Alert archive / Virginia / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 71, NWS Baltimore/Washington

June 4, 2008Spotsylvania County, City of Fredericksburg, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 4, 2008, 2:58 AM EDT for Spotsylvania County, City of Fredericksburg, Virginia. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 4, 2008, 2:58 AM EDT (06:58 UTC)
Expired: Jun 4, 2008, 3:20 AM EDT
In force: 22 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

Counties City of Fredericksburg, VA, Spotsylvania County, VA

The radar

The Sterling radar (KLWX), 82 km from the middle of the area, began a volume at 06:57 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.

Issued	Product	Office	Lasted
Jun 4, 2:26 AM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 7.0 hours before the alert went out and 80 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: 450 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 673 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 77 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 2:47 AM EDT, 11 minutes earlier.

Area forecast discussion, Jun 4, 2:47 AM EDT, 11 minutes before

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Hazardous weather outlook, Jun 4, 1:30 AM EDT, 1 hour 28 minutes before

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In the hours before

Special weather statement, Jun 3, 11:35 PM EDT, 3 hours 23 minutes before

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Special weather statement, Jun 3, 11:47 PM EDT, 3 hours 11 minutes before

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Special weather statement, Jun 4, 12:10 AM EDT, 2 hours 48 minutes before

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Special weather statement, Jun 4, 1:28 AM EDT, 1 hour 30 minutes before

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Special weather statement, Jun 4, 2:45 AM EDT, 13 minutes before

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Special weather statement, Jun 4, 2:50 AM EDT, 8 minutes before

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The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 4, 12:38 AM EDT	Severe Thunderstorm Warning	LWX	Rockingham, Shenandoah	32 min
Jun 4, 1:14 AM EDT	Flash Flood Watch	LWX	Arlington, Clarke, Culpeper, Fairfax, Frederick, Greene and 20 more	8 hr
Jun 4, 1:34 AM EDT	Severe Thunderstorm Warning	LWX	Page, Rockingham, City of Harrisonburg	41 min
Jun 4, 2:00 AM EDT	Severe Thunderstorm Warning	LWX	Greene, Madison	29 min
Jun 4, 2:17 AM EDT	Severe Thunderstorm Warning	LWX	Culpeper, Madison, Orange	35 min
Jun 4, 3:06 AM EDT	Special Marine Warning	LWX		84 min
Jun 4, 3:13 AM EDT	Special Marine Warning	LWX		81 min
Jun 4, 4:00 AM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Augusta, Nelson	60 min
Jun 4, 4:31 AM EDT	Special Marine Warning	LWX		89 min
Jun 4, 1:26 PM EDT	Severe Thunderstorm Warning	LWX	Rockingham, Shenandoah, City of Harrisonburg	64 min
Jun 4, 1:59 PM EDT	Severe Thunderstorm Warning	LWX	Clarke, Fauquier, Frederick, Madison, Page, Rappahannock and 3 more	61 min
Jun 4, 2:15 PM EDT	Tornado Warning	LWX	Clarke, Frederick	29 min
Jun 4, 2:23 PM EDT	Severe Thunderstorm Warning	LWX	Clarke, Culpeper, Fauquier, Loudoun, Madison, Prince William and 1 more	58 min
Jun 4, 2:27 PM EDT	Tornado Warning	LWX	Clarke, Loudoun	29 min
Jun 4, 2:31 PM EDT	Special Marine Warning	LWX		81 min
Jun 4, 2:34 PM EDT	Special Marine Warning	LWX		116 min
Jun 4, 2:42 PM EDT	Tornado Warning	LWX	Fairfax, Fauquier, Loudoun, Prince William	18 min
Jun 4, 2:44 PM EDT	Severe Thunderstorm Warning	LWX	Loudoun	61 min
Jun 4, 2:45 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Fauquier, Loudoun, Prince William, Stafford, City of Fairfax and 2 more	60 min
Jun 4, 2:55 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, Fairfax, Prince William, City of Alexandria, City of Falls Church	80 min
Jun 4, 3:01 PM EDT	Special Marine Warning	LWX		119 min
Jun 4, 3:41 PM EDT	Special Marine Warning	LWX		2 hr
Jun 4, 3:41 PM EDT	Special Marine Warning	LWX		2 hr
Jun 4, 3:43 PM EDT	Special Marine Warning	LWX		2 hr
Jun 4, 4:19 PM EDT	Special Marine Warning	LWX		56 min
Jun 4, 5:17 PM EDT	Severe Thunderstorm Warning	LWX	Culpeper, Madison, Orange	58 min
Jun 4, 5:33 PM EDT	Tornado Warning	LWX	Culpeper, Madison, Orange	27 min
Jun 4, 5:36 PM EDT	Severe Thunderstorm Warning	LWX	Culpeper, Fauquier, Stafford	27 min
Jun 4, 5:54 PM EDT	Tornado Warning	LWX	Culpeper, Fauquier, Orange, Spotsylvania, Stafford	51 min
Jun 4, 6:00 PM EDT	Special Marine Warning	LWX		90 min
Jun 4, 6:07 PM EDT	Severe Thunderstorm Warning	LWX	Arlington	53 min
Jun 4, 6:13 PM EDT	Special Marine Warning	LWX		92 min
Jun 4, 6:17 PM EDT	Special Marine Warning	LWX		118 min
Jun 4, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Augusta, Culpeper, Fauquier, Greene, Madison and 9 more	40 min
Jun 4, 6:23 PM EDT	Tornado Warning	LWX	King George, Spotsylvania, Stafford, City of Fredericksburg	20 min
Jun 4, 6:29 PM EDT	Tornado Warning	LWX	Culpeper, Madison, Orange	46 min
Jun 4, 6:43 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, Fairfax	38 min
Jun 4, 6:46 PM EDT	Special Marine Warning	LWX		119 min
Jun 4, 6:46 PM EDT	Special Marine Warning	LWX		89 min
Jun 4, 6:47 PM EDT	Tornado Warning	LWX	Culpeper, Madison, Page, Rappahannock	28 min
Jun 4, 6:49 PM EDT	Severe Thunderstorm Warning	LWX	Fauquier, Prince William, Stafford	56 min
Jun 4, 6:59 PM EDT	Severe Thunderstorm Warning	LWX	King George	19 min
Jun 4, 7:00 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Culpeper, Fairfax, Fauquier, Madison, Nelson and 7 more	45 min
Jun 4, 7:03 PM EDT	Special Marine Warning	LWX		87 min
Jun 4, 7:08 PM EDT	Tornado Warning	LWX	Fauquier, Stafford	37 min
Jun 4, 7:09 PM EDT	Special Marine Warning	LWX		2 hr
Jun 4, 7:10 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Augusta, Greene, Madison, Nelson, Orange	20 min
Jun 4, 7:16 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Fauquier, Loudoun, Prince William, City of Fairfax, City of Manassas and 1 more	50 min
Jun 4, 7:23 PM EDT	Tornado Warning	LWX	Culpeper, Fauquier, Prince William, Stafford	37 min
Jun 4, 7:33 PM EDT	Special Marine Warning	LWX		117 min
Jun 4, 7:36 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax, Loudoun	39 min
Jun 4, 7:40 PM EDT	Tornado Warning	LWX	Fairfax, King George, Prince William, Stafford	35 min
Jun 4, 7:46 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church	42 min
Jun 4, 7:48 PM EDT	Special Marine Warning	LWX		106 min
Jun 4, 7:49 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Culpeper, King George, Orange, Spotsylvania, Stafford and 1 more	41 min
Jun 4, 7:55 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle	33 min
Jun 4, 3:39 AM EDT	Severe Thunderstorm Warning	LWX	Saint Mary's	36 min
Jun 4, 2:16 PM EDT	Severe Thunderstorm Warning	LWX	Washington	59 min
Jun 4, 3:20 PM EDT	Tornado Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	25 min
Jun 4, 3:29 PM EDT	Tornado Warning	LWX	Anne Arundel, Calvert, Prince George's	21 min
Jun 4, 3:46 PM EDT	Tornado Warning	LWX	Anne Arundel	29 min
Jun 4, 3:59 PM EDT	Severe Thunderstorm Warning	LWX	Harford	50 min
Jun 4, 6:33 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	42 min
Jun 4, 6:41 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	64 min
Jun 4, 7:21 PM EDT	Tornado Warning	LWX	Saint Mary's	54 min
Jun 4, 7:23 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Prince George's	67 min
Jun 4, 1:07 PM EDT	Severe Thunderstorm Warning	LWX	Grant, Pendleton	38 min
Jun 4, 1:53 PM EDT	Tornado Warning	LWX	Morgan	23 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2008 Every severe thunderstorm warning in 2008

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.