Alert archive / Missouri / Flash Flood Warnings in 2000
Flash Flood Warning 3, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 7, 2000, 4:49 AM CDT for Jefferson County, Missouri. 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
- May 7, 2000, 4:49 AM CDT (09:49 UTC)
- Expired
- May 7, 2000, 9:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Jefferson County, MO
The radar
The St Louis radar (KLSX), 50 km from the middle of the area, began a volume at 10:08 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, 9.8 hours before the alert went out and 268 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
- 178 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 1032 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 070948 FFWLSX MOC099-071400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 449 AM CDT SUN MAY 7 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... JEFFERSON COUNTY IN EAST CENTRAL MISSOURI * UNTIL 900 AM CDT * AT 430 AM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A COMPLEX OF THUNDERSTORMS WHICH HAS DUMPED COPIOUS RAINFALL ONTO FRANKLIN COUNTY HAS EDGED FURTHER SOUTHEAST INTO JEFFERSON COUNTY. THESE STORMS ARE SHOWING LITTLE MOVEMENT...SAGGING SLOWLY SOUTHEAST. HEAVIEST RAINS WILL FALL FROM HOUSE SPRINGS TO DITTMER BUT WILL CONTINUE TO OVERSPREAD THE REST OF THE COUNTY BETWEEN NOW AND 6AM. * LOW WATER BRIDGES AND SECONDARY ROADS WILL FLOOD FIRST...CREEKS WILL RISE VERY RAPIDLY. COMMUNITIES AND RURAL AREAS ALONG THE BIG RIVER IN JEFFERSON COUNTY WILL BE VULNERABLE TO FLASH FLOODING. THIS STORM COMPLEX IS CAPABLE OF PRODUCING SEVERAL INCHES OF RAIN BEFORE MORNING. SOME AREAS OF FRANKLIN COUNTY HAVE RECEIVED 3 TO 10 INCHES OF RAIN AND IT IS STILL RAINING. THIS IS AN EXTREMELY DANGEROUS SITUATION. IF YOU ARE IN A LOW AREA OR HAVE FRIENDS OR FAMILY THAT DO...CALL THEM AND WAKE THEM UP TO MAKE SURE THEY ARE AWARE OF THE DANGER AND CAN TAKE ACTION FOR SAFETY. IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COXVERS THE ROAD... ESPECIALLY LOW-WATER BRIDGES PEDIGO/BRITT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 12:53 AM CDT | Flash Flood Warning | LSX | Franklin, Gasconade | 5 hr |
| May 7, 2:05 AM CDT | Severe Thunderstorm Warning | LSX | Franklin | 55 min |
| May 7, 2:23 AM CDT | Flash Flood Warning | LSX | Saint Charles, Saint Louis | 5 hr |
| May 7, 4:22 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Washington | 38 min |
| May 7, 6:32 AM CDT | Flash Flood Warning | LSX | Franklin, Saint Charles, Saint Louis | 2 hr |
Nearby
Flash Flood Warnings in Missouri, 2000Every flash flood warning in 2000
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.