Alert archive / Missouri / Flash Flood Warnings in 1992
Flash Flood Warning 1, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 20, 1992, 12:32 AM CDT for Crawford County, Iron County, Washington County, Missouri. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Apr 20, 1992, 12:32 AM CDT (05:32 UTC)
- Expired
- Apr 20, 1992, 6:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Crawford County, MO, Iron County, MO, Washington County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 5.5 hours before the alert went out and 216 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
- 200 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 200536 FFWSTL MOC055-221-065-093-179-201130- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1232 AM CDT MON APR 20 1992 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 630 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...CRAWFORD COUNTY...WASHINGTON COUNTY IN SOUTH CENTRAL MISSOURI ...DENT COUNTY IN SOUTHEAST MISSOURI ...IRON COUNTY...REYNOLDS COUNTY AT 1225 AM CDT...RADAR INDICATED NUMEROUS THUNDERSTORMS WITH HEAVY RAIN 40 MILES EAST OF ROLLA OVER CRAWFORD AND WASHINGTON COUNTIES AND OVER EASTERN DENT AND WESTERN IRON COUNTY. THE RAIN WAS MOVING NORTHEAST AT 35 MILES AN HOUR. MORE SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN WERE OVER NORTHERN ARKANSAS AND WERE MOVING NORTHEAST TOWARD SOUTHERN MISSOURI. MANY STREAMS WERE AT OR NEAR BANKFUL IN THIS AREA AND THE SOIL WAS SATURATED FROM LAST NIGHTS RAIN. PERIODS OF SHOWERS AND THUNDERSTORMS WILL BE OVER THE WARNING AREA THROUGH THE NIGHT. THE ADDITIONAL RAINFALL FROM THE THUNDERSTORMS CURRENTLY OVER THE AREA AND FROM THE THUNDERSTORMS MOVING IN FROM THE SOUTH WILL CAUSE FLASH FLOODING. 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. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. DLF/JP
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, Apr 19, 6:51 PM CDT, 5 hours 41 minutes before
MOZ007-ILZ009-200045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 649 PM CDT SUN APR 19 1992 ...STRONG THUNDERSTORMS WITH HEAVY RAIN AND HAIL WERE OVER NORTHEAST MISSOURI... AT 645 PM...RADAR INDICATED THESE STORMS 15 MILES NORTHWEST OF QUINCY ILLINOIS OVER CANTON MISSOURI AND 20 MILES SOUTHWEST OF QUINCY NEAR NEW LONDON MISSOURI. THE CANTON POLICE REPORTED MABLE SIZE HAIL AT 640 PM CDT. THE STORMS WERE MOVING NORTH AT 35 MILES AN HOUR. THE STORM OVER CANTON MISSOURI WILL BE MOVING INTO HANCOCK COUNTY ILLINOIS BY 715 PM. THE STORM OVER NEW LONDON MISSOURI WILL BE NORTHEAST OF QUINCY ILLINOIS NEAR CAMP POINT BY 745 PM. PEOPLE IN THE TOWNS OF HANNIBAL MISSOURI...HULL ILLINOIS AND QUINCY ILLINOIS CAN EXPECT BRIEF HEAVY DOWNPOURS...HAIL AND WIND GUSTS UP TO 40 MPH BETWEEN 645 PM AND 745 PM CDT. PEOPLE IN THE VICINITY OF THESE STORMS SHOULD MOVE INSIDE A SAFE STRUCTURE AND MONITOR THE LATEST WEATHER CONeDITIONS ON NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND T.V. STATIONS. FERRY
Special weather statement, Apr 19, 8:10 PM CDT, 4 hours 22 minutes before
MOZ007-ILZ009-200215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 809 PM CDT SUN APR 19 1992 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ADAMS COUNTY ILLINOIS HAS EXPIRED... THE THUNDERSTORM OVER SOUTHWEST ADAMS COUNTY HAS WEAKENED SOME AND THE THREAT OF SEVERE WEATHER HAS DIMINISHED. AT 800 PM CDT RADAR INDICATED THE THUNDERSTORM 10 MILES SOUTHEAST OF QUINCY ILLINOIS. IT CONTINUED TO MOVE NORTHEAST AT 20 TO 25 MPH. THE STORM WILL BE LOCATED NEAR GOLDEN IN NORTHEAST ADAMS COUNTY BY 900 PM CDT. OTHER THUNDERSTORMS WERE OVER NORTHEAST MISSOURI. THESE STORMS WERE ALSO MOVING NORTHEAST AT 25 MPH AND WILL BE CROSSING INTO WEST CENTRAL ILLINOIS BY 830 PM CDT. THE THUNDERSTORMS OVER WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI WILL PRODUCE BRIEF HEAVY RAINS AND SMALL HAIL. PEOPLE IN ADAMS COUNTY SHOULD CONTINUE TO MONITOR THE LATEST WEATHER CONDITIONS BY LISTENENING TO NOAA WEATHER RADIO OR LOCAL RADIO AND T.V. STATIONS. FERRY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:10 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 41 min |
| Apr 20, 12:32 AM CDT | Flash Flood Warning | LSX | Dent, Reynolds | 6 hr |
| Apr 20, 2:49 AM CDT | Flash Flood Warning | LSX | Madison | 5 hr |
| Apr 20, 3:54 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 51 min |
Nearby
Flash Flood Warnings in Missouri, 1992Every flash flood warning in 1992
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.