Alert archive / Ohio / Flash Flood Warnings in 2002

Flash Flood Warning 35, NWS Wilmington, OH

July 27, 2002Clinton County, Warren County, Ohio

NWS Wilmington, OH issued this flash flood warning at Jul 27, 2002, 7:53 AM EDT for Clinton County, Warren County, Ohio. It was in force for 97 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 27, 2002, 7:53 AM EDT (11:53 UTC)
Expired
Jul 27, 2002, 9:30 AM EDT
In force
97 min
Issued by
NWS Wilmington, OH
Area
Whole counties

Counties Clinton County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 14 km from the middle of the area, began a volume at 11:54 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 11.9 hours before the alert went out and 16 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, Cncnati-Daytn, OH at 00:00Z on 2002-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1482 joules per kilogram.LCLEL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2002-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 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
1482 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1112 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KILN 271153
FFWILN
OHC027-165-271430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
749 AM EDT SAT JUL 27 2002

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WARREN COUNTY IN OHIO...
  CLINTON COUNTY IN OHIO...

* UNTIL 930 AM EDT...

* DOPPLER RADAR INDICATED PERSISTENT THUNDERSTORMS WITH VERY HEAVY   
  RAIN OVER NORTHERN WARREN AND CLINTON COUNTIES.  SPOTTERS HAVE     
  REPORTED UP TO FOUR INCHES OF RAIN ALREADY...WITH ANOTHER ONE TO   
  TWO INCHES OF RAIN ON THE WAY.  THIS WILL CAUSE SMALL STREAMS TO   
  RISE OUT OF THEIR BANKS.

* SOME LOCATIONS IN THE WARNING AREA INCLUDE...
  LEBANON...
  SABINA...
  SPRINGBORO...
  WAYNESVILLE...
  WILMINGTON...
  CUBA...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
1 follow-up statement
000 
WGUS71 KILN 271335
FFSILN
OHC027-165-271350-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
935 AM EDT SAT JUL 27 2002

...FLASH FLOOD WARNING FOR WARREN AND CLINTON COUNTIES HAS EXPIRED...

NATIONAL WEATHER SERVICE RADAR INDICATED DIMINISHING RAIN ACROSS THE 
AREA...AND THUS THE FLOOD THREAT HAS DIMINISHED.  4 TO AS MUCH AS 6 
INCHES OF RAIN HAD FALLEN ACROSS MOST OF WARREN AND CLINTON COUNTIES 
IN THE PAST 6 HOURS.  ALTHOUGH THE WARNING HAS EXPIRED...CREEKS AND 
STREAMS ARE LIKELY TO BE FLOWING AT HIGH LEVELS.  IN ADDITION... 
STANDING WATER ON AREA ROADS IS LIKELY TO CONTINUE FOR A COUPLE MORE 
HOURS.

REMEMBER...DO NOT DRIVE ACROSS FLOODED ROADWAYS.  KEEP CHILDREN AWAY 
FROM CREEKS...STREAMS AND DRAINAGE DITCHES.


HICKMAN

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 27, 4:04 AM EDTSevere Thunderstorm WarningILNWarren41 min
Jul 27, 4:32 AM EDTSevere Thunderstorm WarningILNClinton43 min
Jul 27, 1:43 PM EDTTornado WarningILNBrown32 min

Nearby

Flash Flood Warnings in Ohio, 2002Every flash flood warning in 2002

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.