Alert archive / Illinois / Flash Flood Warnings in 2011
Flash Flood Warning 42, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jun 19, 2011, 7:16 AM CDT for Sangamon County, Illinois. It was in force for 7 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
- Jun 19, 2011, 7:16 AM CDT (12:16 UTC)
- Expired
- Jun 19, 2011, 2:30 PM CDT
- In force
- 7 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
County Sangamon County, IL
The radar
The Lincoln radar (KILX), 43 km from the middle of the area, began a volume at 12:17 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 12:00Z, 0.3 hours before the alert went out and 91 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
- 919 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 497 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
016
WGUS53 KILX 191216
FFWILX
ILC167-191930-
/O.NEW.KILX.FF.W.0042.110619T1216Z-110619T1930Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
716 AM CDT SUN JUN 19 2011
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* FLASH FLOOD WARNING FOR A DAM FLOODGATE RELEASE...
CENTRAL SANGAMON COUNTY IN CENTRAL ILLINOIS...
* UNTIL 230 PM CDT SUNDAY
* AT 715 AM CDT...DUE TO HEAVY RAINFALL FRIDAY NIGHT...WATER IS
BEING RELEASED FROM SPAULDING DAM AT LAKE SPRINGFIELD. THIS WILL
RESULT IN RAPID RISES ON SUGAR CREEK...DOWNSTREAM OF THE DAM.
RAPID FLOODING OF LOW LYING AREAS ALONG THE CREEK WILL RESULT.
* LOCATIONS IMPACTED INCLUDE AREAS DOWNSTREAM OF SPAULDING DAM ON
SUGAR GREEK...INCLUDING CLEAR LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ALL PERSONS IN FLOOD PRONE AREAS OF LOWER SUGAR CREEK AND SANGAMON
RIVER BASINS SHOULD BE ADVISED THAT HIGH RIVER STAGES ARE LIKELY AND
EMERGENCY EVACUATION OF ALL AFFECTED AREAS IS STRONGLY RECOMMENDED.
FOLLOW THE ADVISE OF PUBLIC SAFETY OFFICIALS.
LAT...LON 3985 8955 3982 8953 3980 8953 3979 8957
3976 8959 3976 8961 3980 8960
$$
AUTEN1 follow-up statement
045
WGUS73 KILX 191926
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
226 PM CDT SUN JUN 19 2011
ILC167-191935-
/O.EXP.KILX.FF.W.0042.000000T0000Z-110619T1930Z/
/00000.0.DR.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANGAMON-
226 PM CDT SUN JUN 19 2011
...THE FLASH FLOOD WARNING FOR A DAM FLOODGATE RELEASE OF WILL EXPIRE
AT 230 PM CDT FOR CENTRAL SANGAMON COUNTY...
WATER BEING RELEASED FROM THE SPAULDING DAM ON LAKE SPRINGFIELD HAS
BEEN REDUCED AND THE THREAT DOWNSTREAM HAS DIMINISHED.
LAT...LON 3985 8955 3982 8953 3980 8953 3979 8957
3976 8959 3976 8961 3980 8960
$$
HJSThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:25 PM CDT | Flash Flood Warning | ILX | Sangamon | 12 hr |
| Jun 18, 10:33 PM CDT | Areal Flood Warning | ILX | Morgan, Sangamon | 6 hr |
| Jun 19, 1:09 AM CDT | Special Weather Statement | ILX | Morgan, Scott | 66 min |
| Jun 19, 4:34 AM CDT | Flash Flood Warning | ILX | Effingham, Shelby | 9 hr |
| Jun 19, 4:35 AM CDT | Areal Flood Warning | ILX | Morgan, Sangamon | 14 hr |
| Jun 19, 5:24 AM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 36 min |
| Jun 19, 9:16 AM CDT | Flash Flood Warning | ILX | Scott | 12 hr |
| Jun 19, 9:53 AM CDT | Areal Flood Advisory | ILX | Cass, Morgan | 6 hr |
| Jun 19, 10:29 AM CDT | River Flood Warning | ILX | Lawrence | 69 hr |
| Jun 19, 2:29 PM CDT | Flash Flood Watch | ILX | Sangamon | 15 hr |
| Jun 19, 6:34 PM CDT | Areal Flood Warning | ILX | Morgan | 12 hr |
Nearby
Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011
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.