Alert archive / Ohio / Flash Flood Warnings in 1995

Flash Flood Warning 178, NWS Wilmington, OH

August 17, 1995Mercer County, Ohio

NWS Wilmington, OH issued this flash flood warning at Aug 17, 1995, 2:13 PM EDT for Mercer County, Ohio. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 17, 1995, 2:13 PM EDT (18:13 UTC)
Expired
Aug 17, 1995, 4:15 PM EDT
In force
2 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

County Mercer County, OH

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 12:00Z, 6.2 hours before the alert went out and 80 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, Dayton/James M C, OH at 12:00Z on 1995-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3111 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dayton/James M C, OH at 12:00Z on 1995-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 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
3111 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCVG 171814 COR
FFWILN
OHC107-172015-

BULLETIN...CORRECTION TO DELETE EBS AND ADD URBAN AND SMALL STREAMS
FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS
NATIONAL WEATHER SERVICE WILMINGTON OH
213 PM EDT THU AUG 17 1995

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL OHIO

   ...MERCER COUNTY

AT 210 PM DOPPLER WEATHER RADAR IN WILMINGTON ESTIMATED
AROUND 1.6 INCHES OF RAIN HAD FALLEN IN THE PAST HOUR IN WESTERN
MERCER COUNTY NEAR WABASH.  MORE STORMS WILL TRACK ACROSS MERCER
COUNTY IN THE NEXT HOUR SO FLOODING PROBLEMS ARE EXPECTED.

NEVER DRIVE YOUR CAR INTO A FLOODED ROADWAY. YOU CAN EASILY
BEC^OME STRANDED OR TRAPPED. THE DEPTH OF WATER IS NOT ALWAYS
OBVIOUS. IF YOU ARE UNSURE ABOUT THE ROAD CONDITION OR THE WATER
LEVEL AHEAD OF YOU...TURN AROUND AND TAKE ANOTHER ROUTE.

SANDLER

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this flash flood warning went out at Aug 17, 10:16 AM EDT, 3 hours 57 minutes earlier.

Area forecast discussion, Aug 17, 10:16 AM EDT, 3 hours 57 minutes before
FORECAST COORDINATION MESSAGE...CORRECTION...
NATIONAL WEATHER SERVICE WILMINGTON OH
1015 AM EDT THU AUG 17 1995

THE BIG QUESTION OF THE DAY IS WHERE WILL THE CONVECTION FIRE.  A SHORT
WAVE WHICH WHEN LOOKING AT WATER VAPOR SEEMS TO BE LOCATED OVR CENTRAL
LK MI WILL PROBABLY TRIGGER TSTORMS IN N IND AND NW OH. ALSO TSTORMS
WHICH OCCURED EARLY THIS MORNING IN IND PRODUCED BNDRYS IN THE NRN
PORTION OF IND WHICH MAY TRIGGER CONVECTION IN NW OH.

THE ATMOSPHERE STILL REMAINS UNSTABLE WITH LOTS OF MOISTURE.  THE
MORNING DAY RUN SHOWED A CAPE OF 3600, LI OF -6, AND PW OF 2.1 . AFTER
MODIFYING THE SOUNDING FOR A HIGH OF 93 AND TD OF 74...THE CAPE BECAME
4200 AND THE LI WAS -7. SLIGHT COOLING AT 500 MB OVR NRN OH THROUGH THE
AFTERNOON HOURS WILL ALLOW FOR CONTINUED DESTABILIZATION IN THAT
REGION. SO IT LOOKS LIKE THE BEST CHC FOR TSTORMS IS IN NW OH WHILE NE
PROBABLY WON'T SEE TOO MUCH TODAY.

ONE LAST NOTE ACCAS WAS REPORTED THIS MORNING AnT FWA AND IND.

...CORRECTION FOR TIME...
INNES/SANDLER

In the hours before

Special weather statement, Aug 17, 11:34 AM EDT, 2 hours 39 minutes before
INZ074-058-066-075-073-080-059-050-OHZ025-035-079-070-052-053-078-
072-042-046-065-063-055-062-077-026-080-074-056-044-054-034-051-
061-015-064-060-016-073-043-045-024-071-172030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1135 AM EDT (1035 AM EST) THU AUG 17 1995

SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS ALL OF WESTERN AND
MUCH OF CENTRAL OHIO AS WELL AS EAST CENTRAL AND SOUTHEAST INDIANA.

A MOIST AND UNSTABLE ATMOSPHERE IS IN PLACE ACROSS THE REGION
WHILE A WEAK FRONT REMAINS ACROSS NORTHERN OHIO.  SCATTERED
THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON...ESPECIALLY
ACROSS WEST CENTRAL AND NORTHWEST OHIO.  SOME OF THESE STORMS
COULD BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL.  LOCALIZED
FLOODING WILL ALSO BE A CONCERN SINCE SOME OF THESE STORMS WILL
CONTAIN VERY HEAVY RAIN AND MOVE SLOWLY.

IF OUTDOORS...KEEP AN EYE ON THE SKY AND SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

SANDLER
Special weather statement, Aug 17, 11:37 AM EDT, 2 hours 36 minutes before
KYZ089>100-INZ050-058-059-066-073>075-080-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1140 AM EDT THU AUG 17 1995

...HEAT ADVISORY IS IN EFFECT FOR SOUTHEAST INDIANA AND NORTHERN
   KENTUCKY THIS AFTERNOON...

TEMPERATURES ARE EXPECTED TO CLIMB INTO THE LOWER AND MIDDLE 90S ACROSS
SOUTHEAST INDIANA AND NORTHERN KENTUCKY THIS AFTERNOON. THE HOT
TEMPERATURES WILL COMBINE WITH HIGH HUMIDITY LEVELS TO PRODUCE
EQUIVALENT TEMPERATURES...OR HEAT INDEX VALUES...RANGING BETWEEN 105
AND 110 DEGREES.

PEOPLE WORKING OUTDOORS OR IN PLACES WITH LITTLE VENTILATION...AS WELL
AS THOSE IN POOR HEALTH...SHOULD TAKE PROPER PRECAUTIONS AS PROLONGED
EXPOSURE TO THESE EXTREME CONDITIONS MAY LEAD TO HEAT EXHAUSTION OR HEAT
STROKE.

CHILDREN...THE ELDERLY AND PEOPLE WITH HEALTH PROBLEMS ARE MOST
VULNERABLE TO HEAT EXHAUSTION OR HEAT STROKE. CHECK ON CHILDREN...
ELDERLY RELATIVES OR NEIGHBORS FREQUENTLY.

...SOME RECOMMENDED SAFETY PRECAUTIONS...

     STAY IN AIR CONDITIONED BUILDINGS

     DRINK PLENTY OF FLUIDS

     WEAR LIGHT COLORED CLOTHES

     PROVIDE PETS AND LIVESTOCK WITH FRESH WATER AND SHADE

     DO NOT LEAVE CHILDREN OR PETS IN PARKED CARS

SANDLER
Special weather statement, Aug 17, 11:40 AM EDT, 2 hours 33 minutes before
KYZ089>100-INZ050-058-059-066-073>075-080-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1140 AM EDT THU AUG 17 1995

...HEAT ADVISORY IS IN EFFECT FOR SOUTHEAST INDIANA AND NORTHERN
   KENTUCKY THIS AFTERNOON...

TEMPERATURES ARE EXPECTED TO CLIMB INTO THE LOWER AND MIDDLE 90S ACROSS
SOUTHEAST INDIANA AND NORTHERN KENTUCKY THIS AFTERNOON. THE HOT
TEMPERATURES WILL COMBINE WITH HIGH HUMIDITY LEVELS TO PRODUCE
EQUIVALENT TEMPERATURES...OR HEAT INDEX VALUES...RANGING BETWEEN 105
AND 110 DEGREES.

PEOPLE WORKING OUTDOORS OR IN PLACES WITH LITTLE VENTILATION...AS WELL
AS THOSE IN POOR HEALTH...SHOULD TAKE PROPER PRECAUTIONS AS PROLONGED
EXPOSURE TO THESE EXTREME CONDITIONS MAY LEAD TO HEAT EXHAUSTION OR HEAT
STROKE.

CHILDREN...THE ELDERLY AND PEOPLE WITH HEALTH PROBLEMS ARE MOST
VULNERABLE TO HEAT EXHAUSTION OR HEAT STROKE. CHECK ON CHILDREN...
ELDERLY RELATIVES OR NEIGHBORS FREQUENTLY.

...SOME RECOMMENDED SAFETY PRECAUTIONS...

     STAY IN AIR CONDITIONED BUILDINGS

     DRINK PLENTY OF FLUIDS

     WEAR LIGHT COLORED CLOTHES

     PROVIDE PETS AND LIVESTOCK WITH FRESH WATER AND SHADE

     DO NOT LEAVE CHILDREN OR PETS IN PARKED CARS

SANDLER
Special weather statement, Aug 17, 2:04 PM EDT, 9 minutes before
INZ074-058-066-073-059-050-OHZ025-035-079-070-052-053-078-072-042-
046-063-055-062-077-026-080-056-044-054-034-051-061-060-016-043-
045-024-071-180100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
203 PM EDT (103 PM EST) THU AUG 17 1995

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM EDT
(8 PM EST) FOR MUCH OF WESTERN AND CENTRAL OHIO AND
   EAST CENTRAL AND SOUTHEAST INDIANA...

AT 2 PM EDT A LINE OF STRONG THUNDERSTORMS EXTENDED FROM
BLOOMINGTON INDIANA TO TOLEDO OHIO.  THE LINE OF STORMS WAS
MOVING EAST AT 20 MPH AND IS EXPECTED TO EXPAND AS IT MOVES ACROSS
EAST CENTRAL INDIANA...AND WESTERN AND CENTRAL OHIO.

THESE STORMS ARE EXPECTED TO INTENSIFY.  SOME COULD PRODUCE DAMAGING
WINDS AND LARGE HAIL THAT IS THREE-QUARTERS OF AN INCH IN DIAMETER
OR GREATER.  FREQUENT LIGHTNING HAS ALSO BEEN REPORTED WITH THESE
STORMS.  A FEW OF THESE STORMS HAVE ALREADY PRODUCED RADAR
ESTIMATED RAINFALL OF UP TO 1.6 INCHES IN AN HOUR ACROSS
WESTERN MERCER COUNTY OHIO.  THUS...LOCALIZED FLOODING WILL
ALSO BE A HAZARD.

IF THREATENING WEATHER APPROACHES SEEK SHELTER IMMEDIATELY.

SANDLER

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 3:25 PM EDTFlash Flood WarningILNDarke, Mercer4 hr
Aug 17, 5:54 PM EDTSevere Thunderstorm WarningILNHocking51 min
Aug 17, 7:13 PM EDTFlash Flood WarningILNHocking3 hr

Nearby

Flash Flood Warnings in Ohio, 1995Every 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.