Alert archive / Pennsylvania / Mesoscale Discussions in 2004

Mesoscale Discussion 557

May 2, 20045 states

The Storm Prediction Center issued this mesoscale discussion at May 2, 2004, 1:21 PM EDT for 5 states. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued: May 2, 2004, 1:21 PM EDT (17:21 UTC)
Expired: May 2, 2004, 3:15 PM EDT
In force: 114 min
Issued by: the Storm Prediction Center

All 64 counties

Allegany County, MD, Frederick County, MD, Garrett County, MD, Washington County, MD, Allegany County, NY, Cayuga County, NY, Chemung County, NY, Cortland County, NY, Livingston County, NY, Madison County, NY, Onondaga County, NY, Ontario County, NY, Schuyler County, NY, Seneca County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Wayne County, NY, Yates County, NY, Adams County, PA, Bedford County, PA, Blair County, PA, Bradford County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, City of Manassas, VA, City of Manassas Park, VA, City of Winchester, VA, Clarke County, VA, Fauquier County, VA, Frederick County, VA, Loudoun County, VA, Prince William County, VA, Rappahannock County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 147May 2, 3:20 PM EDT

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 2, 3:20 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Frederick, Washington	6 hr
May 2, 5:45 PM EDT	Severe Thunderstorm Watch	SPC	Charles, Prince George's	5 hr
May 2, 5:48 PM EDT	Mesoscale Discussion	SPC	Baltimore, Carroll, Frederick, Howard, Montgomery, Prince George's and 1 more	117 min
May 2, 7:24 PM EDT	Mesoscale Discussion	SPC	Charles, Prince George's	2 hr
May 2, 6:54 PM EDT	Mesoscale Discussion	SPC	Delaware, Orange, Sullivan, Ulster	96 min

Nearby

Mesoscale Discussions in Pennsylvania, 2004 Mesoscale Discussions in New York, 2004 Mesoscale Discussions in Virginia, 2004 Every mesoscale discussion in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.