Alert archive / Maryland / Tornado Warnings in 2015

Tornado Warning 9, NWS Pittsburgh, PA

June 23, 2015Garrett County, Maryland; Preston County, West Virginia

NWS Pittsburgh, PA issued this tornado warning at Jun 23, 2015, 4:04 PM EDT for Garrett County, Maryland; Preston County, West Virginia. It was in force for 26 min. 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
Jun 23, 2015, 4:04 PM EDT (20:04 UTC)
Expired
Jun 23, 2015, 4:30 PM EDT
In force
26 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Garrett County, MD, Preston County, WV

The radar

The Pittsburgh radar (KPBZ), 137 km from the middle of the area, began a volume at 20:05 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 23, 4:05 PM EDTHAIL 1Corinth, WV1.00 INCH HAIL IN CORINTH
Jun 23, 4:23 PM EDTFUNNEL CLOUDSwanton, MDPICTURES OF A FUNNEL CLOUD NEAR SWANTON

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
Jun 23, 1:17 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 8.1 hours before the alert went out and 120 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 2015-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1125 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 2015-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 198 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
1125 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
899 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

420 
WFUS51 KPBZ 232004
TORPBZ
MDC023-WVC077-232030-
/O.NEW.KPBZ.TO.W.0009.150623T2004Z-150623T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
404 PM EDT TUE JUN 23 2015

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN GARRETT COUNTY IN WESTERN MARYLAND...
  EAST CENTRAL PRESTON COUNTY IN NORTHERN WEST VIRGINIA...

* UNTIL 430 PM EDT
    
* AT 404 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR TERRA ALTA...MOVING NORTHEAST AT 30 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  OAKLAND AROUND 410 PM EDT.
  MOUNTAIN LAKE PARK AND DEER PARK AROUND 415 PM EDT.
  ACCIDENT AROUND 430 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
SWALLOW FALLS STATE PARK...MCHENRY...MCCOMAS BEACH...CRELLIN...HUTTON
AND DEEP CREEK LAKE STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

PLEASE REPORT SEVERE WEATHER BY CALLING 412-262-1988...POSTING TO THE
NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH. 

&&

LAT...LON 3937 7954 3946 7959 3964 7930 3948 7915
TIME...MOT...LOC 2004Z 244DEG 28KT 3945 7949 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

24
2 follow-up statements
686 
WWUS51 KPBZ 232011
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
411 PM EDT TUE JUN 23 2015

WVC077-232021-
/O.CAN.KPBZ.TO.W.0009.000000T0000Z-150623T2030Z/
PRESTON WV-
411 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR EAST CENTRAL PRESTON COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
WESTERN MARYLAND.

LAT...LON 3948 7915 3939 7948 3949 7948 3962 7928
TIME...MOT...LOC 2011Z 251DEG 28KT 3945 7940 

$$

MDC023-232030-
/O.CON.KPBZ.TO.W.0009.000000T0000Z-150623T2030Z/
GARRETT MD-
411 PM EDT TUE JUN 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
NORTHWESTERN GARRETT COUNTY...
    
AT 411 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER OAKLAND...MOVING EAST AT 35 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  DEER PARK AROUND 415 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
MCHENRY...SWALLOW FALLS STATE PARK...MCCOMAS BEACH...HUTTON...DEEP
CREEK LAKE STATE PARK AND CRELLIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

PLEASE REPORT SEVERE WEATHER BY CALLING 412-262-1988...POSTING TO THE
NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER AT NWSPITTSBURGH. 

&&

LAT...LON 3948 7915 3939 7948 3949 7948 3962 7928
TIME...MOT...LOC 2011Z 251DEG 28KT 3945 7940 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

24
188 
WWUS51 KPBZ 232023
SVSPBZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
423 PM EDT TUE JUN 23 2015

MDC023-232033-
/O.EXP.KPBZ.TO.W.0009.000000T0000Z-150623T2030Z/
GARRETT MD-
423 PM EDT TUE JUN 23 2015

...THE TORNADO WARNING FOR NORTHWESTERN GARRETT COUNTY WILL EXPIRE AT
430 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FOR
WESTERN MARYLAND.

LAT...LON 3948 7915 3939 7948 3949 7948 3962 7928
TIME...MOT...LOC 2023Z 244DEG 28KT 3945 7940 

$$

07

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 3:47 PM EDTSevere Thunderstorm WarningPBZGarrett58 min
Jun 23, 4:25 PM EDTSevere Thunderstorm WarningPBZGarrett49 min
Jun 23, 4:37 PM EDTAreal Flood AdvisoryPBZGarrett3 hr
Jun 23, 4:49 PM EDTFlash Flood WarningPBZGarrett3 hr
Jun 23, 5:02 PM EDTSpecial Weather StatementPBZGarrett58 min
Jun 23, 2:12 PM EDTSevere Thunderstorm WarningPBZMarshall48 min
Jun 23, 3:03 PM EDTSevere Thunderstorm WarningPBZBrooke, Ohio42 min
Jun 23, 3:16 PM EDTSevere Thunderstorm WarningPBZMarshall, Wetzel29 min
Jun 23, 4:21 PM EDTSevere Thunderstorm WarningPBZTucker54 min
Jun 23, 4:45 PM EDTSpecial Weather StatementPBZMarion30 min
Jun 23, 5:35 PM EDTSpecial Weather StatementPBZTucker55 min
Jun 23, 6:16 PM EDTSpecial Weather StatementPBZTucker29 min

Nearby

Tornado Warnings in Maryland, 2015Tornado Warnings in West Virginia, 2015Every tornado warning in 2015Tornadoes in 2015

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.