Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 9, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Apr 10, 1992, 5:57 PM CDT for Marion County, Iowa. It was in force for 63 min. 4 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
- Apr 10, 1992, 5:57 PM CDT (22:57 UTC)
- Expired
- Apr 10, 1992, 7:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Marion County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 10, 6:15 PM CDT | Hail 1.75 | Marion, IA | |
| Apr 10, 6:15 PM CDT | Hail 1.75 | Marion, IA | |
| Apr 10, 6:15 PM CDT | Hail 1.75 | Marion, IA | |
| Apr 10, 6:55 PM CDT | Hail 1.75 | Marion, 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, 11.0 hours before the alert went out and 273 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
- 647 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 245 m²/s²
- 0-3 km storm-relative helicity
- 265 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 102257
SVRDSM
IAC125-110000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
557 PM CDT FRI APR 10 1992
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTY
IN THE SOUTH CENTRAL PART OF IOWA
MARION
AT 555 PM CDT A SEVERE THUNDERSTORM WAS LOCATED IN NORTH CENTRAL
MARION COUNTY OF CENTRAL IOWA. THIS WAS JUST NORTH OF KNOXVILLE
OR ABOUT 20 MILES SOUTHEAST OF DES MOINES. SEVERE THUNDERSTORMS
WERE ALSO INDICATED IN WARREN COUNTY. THESE STORMS WERE MOVING
EAST AROUND 35 TO 40 MILES AN HOUR.
PERSONS IN THE TOWNS OF KNOXVILLE...PLEASANTVILLE...PELLA...
MELCHER...DALLAS...AND ATTICA ARE IN THE PATH OF THESE STORMS.
REMEMBER...SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MILES
AN HOUR...LARGE HAIL...DANGEROUS LIGHTNING...AND VERY HEAVY RAINS.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOU HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
ADAMSWhat 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, Apr 10, 3:41 PM CDT, 2 hours 16 minutes before
IAZALL-102140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 340 PM CDT FRI APR 10 1992 ...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE SOUTHEAST HALF OF IOWA UNTIL 10 PM THIS FRIDAY EVENING... AT 327 PM CDT...WIDELY SCATTERED THUNDERSTORMS WITH HEAVY RAIN WERE OCCURRING OVER CENTRAL THROUGH SOUTHWEST IOWA. THE STORMS WERE WITHIN A 25 MILE WIDE BAND FROM 40 MILES WEST OF DES MOINES TO 30 MILES SOUTHEbAST OF OMAHA/COUNCIL BLUFFS. THE STORMS WERE MOVING EAST AT 35 MILES AN HOUR. RICHTER
Special weather statement, Apr 10, 4:15 PM CDT, 1 hour 42 minutes before
IAZALL-102210- SPECIAL WEATHER STATEMENT AND IOWA WEATHER UPDATE NATIONAL WEATHER SERVICE DES MOINES IA 412 PM CDT FRI APR 10 1992 ...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE SOUTHEAST HALF OF IOWA UNTIL 10 PM THIS FRIDAY EVENING... AT 405 PM CDT...A THUNDERSTORM WITH HEAVY RAIN WAS OVER SOUTHWEST IOWA. THE STORM WAS LOCATED 50 MILES EAST OF OMAHA/COUNCIL BLUFFS...NEAR ANITA. THE STORM WAS MOVING EAST AT 40 MILES AN HOUR. THE STORM WILL BE MOVING INTO EAST DALLAS COUNTY NEAR REDFIELD...OR 25 MILES EAST OF DES MOINES AT 5 PM. OTHER THUNDERSTORMS WILL DEVELOP OVER CENTRAL THROUGH SOUTHWEST IOWA. RICHTER
Special weather statement, Apr 10, 4:44 PM CDT, 1 hour 13 minutes before
IAZALL-102240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 440 PM CDT FRI APR 10 1992 ...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE SOUTHEAST HALF OF IOWA UNTIL 10 PM THIS FRIDAY EVENING... AT 430 PM CDT...A VERY STRONG THUNDERSTORM WAS LOCATED OVER CENTRAL IOWA. THE STORM WAS LOCATED 25 MILES NORTHEAST OF DES MOINES. LARGE HAIL AND HEAVY RAIN ARE POSSIBLE WITH THIS STORM. OTHER THUNDERSTORMS AND RAIN SHOWERS WERE OCCURRING OVER THE SOUTHWEST. THE BAND OF STORMS AND SHOWERS WAS 25 MILES WIDE AND CENTERED FROM REDFIELD...OR 25 MILES WEST OF DES MOINES...TO 35 MILES SOUTHEAST OF OMAHA/COUNCIL BLUFFS. THE STORMS WERE MOVING EAST AT 40 MILES AN HOUR. IF YOU SEE THREATENING WEATHER...TAKE SHELTER IMMEDIATELY AND KEEP ABREAST OF THE LATEST WEATHER INFORMATION. RICHTER/MILLER
Special weather statement, Apr 10, 5:02 PM CDT, 55 minutes before
IAZALL-102310- SPECIAL WEATHER STATEMENT AND IOWA WEATHER UPDATE NATIONAL WEATHER SERVICE DES MOINES IA 502 PM CDT FRI APR 10 1992 ...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE SOUTHEAST HALF OF IOWA UNTIL 10 PM THIS FRIDAY EVENING... AT 500 PM CDT...A VERY STRONG THUNDERSTORM WITH VERY HEAVY RAIN WAS INDICATED OVER SOUTHWEST IOWA. THE STORM WAS INDICATED OVER GREENFIELD ...OR 45 MILES SOUTHWEST OF DES MOINES. MARBLE TO GOLF BALL SIZED HAIL AND GUSTY SURFACE WINDS WERE REPORTED WITH THIS STORM. THE STORM WAS MOVING EAST AT 40 MILES AN HOUR. THE STORM WILL BE MOVING INTO SOUTHERN MADISON COUNTY...SOUTH OF WINTERSET ...AT 545 PM. RICHTER
Special weather statement, Apr 10, 5:45 PM CDT, 12 minutes before
IAZALL-102345- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 545 PM CDT FRI APR 10 1992 ...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF THE SOUTHEAST HALF OF IOWA UNTIL 10 PM THIS FRIDAY EVENING... AT 532 PM CDT...AN INTENSE THUNDERSTORM WAS INDICATED OVER CENTRAL IOWA. THE STORM WAS LOCATED 25 MILES SOUTHWEST OF DES MOINES OVER WINTERSET. MARBLE TO GOLF BALL SIZED HAIL...GUSTS UP TO 70 MILES AN HOUR...AND BRIEF VERY HEAVY RAIN WERE REPORTED WITH THIS STORM. ALSO...OTHER STRONG THUNDERSTORMS WERE LOCATED 20 MILES SOUTHEAST OF DES MOINES. THE STORMS WERE MOVING EAST AT 35 MILES AN HOUR. IF YOU SEE THREATENING WEATHER...TAKE SHELTER IMMEDIATELY AND KEEP ABREAST OF THE LATEST WEATHER INFORMATION. RICHTER/MILLER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 6:18 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 42 min |
| Apr 10, 3:57 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | 72 min |
| Apr 10, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall | |
| Apr 10, 4:55 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison | 25 min |
| Apr 10, 5:12 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 48 min |
| Apr 10, 5:37 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 53 min |
| Apr 10, 5:46 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan | 44 min |
| Apr 10, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 52 min |
| Apr 10, 6:10 PM CDT | Flash Flood Warning | DMX | Madison, Warren | 2 hr |
| Apr 10, 6:26 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 34 min |
| Apr 10, 6:27 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek | 63 min |
| Apr 10, 6:34 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 34 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.