Alert archive / Illinois / Flash Flood Warnings in 1995

Flash Flood Warning 21, NWS Indianapolis, IN

May 18, 1995Gallatin County, Illinois

NWS Indianapolis, IN issued this flash flood warning at May 18, 1995, 2:15 AM CDT for Gallatin County, Illinois. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: May 18, 1995, 2:15 AM CDT (07:15 UTC)
Expired: May 18, 1995, 6:15 AM CDT
In force: 4 hr
Issued by: NWS Indianapolis, IN
Area: Whole counties

County Gallatin County, IL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.3 hours before the alert went out and 232 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: 916 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEVV 180717
FFWEVV
ILC047-059-101-159-185-193-INC027-037-051-083-123-125-129-163-173-
181115-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
215 AM CDT (215 AM EST) THU MAY 18 1995
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  615 AM CDT (615 AM EST)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST ILLINOIS
 
   ...EDWARDS COUNTY...GALLATIN COUNTY...LAWRENCE COUNTY
   ...RICHLAND COUNTY...WABASH COUNTY...WHITE COUNTY
 
 
IN SOUTHWEST INDIANA
 
   ...DAVIESS COUNTY...DUBOIS COUNTY...GIBSON COUNTY...KNOX COUNTY
   ...PERRY COUNTY...PIKE COUNTY...POSEY COUNTY...VANDERBURGH COUNTY
   ...WARRICK COUNTY
 
AT 210 AM CDT...HEAVY RAIN CONTINUES TO FALL ACROSS SOUTHEAST
ILLINOIS...SOUTHWEST INDIANA AND NORTHWEST KENTUCKY RESULTING IN
WIDESPREAD FLOODING. MORE RAIN IS EXPECTED TO FALL THROUGHOUT TONIGHT
AND THIS MORNING. IF YOU LIVE IN A FLOOD PRONE AREA AND KEEP A LOOKOUT
FOR QUICKLY RISING WATER AND BE PREPARED TO MOVE TO HIGHER GROUND!
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOV8E UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
SLEIGHTER
 
 
&

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 12:40 AM CDT	Severe Thunderstorm Warning	IND	Wayne, White	35 min
May 18, 2:15 AM CDT	Flash Flood Warning	IND	Wabash, White	4 hr
May 18, 2:15 AM CDT	Flash Flood Warning	IND	Lawrence, Richland	4 hr
May 18, 2:15 AM CDT	Flash Flood Warning	IND	Edwards	4 hr
May 18, 2:23 AM CDT	Flash Flood Warning	IND	Wayne	4 hr
May 18, 2:05 PM CDT	Severe Thunderstorm Warning	IND	Clay, Wayne	40 min
May 18, 2:45 PM CDT	Severe Thunderstorm Warning	IND	Crawford, Lawrence, Richland, Wabash	48 min
May 18, 2:45 PM CDT	Severe Thunderstorm Warning	IND	Edwards	48 min

Nearby

Flash Flood Warnings in Illinois, 1995 Every flash flood warning in 1995

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.