Alert archive / Iowa / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 52, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 24, 1996, 9:54 AM CDT for Mahaska County, Iowa. It was in force for 31 min. 5 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
- May 24, 1996, 9:54 AM CDT (14:54 UTC)
- Expired
- May 24, 1996, 10:25 AM CDT
- In force
- 31 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Mahaska County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 24, 10:00 AM CDT | Hail 2.5 | Lake Kenoma, IA | |
| May 24, 10:00 AM CDT | Hail 1.75 | Rose Hill, IA | |
| May 24, 10:01 AM CDT | Hail 0.75 | Leighton, IA | |
| May 24, 10:03 AM CDT | Hail 0.75 | Oskaloosa, IA | |
| May 24, 10:30 AM CDT | Hail 0.75 | Rose Hill, 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 2.9 hours before the alert went out and 181 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
- 710 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 352 m²/s²
- 0-3 km storm-relative helicity
- 374 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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, May 24, 4:18 AM CDT, 5 hours 36 minutes before
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-240900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 418 AM CDT FRI MAY 24 1996 VERY STRONG THUNDERSTORMS ARE MOVING THROUGH THE I-35 CORRIDOR...FROM AMES SOUTH TO INDIANOLA. PEA TO MARBLE-SIZED HAIL WAS COMMON THROUGHOUT THE AREA ALONG WITH REPORTS NEAR 3/4 INCH. WINDS WERE OCCASIONALLY GUSTING TO 40-50 MPH. RAINFALL AMOUNTS SINCE 3 AM HAVE BEEN 1 1/2 TO 2 1/2 INCHES. TEMPORARY FLOODING OF LOW LANDS...DITCHES AND STREETS WILL OCCUR THROUGH 5 AM. RISING SMALL STREAMS AND CREEKS WILL OCCUR THROUGH 10 AM. THE HEAVIEST OF THE STORMS WILL BE MOVING INTO THE MARSHALLTOWN...NEWTON AND KNOXVILLE0 AREAS BY 5 AM. MYERS
Special weather statement, May 24, 9:03 AM CDT, 51 minutes before
IAZ074-075-241440- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 903 AM CDT FRI MAY 24 1996 THE SEVERE THUNDERSTORM WARNING FOR NORTHEAST MARION AND NORTHERN MAHASKA COUNTIES HAS BEEN CANCELLED. THE STORM HAS WEAKEN. NUMEROUS REPORTS WERE RECEIVED FROM NORTHEAST MARION COUNTY. THREE MILES SOUTHWEST OF PELLA 3/4 TO 1 INCH HAIL...5 MILES NORTH OF KNOXVILLE GOLFBALL SIZED HAIL...KNIA RADIO IN PELLA REPORTED ONE INCH HAIL...AND 3.5 MILES NORTHEAST OF KNOXVILLE REPORTED ONE INCH HAIL. FORSTER
Special weather statement, May 24, 9:26 AM CDT, 28 minutes before
IAZALL-241400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 925 AM CDT FRI MAY 24 1996 STRONG WINDS WERE BEING REPORTED IN PARTS OF NORTHWEST AND NORTH CENTRAL IOWA. IT APPEARS THAT STRONG WINDS ALOFT ARE BEING TRANSPORTED DOWN TO THE SURFACE. REPORTS OF 55 TO 60 MPH WINDS WERE REPORTED IN POCAHONTAS...CLAY AND PALO ALTO COUNTIES. PEOPLE IN SOUTHERN KOSSUTH...HUMBOLDT...NORTHEN WEBSTER CAN EXPECT THESE STRONG SURFACE WINDS BETWEEN 930 AND 1030 AM CDT. FORSTER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 8:31 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 34 min |
| May 24, 9:17 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 48 min |
| May 24, 9:45 AM CDT | Severe Thunderstorm Warning | DMX | Marion | 35 min |
| May 24, 10:28 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 32 min |
| May 24, 11:08 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 47 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1996Every severe thunderstorm warning in 1996
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.