Alert archive / Missouri / Flash Flood Warnings in 1996
Flash Flood Warning 20, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 5, 1996, 2:43 PM CDT for Sainte Genevieve County, Missouri; Randolph County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 5, 1996, 2:43 PM CDT (19:43 UTC)
- Expired
- May 5, 1996, 5:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
The radar
The St Louis radar (KLSX), 100 km from the middle of the area, began a volume at 19:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 271 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
- 507 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 268 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 051944 FFWSTL ILC157-MOC186-052245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 243 PM CDT SUN MAY 5 1996 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...SOUTHERN RANDOLPH COUNTY IN EAST CENTRAL MISSOURI ...EASTERN ST. GENEVIEVE COUNTY STRONG THUNDERSTORMS HAVE MOVED ACROSS STE. GENEVIEVE COUNTY MISSOURI AND RANDOLPH COUNTY IN ILLINOIS THIS AFTERNOON. SINCE 130 PM...SOME AREAS IN EASTERN STE. GENEVIEVE COUNTY AND SOUTHWEST RANDOLPH COUNTY HAVE RECEIVED 2 TO 3 INCHES OF RAIN. PREVIOUS RAINS HAVE SATURATED THE GROUND...THEREFORE THIS ADDITIONAL RAINFALL IS EXPECTED TO PRODUCE FLASH FLOODING. IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD...ESPECIALLY LOW-WATER BRIDGES. F AMS
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, May 5, 1:51 PM CDT, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 145 PM CDT SUN MAY 5 1991 ...OLD WARNINGS BEING TRANSMITTED ON WEATHER WIRE... A GLITCH IN THE NOAA WEATHER WIRE SERVICE HAS APPARENTLY CAUSED SOME OLD WARNINGS FROM MAY 3 1996 TO BE RE-ISSUED ON THE CIRCUIT. THERE ARE CURRENTLY NO WEATHER WARNINGS IN EFFECT FOR ANY ILLINOIS COUNTIES IN THE ST. LOUIS AREA. WE REGRET ANY CONFUSION THIS MAY HAVE CAUSED. JPK
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 8:22 AM CDT | Severe Thunderstorm Warning | LSX | Moniteau | 68 min |
| May 5, 8:52 AM CDT | Severe Thunderstorm Warning | LSX | Cole | 53 min |
| May 5, 11:41 AM CDT | Severe Thunderstorm Warning | LSX | Crawford | 49 min |
| May 5, 11:59 AM CDT | Severe Thunderstorm Warning | LSX | Iron, Washington | 61 min |
| May 5, 11:59 AM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 61 min |
| May 5, 12:39 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois | 51 min |
| May 5, 12:52 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 38 min |
| May 5, 2:15 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 45 min |
| May 5, 2:42 AM CDT | Severe Thunderstorm Warning | LSX | Bond | 48 min |
| May 5, 3:02 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 28 min |
| May 5, 3:29 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 31 min |
Nearby
Flash Flood Warnings in Missouri, 1996Flash Flood Warnings in Illinois, 1996Every flash flood warning in 1996
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; radar from the NEXRAD Level II archive.