Alert archive / Iowa / Flash Flood Warnings in 1991
Flash Flood Warning 8, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 3, 1991, 8:53 PM CDT for Emmet County, Iowa. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 3, 1991, 8:53 PM CDT (01:53 UTC)
- Expired
- Jun 4, 1991, 12:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Emmet County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 1.9 hours before the alert went out and 185 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
- 10 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1121 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 109 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 040153 FFWDSM IAC063-040500- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE DES MOINES IA 853 PM CDT MON JUN 3 1991 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST IOWA ...EMMET COUNTY A FLASH FLOOD WARNING HAS BEEN ISSUED FOR ALL EMMET COUNTY. THUNDERSTORMS CONTINUED TO PERSIST OVER NORTHWEST IOWA THIS EVENING. AT 845 PM...A SHERIFF OFFICER IN EMMET COUNTY REPORTED OVER THREE INCHES OF RAIN IN ESTHERVILLE WITHIN A 45 MINUTE SPAN. ANY ADDITIONAL RAINS AND RUNOFF FROM PREVIOUS RAINS WILL AGGRAVATE FLOODING THAT HAS ALREADY OCCURRED IN THE AREA. PEOPLE LIVING ALONG STREAMS AND ALONG THE EAST FORK OF THE DES MOINES RIVER SHOULD SEEK HIGH GROUND IMMEDIATELY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. MCQUIRTER
What forecasters said that day
The local office's own words before this flash flood 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 3, 8:05 PM CDT, 48 minutes before
IAZALL-040130-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
740 PM CDT MON JUN 3 1991
AT 730 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE LOCATED IN THE WEST
HALF OF IOWA...INCLUDING A NUMBER OF AREAS WITH VERY HEAVY RAINS. THE
RAIN WAS MOSTLY WEST OF A LINE FROM OTTUMWA TO ESTERVILLE. VERY HEAVY
RAINS...STRONG GUSTY WINDS AND SMALL HAIL MAY BE EXPECTED WITH THE PASSAGE
OF THESE STORMS.{{}
THE HEAVIEST THUNDERSTORMS WERE LOCATED BETWEEN NEVADA AND ELDORA...OR
25 TO 50 MILES NORTHEAST OF DES MOINES. RAINS IN THIS AREA HAVE
PERSISTED FOR SEVERAL HOURS...WITH SOME FLOODING REPORTED IN THE AREA.
VERY HEAVY RAINS WERE ALSO REPORTED IN THE ESTERVILLE AREA OF NORTHWEST
IOWA. THE RAINS WERE ALSO ACOMPANIED WITH PEA TO MARBLE SIZE HAIL...AND
MINOR STREET FLOODING WAS REPORTED.
THUNDERSTORMS WITH HEAVY RAINS...AMD STRONG GUSTY WINDS WERE REPORTED
NEAR MANNING. A BARN WAS ALSO REPORTED DESTROYED BY CARROLL COUNTY
SHERIFF.
THE THUNDERSTORMS WERE MOVING TO THE NORTH AT 20 MILES AN HOUR.
SCOTTThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 10:59 PM CDT | Flash Flood Warning | DMX | Story | 4 hr |
| Jun 4, 2:21 AM CDT | Flash Flood Warning | DMX | Carroll | 4 hr |
| Jun 4, 3:52 AM CDT | Flash Flood Warning | DMX | Webster | 4 hr |
Nearby
Flash Flood Warnings in Iowa, 1991Every flash flood warning in 1991
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.