Alert archive / Illinois / Flash Flood Warnings in 2000
Flash Flood Warning 17, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 24, 2000, 12:27 AM CDT for 5 counties in Illinois. It was in force for 6 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 24, 2000, 12:27 AM CDT (05:27 UTC)
- Expired
- Aug 24, 2000, 6:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Bond County, IL, Fayette County, IL, Macoupin County, IL, Marion County, IL, Montgomery County, IL
The radar
The St Louis radar (KLSX), 120 km from the middle of the area, began a volume at 05:28 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, 5.5 hours before the alert went out and 143 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
- 1082 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1541 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 240530 FFWLSX ILC005-051-117-121-135-241130- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1227 AM CDT THU AUG 24 2000 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... MACOUPIN COUNTY IN CENTRAL ILLINOIS MONTGOMERY COUNTY IN CENTRAL ILLINOIS BOND COUNTY IN SOUTH CENTRAL ILLINOIS FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS MARION COUNTY IN SOUTH CENTRAL ILLINOIS * UNTIL 630 AM CDT * AT 1227 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS HAD BEEN PRODUCING VERY HEAVY RAIN ALONG A CARLINVILLE...SALEM LINE SINCE LATE WEDNESDAY EVENING. THIS IS THE SAME AREA THAT HAS RECEIVED SEVERAL ROUNDS OF HEAVY RAIN OVER THE PAST 2 DAYS. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA THROUGHOUT THE NIGHT...AS ADDITIONAL THUNDERSTORMS WILL CONTINUE TO PRODUCE MODERATE AND HEAVY RAIN. IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. TRUETT/PEDIGO
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 8:25 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 50 min |
| Aug 23, 8:44 PM CDT | Tornado Warning | LSX | Montgomery | 46 min |
| Aug 23, 9:29 PM CDT | Tornado Warning | LSX | Montgomery | 31 min |
| Aug 23, 9:43 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 62 min |
| Aug 23, 10:19 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 56 min |
| Aug 23, 10:58 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 47 min |
| Aug 23, 11:16 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 59 min |
| Aug 23, 11:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 54 min |
| Aug 23, 11:28 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 62 min |
| Aug 23, 11:51 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 39 min |
| Aug 24, 12:09 AM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 66 min |
| Aug 24, 12:11 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 49 min |
Nearby
Flash Flood Warnings in Illinois, 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.