Alert archive / Ohio / Flash Flood Warnings in 2002

Flash Flood Warning 19, NWS Charleston, WV

June 4, 2002Perry County, Ohio

NWS Charleston, WV issued this flash flood warning at Jun 4, 2002, 5:59 PM EDT for Perry 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: Jun 4, 2002, 5:59 PM EDT (21:59 UTC)
Expired: Jun 4, 2002, 8:00 PM EDT
In force: 2 hr
Issued by: NWS Charleston, WV
Area: Whole counties

County Perry County, OH

The radar

The Cincinnati radar (KILN), 140 km from the middle of the area, began a volume at 22:01 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, 10.0 hours before the alert went out and 138 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: 2117 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRLX 042159
FFWRLX
OHC127-050000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
600 PM EDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PERRY COUNTY IN SOUTHEAST OHIO...

* UNTIL 800 PM EDT...

* AT 600 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED VERY      
  HEAVY RAINS ACROSS MUCH OF PERRY COUNTY.  RAIN IS EXPECTED TO      
  CONTINUE AND TRAIN OVER THE SAME AREAS THROUGH THE EARLY EVENING   
  HOURS.

--CALL TO ACTION-- DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 
WATER COVERS THE ROADWAY....ESPECIALLY AT NIGHT WHEN IT IS HARDER TO 
RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. 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.

PLEASE REPORT HIGH WATER...HAIL OR STRONG WINDS TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO
SO SAFELY.

$$

LAT...LON 3966 8205 3957 8204 3957 8226 3962 8237
          3993 8246 3990 8218 3983 8218 3981 8209
          3973 8209 3972 8203 3967 8204

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 Charleston, WV wrote its last area forecast discussion before this flash flood warning went out at Jun 4, 2:50 PM EDT, 3 hours 9 minutes earlier.

Area forecast discussion, Jun 4, 2:50 PM EDT, 3 hours 9 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
250 PM EDT TUE JUN 4 2002

TSTMS THAT POP THIS AFTERNOON WILL GENERALLY DISSIPATE A FEW HOURS
AFTER SUNSET..EXCEPT OVER SOUTHEAST OHIO AND FAR NORTHERN WEST
VIRGINIA WHERE SOME OUTFLOW BOUNDARIES MAY KEEP THINGS GOING UNTIL
AROUND MIDNIGHT.  DO NOT EXPECT ENOUGH ORGANIZED CONVECTION TO ISSUE
A FLOOD WATCH..BUT A FEW STORM UP NORTH MAY CAUSE SOME LOCALIZED
WATER PROBLEMS THIS EVENING.

MODELS ARE A BIT SLOWER WITH COLD FRONT PUSHING ACROSS WEDNESDAY
NIGHT AND THURSDAY..SO PREFER THE SLOWEST MODEL WHICH IS THE ETA.
THIS WILL LIKELY KEEP ORGANIZED CONVECTION DURING THE DAY WEDNESDAY
MAINLY OVER THE WESTERN HALF OF THE CWA AND MAINLY IN THE
AFTERNOON..GOING LIKELY POPS ALONG AND WEST OF OHIO RIVER WITH
CHANCE ELSEWHERE. POPS HIGHEST WEDNESDAY NIGHT AND THURSDAY MORNING
WITH COLD FRONT ALONG OHIO RIVER BY 12Z THURSDAY MORNING.  WE MAY
HAVE TO WORRY ABOUT MORE WIDESPREAD WATER PROBLEMS WEDNESDAY NIGHT
IF THE FRONT SLOWS DOWN SOME MORE..AS EXTREMELY HIGH PWS ARE WITH
THIS SYSTEM..BUT NO FLOOD WATCHES ARE EXPECTED AT THIS TIME.  FRONT
WILL PUSH BEYOND CWA BY 21Z..BUT THERE WILL BE POST FRONTAL
PRECIPITATION AS THE MAIN SHORT WAVE LAGS THE FRONT.  CLEARING
THURSDAY NIGHT AS HIGH PRESSURE BUILDS IN.

MOS GUIDANCE TEMPERATURES ARE CLOSE AND LOOK REASONABLE.

FRIDAY THROUGH NEXT TUESDAY...

TWEAKED TEMPS HERE AND THERE...BUT OVERALL SIMILAR STORY.  MODELS
MOVING A LITTLE SLOWER WITH PUSHING SYSTEM OUT ON THURSDAY...SO WILL
HAVE MORE CLOUDS LINGERING ACROSS NORTHEASTERN ZONES FRIDAY
MORNING.  WILL LEAVE OUT WORDING OF PRECIP UNTIL MONDAY...AS
PREVIOUS GO AROUND...AND ADD TUESDAY TO THE MIX.

.RLX...
WV...NONE.
VA...NONE.
KY...NONE.
OH...NONE.

.END/JMV/KS

In the hours before

Local storm report, Jun 4, 5:10 PM EDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON, WV
510 PM EDT TUE JUN 4 2002

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0455 PM    SOMERSET                  OH   FLASH FLOODS
06/04/02   PERRY                          WATER RUNNING ACROSS
                                          COUNTY ROADS OVER NORTHERN
                                          PART OF COUNTY. WATER
                                          OVERFLOWING FROM CULVERTS.
                                          REPORTED BY LAW ENFORCEMENT

HC/KS

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 4, 2:45 PM EDT	Severe Thunderstorm Warning	RLX	Perry	45 min
Jun 4, 3:08 PM EDT	Flash Flood Warning	RLX	Perry	3 hr
Jun 4, 3:30 PM EDT	Severe Thunderstorm Warning	RLX	Perry	45 min
Jun 4, 4:27 PM EDT	Severe Thunderstorm Warning	RLX	Perry	48 min
Jun 4, 5:39 PM EDT	Severe Thunderstorm Warning	RLX	Perry	51 min
Jun 4, 6:11 PM EDT	Severe Thunderstorm Warning	RLX	Jackson	34 min
Jun 4, 6:31 PM EDT	Severe Thunderstorm Warning	RLX	Morgan	44 min
Jun 4, 6:39 PM EDT	Severe Thunderstorm Warning	RLX	Athens, Meigs	51 min
Jun 4, 7:11 PM EDT	Severe Thunderstorm Warning	RLX	Washington	34 min
Jun 4, 7:31 PM EDT	Severe Thunderstorm Warning	RLX	Athens	44 min
Jun 4, 7:32 PM EDT	Severe Thunderstorm Warning	RLX	Meigs	43 min
Jun 4, 7:40 PM EDT	Severe Thunderstorm Warning	RLX	Gallia	35 min

Nearby

Flash Flood Warnings in Ohio, 2002 Every 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.