Alert archive / Virginia / Frost Advisories in 2012

Frost Advisory 1, NWS Baltimore/Washington

March 29, 20128 counties in Virginia; 5 counties in Maryland; 5 counties in West Virginia

NWS Baltimore/Washington issued this frost advisory at Mar 29, 2012, 1:58 PM EDT for 8 counties in Virginia; 5 counties in Maryland; 5 counties in West Virginia. It took effect at Mar 30, 2012, 2:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Mar 29, 2012, 1:58 PM EDT (17:58 UTC)
In effect from: Mar 30, 2012, 2:00 AM EDT
Expired: Mar 30, 2012, 9:00 AM EDT
In force: 7 hr
Issued by: NWS Baltimore/Washington

Counties Allegany County, MD, Baltimore County, MD, Carroll County, MD, Frederick County, MD, Washington County, MD, City of Harrisonburg, VA, City of Winchester, VA, Clarke County, VA, Frederick County, VA, Page County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Morgan County, WV

The radar

The Sterling radar (KLWX), 61 km from the middle of the area, began a volume at 18:02 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 frost advisory 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 frost advisory went out at Mar 29, 9:41 AM EDT, 4 hours 17 minutes earlier.

Area forecast discussion, Mar 29, 9:41 AM EDT, 4 hours 17 minutes before

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Hazardous weather outlook, Mar 29, 9:08 AM EDT, 4 hours 50 minutes before

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In the hours before

Special weather statement, Mar 29, 8:52 AM EDT, 5 hours 6 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
Mar 29, 1:39 PM EDT	Small Craft Advisory	LWX		34 hr
Mar 29, 4:10 AM EDT	Freeze Warning	LWX	Allegany	25 hr

Nearby

Frost Advisories in Virginia, 2012 Frost Advisories in Maryland, 2012 Frost Advisories in West Virginia, 2012 Every frost advisory in 2012

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.