Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 25, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Mar 14, 1990, 12:45 AM CST for Cass County, Iowa. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Mar 14, 1990, 12:45 AM CST (06:45 UTC)
- Expired
- Mar 14, 1990, 1:20 AM CST
- In force
- 35 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Cass 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
Omaha, NE (KOAX), launched 00:00Z, 6.8 hours before the alert went out and 120 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
- 3595 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 98 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 140647
SVRDSM
IAC077-029-073-140725-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1245 AM CST WED MAR 14 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 125 AM CST FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE WEST CENTRAL PART OF IOWA
GUTHRIE...GREENE...
IN THE SOUTHWEST PART OF IOWA
CASS...
AT 1240 AM...WEATHER RADAR IN DES MOINES INDICATED A LINE OF SEVERE
THUNDERSTORMS IN WEST CENTRAL IOWA. THE STORMS WERE LOCATED ABOUT
60 MILES SOUTHWEST TO 70 MILES NORTHWEST OF DES MOINES. THE
STORMS WERE MOVING NORTHEAST AT 40 TO 45 MILES AN HOUR.
PEOPLE IN ATLANTIC...GUTHRIE CENTER...AND JEFFERSON SHOULD
EXPECT THESE SEVERE STORMS TO MOVE THROUGH THEIR COMMUNITIES.
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.
IN ADDITION...THESE STORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADV>ANCED WARNING SO BE ON THE LOOKOUT.
CORBETTWhat 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, Mar 13, 9:51 PM CST, 2 hours 54 minutes before
IAZALL-140330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 950 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL MIDNIGHT...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 1 AM... ...FLASH FLOOD WATCH FOR ALL BUT FAR NORTHWEST IOWA TONIGHT... AT 930 PM...AN ISOLATED STRONG THUNDERSTORM WAS LOCATED IN NORTHEAST IOWA...45 MILES NORTHEAST OF WATERLOO NEAR POSTVILLE. ANOTHER STRONG THUNDESTORM WAS JUST NORTH OF CEDAR RAPIDS OF EAST CENTRAL IOWA. VERY HEAVY RAIN AND SMALL HAIL ALONG WITH GUSTY WINDS OF 40 TO 50 MILES AN HOUR CAN BE EXPECTED WITH THE PASSAGE OF THESE STORMS. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE IN THE NORTHWEST... NORTH CENTRAL...NORTHEAST...AND EAST CENTRAL COUNTIES OF THE STATE. SCATTERED SHOWERS WERE ALSO IN THE SOUTHWEST COUNTIES OF IOWA. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHAST AT 40 TO 45 MILES AN HOUR. MG
Special weather statement, Mar 13, 10:18 PM CST, 2 hours 27 minutes before
IAZALL-140330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1018 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL MIDNIGHT...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 1 AM... ...FLASH FLOOD WATCH FOR ALL BUT FAR NORTHWEST IOWA TONIGHT... AT 1010 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER NORTHWEST... NORTH CENTRAL AND NORTHEAST IOWA. ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER THE REMAINDER OF THE STATE. THE STRONGEST THUNDERSTORM IN IOWA WAS 45 MILES WEST OF DES MOINES NEAR ADAIR. VERY HEAVY RAIN AND SMALL HAIL ALONG WITH STRONG GUSTY WINDS CAN EXPECTED WITH THE PASSAGE OF THE THUNDERSTORMS. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR. MG
Local storm report, Mar 13, 10:19 PM CST, 2 hours 26 minutes before
LOCAL STORM REPORT...RESEND FOR ADDITIONAL REPORTS
NATIONAL WEATHER SERVICE DES MOINES IA
1020 PM CST TUE MAR 13 1990
TIME EVENT AND LOCATION
134 PM CST MARBLE SIZE HAIL AND HEAVY RAINS BETWEEN
OXFORD JUNCTION AND WYOMING/JONES COUNTY/
210-215 PM EXTREMELY HEAVY RAINS /CARROLL COUNTY/
330-340 PM TORNADO ON THE GROUND ABOUT 6 MILES EAST
OF BLOOMFIELD /DAVIS COUNTY/
350 PM TORNADO 6 MILES NORTHEAST OF BLOOMFIELD.
LINES DOWN...BARNS BLOWN OVER.
410 PM MARBLE SIZE HAIL IN COVINGTON AND HIAWATHA
JUST NORTHWEST OF CEDAR RAPIDS/LINN COUNTY/
453 PM TORNADO ON THE GROUND AT PRAIRIEBURG IN EXTREME
NORTHEAST LINN COUNTY
538 PM HEAVY RAINS AND MARBLE SIZE HAIL IN WEST BRANCH
/CEDAR COUNTY/
720 PM TORNADO IN RURAL WAUKEE IN DALLAS COUNTY
725-735 PM TWO CONFIRMED REPORTS OF TORNADOES IN OGDEN AND
RIDGEPORT 8 NORTH OF BOONE /BOONE COUNTY/
REPORTS OF SEVERAL ROOFS BLOWN OFF...DAMAGE TO
OUTBUILDINGS AND LIVESTOCK DESTROYED AT A FARM.
740 PM A TORNADO SOUTH OF THE TOWN OF STRATFORD DAMAGED
A FARM. /HAMILTON COUNTY/
800-805 PM TORNADO ON THE GROUND EAST OF ANKENY...SEVERAL
HOUSES DAMAGED ON THE SOUTHEAST SIDE OF THE CITY.
CARS REPORTED BLOWN OFF THE HIGHWAY
JMSpecial weather statement, Mar 13, 10:49 PM CST, 1 hour 56 minutes before
IAZALL-140330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1048 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL MIDNIGHT...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 1 AM... ...FLASH FLOOD WATCH FOR ALL BUT FAR NORTHWEST IOWA TONIGHT... AT 1033 PM...SCATTERED VERY STRONG THUNDERSTORMS WERE IN EXTREME WEST CENTRAL IOWA...FROM 15 MILES NORTH OF OMAHA/COUNCIL BLUFFS TO 20 MILES NORTHEAST OF SIOUX CITY. VERY HEAVY RAIN...HAIL AND VERY STRONG WINDS OF 50 TO 70 MILES AN HOUR CAN BE EXPECTED WITH THE PASSAGE OF THESE THUNDERSTORMS. OTHER SCATTERED SHOWERS WERE IN THE NORTHWEST...NORTH CENTRAL... NORTHEAST AND EAST CENTRAL COUNTIES OF THE STATE. ISOLATED SHOWERS AND THUNDERSTORMS WERE IN THE SOUTHERN THIRD OF THE STATE. A STRONG THUNDERSTORM WAS 40 MILES WEST OF DES MOINES NEAR GUTHRIE CENTER. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTH NORTHEAST AT 35 TO 40 MILES AN HOUR. MG
Special weather statement, Mar 13, 10:57 PM CST, 1 hour 48 minutes before
IAZALL-140330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION NATIONAL WEATHER SERVICE DES MOINES IA 1048 PM CST TUE MAR 13 1990 ...TORNADO WATCH FOR WESTERN HALF UNTIL MIDNIGHT...SEVERE THUNDERSTORM WATCH FOR EASTERN HALF UNTIL 1 AM... ...FLASH FLOOD WATCH FOR ALL BUT FAR NORTHWEST IOWA TONIGHT... AT 1033 PM...SCATTERED VERY STRONG THUNDERSTORMS WERE IN EXTREME WEST CENTRAL IOWA...FROM 15 MILES NORTH OF OMAHA/COUNCIL BLUFFS TO 20 MILES NORTHEAST OF SIOUX CITY. VERY HEAVY RAIN...HAIL AND VERY STRONG WINDS OF 50 TO 70 MILES AN HOUR CAN BE EXPECTED WITH THE PASSAGE OF THESE THUNDERSTORMS. OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE IN THE NORTHWEST... NORTH CENTRAL...NORTHEAST AND EAST CENTRAL COUNTIES OF THE STATE. ISOLATED SHOWERS AND THUNDERSTORMS WERE IN THE SOUTHERN THIRD OF IOWA. A STRONG THUNDERSTORMS WAS 40 MILES WEST OF DES MOINES NEAR GUTHRIE CENTER. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTH NORTHEAST AT 35 TO 40 MILES AN HOUR. MG
Special weather statement, Mar 13, 11:47 PM CST, 58 minutes before
IAZALL-140330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1145 PM CST TUE MAR 13 1990 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF CENTRAL IOWA UNTIL 4 AM... ...FLASH FLOOD WATCH FOR ALL BUT FAR NORTHWEST IOWA TONIGHT... AT 1125 PM...VERY STRONG THUNDERSTORMS WERE IN NORTHWEST IOWA... 10 TO 15 MILES SOUTHWEST OF STORM LAKE OF SOUTHWEST BUENA VISTA COUNTY. THESE STRONG THUNDERSTORMS WERE PART OF A LARGER AREA THUNDERSTORMS THAT EXTENDED FROM WEST OF A LINE FROM THE IOWA/MINNESOTA BORDER NEAR SPIRIT LAKE...TO THE IOWA/MISSOURI BORDER SOUTH OF SHENANDOAH. OTHER ISOLATED SHOWERS AND THUNDERSTORMS WERE IN THE EASTERN HALF OF THE STATE...GENERALLY EAST OF LINE FROM NEAR MASON CITY IN NORTH CENTRAL IOWA TO THE IOWA/MISSOURI BORDER SOUTHWEST OF DES MOINES NEAR BEDFORD. THE SHOWERS AND THUNDERSTORMS IN WESTERN IOWA WERE MOVING NORTH AT 40 TO 45 MILES AN HOUR...WHILE THE THUNDERSTORMS IN THE EAST HALF OF THE STATE WERE MOVING NORTH NORTHEAST AT 35 MILES AN HOUR. MG
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 6:09 PM CST | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk | 46 min |
| Mar 13, 7:40 PM CST | Severe Thunderstorm Warning | DMX | Hamilton | 35 min |
| Mar 13, 7:48 PM CST | Tornado Warning | DMX | Hamilton | 52 min |
| Mar 13, 8:12 PM CST | Tornado Warning | DMX | Polk | 25 min |
| Mar 13, 8:30 PM CST | Tornado Warning | DMX | Story | 35 min |
| Mar 13, 9:04 PM CST | Tornado Warning | DMX | Hardin | 26 min |
| Mar 13, 11:02 PM CST | Severe Thunderstorm Warning | DMX | Crawford | 28 min |
| Mar 13, 11:44 PM CST | Severe Thunderstorm Warning | DMX | Buena Vista, Clay | 31 min |
| Mar 14, 12:20 AM CST | Severe Thunderstorm Warning | DMX | Cass, Greene, Guthrie | 25 min |
| Mar 14, 12:45 AM CST | Severe Thunderstorm Warning | DMX | Greene | 35 min |
| Mar 14, 12:45 AM CST | Severe Thunderstorm Warning | DMX | Guthrie | 40 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.