Alert archive / Maryland / Wind Advisories in 2021
Wind Advisory 12, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Nov 26, 2021, 1:48 PM EST for 13 counties in Maryland; 9 counties in Virginia. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 26, 2021, 1:48 PM EST (18:48 UTC)
- Expired
- Nov 26, 2021, 4:30 PM EST
- In force
- 3 hr
- Issued by
- NWS Baltimore/Washington
All 22 counties
Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Cecil 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, Arlington County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, Fairfax County, VA, Fauquier County, VA, King George County, VA, Loudoun County, VA, Stafford County, VA
The radar
The Sterling radar (KLWX), 44 km from the middle of the area, began a volume at 18:50 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, 6.8 hours before the alert went out and 37 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
- 1204 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- -183 m²/s²
- 0-3 km storm-relative helicity
- -60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
118 WWUS71 KLWX 261848 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 148 PM EST Fri Nov 26 2021 DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ052>055-057- 501-502-505-506-262300- /O.NEW.KLWX.WI.Y.0012.211126T1848Z-211126T2300Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles- St. Marys-Calvert-Northwest Montgomery- Central and Southeast Montgomery-Northwest Howard- Central and Southeast Howard-Northwest Harford-Southeast Harford- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-King George- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, St. Charles, Waldorf, Lexington Park, California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Falmouth, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 148 PM EST Fri Nov 26 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 PM EST THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of The District of Columbia, central, north central, northeast, northern and southern Maryland and northern Virginia. * WHEN...Until 6 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
1 follow-up statement
139 WWUS71 KLWX 262130 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 430 PM EST Fri Nov 26 2021 DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ052>055-057- 501-502-505-506-262230- /O.CAN.KLWX.WI.Y.0012.000000T0000Z-211126T2300Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles- St. Marys-Calvert-Northwest Montgomery- Central and Southeast Montgomery-Northwest Howard- Central and Southeast Howard-Northwest Harford-Southeast Harford- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-King George- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, St. Charles, Waldorf, Lexington Park, California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Falmouth, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 430 PM EST Fri Nov 26 2021 ...WIND ADVISORY IS CANCELLED... Winds are dropping below criteria and should continue to slowly subside this evening. $$
Nearby
Wind Advisories in Maryland, 2021Wind Advisories in Virginia, 2021Wind Advisories in District of Columbia, 2021Every wind advisory in 2021
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.