Alert archive / Iowa / Tornado Warnings in 1992
Tornado Warning 15, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jul 2, 1992, 2:58 PM CDT for Mahaska County, Iowa. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jul 2, 1992, 2:58 PM CDT (19:58 UTC)
- Expired
- Jul 2, 1992, 3:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Mahaska County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 8.0 hours before the alert went out and 311 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
- NaN m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 368 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 021957 TORDSM IAC123-022030- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 258 PM CDT THU JUL 2 1992 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 330 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL IOWA ...SOUTHEASTERN MAHASKA COUNTY AT 256 PM...DES MOINES RADAR INDICATED A TORNADO NEAR CEDAR...OR 15 MILES NORTHWEST OF OTTUMWA. THE STORM WAS MOVING EAST AT 35 MILES AN HOUR...AND WILL AFFECT THE TOWNS OF CEDAR...WRIGHT AND FREMONT. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. MYERS
What forecasters said that day
The local office's own words before this tornado 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 2, 12:48 PM CDT, 2 hours 10 minutes before
IAZALL-021845- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1245 PM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR EAST CENTRAL AND SOUTHEAST IOWA UNTIL 5 PM... AT 1227 PM CDT...STRONG THUNDERSTORMS CONTINUED OVER EXTREME SOUTHEAST AND EAST CENTRAL IOWA. THE STRONGEST STORMS WERE LOCATED 25 MILES SOUTHWEST OF DAVENPORT...ALONG THE ILLINOIS BORDER. STRONG WINDS... VERY HEAVY RAINS...AND FREQUENT DEADLY LIGHTNING CAN BE EXPECTED WITH THESE STORMS. THESE STRONG STORMS WERE IN A LARGER AREA OF PRECIPITATION WHICH WAS OVER THE EASTERN THIRD OF IOWA. THE TRAILING EDGE OF THIS PRECIPITATION EXTENDED FROM THE MINNESOTA BORDER...35 MILES NORTHEAST OF MASON CITY... TO 40 MILES ZEAST OF DES MOINES...NEAR NEW SHARON...TO THE MISSOURI BORDER...SOUTH OF OTTUMWA. THE STORMS WERE MOVING EAST 45 MILES AN HOUR. FILLBACH
Special weather statement, Jul 2, 1:48 PM CDT, 1 hour 10 minutes before
IAZALL-021945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 145 PM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR EAST CENTRAL AND SOUTHEAST IOWA UNTIL 5 PM... AT 135 PM CDT...RAINSHOWERS AND SCATTERED THUNDERSTORMS WERE OVER THE EASTERN THIRD OF IOWA. THE SHOWERS AND STORMS WERE EAST OF A LINE THAT EXTENDED FROM THE MINNESOTA BORDER...NORTHEAST OF MASON CITY...TO 20 MILES WEST OF CEDAR RAPIDS...TO THE MISSOURI BORDER...SOUTHWEST OF OTTUMWA. THE STRONGEST STORMS WERE IN SOUTHEAST IOWA. THE STORMS WERE BETWEEN OTTUMWA AND BURLINGTON...NEAR KEOSAUQUA. STRONG WINDS...HEAVY RAINS... DEADLY LIGHTNING ARE POSSIBLE WITH THESE STORMS. THE STORMS WERE MOVING EAST 45 MILES AN# HOUR. FILLBACH
Local storm report, Jul 2, 2:13 PM CDT, 45 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
215 PM CDT THU JUL 2 1992
TIME COUNTY EVENT AND LOCATION
902 AM CDT DALLAS CO WINDS TO 57 MPH AT PERRY.
915 AM CDT POLK CO. SIDING RIPPED OFF HOUSE AND THROWN
THROUGH WINDOW ACROSS STREET IN
GRIMES.
920 AM CDT POLK CO. STRONG WIND OVER TURNED SEMI AT
I80 AND 141 INTERCHANGE. TREES/
POWER LINES DOWN 4000 BLOCK OF
GRAND IN DES MOINES. SEVERAL TREES
DOWN IN URBANDALE. WINDS TO 60 MPH.
930 AM CDT POLK CO. 3-6 TELEPHONE POLES DOWN IN SOUTHEAST
ANKENY.
1002 AM CDT JASPER CO. VALERIA TREES AND POWER LINES DOWN
1007 AM CDT JASPER CO. NEWTON TREES AND POWER LINES DOWN
1102 AM CDT BENTON CO. WINDS TO 60 MPH AT VINTON.
1115 AM CDT KEOKUK CO WIND TO 60 MPH. TREES AND POWER LINES
DOWN ALL OVER TOWN IN SIGNOURNEY
1119 AM CDT LINN CO WIND TO 60 MPH A CENTER POINT.
1120 AM !CDT LINN CO WIND TO 68 MPH DOWNTOWN CEDAR
RAPIDS.Special weather statement, Jul 2, 2:24 PM CDT, 34 minutes before
IAZALL-022030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 230 PM CDT THU JUL 2 1992 A PORTION OF TORNADO WATCH NUMBER 522 HAS BEEN CANCELLED. THE FOLLOWING COUNTIES HAVE BEEN CLEARED: DELAWARE...DUBUQUE...LINN...JONES...JACKSON...AND JOHNSON. THE REST OF EXTREME EAST CENTRAL AND SOUTHEAST IOWA REMAIN IN A TORNADO WATCH UNTIL 500 PM.
Local storm report, Jul 2, 2:41 PM CDT, 17 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
245 PM CDT THU JUL 2 1992
TIME COUNTY EVENT AND LOCATION
1137 AM CDT DAVIS CO TREE AND POWER LINES DOWN IN
BLOOMFIELD.Special weather statement, Jul 2, 2:45 PM CDT, 13 minutes before
IAZALL-022045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 245 PM CDT THU JUL 2 1992 ...A TORNADO WATCH FOR EXTREME EAST CENTRAL AND SOUTHEAST IOWA UNTIL 5 PM... AT 235 PM CDT...RAINSHOWERS AND SCATTERED THUNDERSTORMS CONTINUED OVER EASTERN THIRD OF IOWA. THE SHOWERS AND STORMS WERE EAST OF A LINE THAT EXTENDED FROM THE MINNESOTA BORDER...NEAR DECORAH TO 20 MILES SOUTHEAST OF OTTUMWA...NEAR FAIRFIELD THEN SOUTHWEST TO THE MISSOURI BORDER...NEAR BLOOMFIELD. ALSO...SHOWERS AND THUNDERSTORMS WERE IN SOUTH CENTRAL AND SOUTHEAST IOWA. THIS PRECIPITATION WAS LOCATED 30 MILES NORTHEAST OF LAMONI TO 15 MILES NORTHWEST OF OTTUMWA...BETWEEN HUMESTON AND OSKALOOSA. THE STORMS WERE MOVING EAST 45 MILES AN HOUR. FILLBACH
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 55 min |
| Jul 2, 1:14 AM CDT | Severe Thunderstorm Warning | DMX | Audubon | 61 min |
| Jul 2, 2:16 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 44 min |
| Jul 2, 9:11 AM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 34 min |
| Jul 2, 9:50 AM CDT | Tornado Warning | DMX | Marshall | 25 min |
| Jul 2, 9:50 AM CDT | Tornado Warning | DMX | Story | 20 min |
| Jul 2, 9:56 AM CDT | Severe Thunderstorm Warning | DMX | Jasper | 34 min |
| Jul 2, 10:09 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 51 min |
| Jul 2, 10:21 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek, Tama | 24 min |
| Jul 2, 10:43 AM CDT | Severe Thunderstorm Warning | DMX | Benton | 42 min |
| Jul 2, 10:44 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 46 min |
| Jul 2, 10:44 AM CDT | Severe Thunderstorm Warning | DMX | Grundy | 23 min |
| Jul 2, 10:55 AM CDT | Severe Thunderstorm Warning | DMX | Keokuk | 43 min |
| Jul 2, 11:08 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 37 min |
| Jul 2, 11:30 AM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 30 min |
| Jul 2, 3:12 PM CDT | Tornado Warning | DMX | Keokuk, Wapello | 21 min |
Nearby
Tornado Warnings in Iowa, 1992Every tornado warning in 1992Tornadoes 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; the sounding from the Mesonet's radiosonde archive.