Alert archive / Ohio / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS Charleston, WV

June 19, 2009Athens County, Ohio

NWS Charleston, WV issued this flash flood warning at Jun 19, 2009, 9:55 AM EDT for Athens County, Ohio. It was in force for 3 hr. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 19, 2009, 9:55 AM EDT (13:55 UTC)
Expired
Jun 19, 2009, 12:45 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Athens County, OH

The radar

The Charleston,WV radar (KRLX), 118 km from the middle of the area, began a volume at 13:56 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.

What was reported inside it

TimeReportWhereRemark
Jun 19, 10:32 AM EDTFLASH FLOODNelsonville, OHROUTES 33 AND 685 FLOODED BETWEEN NELSONVILLE AND BUCHTEL.
Jun 19, 10:40 AM EDTFLASH FLOOD2 E Athens, OHHIGH WATER OVER ST HWY 550...ROAD CLOSED
Jun 19, 10:50 AM EDTFLASH FLOOD4 E Chauncey, OHSR-550 CLOSED DUE TO HIGH WATER.
Jun 19, 11:25 AM EDTFLASH FLOOD6 Ene Athens, OHSR-690 CLOSED DUE TO HIGH WATER.
Jun 19, 11:30 AM EDTFLASH FLOOD4 N Chauncey, OHSR-685 CLOSED DUE TO HIGH WATER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 1.9 hours before the alert went out and 155 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 2009-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3316 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 2009-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939587897Sfc1 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
3316 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.6
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 191355
FFWRLX
OHC009-191645-
/O.NEW.KRLX.FF.W.0013.090619T1355Z-090619T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
955 AM EDT FRI JUN 19 2009

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ATHENS COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...NELSONVILLE...GLOUSTER...COOLVILLE...
  ATHENS...ALBANY...

* UNTIL 1245 PM EDT

* AT 948 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND 
AUTOMATED RAIN GAGES INDICATED FLASH FLOODING FROM THUNDERSTORMS 
OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...AREAS 
ALONG MONDAY AND SUNDAY CREEKS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...


EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE 
BANKS OF CREEKS AND STREAMS...ESPECIALLY ALONG MONDAY AND SUNDAY 
CREEKS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
CHARLESTON.

&&

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

LAT...LON 3955 8205 3946 8205 3945 8185 3933 8186
      3930 8181 3927 8181 3927 8172 3919 8174
      3918 8176 3918 8180 3920 8226 3929 8226
      3930 8230 3947 8228 3947 8217 3955 8215

$$

21
1 follow-up statement
000 
WGUS71 KRLX 191643
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1243 PM EDT FRI JUN 19 2009

OHC009-191650-
/O.EXP.KRLX.FF.W.0013.000000T0000Z-090619T1645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATHENS OH-
1243 PM EDT FRI JUN 19 2009

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1245 PM EDT FOR ATHENS
COUNTY...

HEAVY RAIN HAS MOVED OUT OF THE AREA...THEREFORE THE 
FLASH FLOOD WARNING THAT WAS IN EFFECT HAS BEEN ALLOWED TO EXPIRE. 
STREAMS AND CREEKS HAVE BEGUN TO RECEDE. 

HOWEVER...WATER AND DEBRIS MAY STILL COVER ROADWAYS...SO MOTORISTS 
SHOULD EXERCISE EXTREME CAUTION. 

TURN AROUND DONT DROWN. DO NOT DRIVE YOUR CAR ON FLOODED ROADWAYS.

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

LAT...LON 3955 8205 3946 8205 3945 8185 3933 8186
      3930 8181 3927 8181 3927 8172 3919 8174
      3918 8176 3918 8180 3920 8226 3929 8226
      3930 8230 3947 8228 3947 8217 3955 8215

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:28 AM EDTSevere Thunderstorm WarningRLXAthens, Perry62 min
Jun 19, 8:28 AM EDTSevere Thunderstorm WarningRLXAthens, Meigs, Vinton, Washington47 min
Jun 19, 3:23 PM EDTFlash Flood WatchRLXAthens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more21 hr

Nearby

Flash Flood Warnings in Ohio, 2009Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.