Alert archive / Missouri / Flash Flood Warnings in 1998
Flash Flood Warning 21, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 4, 1998, 9:02 AM CDT for Callaway County, Cole County, Osage County, 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
- Jul 4, 1998, 9:02 AM CDT (14:02 UTC)
- Expired
- Jul 4, 1998, 2:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Callaway County, MO, Cole County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 117 km from the middle of the area, began a volume at 14:02 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, 2.0 hours before the alert went out and 245 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
- 1118 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1195 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 041403 FFWSTL MOC019-027-051-135-151-041900- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 902 AM CDT SAT JUL 4 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... BOONE COUNTY IN CENTRAL MISSOURI CALLAWAY COUNTY IN CENTRAL MISSOURI COLE COUNTY IN CENTRAL MISSOURI MONITEAU COUNTY IN CENTRAL MISSOURI OSAGE COUNTY IN CENTRAL MISSOURI * UNTIL 200 PM CDT * AT 855 AM CDT NATIONAL WEATHER SERVICE RADAR SHOWED ONE BAND OF HEAVY RAIN MOVING ACROSS CENTRAL MISSOURI AND ANOTHER MOVING SOUTHEAST INTO THE AREA FROM NORTH CENTRAL MISSOURI. UP TO 2 INCHES OF RAIN HAS ALREADY FALLEN AND ANOTHER INCH CAN BE EXPECTED. * LOCAL OFFICIALS IN COLUMBIA HAVE REPORTED NUMEROUS INTERSECTIONS UNDER WATER WITH DEPTHS RANGING IN PLACES FROM 2 TO 3 FEET DEEP. THE HEAVIEST RAIN HAS FALLEN ACROSS CENTRAL BOONE COUNTY...NORTH MONITEAU AND COLE COUNTIES...SOUTHEfAST CALLAWAY AND WESTERN OSAGE. 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 JPK &
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 11:40 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 65 min |
| Jul 4, 2:36 AM CDT | Flash Flood Warning | LSX | Marion, Monroe, Ralls, Shelby | 5 hr |
| Jul 4, 2:36 AM CDT | Flash Flood Warning | LSX | Pike | 5 hr |
| Jul 4, 2:36 AM CDT | Flash Flood Warning | LSX | Knox | 5 hr |
| Jul 4, 7:38 AM CDT | Flash Flood Warning | LSX | Audrain, Monroe | 3 hr |
| Jul 4, 7:38 AM CDT | Flash Flood Warning | LSX | Knox, Shelby | 3 hr |
| Jul 4, 7:38 AM CDT | Flash Flood Warning | LSX | Audrain, Monroe | 3 hr |
| Jul 4, 7:38 AM CDT | Flash Flood Warning | LSX | Knox, Shelby | 3 hr |
| Jul 4, 9:02 AM CDT | Flash Flood Warning | LSX | Boone, Moniteau | 5 hr |
| Jul 4, 11:04 AM CDT | Flash Flood Warning | LSX | Monroe, Shelby | 3 hr |
| Jul 4, 11:04 AM CDT | Flash Flood Warning | LSX | Audrain | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 1998Every flash flood warning in 1998
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.