Alert archive / Virginia / Wind Advisories in 2006

Wind Advisory 8, NWS Baltimore/Washington

September 1, 200614 counties in Virginia; 9 counties in Maryland

NWS Baltimore/Washington issued this wind advisory at Sep 1, 2006, 5:29 AM EDT for 14 counties in Virginia; 9 counties in Maryland. It took effect at Sep 1, 2006, 12:00 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Sep 1, 2006, 5:29 AM EDT (09:29 UTC)
In effect from: Sep 1, 2006, 12:00 PM EDT
Expired: Sep 1, 2006, 10:00 PM EDT
In force: 10 hr
Issued by: NWS Baltimore/Washington

All 23 counties

Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Prince George's County, MD, Saint Mary's County, MD, Arlington County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, Culpeper County, VA, Fairfax County, VA, Greene County, VA, King George County, VA, Madison County, VA, Orange County, VA, Rappahannock County, VA, Spotsylvania County, VA, Stafford County, VA

The radar

The Sterling radar (KLWX), 34 km from the middle of the area, began a volume at 09:29 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, 9.5 hours before the alert went out and 186 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: 2 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 315 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 Sep 1, 4:27 AM EDT, 1 hour 2 minutes earlier.

Area forecast discussion, Sep 1, 4:27 AM EDT, 1 hour 2 minutes before

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Hazardous weather outlook, Aug 31, 9:20 PM EDT, 8 hours 9 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 2:47 PM EDT	Coastal Flood Warning	LWX	Arlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church	24 hr

Nearby

Wind Advisories in Virginia, 2006 Wind Advisories in Maryland, 2006 Every wind advisory in 2006

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.