | Fayette, IA | |
| Jun 23, 4:22 PM CDT | Hail 1 | Fayette, IA | |
| Jun 23, 4:44 PM CDT | Hail 0.75 | Fayette, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 8.8 hours before the alert went out and 411 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
- 2221 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Jun 23, 3:41 PM CDT, 5 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 331 PM CDT TUE JUN 23 1992 ...SEVERE THUNDERSTORM WATCH VALID UNTIL 9 PM FOR PARTS OF EASTERN IOWA... AT 325 PM...A STRONG THUNDERSTORM WITH VERY HEAVY RAIN...GUSTY WINDS AND HAIL WAS LOCATED 5 MILES WEST OF DECORAH. ALSO...AN ISOLATED THUNDERSTORM WAS LOCATED JUST NORTH OF THE IOWA/ MISSOURI BORDER 5 MILES SOUTHEAST OF BLOOMFIELD. AN ISOLATED RAIN SHOWER WAS LOCATED 25 MILES WEST OF MASON CITY OR 5 MILES NORTH OF CORWITH. FINALLY...SCATTERED LIGHT RAIN SHOWERS CONTINUED ACROSS PARTS OF CENTRAL AND SOUTHCENTRAL IOWA. MOVEMENT OF ALL ACTIVITY WAS SOUTHEAST AT 25 MILES AN HOUR. R A PRENTICE
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 2:51 PM CDT | Severe Thunderstorm Warning | DMX | Howard, Winneshiek | 54 min |
| Jun 23, 4:02 PM CDT | Tornado Warning | DMX | Fayette | 58 min |
| Jun 23, 4:29 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 31 min |
| Jun 23, 4:55 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 35 min |
| Jun 23, 5:17 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 28 min |
| Jun 23, 5:40 PM CDT | Tornado Warning | DMX | Hamilton, Hardin | 20 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.