Alert archive / Ohio / Flash Flood Warnings in 2017

Flash Flood Warning 4, NWS Charleston, WV

March 1, 2017Perry County, Ohio

NWS Charleston, WV issued this flash flood warning at Mar 1, 2017, 8:34 AM EST for Perry County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 1, 2017, 8:34 AM EST (13:34 UTC)
Expired
Mar 1, 2017, 11:30 AM EST
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Perry County, OH

The radar

The Cincinnati radar (KILN), 138 km from the middle of the area, began a volume at 13:36 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, 1.6 hours before the alert went out and 136 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 2017-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -229 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
777 m above ground
0-6 km bulk shear
96 kt
0-1 km storm-relative helicity
-229 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

020 
WGUS51 KRLX 011334
FFWRLX
OHC127-011630-
/O.NEW.KRLX.FF.W.0004.170301T1334Z-170301T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
834 AM EST WED MAR 1 2017

The National Weather Service in Charleston West Virginia has issued a

* Flash Flood Warning for...
  Northern Perry County in southeastern Ohio...

* Until 1130 AM EST

* At 833 AM EST, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is occurring.

* Some locations that will experience flooding include...
  Somerset, Harbor Hills, Crooksville, Thornville and Glenford. 

* Swift water rescues are being reported in Roseville in the 
  northeastern portion of the county.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report Severe Weather to the National Weather Service by
calling toll free, 800 401 9535, when you can do so safely.

You may also report severe weather by posting your report to the
Charleston West Virginia National Weather Service Facebook Page, or
by using the Twitter Hashtag, NWSRLX.

&&

LAT...LON 3993 8242 3992 8241 3991 8217 3982 8217
      3982 8208 3977 8208 3979 8240 3983 8240
      3984 8247 3993 8246

$$

26
2 follow-up statements
739 
WGUS71 KRLX 011504
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1004 AM EST WED MAR 1 2017

OHC127-011630-
/O.CON.KRLX.FF.W.0004.000000T0000Z-170301T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Perry OH-
1004 AM EST WED MAR 1 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM EST FOR
NORTHERN PERRY COUNTY...

At 1003 AM EST, Doppler radar indicated that the heaviest rainfall 
with thunderstorms has moved east, but light to moderate rainfall 
will continue over the next hour.  Streams and creeks will continue 
to rise over the next couple hours due to water runoff.  

Some locations that will experience flooding include...
Somerset, Harbor Hills, Crooksville, Thornville and Glenford. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Please report Severe Weather to the National Weather Service by
calling toll free, 800 401 9535, when you can do so safely.

You may also report severe weather by posting your report to the
Charleston West Virginia National Weather Service Facebook Page, or
by using the Twitter Hashtag, NWSRLX.

&&

LAT...LON 3993 8242 3992 8241 3991 8217 3982 8217
      3982 8208 3977 8208 3979 8240 3983 8240
      3984 8247 3993 8246

$$

kistner
152 
WGUS71 KRLX 011555
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1055 AM EST WED MAR 1 2017

OHC127-011605-
/O.CAN.KRLX.FF.W.0004.000000T0000Z-170301T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Perry OH-
1055 AM EST WED MAR 1 2017

...THE FLASH FLOOD WARNING FOR NORTHERN PERRY COUNTY IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3993 8242 3992 8241 3991 8217 3982 8217
      3982 8208 3977 8208 3979 8240 3983 8240
      3984 8247 3993 8246

$$

Kistner

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 3:32 AM ESTSpecial Weather StatementRLXAthens, Morgan, Vinton43 min
Mar 1, 3:36 AM ESTSpecial Weather StatementRLXMorgan, Perry39 min
Mar 1, 3:48 AM ESTSevere Thunderstorm WarningRLXAthens, Morgan, Vinton, Washington27 min
Mar 1, 4:14 AM ESTSevere Thunderstorm WarningRLXMorgan, Washington31 min
Mar 1, 5:04 AM ESTSpecial Weather StatementRLXGallia, Jackson26 min
Mar 1, 5:30 AM ESTSpecial Weather StatementRLXGallia30 min
Mar 1, 5:44 AM ESTSevere Thunderstorm WarningRLXGallia, Meigs31 min
Mar 1, 6:08 AM ESTFlash Flood WarningRLXGallia, Jackson, Lawrence3 hr
Mar 1, 6:12 AM ESTSevere Thunderstorm WarningRLXGallia, Lawrence33 min
Mar 1, 6:44 AM ESTSevere Thunderstorm WarningRLXGallia, Lawrence31 min
Mar 1, 7:02 AM ESTSpecial Weather StatementRLXLawrence28 min
Mar 1, 7:53 AM ESTAreal Flood WarningRLXMeigs3 hr
Mar 1, 8:02 AM ESTAreal Flood WarningRLXWashington3 hr
Mar 1, 8:22 AM ESTSevere Thunderstorm WarningRLXGallia, Jackson, Lawrence23 min
Mar 1, 8:23 AM ESTFlash Flood WarningRLXAthens, Jackson, Morgan, Perry, Vinton3 hr
Mar 1, 8:28 AM ESTSpecial Weather StatementRLXAthens, Morgan, Vinton32 min
Mar 1, 8:47 AM ESTSevere Thunderstorm WarningRLXAthens, Gallia, Jackson, Lawrence, Meigs, Vinton28 min
Mar 1, 8:58 AM ESTTornado WarningRLXGallia, Meigs32 min
Mar 1, 9:01 AM ESTSevere Thunderstorm WarningRLXLawrence44 min
Mar 1, 9:03 AM ESTSpecial Weather StatementRLXWashington27 min
Mar 1, 9:07 AM ESTFlash Flood WarningRLXAthens, Gallia, Jackson, Meigs, Morgan, Vinton5 hr
Mar 1, 9:09 AM ESTFlash Flood WarningRLXWashington5 hr
Mar 1, 9:12 AM ESTFlash Flood WarningRLXGallia, Jackson, Lawrence5 hr
Mar 1, 9:16 AM ESTSevere Thunderstorm WarningRLXGallia, Lawrence, Meigs29 min
Mar 1, 9:28 AM ESTTornado WarningRLXMeigs32 min
Mar 1, 11:05 AM ESTAreal Flood WarningRLXAthens, Jackson, Morgan, Perry, Vinton9 hr
Mar 1, 11:33 AM ESTAreal Flood WarningRLXAthens, Gallia, Jackson, Meigs, Morgan, Vinton3 hr
Mar 1, 11:39 AM ESTAreal Flood WarningRLXGallia, Jackson, Lawrence16 hr
Mar 1, 12:23 PM ESTAreal Flood WarningRLXWashington8 hr
Mar 1, 2:40 PM ESTAreal Flood WarningRLXMeigs12 hr
Mar 1, 6:15 PM ESTRiver Flood WarningRLXWashington7 hr

Nearby

Flash Flood Warnings in Ohio, 2017Every flash flood warning in 2017

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.