Alert archive / Illinois / Flash Flood Warnings in 2012
Flash Flood Warning 13, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Aug 5, 2012, 1:09 AM CDT for Jackson County, Williamson County, Illinois. It was in force for 75 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 5, 2012, 1:09 AM CDT (06:09 UTC)
- Expired
- Aug 5, 2012, 2:24 AM CDT
- In force
- 75 min
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Jackson County, IL, Williamson County, IL
The radar
The Paducah radar (KPAH), 85 km from the middle of the area, began a volume at 06:11 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, 6.2 hours before the alert went out and 271 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
- 857 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1700 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
632 WGUS53 KPAH 050609 FFWPAH ILC077-199-050900- /O.NEW.KPAH.FF.W.0013.120805T0609Z-120805T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PADUCAH KY 109 AM CDT SUN AUG 5 2012 THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A * FLASH FLOOD WARNING FOR... JACKSON COUNTY IN SOUTHERN ILLINOIS... WILLIAMSON COUNTY IN SOUTHERN ILLINOIS... * UNTIL 400 AM CDT. * AT 102 AM CDT...THE PUBLIC REPORTED SOME ROADS BEGINNING TO FLOOD WITHIN THE WARNED AREA...ESPECIALLY IN MURPHYSBORO AND CARBONDALE. DOPPLER RADAR AND SURFACE REPORTS INDICATE OVER 2 INCHES OF RAIN HAS FALLEN IN THE PAST HOUR OR SO...AND AND ANOTHER QUICK INCH OR TWO SO IS LIKELY TO FALL WITHIN THE NEXT HOUR AS THUNDERSTORMS WITH TORRENTIAL RAIN TRAIN OVER THE SAME LOCATIONS. * LOCATIONS IN THE WARNED AREA INCLUDE... MURPHYSBORO...CARTERVILLE...HERRIN...JOHNSTON CITY...DE SOTO... CAMBRIA...HURST...ENERGY AND PITTSBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS. && LAT...LON 3786 8953 3786 8872 3760 8874 3760 8946 $$
1 follow-up statement
175 WGUS73 KPAH 050724 FFSPAH FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PADUCAH KY 224 AM CDT SUN AUG 5 2012 ILC077-199-050733- /O.CAN.KPAH.FF.W.0013.000000T0000Z-120805T0900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ JACKSON IL-WILLIAMSON IL- 224 AM CDT SUN AUG 5 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WILLIAMSON AND SOUTHERN JACKSON COUNTIES IN SOUTHERN ILLINOIS... MOST OF THE HEAVY RAINS HAVE NOW MOVED OUT OF THE WARNED AREA AND NO REPORTS OF SIGNIFICANT FLOODING HAVE BEEN RECEIVED AT THIS TIME. LAT...LON 3786 8953 3786 8872 3760 8874 3760 8946 $$
Nearby
Flash Flood Warnings in Illinois, 2012Every flash flood warning in 2012
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.