Alert archive / Ohio / Flash Flood Warnings in 2012

Flash Flood Warning 16, NWS Charleston, WV

May 4, 2012Vinton County, Ohio

NWS Charleston, WV issued this flash flood warning at May 4, 2012, 10:00 PM EDT for Vinton County, Ohio. It was in force for 6 hr. 2 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: May 4, 2012, 10:00 PM EDT (02:00 UTC)
Expired: May 5, 2012, 3:30 AM EDT
In force: 6 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

County Vinton County, OH

The radar

The Cincinnati radar (KILN), 119 km from the middle of the area, began a volume at 02:02 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

Time	Report	Where	Remark
May 4, 11:00 PM EDT	FLASH FLOOD	Mcarthur, OH	MULTIPLE HOMES EVACUATED DUE TO WATER. RT 50 AND 93 CLOSED DUE TO FLOODING. SPOTTER... HADDIX
May 4, 11:10 PM EDT	FLASH FLOOD	Mcarthur, OH	FLOODED ROADS SOUTH SIDE OF MCARTHUR

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 00:00Z, 2.0 hours before the alert went out and 118 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: 1668 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

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

156 
WGUS51 KRLX 050200
FFWRLX
OHC163-050400-
/O.NEW.KRLX.FF.W.0016.120505T0200Z-120505T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1000 PM EDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VINTON COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...MCARTHUR...LAKE HOPE STATE PARK...

* UNTIL MIDNIGHT EDT

* AT 954 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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. MOVE TO HIGHER GROUND.

&&

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

LAT...LON 3937 8275 3938 8252 3940 8251 3939 8229
      3930 8230 3929 8226 3923 8226 3921 8227
      3920 8230 3903 8233 3904 8244 3914 8243
      3915 8253 3918 8254 3921 8276

$$

21

3 follow-up statements

817 
WGUS51 KRLX 050354
FFWRLX
OHC163-050530-
/O.EXT.KRLX.FF.W.0016.000000T0000Z-120505T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1154 PM EDT FRI MAY 4 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  VINTON COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...MCARTHUR...LAKE HOPE STATE PARK...

* UNTIL 130 AM EDT

* AT 1150 PM EDT...FLASH FLOODING WAS ON GOING OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAGLE
  MILLS...CREOLA...ALLENSVILLE AND ZALESKI.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINFALL WILL CONTINUE TO 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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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. MOVE TO HIGHER GROUND.

&&

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

LAT...LON 3937 8275 3938 8252 3940 8251 3939 8229
      3930 8230 3929 8226 3923 8226 3921 8227
      3920 8230 3903 8233 3904 8244 3914 8243
      3915 8253 3918 8254 3921 8276

$$

21

270 
WGUS51 KRLX 050518
FFWRLX
OHC163-050730-
/O.EXT.KRLX.FF.W.0016.000000T0000Z-120505T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
118 AM EDT SAT MAY 5 2012

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  VINTON COUNTY IN SOUTHEAST OHIO...
  THIS INCLUDES THE CITIES OF...MCARTHUR...LAKE HOPE STATE PARK...

* UNTIL 330 AM EDT

* AT 113 AM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
  FLOODING CONTINUED OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EAGLE
  MILLS...CREOLA...ALLENSVILLE AND ZALESKI.

THE HEAVY RAIN...WHICH CAUSED THE FLASH FLOODING...HAD PUSHED   
SOUTHEAST OF THE WARNED AREA.  HOWEVER...SOME OF THE LARGER CREEKS 
AND STREAMS...WHICH WERE STILL QUITE HIGH...WERE STILL RESULTING IN 
WATER FLOWING ACROSS SOME ROADS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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. MOVE TO HIGHER GROUND.

&&

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

LAT...LON 3937 8275 3938 8252 3940 8251 3939 8229
      3930 8230 3929 8226 3923 8226 3921 8227
      3920 8230 3903 8233 3904 8244 3914 8243
      3915 8253 3918 8254 3921 8276

$$

09

782 
WGUS71 KRLX 050725
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
325 AM EDT SAT MAY 5 2012

OHC163-050731-
/O.EXP.KRLX.FF.W.0016.000000T0000Z-120505T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VINTON OH-
325 AM EDT SAT MAY 5 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 330 AM EDT FOR VINTON
COUNTY...

HEAVY RAIN IS NO LONGER ANTICIPATED...THEREFORE THE FLASH FLOOD
WARNING THAT WAS IN EFFECT HAS BEEN ALLOWED TO EXPIRE. 

STREAMS AND CREEKS HAVE BEGUN TO RECEDE.  HOWEVER...SOME OF THE 
LARGER STREAMS AND CREEKS REMAIN ARE STILL QUITE HIGH AND MAY STILL 
BE RESULTING IN SOME ROAD CLOSURES DUE TO HIGH WATER.

TURN AROUND DON'T DROWN. OBEY ANY SIGNS INDICATING ROADS ARE CLOSED 
DUE TO HIGH WATER. 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 3937 8275 3938 8252 3940 8251 3939 8229
      3930 8230 3929 8226 3923 8226 3921 8227
      3920 8230 3903 8233 3904 8244 3914 8243
      3915 8253 3918 8254 3921 8276

$$

09

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 8:07 PM EDT	Special Weather Statement	RLX	Morgan, Perry	53 min
May 4, 8:39 PM EDT	Special Weather Statement	RLX	Gallia, Jackson, Vinton	66 min
May 4, 9:02 PM EDT	Flash Flood Warning	RLX	Jackson	7 hr
May 4, 9:17 PM EDT	Special Weather Statement	RLX	Morgan, Perry	118 min
May 4, 9:33 PM EDT	Special Weather Statement	RLX	Athens	117 min
May 4, 10:12 PM EDT	Flash Flood Warning	RLX	Athens	6 hr
May 4, 10:29 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Jackson, Meigs, Vinton	31 min
May 4, 10:57 PM EDT	Severe Thunderstorm Warning	RLX	Gallia, Meigs	48 min
May 4, 11:34 PM EDT	Special Weather Statement	RLX	Athens, Gallia, Jackson, Lawrence, Meigs, Washington	3 hr
May 4, 11:50 PM EDT	Flash Flood Warning	RLX	Gallia, Jackson, Lawrence, Meigs	5 hr
May 5, 12:23 AM EDT	Special Weather Statement	RLX	Lawrence	22 min
May 5, 7:48 PM EDT	Special Weather Statement	RLX	Washington	87 min

Nearby

Flash Flood Warnings in Ohio, 2012 Every flash flood warning in 2012

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.