Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 26, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 3, 1993, 10:50 AM CDT for Saint Charles County, Missouri. It was in force for 36 min.
The area
The counties it named.
The facts
- Issued
- Jul 3, 1993, 10:50 AM CDT (15:50 UTC)
- Expired
- Jul 3, 1993, 11:26 AM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Charles County, MO
The radar
The St Louis radar (KLSX), 9 km from the middle of the area, began a volume at 15:54 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
Paducah/Barkley, KY (KPAH), launched 12:00Z, 3.8 hours before the alert went out and 257 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
- 906 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 959 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 79 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 031553 FFWSTL MOC183-031945- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1050 AM CDT SAT JUL 3 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...NORTHERN ST CHARLES COUNTY ...A PRIVATE LEVEE NORTH OF SAALE ROAD IS SERIOUSLY SEEPING AND IS EXPECTED TO BREAK. THIS IS EXPECTED TO AFFECT THE TOWN OF WEST ALTON BETWEEN 1055 AND 1 PM. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. TUCKER/BURNS
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, Jul 3, 10:15 AM CDT, 35 minutes before
MOZ001-004-005-008-009-013-015-040000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1015 AM CDT SAT JUL 3 1993 ...GUSTY WINDS ARE EXPECTED OVER WESTERN MISSOURI TODAY... A DEVELOPING STORM IN THE NORTHERN PLAINS WILL CAUSE STRONG SOUTHERLY OVER WESTERN MISSOURI TODAY. SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED IN WEST CENTRAL AND NORTHWEST MISSOURI THIS AFTERNOON. A FEW GUSTS WILL APPROACH 40 MPH. THESE WINDS WILL MAKE FOR HAZARDOUS BOATING CONDITIONS ON AREA LAKES TODAY. PERSONS VENTURING OUT ON OPEN WATERS ARE URGED TO STAY CLOSE TO SHORE AS VERY ROUGH AND CHOPPY CONDITIONS ARE EXPECTED. TUCKER
Special weather statement, Jul 3, 10:23 AM CDT, 27 minutes before
MOZ001-004-005-008-009-013-015-040000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1015 AM CDT SAT JUL 3 1993 ...GUSTY WINDS ARE EXPECTED OVER WESTERN MISSOURI TODAY... A DEVELOPING STORM IN THE NORTHERN PLAINS WILL CAUSE STRONG SOUTHERLY OVER WESTERN MISSOURI TODAY. SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED IN WEST CENTRAL AND NORTHWEST MISSOURI THIS AFTERNOON. A FEW GUSTS WILL APPROACH 40 MPH. THESE WINDS WILL MAKE FLOR HAZARDOUS BOATING CONDITIONS ON AREA LAKES TODAY. PERSONS VENTURING OUT ON OPEN WATERS ARE URGED TO STAY CLOSE TO SHORE AS VERY ROUGH AND CHOPPY CONDITIONS ARE EXPECTED. TUCKER
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 9:16 PM CDT | Flash Flood Warning | LSX | Phelps | 119 min |
Nearby
Flash Flood Warnings in Missouri, 1993Every flash flood warning in 1993
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.