Alert archive / Virginia / Wind Advisories in 2019

Wind Advisory 12, NWS Baltimore/Washington

February 24, 201929 counties in Virginia; 14 counties in Maryland; 8 counties in West Virginia

NWS Baltimore/Washington issued this wind advisory at Feb 24, 2019, 3:02 AM EST for 29 counties in Virginia; 14 counties in Maryland; 8 counties in West Virginia. It took effect at Feb 24, 2019, 9:58 PM EST. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued: Feb 24, 2019, 3:02 AM EST (08:02 UTC)
In effect from: Feb 24, 2019, 9:58 PM EST
Expired: Feb 25, 2019, 5:24 PM EST
In force: 19 hr
Issued by: NWS Baltimore/Washington

All 51 counties

Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington County, MD, Albemarle County, VA, Amherst County, VA, Arlington County, VA, Augusta County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Greene County, VA, Highland County, VA, King George County, VA, Loudoun County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Spotsylvania County, VA, Stafford 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, Pendleton County, WV

The radar

The Sterling radar (KLWX), 40 km from the middle of the area, began a volume at 08:02 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.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.0 hours before the alert went out and 237 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 443 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 477 m²/s²
0-3 km storm-relative helicity: 871 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind 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 wind advisory went out at Feb 23, 8:48 PM EST, 6 hours 14 minutes earlier.

Area forecast discussion, Feb 23, 8:48 PM EST, 6 hours 14 minutes before

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Hazardous weather outlook, Feb 24, 1:01 AM EST, 2 hours 1 minute before

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In the hours before

Special weather statement, Feb 23, 11:49 PM EST, 3 hours 13 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
Feb 24, 9:31 AM EST	River Flood Watch	LWX	Loudoun	12 hr
Feb 24, 9:33 AM EST	River Flood Watch	LWX	Washington	25 hr
Feb 24, 3:09 AM EST	River Flood Watch	LWX	Hampshire, Hardy	6 hr
Feb 24, 9:25 AM EST	River Flood Warning	LWX	Hampshire, Hardy	12 hr
Feb 24, 9:26 AM EST	River Flood Warning	LWX	Berkeley, Jefferson	16 hr
Feb 24, 1:58 PM EST	Areal Flood Warning	LWX	Mineral	12 hr

Nearby

Wind Advisories in Virginia, 2019 Wind Advisories in Maryland, 2019 Wind Advisories in West Virginia, 2019 Every wind advisory in 2019

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.