Alert archive / Pennsylvania / Tornado Warnings in 2013

Tornado Warning 23, NWS Cleveland, OH

July 23, 2013Crawford County, Pennsylvania

NWS Cleveland, OH issued this tornado warning at Jul 23, 2013, 4:38 PM EDT for Crawford County, Pennsylvania. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 23, 2013, 4:38 PM EDT (20:38 UTC)
Expired
Jul 23, 2013, 5:15 PM EDT
In force
37 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon

County Crawford County, PA

The radar

The Pittsburgh radar (KPBZ), 138 km from the middle of the area, began a volume at 20:40 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 23, 1:54 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.6 hours before the alert went out and 149 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 2013-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2013-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 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
3 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
530 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

645 
WFUS51 KCLE 232038
TORCLE
PAC039-232115-
/O.NEW.KCLE.TO.W.0023.130723T2038Z-130723T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
438 PM EDT TUE JUL 23 2013

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA...

* UNTIL 515 PM EDT

* AT 434 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 7 MILES SOUTHWEST OF UNION CITY...OR 17 MILES
  NORTHEAST OF MEADVILLE...AND MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SPARTANSBURG AND TITUSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR CLOSET.

&&

LAT...LON 4161 7962 4161 7964 4175 8005 4185 8000
      4185 7966 4184 7960 4162 7961
TIME...MOT...LOC 2038Z 282DEG 26KT 4181 7987

$$

LAPLANTE
2 follow-up statements
552 
WWUS51 KCLE 232058
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
458 PM EDT TUE JUL 23 2013

PAC039-232115-
/O.CON.KCLE.TO.W.0023.000000T0000Z-130723T2115Z/
CRAWFORD PA-
458 PM EDT TUE JUL 23 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR
NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST PENNSYLVANIA...

AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE SQUALL LINE CAPABLE OF PRODUCING DAMAGING STRAIGHT LINE WINDS
AND BRIEF RAIN-WRAPPED TORNADOES. THIS POSSIBLE TORNADO WAS LOCATED
NEAR SPARTANSBURG...OR 24 MILES NORTH OF OIL CITY...MOVING EAST AT 30
MPH.

LOCATIONS NEAR THE PATH OF THE  POSSIBLE TORNADO INCLUDE....

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. OTHERWISE...SEEK
SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR
ROOM SUCH AS A CLOSET.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR NORTHEASTERN OHIO AND NORTHWEST PENNSYLVANIA.

&&

LAT...LON 4161 7962 4161 7964 4165 7972 4183 7974
      4185 7966 4184 7960 4162 7961
TIME...MOT...LOC 2059Z 282DEG 26KT 4176 7963

$$

LAPLANTE
776 
WWUS51 KCLE 232109
SVSCLE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
509 PM EDT TUE JUL 23 2013

PAC039-232120-
/O.EXP.KCLE.TO.W.0023.000000T0000Z-130723T2115Z/
CRAWFORD PA-
509 PM EDT TUE JUL 23 2013

...THE TORNADO WARNING FOR NORTHEASTERN CRAWFORD COUNTY IN NORTHWEST
PENNSYLVANIA EXPIRES AT 515 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR NORTHEASTERN OHIO AND NORTHWEST PENNSYLVANIA.

LAT...LON 4161 7962 4161 7964 4165 7972 4183 7974
      4185 7966 4184 7960 4162 7961
TIME...MOT...LOC 2110Z 282DEG 26KT 4174 7953

$$

LAPLANTE

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 2:37 AM EDTDense Fog AdvisoryCLECrawford, Erie6 hr
Jul 23, 4:11 PM EDTSevere Thunderstorm WarningCLECrawford, Erie64 min
Jul 23, 4:32 PM EDTFlash Flood WarningCLECrawford, Erie5 hr

Nearby

Tornado Warnings in Pennsylvania, 2013Every tornado warning in 2013Tornadoes in 2013

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.