Alert archive / Ohio / Flash Flood Warnings in 2002

Flash Flood Warning 27, NWS Wilmington, OH

May 28, 2002Scioto County, Ohio

NWS Wilmington, OH issued this flash flood warning at May 28, 2002, 3:42 PM EDT for Scioto County, Ohio. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 28, 2002, 3:42 PM EDT (19:42 UTC)
Expired
May 28, 2002, 5:45 PM EDT
In force
2 hr
Issued by
NWS Wilmington, OH
Area
Whole counties

County Scioto County, OH

The radar

The Cincinnati radar (KILN), 99 km from the middle of the area, began a volume at 19:46 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 12:00Z, 7.7 hours before the alert went out and 98 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 12:00Z on 2002-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 341 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, Cncnati-Daytn, OH at 12:00Z on 2002-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.193958Sfc1 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
341 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
42 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 
WGUS51 KILN 281942
FFWILN
OHC145-282145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
339 PM EDT TUE MAY 28 2002

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SCIOTO COUNTY IN SOUTH CENTRAL OHIO...

* UNTIL 545 PM EDT...

* AT 339 PM EDT...RADAR INDICATED 3 TO 4 INCHES OF RAIN HAD FALLEN 
  IN AN HOUR ABOUT 12 MILES WEST OF LUCASVILLE...OR ABOUT 10 MILES   
  NORTHWEST OF WEST PORTSMOUTH. THE STORMS THAT PRODUCED THIS HEAVY
  RAINFALL HAVE DIMINISHED. HOWEVER...RUNOFF IS REACHING AREA 
  STREAMS AND CREEKS CAUSING RAPID RISES.

* SOME LOCATIONS IN THE WARNING AREA INCLUDE...
  LUCASVILLE...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA FOR ANY FURTHER STATEMENTS
OR WARNINGS.
1 follow-up statement
000 
WGUS71 KILN 282040
FFSILN
OHC145-282145-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
438 PM EDT TUE MAY 28 2002

...A FLASH FLOOD WARNING CONTINUES FOR SCIOTO COUNTY UNTIL 545 PM
EDT...

AT 438 PM EDT...RADAR INDICATED SHOWERS CONTINUING ACROSS NORTHWEST 
SCIOTO COUNTY. HOWEVER...ADDITIONAL SHOWERS AND THUNDERSTORMS MAY 
MOVE INTO THIS AREA BRINGING UP TO AN ADDITIONAL INCH OF RAINFALL. 
THUS HIGH WATER WILL CONTINUE ON AREA STREAMS AND CREEKS.

A WEATHER SPOTTER REPORTED TWO FEET OF WATER OVER HIGHWAY 73 EAST OF 
OTWAY AT 359 PM.

NEVER ATTEMPT TO DRIVE THROUGH A FLOODED ROAD OR AROUND HIGH WATER
SIGNS. MORE THAN HALF OF FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. IT
ONLY TAKES BETWEEN ONE AND TWO FEET OF WATER TO FLOAT A CAR OR TRUCK.

STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST SEVERE
WEATHER INFORMATION.

NNNN

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 May 28, 3:41 PM EDT, 1 minute earlier.

Area forecast discussion, May 28, 3:41 PM EDT, 1 minute before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
338 9M EDT TUE MAY 28 2002

LTST RADAR SHWS CONVECTION ACROSS SOUTHERN OHIO AND NORTHERN
KENTUCKY.  CAPES ARE AROUND 1500 J/KG THERE.  STORMS HAVE HAD UP TO
55 VIL BUT HAIL REPORTS HAVE BEEN LESS THAN 3/4 INCH.  ALSO...RADAR
AND GAGES INDICATE THAT BETWEEN 1 AND 2 INCHES OF RAIN HAS FALLEN
WITH SEVERAL OF THE STORMS.  WILL MAKE A DECISION AT ISSUE TIME
REGARDING TIMING OF PCPN TONIGHT.

WILL KEEP 40 POPS ON WEDNESDAY.  NOT MUCH FORCING BUT SURFACE
BOUNDARY IN PROXIMITY AND CAPES ARE AROUND 1500 J/KG AGAIN WITH NO
CIN IN AFTERNOON.  A LOT OF MID LEVEL AND LOW LEVEL MOISTURE WITH 70
PERCENT RH UP TO 30000 FEET AND DECENT OMEGA THROUGH THE LAYER.  FWC
TEMPS SEEM TOO HIGH WITH THIS PROFILE.  ETA AND AVN DID REALIZE
EFFECT OF RAIN ON TEMPS FOR TODAY AND THEY ARE BOTH GOING UPPER 70S
TO LOW 80S.  WILL GO LOW 80S AS THICKNESS POINT TO THIS.

FOR THURSDAY...THERE IS LESS MID LEVEL MOISTURE BUT LOW LEVEL
MOISTURE WILL STILL BE ABUNDANT.  THE RECENTLY COOL ETA NOW AS WARM
AS FWC IN MID 80S.  OTHER TECHNIQUES POINT TO THIS AS WELL.
ALSO...AVN AND ETA HAVE LESS PCPN THAN TODAY OR WEDNESDAY ALTHOUGH
INSTABILITY IS ABOUT THE SAME.  TEMPS VERY DEPENDANT ON PCPN AND
CLOUDS. WILL STICK CLOSE TO ETA VALUES.

MRF OPERATIONAL AND PERTIBATIONS HAVE WARMED UP A BIT THIS WEEKEND.
MONDAY AND TUESDAY STILL LOOK WET.

.ILN...NONE.

CENTER

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 12:52 PM EDTSevere Thunderstorm WarningILNClermont, Warren38 min
May 28, 1:27 PM EDTSevere Thunderstorm WarningILNClermont, Hamilton48 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.