Alert archive / Illinois / Flash Flood Warnings in 1996
Flash Flood Warning 11, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Apr 28, 1996, 7:03 PM CDT for Clinton County, Madison County, Saint Clair County, Illinois. It was in force for 4 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
- Apr 28, 1996, 7:03 PM CDT (00:03 UTC)
- Expired
- Apr 28, 1996, 11:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Clinton County, IL, Madison County, IL, Saint Clair County, IL
The radar
The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 00:06 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 00:00Z, 0.1 hours before the alert went out and 195 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 477 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 404 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 KSTL 290004 FFWSTL ILC027-119-163-290400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 703 PM CDT SUN APR 28 1996 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ILLINOIS ...CLINTON COUNTY IN SOUTHWEST ILLINOIS ...MADISON COUNTY...ST. CLAIR COUNTY AT 7 PM...NATIONAL WEATHER SERVICE RADAR WAS DETECTING NUMEROUS THUNDERSTORMS CONTAINING HEAVY RAINS MOVING EAST NORTHEASTWARD THROUGH THE ST LOUIS METRO AREA INTO THE COUNTIES OF MADISON...ST CLAIR AND CLINTON COUNTIES. WITH ALREADY SATURATED GROUNDS AND PONDING OF WATER...THIS ADDITIONAL HEAVY RAINS WILL PRODUCE FLOODING OF SMALL STREAMS AND LOW LYING AREAS. WATER WAS ALREADY COVERING PARTS OF US 50 NEAR LEBANON ILLINOIS. RADAR WAS ESTIMATING AROUND AN INCH OF RAIN HAS FALLEN DURING THE LAST HOUR. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. NEVER DRIVE OR WALK INTO FLOOD WATER. FLASH FLOODING IS THE LEADING WEATHER RELATED KILLER ACROSS THE UNITED STATES. NEVER UNDERESTIMATE THE POWER OF FLOWING WATER. MOVE TO HIGLHER GROUND IMMEDIATELY WHEN FLOODING THREATENS. YOUR LIFE MAY DEPEND ON IT. GKS &
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 8:20 PM CDT | Flash Flood Warning | LSX | Monroe | 3 hr |
| Apr 28, 10:55 PM CDT | Flash Flood Warning | LSX | Clinton, Madison, Monroe, Saint Clair, Washington | 4 hr |
| Apr 29, 3:01 AM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair | 3 hr |
| Apr 29, 3:01 AM CDT | Flash Flood Warning | LSX | Clinton, Madison | 3 hr |
| Apr 29, 3:01 AM CDT | Flash Flood Warning | LSX | Washington | 3 hr |
Nearby
Flash 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.