Alert archive / Virginia / Wind Advisories in 2018
Wind Advisory 15, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Nov 27, 2018, 2:03 PM EST for 26 counties in Virginia; 13 counties in Maryland; 8 counties in West Virginia. It took effect at Nov 27, 2018, 7:00 PM EST. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Nov 27, 2018, 2:03 PM EST (19:03 UTC)
- In effect from
- Nov 27, 2018, 7:00 PM EST
- Expired
- Nov 28, 2018, 1:33 PM EST
- In force
- 19 hr
- Issued by
- NWS Baltimore/Washington
All 47 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, Washington County, MD, Albemarle County, VA, Amherst County, VA, Arlington County, VA, Augusta County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Greene County, VA, Highland County, VA, Loudoun County, VA, Madison County, VA, Nelson County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah 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), 48 km from the middle of the area, began a volume at 19:06 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.1 hours before the alert went out and 55 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1231 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Nov 27, 10:12 AM EST, 3 hours 51 minutes earlier.
Area forecast discussion, Nov 27, 10:12 AM EST, 3 hours 51 minutes before
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</html>Hazardous weather outlook, Nov 27, 2:02 PM EST, 1 minute before
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 202 PM EST Tue Nov 27 2018 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-281000- Chesapeake Bay north of Pooles Island MD- Chesapeake Bay from Pooles Island to Sandy Point MD- Chesapeake Bay from Sandy Point to North Beach MD- Chesapeake Bay from North Beach to Drum Point MD- Chesapeake Bay from Drum Point MD to Smith Point VA- Tidal Potomac from Key Bridge to Indian Head MD- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- Patapsco River including Baltimore Harbor- Chester River to Queenstown MD-Eastern Bay- Choptank River to Cambridge MD and the Little Choptank River- Patuxent River to Broomes Island MD- Tangier Sound and the inland waters surrounding Bloodsworth Island-District of Columbia-Southern Baltimore-Prince Georges- Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George- 202 PM EST Tue Nov 27 2018 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and adjacent counties in central Maryland and northern Virginia as well as the District of Columbia. .DAY ONE...This Afternoon and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A Wind Advisory is in effect for the Baltimore and Washington metro areas from 6 AM to 4 PM Wednesday. A Gale Warning is in effect for all the waters Wednesday. It may need to be extended into Wednesday evening for portions of the waters. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053- 055-501>506-281000- Washington-Frederick MD-Carroll-Northern Baltimore- Extreme Western Allegany-Central and Eastern Allegany- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Southern Fauquier-Western Highland- Eastern Highland-Western Loudoun-Eastern Loudoun- Northern Virginia Blue Ridge-Central Virginia Blue Ridge- Hampshire-Morgan-Berkeley-Jefferson-Hardy-Western Grant- Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- 202 PM EST Tue Nov 27 2018 This Hazardous Weather Outlook is for eastern West Virginia, northern and central Virginia, and central and western Maryland with the exception of Garrett County. .DAY ONE...This Afternoon and Tonight A Winter Weather Advisory is in effect for western Grant and western Pendleton counties from 7 PM tonight to 7 AM Wednesday. A Wind Advisory is in effect for the higher elevations beginning at 7 PM tonight. A Wind Chill Advisory goes into effect at 9 PM this evening for western Highland County in western Virginia and western Pendleton County in eastern West Virginia. .DAYS TWO THROUGH SEVEN...Wednesday through Monday The Wind Chill Advisory remains in effect until 10 AM Wednesday. A Wind Advisory is in effect for most areas until 4 PM Wednesday. There is a slight winter storm threat Friday, mainly from light freezing rain west of the Blue Ridge mountains. If the threat materializes, it could cause travel disruptions. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Local storm report, Nov 27, 8:13 AM EST, 5 hours 50 minutes before
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</html>Local storm report, Nov 27, 9:27 AM EST, 4 hours 36 minutes before
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</html>Local storm report, Nov 27, 9:37 AM EST, 4 hours 26 minutes before
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</html>Local storm report, Nov 27, 9:39 AM EST, 4 hours 24 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 27, 2:28 AM EST | Gale Warning | LWX | 39 hr | |
| Nov 27, 3:15 AM EST | Wind Chill Advisory | LWX | Highland | 31 hr |
| Nov 27, 1:02 AM EST | Coastal Flood Advisory | LWX | Saint Mary's | 5 hr |
| Nov 26, 7:39 PM EST | Winter Weather Advisory | LWX | Grant, Pendleton | 11 hr |
| Nov 27, 1:47 PM EST | Winter Weather Advisory | LWX | Grant, Pendleton | 20 hr |
Nearby
Wind Advisories in Virginia, 2018Wind Advisories in Maryland, 2018Wind Advisories in West Virginia, 2018Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.