Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 21, NWS Pittsburgh, PA

May 10, 2003Greene County, Washington County, Pennsylvania; Marshall County, Ohio County, West Virginia

NWS Pittsburgh, PA issued this severe thunderstorm warning at May 10, 2003, 6:33 AM EDT for Greene County, Washington County, Pennsylvania; Marshall County, Ohio County, West Virginia. It was in force for 57 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: May 10, 2003, 6:33 AM EDT (10:33 UTC)
Expired: May 10, 2003, 7:30 AM EDT
In force: 57 min
Issued by: NWS Pittsburgh, PA
Area: Counties, with a storm outline in the text

Counties Greene County, PA, Washington County, PA, Marshall County, WV, Ohio County, WV

The radar

The Pittsburgh radar (KPBZ), 58 km from the middle of the area, began a volume at 10:33 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

Pittsburgh, PA (KPIT), launched 00:00Z, 10.6 hours before the alert went out and 49 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: 18 J/kg
Mixed-layer CIN: -278 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

872 
WUUS51 KPBZ 101033
SVRPBZ
PAC059-125-WVC051-069-101130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
632 AM EDT SAT MAY 10 2003

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GREENE COUNTY IN PENNSYLVANIA
  WASHINGTON COUNTY IN PENNSYLVANIA
  MARSHALL COUNTY IN WEST VIRGINIA
  OHIO COUNTY IN WEST VIRGINIA

* UNTIL 730 AM EDT

* AT 632 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM FROM 3 MILES WEST OF CLEARVIEW TO 8 MILES
  SOUTHEAST OF CAMERON...MOVING EAST AT 30 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  BENTLEYVILLE...
  EAST WASHINGTON...
  ELLSWORTH...
  WASHINGTON...
  WAYNESBURG...
  BETHLEHEM...
  CAMERON.

EARLIER TODAY...STORMS HAVE BEEN PRODUCING LARGE HAIL AND DAMAGING 
WIND. 
<<CALL TO ACTION>>SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 58
MILES AN HOUR AND LARGE HAIL GREATER THAN THREE QUARTERS OF AN INCH.
TAKE SHELTER IN A STRONG BUILDING. BEWARE OF HEAVY RAINS CAUSING 
PONDING OF ROADS AND LOW LYING AREAS. 


LAT...LON 4017 8070 3974 8070 3976 7997 3994 8003
          4021 7997 4015 8049

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 2:21 AM EDT	Severe Thunderstorm Warning	PBZ	Lawrence, Mercer	54 min
May 10, 2:56 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Butler, Lawrence	64 min
May 10, 3:48 AM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana	57 min
May 10, 7:12 AM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	63 min
May 10, 7:17 AM EDT	Severe Thunderstorm Warning	PBZ	Fayette	58 min
May 10, 7:28 AM EDT	Flash Flood Warning	PBZ	Greene	4 hr
May 10, 7:37 AM EDT	Flash Flood Warning	PBZ	Fayette	4 hr
May 10, 7:43 AM EDT	Flash Flood Warning	PBZ	Beaver	4 hr
May 10, 7:47 AM EDT	Flash Flood Warning	PBZ	Washington	4 hr
May 10, 8:06 AM EDT	Flash Flood Warning	PBZ	Allegheny, Westmoreland	3 hr
May 10, 7:32 AM EDT	Flash Flood Warning	PBZ	Preston	4 hr
May 10, 7:59 AM EDT	Flash Flood Warning	PBZ	Brooke, Hancock	4 hr
May 10, 9:55 AM EDT	Flash Flood Warning	PBZ	Ohio	3 hr
May 10, 7:18 PM EDT	Flash Flood Warning	PBZ	Preston	3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2003 Severe Thunderstorm Warnings in West Virginia, 2003 Every severe thunderstorm warning in 2003

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.