Alert archive / Illinois / Flash Flood Warnings in 2022

Flash Flood Warning 21, NWS Paducah, KY

July 27, 2022Hamilton County, Saline County, White County, Illinois

NWS Paducah, KY issued this flash flood warning at Jul 27, 2022, 7:16 AM CDT for Hamilton County, Saline County, White County, Illinois. It was in force for 73 min. 3 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
Jul 27, 2022, 7:16 AM CDT (12:16 UTC)
Expired
Jul 27, 2022, 8:29 AM CDT
In force
73 min
Issued by
NWS Paducah, KY
Area
Storm-based polygon
Flood severity
None

Counties Hamilton County, IL, Saline County, IL, White County, IL

The radar

The Evansville,IN radar (KVWX), 45 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.

What was reported inside it

TimeReportWhereRemark
Jul 27, 7:30 AM CDTFLOOD1 Wnw Broughton, ILSTATE ROUTE 142 HAD A FEW INCHES OF WATER OVER THE ROAD IN THE TOWN OF BROUGHTON.
Jul 27, 8:00 AM CDTFLOODCarmi, ILSEVERAL INCHES OF WATER OVER NUMEROUS ROADS WITHIN THE COUNTY INCLUDING PORTIONS OF HIGHWAYS 1, 14, AND 45.
Jul 27, 8:00 AM CDTFLASH FLOODBroughton, ILSEVERAL ROADS IN THE BROUGHTON AREA WITH WATER OVER THEM. HWY 142 HAD WATER AT LEAST A FOOT DEEP OVER IT.

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, 0.3 hours before the alert went out and 238 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2022-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 396 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2022-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
396 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

933 
WGUS53 KPAH 271216
FFWPAH
ILC065-165-193-271515-
/O.NEW.KPAH.FF.W.0021.220727T1216Z-220727T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Paducah KY
716 AM CDT Wed Jul 27 2022

The National Weather Service in Paducah has issued a

* Flash Flood Warning for...
  Southern Hamilton County in south central Illinois...
  White County in southeastern Illinois...
  Northern Saline County in southern Illinois...

* Until 1015 AM CDT.

* At 716 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Carmi, Grayville, Norris City, Galatia, Crossville, Enfield, 
  Broughton, Maunie and Phillipstown.

This includes the following highways...
	Interstate 64 in Illinois between Mile Markers 129 and 130.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3799 8870 3825 8798 3820 8798 3816 8793
      3817 8791 3813 8795 3810 8802 3808 8801
      3809 8797 3806 8798 3805 8804 3803 8804
      3803 8801 3801 8803 3797 8801 3795 8804
      3791 8837 3789 8837 3782 8858 3785 8871

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

DWS
1 follow-up statement
966 
WGUS73 KPAH 271329
FFSPAH

Flash Flood Statement
National Weather Service Paducah KY
829 AM CDT Wed Jul 27 2022

ILC065-165-193-271339-
/O.CAN.KPAH.FF.W.0021.000000T0000Z-220727T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hamilton IL-Saline IL-White IL-
829 AM CDT Wed Jul 27 2022

...FLASH FLOOD WARNING FOR SOUTHERN HAMILTON, WHITE AND NORTHERN 
SALINE COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

LAT...LON 3799 8870 3825 8798 3820 8798 3816 8793
      3817 8791 3813 8795 3810 8802 3808 8801
      3809 8797 3806 8798 3805 8804 3803 8804
      3803 8801 3801 8803 3797 8801 3795 8804
      3791 8837 3789 8837 3782 8858 3785 8871

$$

SP

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 27, 2:26 AM CDTHeat AdvisoryPAHAlexander, Massac, Pulaski18 hr
Jul 27, 6:31 AM CDTAreal Flood AdvisoryPAHEdwards, Wabash, Wayne3 hr
Jul 27, 6:47 AM CDTSpecial Weather StatementPAHWabash43 min
Jul 27, 6:58 AM CDTSevere Thunderstorm WarningPAHWhite20 min
Jul 27, 8:29 AM CDTAreal Flood WarningPAHHamilton, Saline, White106 min

Nearby

Flash Flood Warnings in Illinois, 2022Every flash flood warning in 2022

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.