Alert archive / Illinois / Flash Flood Warnings in 2004

Flash Flood Warning 13, NWS Paducah, KY

May 1, 2004Saline County, Illinois

NWS Paducah, KY issued this flash flood warning at May 1, 2004, 5:24 AM CDT for Saline County, Illinois. It was in force for 3 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: May 1, 2004, 5:24 AM CDT (10:24 UTC)
Expired: May 1, 2004, 8:00 AM CDT
In force: 3 hr
Issued by: NWS Paducah, KY
Area: Counties, with a storm outline in the text

County Saline County, IL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.4 hours before the alert went out and 254 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 708 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 807 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KPAH 011025
FFWPAH
ILC165-011300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
524 AM CDT SAT MAY 1 2004

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SALINE COUNTY IN SOUTHERN ILLINOIS

* UNTIL 800 AM CDT

* AT 522 AM CDT...DOPPLER RADAR ESTIMATED 1 TO 3 INCHES OF RAIN
  HAD FALLEN ACROSS NORTHERN SALINE COUNTY SINCE MIDNIGHT. SHOWERS
  AND THUNDERSTORMS CONTINUE TO AFFECT AREAS NORTH OF HARRISBURG.
  ADDITIONAL RAINS OF 1 INCH OR MORE ARE LIKELY EARLY THIS MORNING.

* LOCATIONS IMPACTED INCLUDE ELDORADO...GALATIA...HARRISBURG...MUDDY
  AND RALEIGH

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. NEVER ATTEMPT TO CROSS HIGH WATER IN A VEHICLE OR ON FOOT

LAT...LON 3791 8840 3770 8840 3769 8870 3790 8870

$$

1 follow-up statement

000 
WGUS73 KPAH 011301
FFSPAH
ILC065-165-011400-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
800 AM CDT SAT MAY 1 2004

...THE FLASH FLOOD WARNING FOR HAMILTON AND SALINE COUNTIES IN 
SOUTHERN ILLINOIS WILL BE ALLOWED TO EXPIRE...

THE RAIN DIMINISHED SIGNIFICANTLY ACROSS SOUTHERN ILLINOIS SINCE 700 
AM. THUS THE THREAT FOR FLASH FLOODING HAS ENDED.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 2:07 AM CDT	Flash Flood Warning	PAH	White	3 hr
May 1, 4:27 AM CDT	Flash Flood Warning	PAH	Hamilton	4 hr
May 1, 6:17 AM CDT	Severe Thunderstorm Warning	PAH	Johnson, Williamson	43 min
May 1, 6:39 AM CDT	Severe Thunderstorm Warning	PAH	Franklin, Hamilton	51 min

Nearby

Flash Flood Warnings in Illinois, 2004 Every flash flood warning in 2004

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.