Alert archive / Missouri / Flash Flood Warnings in 2002
Flash Flood Warning 28, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 18, 2002, 8:49 AM CDT for Boone County, Callaway County, Missouri. 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
- Aug 18, 2002, 8:49 AM CDT (13:49 UTC)
- Expired
- Aug 18, 2002, 11:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Boone County, MO, Callaway County, MO
The radar
The St Louis radar (KLSX), 127 km from the middle of the area, began a volume at 13:49 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 12:00Z, 1.8 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
- 1679 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 181349 FFWSTL MOC019-027-181630- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 850 AM CDT SUN AUG 18 2002 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... BOONE COUNTY IN CENTRAL MISSOURI CALLAWAY COUNTY IN CENTRAL MISSOURI * UNTIL 1130 AM CDT * AT 845 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ALONG A LINE EXTENDING FROM 10 MILES WEST OF COLUMBIA THROUGH COLUMBIA TO 10 MILES SOUTHEAST OF FULTON. RADAR ESTIMATES THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS ALREADY FALLEN IN THE LAST THREE HOURS IN THESE AREAS. ANOTHER 1 TO 2 INCHES WILL OCCUR BEFORE THE RAIN DIMINISHES LATER THIS MORNING. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE AFFECTING AREAS IN AND AROUND THE CITIES OF MIDWAY...COLUMBIA... ASHLAND...MILLERSBURG...NEW BLOOMFIELD...AND PORTLAND. IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:58 AM CDT | Severe Thunderstorm Warning | LSX | 47 min | |
| Aug 18, 10:12 AM CDT | Flash Flood Warning | LSX | Crawford, Gasconade, Osage | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 2002Every flash flood warning in 2002
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.