Alert archive / West Virginia / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 897

August 26, 20035 states

The Storm Prediction Center issued this severe thunderstorm watch at Aug 26, 2003, 9:20 PM EDT for 5 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 26, 2003, 9:20 PM EDT (01:20 UTC)
Expired
Aug 27, 2003, 3:00 AM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 39 counties

Allegany County, MD, Garrett County, MD, Belmont County, OH, Jefferson County, OH, Fayette County, PA, Greene County, PA, Washington County, PA, City of Harrisonburg, VA, City of Winchester, VA, Frederick County, VA, Greene County, VA, Madison County, VA, Page County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Barbour County, WV, Brooke County, WV, Doddridge County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Harrison County, WV, Lewis County, WV, Marion County, WV, Marshall County, WV, Mineral County, WV, Monongalia County, WV, Morgan County, WV, Ohio County, WV, Pendleton County, WV, Preston County, WV, Randolph County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Upshur County, WV, Wetzel County, WV

The radar

The Pittsburgh radar (KPBZ), 106 km from the middle of the area, began a volume at 01:21 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.

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 26, 9:29 PM EDTSevere Thunderstorm WarningPBZBrooke, Hancock, Marshall, Ohio46 min
Aug 26, 9:38 PM EDTSevere Thunderstorm WarningPBZWashington52 min
Aug 26, 9:43 PM EDTSevere Thunderstorm WarningPBZGreene47 min
Aug 26, 9:45 PM EDTSevere Thunderstorm WarningPBZWetzel45 min
Aug 26, 10:04 PM EDTSevere Thunderstorm WarningPBZMonongalia41 min
Aug 26, 10:10 PM EDTSevere Thunderstorm WarningPBZMarion50 min
Aug 26, 10:11 PM EDTSevere Thunderstorm WarningPBZFayette49 min
Aug 26, 10:19 PM EDTSevere Thunderstorm WarningPBZPreston41 min
Aug 26, 10:35 PM EDTSevere Thunderstorm WarningPBZGarrett40 min
Aug 26, 10:52 PM EDTSevere Thunderstorm WarningRLXDoddridge23 min
Aug 26, 11:11 PM EDTSevere Thunderstorm WarningLWXAllegany49 min
Aug 26, 11:13 PM EDTSevere Thunderstorm WarningPBZTucker47 min
Aug 26, 11:26 PM EDTSevere Thunderstorm WarningLWXGrant64 min
Aug 26, 11:52 PM EDTSevere Thunderstorm WarningLWXHardy38 min
Aug 27, 12:19 AM EDTSevere Thunderstorm WarningLWXShenandoah41 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 1.3 hours before the alert went out and 90 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 00:00Z on 2003-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 366 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2003-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 square meters per square second.193958Sfc1 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
366 J/kg
Mixed-layer CIN
-214 J/kg
Mixed-layer LCL
1453 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 10:18 PM EDTMesoscale DiscussionSPCAllegany, Garrett57 min
Aug 27, 12:22 AM EDTMesoscale DiscussionSPCCharles53 min
Aug 27, 6:11 AM EDTMesoscale DiscussionSPCAllegany, Garrett, Washington2 hr
Aug 27, 9:23 AM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Calvert, Caroline, Carroll and 17 more2 hr
Aug 27, 9:40 AM EDTSevere Thunderstorm WatchSPCHarford5 hr
Aug 27, 10:35 AM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more5 hr
Aug 27, 2:10 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more65 min
Aug 27, 3:09 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Frederick and 7 more66 min
Aug 27, 3:30 PM EDTSevere Thunderstorm WatchSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 9 more7 hr
Aug 27, 5:03 PM EDTMesoscale DiscussionSPCAllegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 10 more87 min
Aug 27, 6:56 PM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Caroline, Carroll, Cecil and 15 more64 min
Aug 27, 7:30 PM EDTSevere Thunderstorm WatchSPCCaroline, Cecil, Dorchester, Kent, Queen Anne's, Somerset and 3 more4 hr
Aug 27, 2:15 AM EDTMesoscale DiscussionSPCAllen, Ashland, Crawford, Defiance, Erie, Fulton and 24 more90 min
Aug 27, 2:35 AM EDTSevere Thunderstorm WatchSPCAllen, Ashland, Carroll, Crawford, Defiance, Erie and 21 more5 hr
Aug 27, 4:57 AM EDTMesoscale DiscussionSPCAllen, Ashland, Crawford, Defiance, Erie, Fulton and 17 more93 min
Aug 27, 9:47 AM EDTMesoscale DiscussionSPCAthens, Butler, Champaign, Clark, Clermont, Clinton and 21 more118 min
Aug 27, 12:52 PM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Fairfield, Fayette, Franklin and 15 more113 min
Aug 27, 2:05 PM EDTSevere Thunderstorm WatchSPCAthens, Belmont, Coshocton, Gallia, Guernsey, Harrison and 10 more5 hr
Aug 27, 11:48 AM EDTMesoscale DiscussionSPCAdams, Allegheny, Beaver, Bedford, Cambria, Columbia and 18 more87 min

Nearby

Severe Thunderstorm Watches in West Virginia, 2003Severe Thunderstorm Watches in Virginia, 2003Severe Thunderstorm Watches in Pennsylvania, 2003Every severe thunderstorm watch 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.