Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 71, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 16, 1990, 2:16 PM CDT for Davis County, Jefferson County, Van Buren County, Iowa. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Jun 16, 1990, 2:16 PM CDT (19:16 UTC)
- Expired
- Jun 16, 1990, 3:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Davis County, IA, Jefferson County, IA, Van Buren 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 12:00Z, 7.3 hours before the alert went out and 361 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
- 3656 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 237 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 161915
SVRDSM
IAC051-101-177-162000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
216 PM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTHEAST IOWA
...DAVIS...JEFFERSON...VAN-BUREN
AT 210 PM...WEATHER RADAR INDICATED TWO SEVERE THUNDERSTORMS IN
SOUTHEAST IOWA.
THE FIRST STORM WAS OVER EXTREME EASTERN WAPELLO COUNTY...JUST A FEW
MILES EAST OF OTTUMWA...AND IT WAS MOVING EAST AT 30 MILES AN HOUR.
THIS STORM WILL BE AFFECTING THE CITIES OF FAIRFIELD...BATAVIA...AND
LOCKRIDGE.
THE SECOND STORM WAS OVER DAVIS COUNTY...ABOUT 20 MILES SOUTH OF
OTTUMWA. THIS STORM WAS MOVING EAST-NORTHEAST AT 30 MILES AN
HOUR...AND WILL BE AFFECTING THE CITIES OF BLOOMFIELD...TROY...AND
KEOSAUQUA.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES...SO REMAIN ALERT.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
JM/TRUETT/ELLISWhat 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 16, 10:25 AM CDT, 3 hours 51 minutes before
IAZALL-161630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1025 AM CDT SAT JUN 16 1990 ...SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND SOUTHEAST IOWA CANCELLED... ...FLASH FLOOD/FLOOD WATCH FOR THE IOWA THE REST OF TODAY AND TONIGHT... THE SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND SOUTHEAST IOWA HAS BEEN CANCELLED. NUMEROUS THUNDERSTORMS CONTINUED OVER THE SOUTHERN TWO THIRDS OF IOWA LATE THIS MORNING. HOWEVER...THE STORMS ARE NO LONGER EXPECTED TO BE SEVERE. A FLASH FLOOD/FLOOD WATCH IS IN EFFECT FOR THE ENTIRE STATE OF IOWA FOR THE REST OF TODAY AND TONIGHT. THUNDERSTORMS MOVING ACROSS THE SOUTHERN TWO THIRDS OF IOWA WERE MOVING NORTHEAST. THESE THUNDERSTORMS WERE PRODUCING AREAS OF HEAVY RAINS. NUMEROUS RIVERS AND STREAMS ARE ALREADY FLOODING IN THE WATCH AREA. PEOPLE SHOULD REMAIN ALERT AND BE PREPARED FOR QUICK ACTION SHOULD FLOODING BE OBSERVED OR A WARNING ISSUED. END/LNE
Special weather statement, Jun 16, 10:49 AM CDT, 3 hours 27 minutes before
IAZALL-161645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1040 AM CDT SAT JUN 16 1990 ...SEVERE THUNDERSTORM WATCH FOR SOUTH CENTRAL AND SOUTHEAST IOWA CANCELLED... ...FLASH FLOOD/FLOOD WATCH FOR THE IOWA THE REST OF TODAY AND TONIGHT... AT 10 30 AM...AN AREA OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAINS EXTENDED FROM SOUTHWEST THROUGH CENTRAL INTO EAST CENTRAL IOWA. THIS AREA WAS NORTH OF A LINE EXTENDING FROM THE SOUTHWEST CORNER OF IOWA THROUGH CEDAR RAPIDS TO DAVENPORT...AND SOUTH OF A LINE FROM OMAHA TO JUST NORTH OF FORT DODGE TO DUBUQUE. THE HEAVIEST SHOWERS AND THUNDERSTORMS WERE LOCATED JUST NORTH OF OTTUMWA...ABOUT 15 MILES SOUTH OF CEDAR RAPIDS...AND IN SOUTHWEST IOWA NEAR ATLANTIC...ABOUT 40 MILES EAST OF OMAHA. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR. SCOTT
Special weather statement, Jun 16, 11:40 AM CDT, 2 hours 36 minutes before
IAZALL-161735- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1140 AM CDT SAT JUN 16 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA THIS AFTERNOON AND TONIGHT... AT 1125 AM...AN 80 MILE WIDE BAND OF NUMEROUS SHOWERS AND THUNDERSTORMS EXTENDED FROM WEST CENTRAL INTO EAST CENTRAL IOWA. THE SOUTHERN EDGE OF THIS PRECIPITATION WAS ALONG INTERSTATE 80 FROM 40 MILES WEST OF COUNCIL BLUFFS NEAR ATLANTIC TO THE QUAD-CITIES. THE PRECIPITATION EXTENDED AS FAR NORTH AS SIOUX CITY...FORT DODGE...WATERLOOO AND DUBUQUE. ALSO WIDELY SCATTERED THUNDERSTORMS WERE OVER THE SOUTHWEST AND SOUTH CENTRAL COUNTIES. THE LARGEST STORMS IN WESTERN IOWA WERE LOCATED FROM EAST OF SHENANDOAH NEAR CLARINDA...NORTH TO SOUTH OF FORT DODGE NEAR OGDEN. THE LARGEST STORM IN SOUTHEAST IOWA WAS LOCATED NORTHEAST OF OTTUMWA NEAR SIGOURNEY. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR. DLF
Special weather statement, Jun 16, 12:39 PM CDT, 1 hour 37 minutes before
IAZALL-161835- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 1240 PM CDT SAT JUN 16 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA THIS AFTERNOON AND TONIGHT... AT 1230 PM...AN AREA OF SHOWERS AND THUNDERSTORMS COVERED ALL OF CENTRAL ...SOUTH CENTRAL AND EAST CEMTRAL IOWA...AND A SMALL PART OF NORTH CENTRAL IOWA. SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN WERE LOCATED IN SOUTH CENTRAL IOWA SOUTH OF RATHBUN RSESERVOIR...AND EXTENDED SOUTH TO THE MISSOURI BORDER. A THUNDERSTORM WITH VERY HEAVY RAINS WAL ALSO LOCATED JUST NORTH OF OTTUMWA. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. SCOTT
Special weather statement, Jun 16, 12:45 PM CDT, 1 hour 31 minutes before
IAZ013-014-161800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 1243 PM CDT SAT JUN 16 1990 ...STRONG THUNDERSTORMS DEVELOPING OVER SOUTHERN IOWA... AT 1240 PM...THUNDERSTORMS WERE INTENSIFYING OVER SOUTHERN IOWA. THIS CLUSTER OF STORMS EXTENDED FROM JUST EAST OR CORYDON TO NEAR ALBIA...OR SOME 30 TO 40 MILES SOUTHWEST OF OTTUMWA. THIS STORM CLUSTER WAS MOVING NORTHEAST AT 35 MILES AN HOUR...AND EXTREMELY HEAVY RAINS AND ]SMALL HAIL CAN BE EXPECTED WITH THIS STORM. ALL PEOPLE IN THE RATHBUN LAKE RECREATIONAL AREA SHOULD SEEK SHELTER IN A SAFE...STURDY PERMANENT SHELTER. TRUETT
Special weather statement, Jun 16, 1:19 PM CDT, 57 minutes before
IAZALL-161930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 120 PM CDT SAT JUN 16 1990 ...SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST IOWA UNTIL 7 PM THIS EVENING... ...FLASH FLOOD AND FLOOD WATCH FOR THE ENTIRE STATE FOR THE REST OF AFTERNOON AND TONIGHT... AT 115 PM...STRONG THUNDERSTORMS CONTINUED OVER SOUTH CENTRAL IOWA. THESE STORMS WERE LOCATED WEST OF A LINE FROM SIGOURNEY...NEAR OTTUMWA TO IOWA/MISSOURI BORDER JUST WEST OF BLOOMFIELD. VERY HEAVY RAINS...SMALL HAIL...AND DANGEROUS LIGHTNING ARE LIKELY WITH THE PASSAGE OF THESE STORMS. PERSON DRIVING IN SOUTH CENTRAL IOWA SHOULD NOT ATTEMPT DRIVE THROUGH WATER UNKNOWN DEPTH. IN ADDITION...SHOWERS AND THUNDERSTORMS CONTINUED OVER MUCH OF THE STATE EXCEPT IN THE EXTREME WEST...NORTH AND SOUTHEAST COUNTIES. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR. JM/SCOTT
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 6:13 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 62 min |
| Jun 16, 6:17 AM CDT | Tornado Warning | DMX | Polk | 43 min |
| Jun 16, 6:41 AM CDT | Flash Flood Warning | DMX | Polk | 3 hr |
| Jun 16, 7:12 AM CDT | Tornado Warning | DMX | Jasper | 33 min |
| Jun 16, 7:22 AM CDT | Flash Flood Warning | DMX | Dallas | 4 hr |
| Jun 16, 9:16 AM CDT | Flash Flood Warning | DMX | Marion, Warren | 3 hr |
| Jun 16, 9:48 AM CDT | Flash Flood Warning | DMX | Johnson | 3 hr |
| Jun 16, 1:36 PM CDT | Flash Flood Warning | DMX | Union | 114 min |
| Jun 16, 1:36 PM CDT | Tornado Warning | DMX | Mahaska | 54 min |
| Jun 16, 1:36 PM CDT | Tornado Warning | DMX | Keokuk, Wapello | 44 min |
| Jun 16, 4:51 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 39 min |
| Jun 16, 5:15 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Union | 30 min |
| Jun 16, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 26 min |
| Jun 16, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 26 min |
| Jun 16, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 29 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.