Alert archive / Virginia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 182, NWS Baltimore/Washington

August 1, 20185 counties in Virginia; Jefferson County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Aug 1, 2018, 7:15 PM EDT for 5 counties in Virginia; Jefferson County, West Virginia. It was in force for 45 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: Aug 1, 2018, 7:15 PM EDT (23:15 UTC)
Expired: Aug 1, 2018, 8:00 PM EDT
In force: 45 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties City of Winchester, VA, Clarke County, VA, Frederick County, VA, Shenandoah County, VA, Warren County, VA, Jefferson County, WV

The radar

The Sterling radar (KLWX), 61 km from the middle of the area, began a volume at 23:19 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 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 Aug 1, 2:40 PM EDT, 4 hours 35 minutes earlier.

Area forecast discussion, Aug 1, 2:40 PM EDT, 4 hours 35 minutes before

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Hazardous weather outlook, Aug 1, 6:15 PM EDT, 1 hour before

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In the hours before

Local storm report, Aug 1, 1:35 PM EDT, 5 hours 40 minutes before

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Local storm report, Aug 1, 2:31 PM EDT, 4 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 PM EDT WED AUG 01 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0215 PM     FLOOD            1 N WOLF TRAP           38.95N  77.28W
08/01/2018                   FAIRFAX            VA   911 CALL CENTER

            BROWNS MILL RD AT BEULAH RD CLOSED DUE TO HIGH WATER.

&&

EVENT NUMBER LWX1801365

SMZ

Local storm report, Aug 1, 2:39 PM EDT, 4 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
239 PM EDT WED AUG 01 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 PM     FLOOD            2 NNE WOLF TRAP         38.97N  77.27W
08/01/2018                   FAIRFAX            VA   DEPT OF HIGHWAYS

            LEIGH MILL RD OVER DIFFICULT RUN BETWEEN TOWLSTON RD
            AND CO RD 5703.

&&

EVENT NUMBER LWX1801366

SMZ

Local storm report, Aug 1, 3:24 PM EDT, 3 hours 51 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
Jul 31, 8:16 PM EDT	Areal Flood Warning	LWX	Albemarle, Greene, Orange	16 hr
Jul 31, 9:44 PM EDT	Areal Flood Warning	LWX	Culpeper, Greene, Madison, Orange	14 hr
Jul 31, 9:45 PM EDT	Small Craft Advisory	LWX		49 hr
Jul 31, 11:14 PM EDT	Flash Flood Watch	LWX	Albemarle, Amherst, Augusta, Culpeper, Greene, Madison and 11 more	72 hr
Jul 31, 11:23 PM EDT	Areal Flood Warning	LWX	Albemarle, Greene, Nelson	14 hr
Aug 1, 12:08 AM EDT	Special Marine Warning	LWX		97 min
Aug 1, 12:40 AM EDT	Flash Flood Warning	LWX	Albemarle, City of Charlottesville	3 hr
Aug 1, 1:24 AM EDT	Areal Flood Warning	LWX	Fauquier, Prince William, City of Manassas, City of Manassas Park	11 hr
Aug 1, 2:22 AM EDT	Areal Flood Warning	LWX	Fairfax, City of Fairfax	9 hr
Aug 1, 4:10 AM EDT	Flash Flood Watch	LWX	Arlington, Clarke, Fairfax, Fauquier, Frederick, Highland and 12 more	3 days
Aug 1, 10:35 AM EDT	Areal Flood Warning	LWX	Fairfax, City of Fairfax	4 hr
Aug 1, 11:43 AM EDT	Areal Flood Warning	LWX	Fauquier, Prince William, City of Manassas, City of Manassas Park	15 hr
Aug 1, 6:25 PM EDT	Areal Flood Warning	LWX	Rockingham, Shenandoah	102 min
Aug 1, 6:47 PM EDT	Areal Flood Warning	LWX	Frederick	2 hr
Aug 1, 12:31 AM EDT	Areal Flood Warning	LWX	Calvert, Saint Mary's	3 hr
Aug 1, 1:28 AM EDT	Areal Flood Warning	LWX	Allegany, Washington	3 hr
Aug 1, 4:27 AM EDT	Areal Flood Warning	LWX	Montgomery	4 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2018 Severe Thunderstorm Warnings in West Virginia, 2018 Every severe thunderstorm warning in 2018

Sources

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