Alert archive / Illinois / Flash Flood Warnings in 1998
Flash Flood Warning 8, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 29, 1998, 4:51 PM CDT for Adams County, Brown County, Illinois. 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
- Jun 29, 1998, 4:51 PM CDT (21:51 UTC)
- Expired
- Jun 29, 1998, 7:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Adams County, IL, Brown County, IL
The radar
The Lincoln radar (KILX), 140 km from the middle of the area, began a volume at 21:55 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
Davenport, (KDVN), launched 12:00Z, 9.9 hours before the alert went out and 187 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
- 917 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 292153 FFWSTL ILC001-009-MOC111-300045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 451 PM CDT MON JUN 29 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... ADAMS COUNTY IN WEST CENTRAL ILLINOIS BROWN COUNTY IN WEST CENTRAL ILLINOIS LEWIS COUNTY IN NORTHEASTERN MISSOURI * UNTIL 745 PM CDT * A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM 40 MILES EAST OF QUNICY ILLINOIS TO 10 MILES 5 MILES WEST OF MEMPHIS. THE LINE OF STRONG TO SEVERE THUNDERSTORMS WILL PRODUCE FLASH FLOODING ON ALREADY STAURATED GROUNDS. * PEOPLE IN THE COMMUNITIES OF MONTICELLO...QUNICY...CAMP POINT AND MT STERLING SHOULD BE ALERT FOR FLASH FLOODING. DO NOT DRIVE INTO RAPIDLY FLOWING WATER. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW-WATER CROSSINGS IF WATER COVERS THE ROAD. DO NOT DRIVE AROUND BARRICADES. IF YOU>R VEHICLE STALLS ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. RAPIDLY RISING WATER MAY SWEEP THE VEHICLE AND ITS OCCUPANTS AWAY. RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:51 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 34 min |
| Jun 28, 8:59 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 36 min |
| Jun 29, 12:05 AM CDT | Flash Flood Warning | LSX | Adams | 4 hr |
| Jun 29, 12:05 AM CDT | Flash Flood Warning | LSX | Brown | 4 hr |
| Jun 29, 4:30 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 65 min |
| Jun 29, 5:04 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 61 min |
| Jun 29, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 63 min |
| Jun 29, 6:19 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 46 min |
| Jun 29, 6:29 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 61 min |
Nearby
Flash Flood Warnings in Illinois, 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.