Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 90, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 19, 1990, 9:50 AM CDT for Appanoose County, Lucas County, Monroe County, Iowa. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jun 19, 1990, 9:50 AM CDT (14:50 UTC)
- Expired
- Jun 19, 1990, 10:45 AM CDT
- In force
- 55 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Appanoose County, IA, Lucas County, IA, Monroe 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, 2.8 hours before the alert went out and 284 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
- 3669 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 605 m²/s²
- 0-3 km storm-relative helicity
- 914 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 191458 COR
SVRDSM
IAC007-117-135-191545-
BULLETIN - IMMEDIATE BROADCAST REQUESTED ...CORRECTED CITY IN LUCAS COUNTY
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
950 AM CDT TUE JUN 19 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 1045 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE SOUTH CENTRAL PART OF IOWA
NORTHWEST APPANOOSE...SOUTHEAST LUCAS...WESTERN MONROE
AT 945 AM CDT A SEVERE THUNDERSTORM WAS LOCATED IN LUCAS COUNTY
NEAR CHARITON...ABOUT 50 MILES SOUTHEAST OF DES MOINES.
THE STORM WAS MOVING SOUTHEAST AT 35 TO 40 MILES AN HOUR.
CITIES IN THE WARNING INCLUDE MELROSE AND ALBIA IN MONROE COUNTY.
RATHBUN AND THE RATHBUN RESERVIOR IN APPANOOSE COUNTY...ALL ABOUT
20 TO 40 MILES WEST OF OTTUMWA...AND RUSSELL IN LUCAS COUNTY.
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 ADVANCED WARNING SO BE ON THE LOOKOUT.
FORSTERWhat 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 19, 7:17 AM CDT, 2 hours 33 minutes before
IAZALL-191300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 715 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR THE ENTIRE STATE TODAY... AT 710 AM...INTENSE THUNDERSTORMS WERE LOCATED OVER CENTRAL AND NORTH CENTRAL IOWA. THE HEAVIEST STORM WAS LOCATED ABOUT 30 MILES NORTHEAST OF DES MOINES BETWEEN NEVADA AND MARSHALLTOWN. WINDS IN EXCESS OF 60 MILES AN HOUR...SMALL HAIL...AND HEAVY RAINS ARE LIKELY WITH THIS STORM. SCATTERED STRONG THUNDERSTORMS WERE OVER PARTS OF WEST CENTRAL IOWA. THESE STORMS WERE CONFINED WEBSTER CITY...CARROLL AND WITHIN 25 MILES NORTHWEST OF DES MOINES. THE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTHEAST AT 45 TO 50 MILES AN HOUR. JM/SCOTT
Special weather statement, Jun 19, 7:48 AM CDT, 2 hours 2 minutes before
IAZALL-191345- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 745 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR THE ENTIRE STATE TODAY... AT 730 AM...AN AREA OF INTENSE THUNDERSTORMS CONTINUED OVER CENTRAL IOWA. THE STORMS WERE LOCATED BETWEEN MARSHALLTOWN AND NEWTON. HEAVY RAINS...STRONG GUSTY WINDS AND MAYBE SOME SMALL HAIL ARE LIKELY WITH THESE STORMS. THE STORMS WILL BE MOVING INTO THE NEWTON... TAMA/TOLEDO AREAS AROUND 8AM. SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE OCCURRING OVER THE CENTRAL THIRD OF THE STATE. THE LEADING EDGE OF THE PRECIPITATION EXTENDED FROM ELKADER IN THE NORTHEAST IOWA....SOUTHWEST TO OTTUMWA TO IOWA/MISSOURI BORDER NEAR MOULTON. THE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTHEAST AT 40 TO 45 MILES AN HOUR. JM/SCOTT
Special weather statement, Jun 19, 8:15 AM CDT, 1 hour 35 minutes before
IAZALL-191430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 815 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA TODAY... ...SEVERE THUNDERSTORM WATCH FOR PARTS OF CENTRAL AND SOUTHERN IOWA UNTIL NOON... AT 805 AM...ISOLATED INTENSE THUNDERSTORMS WERE OVER CENTRAL IOWA... 35 TO 45 MILES WEST OF DES MOINES NEAR GUTHRIE CENTER. EXTREMELY HEAVY RAINS AND BRIEF GUSTY WINDS WERE OCCURRING WITH THESE STORMS. OTHER STRONG STORMS WERE HEAVY RAINS WERE OVER THE CENTRAL COUNTIES ...AROUND DES MOINES...AMES AND STORY CITY. IN ADDITION...NUMEROUS SHOWERS AND SCATTERED STORMS COVERED THE EASTERN THREE-FOURTHS OF IOWA. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST 45 MILES AN HOUR. KS
Special weather statement, Jun 19, 8:43 AM CDT, 1 hour 7 minutes before
IAZALL-191500- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 840 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA TODAY... ...SEVERE THUNDERSTORM WATCH FOR PARTS OF CENTRAL AND SOUTHERN IOWA UNTIL NOON... AT 830 AM...ISOLATED STRONG THUNDERSTORMS WERE OVER CENTRAL IOWA... NEAR JEFFERSON...REDFIELD...MELCHER AND RHODES. VERY HEAVY RAINS WERE OCCURRING WITH THESE STORMS. WHILE MOST OF THE CENTRAL COUNTIES ARE ALREADY WATERLOGGED...FLOODING REMAINS A SERIOUS CONCERN. IN ADDITION...NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS COVERED THE ALL BUT THE WESTERN COUNTIES OF THE STATE. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST AT 45 MILES AN CHOUR. KS
Special weather statement, Jun 19, 9:13 AM CDT, 37 minutes before
IAZALL-191530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 910 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA TODAY... ...SEVERE THUNDERSTORM WATCH FOR PARTS OF CENTRAL AND SOUTHERN IOWA UNTIL NOON... AT 905 AM...ISOLATED STRONG THUNDERSTORMS WERE OVER CENTRAL AND SOUTH CENTRAL IOWA. THE STORMS WERE 20 TO 25 MILES SOUTH AND SOUTHEAST OF DES MOINES NEAR WINTERSET...OSCEOLA AND RED ROCK LAKE AND 20 MILES WEST OF OTTUMWA NEAR ALBIA. LITTLE MORE THAN VERY HEAVY RAINS WERE OCCURRING WITH THESE STORMS. WHILE MOST OF IOWA IS ALREADY WATERLOGGED...FLOOD- ING REMAINS A SERIOUS CONCERN. IN ADDITION...NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS COVERED THE EASTERN THREE-QUARTERS OF THE STATE. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST AT 45 MILES AN HOUR. KS
Special weather statement, Jun 19, 9:42 AM CDT, 8 minutes before
IAZALL-191600- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 940 AM CDT TUE JUN 19 1990 ...FLASH FLOOD/FLOOD WATCH FOR IOWA TODAY... ...SEVERE THUNDERSTORM WATCH FOR PARTS OF CENTRAL AND SOUTHERN IOWA UNTIL NOON... AT 930 AM...AN ISOLATED INTENSE THUNDERSTORM WAS OVER SOUTH CENTRAL IOWA ...30 MILES SOUTH OF DES MOINES NEAR LUCAS. ALONG WITH THE EXCESSIVE RAINFALL...HAIL AND BRIEF GUSTY WINDS ARE LIKELY WITH THIS STORM. IN ADDITION...NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS COVERED THE EASTERN HALF OF THE STATE...EAST OF A LAMONI/FORT DODGE/ALGONA LINE. THE SHOWERS AND STORMS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR. KS
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:22 AM CDT | Severe Thunderstorm Warning | DMX | Dickinson | 28 min |
| Jun 19, 4:39 AM CDT | Severe Thunderstorm Warning | DMX | Clay, Emmet | 31 min |
| Jun 19, 5:35 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 25 min |
| Jun 19, 6:30 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton | 30 min |
| Jun 19, 6:55 AM CDT | Severe Thunderstorm Warning | DMX | Hardin, Story | 25 min |
| Jun 19, 7:18 AM CDT | Severe Thunderstorm Warning | DMX | Marshall | 27 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.