Alert archive / Illinois / Flash Flood Warnings in 2002
Flash Flood Warning 79, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jul 27, 2002, 12:54 AM CDT for Logan County, Sangamon County, 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 outline as issued.
The facts
- Issued
- Jul 27, 2002, 12:54 AM CDT (05:54 UTC)
- Expired
- Jul 27, 2002, 6:45 AM CDT
- In force
- 6 hr
- Issued by
- NWS Lincoln, IL
- Area
- Counties, with a storm outline in the text
Counties Logan County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 28 km from the middle of the area, began a volume at 05:55 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
Lincoln, IL (KILX), launched 00:00Z, 5.9 hours before the alert went out and 73 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
- 798 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1399 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KILX 270554
FFWSPI
ILC107-167-271145-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1251 AM CDT SAT JUL 27 2002
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SANGAMON COUNTY IN CENTRAL ILLINOIS
LOGAN COUNTY IN CENTRAL ILLINOIS
* UNTIL 645 AM CDT
* AT 1246 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED VERY HEAVY RAIN HAS FALLEN OVER SOUTHERN LOGAN AND
EASTERN SANGAMON COUNTIES. RAINFALL IN EXCESS OF 3 INCHES HAS
BEEN ESTIMATED SINCE 10 PM.
* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS
THE SAME AREAS. RAINFALL AMOUNTS WILL LIKELY RANGE FROM ONE TO
TWO INCHES AND HOUR FOR THE NEXT TWO HOURS. THESE RAINFALL AMOUNTS
WILL LIKELY PRODUCE FLASH FLOODING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF IN A FLOOD PRONE AREA...MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG CREEKS AND STREAMS ARE ESPECIALLY VULNERABLE
TO THE EFFECTS OF FLASH FLOODING. DO NOT ATTEMPT TO CROSS FLOODED
AREAS BY FOOT OR AUTOMOBILE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW
MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS.
REPORT FLASH FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY
TUNED FOR LATER STATEMENTS.
LAT...LON 4004 8959 3975 8956 3977 8930 3982 8923
4003 8915
AUTEN
NNNNThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 9:43 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 62 min |
| Jul 26, 11:03 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Sangamon | 57 min |
| Jul 26, 11:20 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 40 min |
| Jul 26, 11:38 PM CDT | Severe Thunderstorm Warning | ILX | Logan | 52 min |
| Jul 27, 3:42 AM CDT | Flash Flood Warning | ILX | Knox | 4 hr |
| Jul 27, 3:45 AM CDT | Flash Flood Warning | ILX | Knox | 4 hr |
Nearby
Flash Flood Warnings in Illinois, 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.