Alert archive / Illinois / Flash Flood Warnings in 2008
Flash Flood Warning 49, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Sep 11, 2008, 2:24 PM CDT for 8 counties in Illinois. It was in force for 3 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 11, 2008, 2:24 PM CDT (19:24 UTC)
- Expired
- Sep 11, 2008, 5:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cass County, IL, Logan County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Sangamon County, IL, Tazewell County, IL
The radar
The Lincoln radar (KILX), 16 km from the middle of the area, began a volume at 19:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 11, 2:50 PM CDT | HEAVY RAIN 2.99 | 3 S Greenview, IL | |
| Sep 11, 2:55 PM CDT | HEAVY RAIN 3.02 | Petersburg, IL | |
| Sep 11, 3:00 PM CDT | FLASH FLOOD | 3 Ssw Petersburg, IL | RT. 97 NEAR NEAR NEW SALEM ST. PARK WAS CLOSED FOR A FEW HOURS THIS AFTERNOON DUE TO HIGH WATER FROM HEAVY RAIN. |
| Sep 11, 3:00 PM CDT | FLASH FLOOD | Ashland, IL | STORM SEWERS OVERFLOWING FROM HEAVY RAIN. SOME ROADS UNDER WATER AND CLOSED. |
| Sep 11, 3:00 PM CDT | HEAVY RAIN 2.96 | 3 Ssw Petersburg, IL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 7.4 hours before the alert went out and 68 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1345 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KILX 111924
FFWILX
ILC017-107-113-125-129-137-167-179-112215-
/O.NEW.KILX.FF.W.0049.080911T1924Z-080911T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
224 PM CDT THU SEP 11 2008
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN MORGAN COUNTY IN WEST CENTRAL ILLINOIS...
NORTHWESTERN SANGAMON COUNTY IN CENTRAL ILLINOIS...
SOUTHEASTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...
MENARD COUNTY IN CENTRAL ILLINOIS...
NORTHERN LOGAN COUNTY IN CENTRAL ILLINOIS...
SOUTHEASTERN MASON COUNTY IN CENTRAL ILLINOIS...
SOUTHEASTERN TAZEWELL COUNTY IN CENTRAL ILLINOIS...
SOUTHWESTERN MCLEAN COUNTY IN CENTRAL ILLINOIS...
* UNTIL 515 PM CDT.
* AT 214 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING
FROM A THUNDERSTORM OVER THE WARNED AREA. DOPPLER RADAR HAS
ESTIMATED FROM 1 TO 3 INCHES OF RAIN SINCE 10 AM.
THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL CONTINUE ACROSS THESE
AREAS. RAINFALL AMOUNTS WILL LIKELY RANGE FROM 2 TO 4 INCHES BY 5 PM.
THESE RAINFALL AMOUNTS WILL LIKELY PRODUCE FLASH FLOODING.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BLOOMINGTON...
JACKSONVILLE...LINCOLN...MASON CITY...VIRGINIA...ARENZVILLE...
ARMINGTON...ASHLAND...ATHENS...ATLANTA...CARLOCK AND CHANDLERVILLE.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
REPORT FLASH FLOODING TO YOUR LOCAL EMERGENCY MANAGER...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE.
LAT...LON 4059 8925 4058 8902 4045 8883 4029 8904
4029 8916 4025 8916 3964 9020 3991 9047
$$
HJS2 follow-up statements
000
WGUS73 KILX 112100
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
400 PM CDT THU SEP 11 2008
ILC017-107-113-125-129-137-167-179-112215-
/O.CON.KILX.FF.W.0049.000000T0000Z-080911T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CASS-LOGAN-MASON-MCLEAN-MENARD-MORGAN-SANGAMON-TAZEWELL-
400 PM CDT THU SEP 11 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHWESTERN MCLEAN...SOUTHEASTERN TAZEWELL...SOUTHEASTERN MASON...
NORTHERN LOGAN...MENARD...SOUTHEASTERN CASS...NORTHWESTERN SANGAMON
AND NORTHEASTERN MORGAN COUNTIES...
AT 351 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SERIES OF SHOWERS
AND ISOLATED THUNDERSTORMS HAD DROPPED ONE TO THREE INCHES OF
RAIN...RESULTING IN SOME ISOLATED FLOODING OVER THE WARNED AREA.
LOCATIONS IN THE WARNING INCLUDE... HARTSBURG...STANFORD...SAN
JOSE...NORMAL...MINIER...MCLEAN...MACKINAW...HOPEDALE...EMDEN...
DELAVAN...DANVERS...CARLOCK...BLOOMINGTON...ATLANTA AND ARMINGTON
ADDITIONAL RAINFALL AMOUNTS OF UP TO AN INCH ARE POSSIBLE IN
THE WARNED AREA THROUGH 5 PM.
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS WATER COVERED BRIDGES...DIPS...OR LOW WATER CROSSINGS. NEVER
TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE
RISING WATER MOVE TO HIGHER GROUND.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4059 8925 4058 8902 4045 8883 4029 8904
4029 8916 4025 8916 3964 9020 3991 9047
$$
HJS000
WGUS73 KILX 112212
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
512 PM CDT THU SEP 11 2008
ILC017-107-113-125-129-137-167-179-112219-
/O.EXP.KILX.FF.W.0049.000000T0000Z-080911T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CASS-LOGAN-MASON-MCLEAN-MENARD-MORGAN-SANGAMON-TAZEWELL-
512 PM CDT THU SEP 11 2008
...THE FLASH FLOOD WARNING WILL EXPIRE AT 515 PM CDT FOR SOUTHWESTERN
MCLEAN...SOUTHEASTERN TAZEWELL...SOUTHEASTERN MASON...NORTHERN
LOGAN...MENARD...SOUTHEASTERN CASS...NORTHWESTERN SANGAMON AND
NORTHEASTERN MORGAN COUNTIES...
THE LARGE AREA OF MODERATE TO LOCALLY HEAVY RAINFALL WHICH OCCURRED
ACROSS PARTS OF CENTRAL ILLINOIS THIS AFTERNOON HAS SHIFTED OUT
OF THE AREA. HOWEVER...SCATTERED SHOWERS WILL CONTINUE THIS
EVENING...BUT THE THREAT FOR FLASH FLOODING HAS ENDED FOR THE TIME
BEING.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
LAT...LON 4059 8925 4058 8902 4045 8883 4029 8904
4029 8916 4025 8916 3964 9020 3991 9047
$$
SMITHThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 5:18 PM CDT | Areal Flood Warning | ILX | Cass, Menard, Morgan, Sangamon | 6 hr |
Nearby
Flash Flood Warnings in Illinois, 2008Every flash flood warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.