Alert archive / Missouri / Flash Flood Warnings in 1997
Flash Flood Warning 5, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 21, 1997, 11:45 PM CDT for 4 counties in Missouri. It was in force for 5 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
- Jun 21, 1997, 11:45 PM CDT (04:45 UTC)
- Expired
- Jun 22, 1997, 4:45 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Crawford County, MO, Franklin County, MO, Jefferson County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 65 km from the middle of the area, began a volume at 04:45 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
Springfield, MO (KSGF), launched 00:00Z, 4.8 hours before the alert went out and 287 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
- 2170 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1326 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 67 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 220451 FFWSTL ILC133-163-MOC055-071-099-221-220945- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1145 PM CDT SAT JUN 21 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 445 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...MONROE COUNTY...ST. CLAIR COUNTY IN EAST CENTRAL MISSOURI ...CRAWFORD COUNTY...FRANKLIN COUNTY...JEFFERSON COUNTY ...WASHINGTON COUNTY AT 1145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FELL ACROSS PORTIONS OF THESE AREAS. SOME FLOODING HAS BEEN REPORTED BY LAW ENFORCEMENT AGENCIES IN DESOTO. 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. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. NEVER DRIVE OR WALK INTO FLOOD WATER. &
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 7:39 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 51 min |
| Jun 21, 8:31 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 44 min |
| Jun 21, 10:22 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 68 min |
| Jun 22, 12:48 AM CDT | Flash Flood Warning | LSX | Warren | 4 hr |
| Jun 22, 1:15 AM CDT | Flash Flood Warning | LSX | Montgomery | 4 hr |
| Jun 22, 2:49 AM CDT | Flash Flood Warning | LSX | Callaway | 3 hr |
| Jun 22, 3:44 AM CDT | Flash Flood Warning | LSX | Audrain | 3 hr |
| Jun 22, 4:50 AM CDT | Flash Flood Warning | LSX | Audrain, Callaway, Monroe, Montgomery | 4 hr |
| Jun 22, 4:50 AM CDT | Flash Flood Warning | LSX | Crawford, Gasconade | 4 hr |
| Jun 22, 5:41 AM CDT | Flash Flood Warning | LSX | Boone | 3 hr |
| Jun 22, 7:05 AM CDT | Flash Flood Warning | LSX | Shelby | 4 hr |
| Jun 22, 7:36 AM CDT | Flash Flood Warning | LSX | Knox | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 1997Every flash flood warning in 1997
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.