Alert archive / West Virginia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 39, NWS Charleston, WV

May 1, 2017Doddridge County, Harrison County, Taylor County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at May 1, 2017, 2:44 PM EDT for Doddridge County, Harrison County, Taylor County, West Virginia. It was in force for 18 min. 1 report 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 1, 2017, 2:44 PM EDT (18:44 UTC)
Expired
May 1, 2017, 3:02 PM EDT
In force
18 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Doddridge County, WV, Harrison County, WV, Taylor County, WV

The radar

The Pittsburgh radar (KPBZ), 129 km from the middle of the area, began a volume at 18:48 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
May 1, 2:55 PM EDTTSTM WND DMGShinnston, WVMULTIPLE TREES AND POWERLINES DOWN FROM SHINSTON TO GRAFTON.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 1, 12:32 PM EDTTornado WatchSPC4 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 6.7 hours before the alert went out and 115 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, Pittsburgh, PA at 12:00Z on 2017-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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, Pittsburgh, PA at 12:00Z on 2017-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 217 square meters per square second.19395878Sfc1 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
11 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
1435 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
217 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

361 
WUUS51 KRLX 011844
SVRRLX
WVC017-033-091-011915-
/O.NEW.KRLX.SV.W.0039.170501T1844Z-170501T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston WV
244 PM EDT MON MAY 1 2017

The National Weather Service in Charleston West Virginia has issued a

* Severe Thunderstorm Warning for...
  East central Doddridge County in northern West Virginia...
  Central Taylor County in northern West Virginia...
  Harrison County in northern West Virginia...

* Until 315 PM EDT

* At 244 PM EDT, a severe thunderstorm was located over Salem, or 9
  miles west of Clarksburg, moving northeast at 65 mph.

  HAZARD...70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings. 

* Locations impacted include...
  Clarksburg, Bridgeport, Shinnston, Stonewood, Nutter Fort, Salem,
  Lumberport, Anmoore, Enterprise, Valley Falls, Wolf Summit,
  Meadland, Wallace, McGee, Meadowbrook and Despard.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 Interstate 79 between mile markers 118 and 128.
 Route 50 in West Virginia between mile markers 62 and 82.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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.

&&

A tornado watch remains in effect until 700 PM EDT for northern West
Virginia.

LAT...LON 3917 8052 3931 8066 3946 8044 3943 8028
      3939 8020 3940 8012 3941 8011 3939 8009
      3940 8003 3942 8000 3945 7994 3943 7989
      3941 7990
TIME...MOT...LOC 1844Z 231DEG 57KT 3929 8051 

HAIL...<.75IN
WIND...70MPH
 
$$

09
2 follow-up statements
602 
WWUS51 KRLX 011853
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
253 PM EDT MON MAY 1 2017

WVC017-011902-
/O.CAN.KRLX.SV.W.0039.000000T0000Z-170501T1915Z/
Doddridge WV-
253 PM EDT MON MAY 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DODDRIDGE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 700 PM EDT for northern West
Virginia.

LAT...LON 3922 8040 3934 8042 3939 8054 3946 8044
      3943 8028 3939 8020 3940 8012 3941 8011
      3939 8009 3940 8003 3942 8000 3945 7994
      3943 7989 3941 7990
TIME...MOT...LOC 1852Z 231DEG 57KT 3938 8037 

$$

WVC033-091-011915-
/O.CON.KRLX.SV.W.0039.000000T0000Z-170501T1915Z/
Taylor WV-Harrison WV-
253 PM EDT MON MAY 1 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR CENTRAL TAYLOR AND NORTHERN HARRISON COUNTIES...

At 252 PM EDT, a severe thunderstorm was located over Lumberport, or
near Clarksburg, moving northeast at 65 mph.

HAZARD...70 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings. 

Locations impacted include...
Clarksburg, Bridgeport, Shinnston, Stonewood, Nutter Fort,
Lumberport, Anmoore, Enterprise, Valley Falls, Meadland, Wallace,
McGee, Meadowbrook and Despard.

# 

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 Interstate 79 between mile markers 119 and 128.
 Route 50 in West Virginia between mile markers 75 and 82.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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.

&&

A tornado watch remains in effect until 700 PM EDT for northern West
Virginia.

LAT...LON 3922 8040 3934 8042 3939 8054 3946 8044
      3943 8028 3939 8020 3940 8012 3941 8011
      3939 8009 3940 8003 3942 8000 3945 7994
      3943 7989 3941 7990
TIME...MOT...LOC 1852Z 231DEG 57KT 3938 8037 

HAIL...<.75IN
WIND...70MPH
 
$$

09
384 
WWUS51 KRLX 011902
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
302 PM EDT MON MAY 1 2017

WVC033-091-011912-
/O.CAN.KRLX.SV.W.0039.000000T0000Z-170501T1915Z/
Taylor WV-Harrison WV-
302 PM EDT MON MAY 1 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL TAYLOR AND NORTHERN
HARRISON COUNTIES IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A tornado watch remains in effect until 700 PM EDT for northern West
Virginia.

LAT...LON 3922 8040 3934 8042 3939 8054 3946 8044
      3943 8028 3939 8020 3940 8012 3941 8011
      3939 8009 3940 8003 3942 8000 3945 7994
      3943 7989 3941 7990
TIME...MOT...LOC 1859Z 231DEG 57KT 3948 8021 

$$

09

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 11:28 AM EDTSevere Thunderstorm WarningRLXMason32 min
May 1, 1:00 PM EDTSpecial Weather StatementRLXLincoln, Putnam30 min
May 1, 1:39 PM EDTSpecial Weather StatementRLXCalhoun, Kanawha, Roane36 min
May 1, 1:45 PM EDTSpecial Weather StatementRLXRitchie, Tyler30 min
May 1, 2:27 PM EDTSpecial Weather StatementRLXDoddridge, Harrison33 min
May 1, 4:14 PM EDTSpecial Weather StatementRLXBarbour, Randolph, Upshur, Webster31 min
May 1, 4:45 PM EDTSpecial Weather StatementRLXBarbour, Randolph, Taylor30 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2017Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.