Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 79, NWS Cleveland, OH

September 10, 2016Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Sep 10, 2016, 7:24 PM EDT for Crawford County, Erie County, Pennsylvania. It was in force for 51 min. 4 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: Sep 10, 2016, 7:24 PM EDT (23:24 UTC)
Expired: Sep 10, 2016, 8:15 PM EDT
In force: 51 min
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Crawford County, PA, Erie County, PA

The radar

The Pittsburgh radar (KPBZ), 135 km from the middle of the area, began a volume at 23:26 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
Sep 10, 7:26 PM EDT	TSTM WND DMG	2 Sse Blooming Valley, PA	TREE DOWN ON ROAD.
Sep 10, 7:28 PM EDT	TSTM WND DMG	2 N Wattsburg, PA	SKYWARN SPOTTERS REPORTED TREES DOWN NORTH OF THE TOWN OF WATTSBURG.
Sep 10, 7:28 PM EDT	TSTM WND DMG	Mill Village, PA	SKYWARN SPOTTERS REPORTED TREES DOWN IN THE MILL VILLAGE AREA.
Sep 10, 8:23 PM EDT	TSTM WND DMG	Titusville, PA	CRAWFORD COUNTY DISPATCH RELAYED REPORTS OF DOWNED TREES ACROSS THE COUNTY INCLUDING SEVERAL IN THE TITUSVILLE AREA.

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.

Issued	Product	Office	Lasted
Sep 10, 3:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 11.4 hours before the alert went out and 147 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: 258 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

775 
WUUS51 KCLE 102324
SVRCLE
PAC039-049-110015-
/O.NEW.KCLE.SV.W.0079.160910T2324Z-160911T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
724 PM EDT SAT SEP 10 2016

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN CRAWFORD COUNTY IN NORTHWESTERN PENNSYLVANIA...
  EASTERN ERIE COUNTY IN NORTHWESTERN PENNSYLVANIA...

* UNTIL 815 PM EDT

* AT 723 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR NORTH EAST TO NEAR GUYS MILLS...MOVING
  NORTHEAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  MEADVILLE...CORRY...TITUSVILLE...UNION CITY...CAMBRIDGE SPRINGS...
  WATERFORD...WATTSBURG...RICEVILLE...LINCOLNVILLE...
  CANADOHTA LAKE...GUYS MILLS...COCHRANTON...SAEGERTOWN...HYDETOWN...
  MILL VILLAGE...BLOOMING VALLEY...TOWNVILLE...SPARTANSBURG...
  VENANGO AND ELGIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4162 7961 4162 7982 4149 8000 4149 8009
      4148 8014 4148 8029 4185 8006 4227 7977
      4201 7976 4199 7961
TIME...MOT...LOC 2323Z 233DEG 41KT 4224 7974 4170 8001 

HAIL...0.88IN
WIND...60MPH
 
$$

OUDEMAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 6:07 PM EDT	Special Weather Statement	CLE	Erie	38 min
Sep 10, 6:38 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Erie	67 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2016 Every severe thunderstorm warning in 2016

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.