Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 43, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 7, 1990, 5:40 PM CDT for Davis County, Iowa. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Jun 7, 1990, 5:40 PM CDT (22:40 UTC)
- Expired
- Jun 7, 1990, 6:05 PM CDT
- In force
- 25 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Davis County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 10.7 hours before the alert went out and 337 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
- 581 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 072241
SVRDSM
IAC051-072315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
540 PM CDT THU JUN 7 1990
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST IOWA
...DAVIS
AT 535 PM RADAR INDICATED A SEVER STORM IN NORTHWEST DAVIS COUNTY OR
ABOUT 15 MILES TO THE SOUTHWEST OF OTTUMWA.
THE STORM IS MOVING TO THE EAST AT 35 MILES AN HOUR AND WILL BE MOVING
INTO THE BLOOMFIELD AND FLORIS AREA BETWEEN 545 PM AND 600 PM.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STANDL BY WINDOWS. DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
WEINBRECHTWhat 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 7, 11:41 AM CDT, 5 hours 59 minutes before
IAZALL-071730- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1140 AM CDT THU JUN 7 1990 ...STRONG THUNDERSTORMS CONTINUE MOVING ACROSS SOUTHWEST IOWA... AT 1125 AM...A LINE OF STRONG THUNDERSTORMS COTINUE TO MOVE ACROSS SOUTHWEST INTO CENTRAL IOWA. THE LINE OF STORMS STRETCHED FROM NEAR AUDUBON TO THE IOWA/MISSOURI BORDER NEAR BEDFORD...OR FROM 70 MILES WEST THROUGH 90 MILES SOUTHWEST OF DES MOINES. THESE STORMS WERE MOVING EAST AT 45 MILES AN HOUR. THESE STRONG THUNDERSTORMS...HAVE BEEN PRODUCING VERY HEAVY RAINFALL ...FREQUENT DANGEROUS LIGHTNING...AND COULD PRODUCE STRONG GUSTY WIND AND POSSIBLY SOME SMALL HAIL. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT FOR FOR RAPIDLY CHANGING WEATHER CONDITIONS...AND BE PREPARED TO SEEK SHELTER IMMEDIATELY SHOULD THREATENING WEATHER APPROACH. OVER THE REMAINDER OF WESTERN AND CENTRAL AREAS OF THE STATE... THERE WERE NUMEROUS SHOWERS AND THUNDERSTO2RMS...ALL MOVING EAST AT AROUND 45 MILES AN HOUR. WPM
Special weather statement, Jun 7, 12:39 PM CDT, 5 hours 1 minute before
IA002-003-007-071830 SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR NORTHEAST IOWA NATIONAL WEATHER SERVICE WATERLOO IA 1230 PM CDT THU JUN 7 1990 AT 1220 PM CDT SHOWERS AND THUNDERSTORMS HAD SPREAD INTO GRUNDY COUNTY AND EXTREME SOUTHWESTERN BLACK HAWK COUNTY. CITIES IN THE PATH OF THESE STORMS INCLUDE GRUNDY CENTER...REINBECK AND HUDSON. THESE STORMS WILL POSSIBLY PRODUCE WINDS OF 30 TO 40 MILES AN HOUR. THE STORMS WERE MOVING TO THE EAST/NORTHEAST AT 30 TO 40 MILES AN HOUR. TEMPERATURES AROUND THE REGION WERE IN THE LOWER 70S AND THE WINDS WERE FROM THE WERE FROM THE SOUTHEAST AT 10 TO 20 MILES AN HOUR. FOR THE NEXT FEW HOURS THE SHOWERS AND THUNDERSTORMS WILL OVERSPREAD FRANKLIN...BUTLER...BLACK HAWK...AND BUCHANAN COUNTIES. TEMPERATURES WILL HOLD IN THE LOWER 70S AND THE WINDS WILL REMAIN FROM THE SOUTHEAST AT 10 TO 20 MILES AN HOUR. COLLAR
Special weather statement, Jun 7, 12:39 PM CDT, 5 hours 1 minute before
IAZALL-071830- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1240 PM CDT THU JUN 7 1990 ...STRONG THUNDERSTORMS LOCATED OVER EXTREME SOUTH CENTRAL IOWA... AT 1225 PM...ISOLATED STRONG THUNDERSTORMS WERE LOCATED NEAR THE EXTREME SOUTH CENTRAL IOWA/MISSOURI BORDER...BETWEEN LAMONI AND ALLERTON...OR 55 MILES THROUGH 75 MILES SOUTHWEST OF OTTUMWA. THESE THUNDERSTORMS WERE PRODUCING BRIEF VERY HEAVY RAINFALL...FREQUENT DANGEROUS LIGHTNING...AND COULD ALSO PROCUDE STRONG GUSTY WIND AND SOME SMALL HAIL AS THEY MOVE RAPIDLY EAST AT AROUND 45 MILES AN HOUR. OVER THE REMAINDER OF IOWA...NUMEROUS SHOWERS AND THUNDERSTORMS CONTINUED OVER AN AREA SOUTH AND WEST OF A LINE EXTENDING FROM SIOUX CITY...TO WATERLOO...TO THE IOWA/MISSOURI BORDER SOUTH OF OTTUMWA. WPM/DLF THERE WERE NUMEROUS SHOWERS AND THUNDERSTORMS...ALL MOVING EAST AT AROUND 45 MILES AN HOUR. WPM
Special weather statement, Jun 7, 12:41 PM CDT, 4 hours 59 minutes before
IAZALL-071830- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1240 PM CDT THU JUN 7 1990 ...STRONG THUNDERSTORMS LOCATED OVER EXTREME SOUTH CENTRAL IOWA... AT 1225 PM...ISOLATED STRONG THUNDERSTORMS WERE LOCATED NEAR THE EXTREME SOUTH CENTRAL IOWA/MISSOURI BORDER...BETWEEN LAMONI AND ALLERTON...OR 55 MILES THROUGH 75 MILES SOUTHWEST OF OTTUMWA. THESE THUNDERSTORMS WERE PRODUCING BRIEF VERY HEAVY RAINFALL...FREQUENT DANGEROUS LIGHTNING...AND COULD ALSO PROCUDE STRONG GUSTY WIND AND SOME SMALL HAIL AS THEY MOVE RAPIDLY EAST AT AROUND 45 MILES AN HOUR. OVER THE REMAINDER OF IOWA...NUMEROUS SHOWERS AND THUNDERSTORMS CONTINUED OVER AN AREA SOUTH AND WEST OF A LINE EXTENDING FROM SIOUX CITY...TO WATERLOO...TO THE IOWA/MISSOURI BORDER SOUTH OF OTTUMWA. WPM/DLF
Local storm report, Jun 7, 1:37 PM CDT, 4 hours 3 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
138 PM CDT THU JUN 7 1990
1135 AM TO 1200 DAMAGE IN DALLAS COUNTY ESPECILLY NEAR MINBURN. ONE
MOBILE HOME DESTROYED. POSSIBLE SMALL TORNADO BUT NO
CONFIRMATION...PROBABLE DOWNBURST. OCCURRED VERY QUICLY.
1135 AM ESTIMATED 80 MPH WINDS WITH TREES AND POWER LINES DOWNED
ALONG HIGHWAY P46 WEST OF ADEL FROM GASLINE CREW.
/DALLAS CNTY/
1142 AM 10 SOUTH PERRY BARN/MACHINE SHED AND TELEPHONE POOLS
BLOWN DOWN. /DALLAS CNTY/
1040 AM PERRY AIRPORT WIND GUST 60 MPH. /DALLAS CNTY/
1150 AM PUBLIC REPORT FUNNEL CLOUD NEAR DALLAS CENTER /DALLAS CNTY/
1150 AM HIGHWAY PATROL REPORTED STRONG WINDS NEAR WAUKEE ON I80.
NO SPEED ESTIMATE-NO DAMAGE. /POLK CNTY/
1206 PM 40 TO 50 MPH WINDS IN NORTHERN ANKENY. NO DAMAGE /POLK CNTY/
MYERSThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 11:45 AM CDT | Severe Thunderstorm Warning | DMX | Dallas | 20 min |
| Jun 7, 11:54 AM CDT | Severe Thunderstorm Warning | DMX | Polk | 18 min |
| Jun 7, 12:01 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 23 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1990Every severe thunderstorm warning in 1990
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.