Alert archive / Virginia / Wind Advisories in 2021

Wind Advisory 8, NWS Baltimore/Washington

April 29, 202130 counties in Virginia; 14 counties in Maryland; 5 counties in West Virginia

NWS Baltimore/Washington issued this wind advisory at Apr 29, 2021, 8:18 PM EDT for 30 counties in Virginia; 14 counties in Maryland; 5 counties in West Virginia. It took effect at Apr 30, 2021, 10:00 AM EDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Apr 29, 2021, 8:18 PM EDT (00:18 UTC)
In effect from
Apr 30, 2021, 10:00 AM EDT
Expired
May 1, 2021, 2:00 AM EDT
In force
16 hr
Issued by
NWS Baltimore/Washington
All 49 counties

Allegany County, MD, 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, 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 Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, 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, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Stafford County, VA, Warren County, VA, Grant County, WV, Hampshire County, WV, Hardy County, WV, Mineral County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 46 km from the middle of the area, began a volume at 00:18 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 00:00Z, 0.3 hours before the alert went out and 51 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-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2021-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 277 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2021-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
277 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1638 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

994 
WWUS71 KLWX 300018
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
818 PM EDT Thu Apr 29 2021

MDZ003>006-008-011-014-503-505>508-VAZ505-WVZ051>053-300830-
/O.UPG.KLWX.HW.A.0002.210430T1500Z-210501T0900Z/
/O.NEW.KLWX.HW.W.0002.210430T1600Z-210501T0600Z/
Washington-Frederick MD-Carroll-Northern Baltimore-Cecil-
Southern Baltimore-Anne Arundel-Northwest Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Western Loudoun-Morgan-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, 
Baltimore, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Germantown, Damascus, Lisbon, 
Columbia, Ellicott City, Jarrettsville, Aberdeen, Purcellville, 
Paw Paw, Martinsburg, Charles Town, and Shepherdstown
818 PM EDT Thu Apr 29 2021

...HIGH WIND WARNING IN EFFECT FROM NOON FRIDAY TO 2 AM EDT
SATURDAY...

* WHAT...Northwest winds 20 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Portions of northern and central Maryland, the Baltimore
  Metropolitan area, portions of the eastern West Virginia
  Panhandle, and western Loudoun County in northern Virginia. 

* WHEN...From noon Friday to 2 AM EDT Saturday. The strongest
  winds are most likely late Friday afternoon through Friday
  evening. 

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ503-WVZ501-505-300830-
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0000Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Western Highland-Western Grant-Western Pendleton-
Including the cities of Hightown, Bayard, Mount Storm, 
and Riverton
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT FRIDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 55 mph expected. For the Freeze Watch, sub- 
  freezing temperatures as low as 31 possible.

* WHERE...In Virginia, Western Highland County. In West 
  Virginia, Western Grant and Western Pendleton Counties.

* WHEN...For the Wind Advisory, from 10 AM to 8 PM EDT Friday. 
  For the Freeze Watch, from late Friday night through Saturday 
  morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MDZ001-300830-
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0200Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Garrett-
Including the cities of Mountain Lake Park, Oakland, 
and Grantsville
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT FRIDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 55 mph expected. For the Freeze Watch, sub-freezing
  temperatures as low as 31 possible.

* WHERE...Garrett County.

* WHEN...For the Wind Advisory, from 10 AM to 10 PM EDT Friday. 
  For the Freeze Watch, from late Friday night through Saturday 
  morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

VAZ030-300830-
/O.UPG.KLWX.HW.A.0002.210430T1500Z-210501T0900Z/
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0000Z/
Warren-
Including the city of Front Royal
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT FRIDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...Warren County.

* WHEN...From 10 AM to 8 PM EDT Friday.

* 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.

&&

$$

DCZ001-MDZ013-504-VAZ053-054-506-300830-
/O.UPG.KLWX.HW.A.0002.210430T1500Z-210501T0900Z/
/O.NEW.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
District of Columbia-Prince Georges-
Central and Southeast Montgomery-Fairfax-
Arlington/Falls Church/Alexandria-Eastern Loudoun-
Including the cities of Washington, Bowie, Suitland-Silver Hill, 
Clinton, College Park, Greenbelt, Laurel, Camp Springs, Bethesda,
Rockville, Gaithersburg, Silver Spring, Reston, Herndon, 
Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, 
Alexandria, Falls Church, Leesburg, Ashburn, and Sterling
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM NOON FRIDAY TO 2 AM EDT
SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...In Maryland, Prince Georges and Central and Southeast 
  Montgomery Counties. In District of Columbia, District of 
  Columbia. In Virginia, Fairfax and Eastern Loudoun Counties, 
  and Arlington/Falls Church/Alexandria.

* WHEN...From noon Friday to 2 AM EDT Saturday. The strongest
  winds are most likely late Friday afternoon through Friday
  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.

&&

$$

VAZ028-031-300830-
/O.UPG.KLWX.HW.A.0002.210430T1500Z-210501T0900Z/
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0200Z/
Frederick VA-Clarke-
Including the cities of Winchester and Berryville
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT FRIDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...Frederick VA and Clarke Counties.

* WHEN...From 10 AM to 10 PM EDT Friday.

* 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.

&&

$$

VAZ507-508-300830-
/O.UPG.KLWX.HW.A.0002.210430T1500Z-210501T0900Z/
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0600Z/
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Including the cities of Big Meadows and Wintergreen
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 2 AM EDT
SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...Northern Virginia Blue Ridge and Central Virginia Blue 
  Ridge.

* WHEN...From 10 AM Friday to 2 AM EDT Saturday.

* 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.

&&

$$

VAZ025>027-029-504-WVZ055-502-506-300830-
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0000Z/
Augusta-Rockingham-Shenandoah-Page-Eastern Highland-Hardy-
Eastern Grant-Eastern Pendleton-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Monterey, Moorefield, Petersburg, 
Brandywine, Franklin, Oak Flat, Ruddle, and Sugar Grove
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT FRIDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...In Virginia, Augusta, Rockingham, Shenandoah, Page and 
  Eastern Highland Counties. In West Virginia, Hardy, Eastern 
  Grant and Eastern Pendleton Counties.

* WHEN...From 10 AM to 8 PM EDT Friday.

* 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.

&&

$$

MDZ016>018-VAZ040-051-052-055-501-502-300830-
/O.NEW.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
Charles-St. Marys-Calvert-Rappahannock-Culpeper-
Prince William/Manassas/Manassas Park-Stafford-Northern Fauquier-
Southern Fauquier-
Including the cities of St. Charles, Waldorf, Lexington Park, 
California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, 
Lusby, Prince Frederick, Washington, Culpeper, Dale City, 
Manassas, Woodbridge, Lake Ridge, Montclair, Falmouth, Warrenton,
and Turnbull
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM NOON FRIDAY TO 2 AM EDT
SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...In Maryland, Charles, St. Marys and Calvert Counties. 
  In Virginia, Rappahannock, Culpeper, Prince 
  William/Manassas/Manassas Park, Stafford, Northern Fauquier 
  and Southern Fauquier Counties.

* WHEN...From noon Friday to 2 AM EDT Saturday.

* 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.

&&

$$

MDZ501-502-WVZ050-503-504-300830-
/O.NEW.KLWX.WI.Y.0008.210430T1400Z-210501T0200Z/
Extreme Western Allegany-Central and Eastern Allegany-Hampshire-
Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Romney, 
Elk Garden, Antioch, Keyser, New Creek, Ridgeville, Russelldale, 
Headsville, and Fort Ashby
818 PM EDT Thu Apr 29 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 10 PM EDT FRIDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...In Maryland, Extreme Western Allegany and Central and 
  Eastern Allegany Counties. In West Virginia, Hampshire, 
  Western Mineral and Eastern Mineral Counties.

* WHEN...From 10 AM to 10 PM EDT Friday.

* 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.

&&

$$
6 follow-up statements
519 
WWUS71 KLWX 300658
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
258 AM EDT Fri Apr 30 2021

MDZ003>006-008-011-014-503-505>508-VAZ505-WVZ051>053-301500-
/O.CON.KLWX.HW.W.0002.210430T1600Z-210501T0600Z/
Washington-Frederick MD-Carroll-Northern Baltimore-Cecil-
Southern Baltimore-Anne Arundel-Northwest Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Western Loudoun-Morgan-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, 
Baltimore, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Germantown, Damascus, Lisbon, 
Columbia, Ellicott City, Jarrettsville, Aberdeen, Purcellville, 
Paw Paw, Martinsburg, Charles Town, and Shepherdstown
258 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM NOON TODAY TO 2 AM
EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Portions of central, north central, northeast and 
  northern Maryland, northern Virginia and panhandle West 
  Virginia.

* WHEN...From noon today to 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ503-WVZ501-505-301500-
/O.EXT.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Western Highland-Western Grant-Western Pendleton-
Including the cities of Hightown, Bayard, Mount Storm, 
and Riverton
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 1 AM
EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph 
  with gusts up to 50 mph expected. For the Freeze Watch, sub-
  freezing temperatures as low as 31 possible.

* WHERE...In Virginia, Western Highland County. In West 
  Virginia, Western Grant and Western Pendleton Counties.

* WHEN...For the Wind Advisory, from 10 AM this morning to 1 AM 
  EDT Saturday. For the Freeze Watch, from late tonight through 
  Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MDZ001-301500-
/O.EXT.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Garrett-
Including the cities of Mountain Lake Park, Oakland, 
and Grantsville
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 1 AM
EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 25 mph 
  with gusts up to 50 mph expected. For the Freeze Watch, sub-
  freezing temperatures as low as 32 possible.

* WHERE...Garrett County.

* WHEN...For the Wind Advisory, from 10 AM this morning to 1 AM 
  EDT Saturday. For the Freeze Watch, from late tonight through 
  Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

VAZ025>027-029-030-504-WVZ055-502-506-301500-
/O.EXT.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Eastern Highland-Hardy-
Eastern Grant-Eastern Pendleton-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, Monterey, Moorefield, 
Petersburg, Brandywine, Franklin, Oak Flat, Ruddle, 
and Sugar Grove
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 1 AM
EDT SATURDAY...

* WHAT...Northwest winds 20 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...In Virginia, Page, Augusta, Shenandoah, Rockingham, 
  Warren and Eastern Highland Counties. In West Virginia, Hardy, 
  Eastern Grant and Eastern Pendleton Counties.

* WHEN...From 10 AM this morning to 1 AM EDT Saturday.

* 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.

&&

$$

MDZ501-502-VAZ028-031-WVZ050-503-504-301500-
/O.EXT.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
Extreme Western Allegany-Central and Eastern Allegany-
Frederick VA-Clarke-Hampshire-Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Winchester, 
Berryville, Romney, Elk Garden, Antioch, Keyser, New Creek, 
Ridgeville, Russelldale, Headsville, and Fort Ashby
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 1 AM
EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph 
  expected.

* WHERE...In Maryland, Extreme Western Allegany and Central and 
  Eastern Allegany Counties. In Virginia, Clarke and Frederick 
  VA Counties. In West Virginia, Western Mineral, Eastern 
  Mineral and Hampshire Counties.

* WHEN...From 10 AM this morning to 1 AM EDT Saturday.

* 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.

&&

$$

DCZ001-MDZ013-016>018-504-VAZ040-051>055-501-502-506-301500-
/O.CON.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
District of Columbia-Prince Georges-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Rappahannock-Culpeper-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Northern Fauquier-
Southern Fauquier-Eastern Loudoun-
Including the cities of Washington, Bowie, Suitland-Silver Hill, 
Clinton, College Park, Greenbelt, Laurel, Camp Springs, 
St. Charles, Waldorf, Lexington Park, California, 
Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, 
Prince Frederick, Bethesda, Rockville, Gaithersburg, 
Silver Spring, Culpeper, Dale City, Manassas, Woodbridge, 
Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, 
Chantilly, McLean, Franconia, Arlington, Alexandria, 
Falls Church, Falmouth, Warrenton, Turnbull, Leesburg, Ashburn, 
and Sterling
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 2 AM EDT
SATURDAY...

* WHAT...Northwest winds 20 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of The District of Columbia, central and 
  southern Maryland and northern and northwest Virginia. 

* WHEN...From noon today to 2 AM EDT Saturday.

* 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.

&&

$$

VAZ507-508-301500-
/O.CON.KLWX.WI.Y.0008.210430T1400Z-210501T0600Z/
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Including the cities of Big Meadows and Wintergreen
258 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
2 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Central Virginia Blue Ridge and Northern Virginia Blue 
  Ridge.

* WHEN...From 10 AM this morning to 2 AM EDT Saturday.

* 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.

&&

$$
781 
WWUS71 KLWX 301340
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
940 AM EDT Fri Apr 30 2021

VAZ507-508-302145-
/O.UPG.KLWX.WI.Y.0008.210430T1400Z-210501T0600Z/
/O.EXB.KLWX.HW.W.0002.210430T1400Z-210501T0600Z/
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Including the cities of Big Meadows and Wintergreen
940 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph.

* WHERE...Central and Northern Virginia Blue Ridge.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will likely
  aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

DCZ001-MDZ013-504-VAZ053-054-506-302145-
/O.UPG.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
/O.EXA.KLWX.HW.W.0002.210430T1600Z-210501T0600Z/
District of Columbia-Prince Georges-
Central and Southeast Montgomery-Fairfax-
Arlington/Falls Church/Alexandria-Eastern Loudoun-
Including the cities of Washington, Bowie, Suitland-Silver Hill, 
Clinton, College Park, Greenbelt, Laurel, Camp Springs, Bethesda,
Rockville, Gaithersburg, Silver Spring, Reston, Herndon, 
Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, 
Alexandria, Falls Church, Leesburg, Ashburn, and Sterling
940 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...The District of Columbia, Central and Southeast
  Montgomery and Prince Georges Counties in Maryland, and 
  Arlington, Eastern Loudoun, and Fairfax Counties in Virginia 
  including the independent cities of Alexandria, Fairfax, and 
  Falls Church.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will likely
  aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MDZ003>006-008-011-014-503-505>508-VAZ505-WVZ051>053-302145-
/O.CON.KLWX.HW.W.0002.210430T1600Z-210501T0600Z/
Washington-Frederick MD-Carroll-Northern Baltimore-Cecil-
Southern Baltimore-Anne Arundel-Northwest Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Western Loudoun-Morgan-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, 
Baltimore, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Germantown, Damascus, Lisbon, 
Columbia, Ellicott City, Jarrettsville, Aberdeen, Purcellville, 
Paw Paw, Martinsburg, Charles Town, and Shepherdstown
940 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Portions of central and northern Maryland including the
  City of Baltimore, northern Virginia, and the eastern panhandle
  of West Virginia.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will likely
  aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ036>039-057-302145-
/O.EXA.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
Nelson-Albemarle-Greene-Madison-King George-
Including the cities of Lovingston, Charlottesville, 
Stanardsville, Madison, and Dahlgren
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Nelson, Albemarle, Greene, Madison and King George
  Counties, including the independent city of Charlottesville.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

VAZ503-WVZ501-505-302145-
/O.CON.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Western Highland-Western Grant-Western Pendleton-
Including the cities of Hightown, Bayard, Mount Storm, 
and Riverton
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 55 mph. For the Freeze Watch, sub- freezing  
  temperatures as low as 31 possible.

* WHERE...In Virginia, Western Highland County. In West 
  Virginia, Western Grant and Western Pendleton Counties.

* WHEN...For the Wind Advisory, until 1 AM EDT Saturday. For the 
  Freeze Watch, from late tonight through Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions could kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MDZ001-302145-
/O.CON.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Garrett-
Including the cities of Mountain Lake Park, Oakland, 
and Grantsville
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 55 mph. For the Freeze Watch, sub- freezing 
  temperatures as low as 32 possible.

* WHERE...Garrett County.

* WHEN...For the Wind Advisory, until 1 AM EDT Saturday. For the 
  Freeze Watch, from late tonight through Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions could kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

* ADDITIONAL DETAILS...The long duration of wind will likely aid
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

VAZ025>027-029-030-504-WVZ055-502-506-302145-
/O.CON.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Eastern Highland-Hardy-
Eastern Grant-Eastern Pendleton-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, Monterey, Moorefield, 
Petersburg, Brandywine, Franklin, Oak Flat, Ruddle, 
and Sugar Grove
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph.

* WHERE...In Virginia, Augusta, Page, Shenandoah, Rockingham,
  Warren and Eastern Highland Counties, including the independent
  cities of Harrisonburg, Staunton, and Waynesboro. In West 
  Virginia, Eastern Grant, Eastern Pendleton and Hardy Counties.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MDZ016>018-VAZ040-051-052-055-501-502-302145-
/O.CON.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
Charles-St. Marys-Calvert-Rappahannock-Culpeper-
Prince William/Manassas/Manassas Park-Stafford-Northern Fauquier-
Southern Fauquier-
Including the cities of St. Charles, Waldorf, Lexington Park, 
California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, 
Lusby, Prince Frederick, Washington, Culpeper, Dale City, 
Manassas, Woodbridge, Lake Ridge, Montclair, Falmouth, Warrenton,
and Turnbull
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph.

* WHERE...In Maryland, Charles, Saint Mary's and Calvert Counties.
  In Virginia, Fauquier, Rappahannock, Stafford, Culpeper and
  Prince William Counties, including the independent cities of
  Fredericksburg, Manassas, and Manassas Park.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MDZ501-502-VAZ028-031-WVZ050-503-504-302145-
/O.CON.KLWX.WI.Y.0008.210430T1400Z-210501T0500Z/
Extreme Western Allegany-Central and Eastern Allegany-
Frederick VA-Clarke-Hampshire-Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Winchester, 
Berryville, Romney, Elk Garden, Antioch, Keyser, New Creek, 
Ridgeville, Russelldale, Headsville, and Fort Ashby
940 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mp.

* WHERE...In Maryland, Allegany County. In Virginia, Clarke and
  Frederick Counties including the independent city of Winchester.
  In West Virginia, Hampshire and Mineral.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DHOF
635 
WWUS71 KLWX 301506
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1106 AM EDT Fri Apr 30 2021

MDZ501-502-VAZ504-WVZ502>504-506-302315-
/O.UPG.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
/O.EXB.KLWX.HW.W.0002.210430T1506Z-210501T0500Z/
Extreme Western Allegany-Central and Eastern Allegany-
Eastern Highland-Eastern Grant-Western Mineral-Eastern Mineral-
Eastern Pendleton-
Including the cities of Frostburg, Cumberland, Monterey, 
Petersburg, Elk Garden, Antioch, Keyser, New Creek, Ridgeville, 
Russelldale, Headsville, Fort Ashby, Brandywine, Franklin, 
Oak Flat, Ruddle, and Sugar Grove
1106 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...In Maryland, Allegany County. In Virginia, Eastern
  Highland County. In West Virginia, Eastern Grant, Eastern 
  Pendleton, and Mineral Counties.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

DCZ001-MDZ003>006-008-011-013-014-503>508-VAZ053-054-505-506-
WVZ051>053-302315-
/O.CON.KLWX.HW.W.0002.210430T1600Z-210501T0600Z/
District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Cecil-Southern Baltimore-Prince Georges-
Anne Arundel-Northwest Montgomery-
Central and Southeast Montgomery-Northwest Howard-
Central and Southeast Howard-Northwest Harford-Southeast Harford-
Fairfax-Arlington/Falls Church/Alexandria-Western Loudoun-
Eastern Loudoun-Morgan-Berkeley-Jefferson-
Including the cities of Washington, Hagerstown, 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, Germantown, Damascus, Bethesda, Rockville, Gaithersburg,
Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, 
Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, 
McLean, Franconia, Arlington, Alexandria, Falls Church, 
Purcellville, Leesburg, Ashburn, Sterling, Paw Paw, Martinsburg, 
Charles Town, and Shepherdstown
1106 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...The District of Columbia, Central and Southeast 
  Montgomery and Prince Georges Counties in Maryland, and 
  Arlington, Eastern Loudoun, and Fairfax Counties in Virginia 
  including the independent cities of Alexandria, Fairfax, and 
  Falls Church.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will 
  likely aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ507-508-302315-
/O.CON.KLWX.HW.W.0002.000000T0000Z-210501T0600Z/
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Including the cities of Big Meadows and Wintergreen
1106 AM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph.

* WHERE...Central and Northern Virginia Blue Ridge.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will 
  likely aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ503-WVZ501-505-302315-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Western Highland-Western Grant-Western Pendleton-
Including the cities of Hightown, Bayard, Mount Storm, 
and Riverton
1106 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph 
  with gusts up to 55 mph. For the Freeze Watch, sub- freezing 
  temperatures as low as 31 possible.

* WHERE...In Virginia, Western Highland County. In West 
  Virginia, Western Grant and Western Pendleton Counties.

* WHEN...For the Wind Advisory, until 1 AM EDT Saturday. For the 
  Freeze Watch, from late tonight through Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions could kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MDZ001-302315-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
/O.CON.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
Garrett-
Including the cities of Mountain Lake Park, Oakland, 
and Grantsville
1106 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 55 mph. For the Freeze Watch, sub-freezing 
  temperatures as low as 32 possible.

* WHERE...Garrett County.

* WHEN...For the Wind Advisory, until 1 AM EDT Saturday. For the 
  Freeze Watch, from late tonight through Saturday morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

VAZ025>027-029-030-WVZ055-302315-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Hardy-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, and Moorefield
1106 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph.

* WHERE...In Virginia, Augusta, Page, Shenandoah, Rockingham, and
  Warren Counties, including the independent cities of 
  Harrisonburg, Staunton, and Waynesboro. In West Virginia, Hardy 
  County.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MDZ016>018-VAZ036>040-051-052-055-057-501-502-302315-
/O.CON.KLWX.WI.Y.0008.210430T1600Z-210501T0600Z/
Charles-St. Marys-Calvert-Nelson-Albemarle-Greene-Madison-
Rappahannock-Culpeper-Prince William/Manassas/Manassas Park-
Stafford-King George-Northern Fauquier-Southern Fauquier-
Including the cities of St. Charles, Waldorf, Lexington Park, 
California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, 
Lusby, Prince Frederick, Lovingston, Charlottesville, 
Stanardsville, Madison, Washington, Culpeper, Dale City, 
Manassas, Woodbridge, Lake Ridge, Montclair, Falmouth, Dahlgren, 
Warrenton, and Turnbull
1106 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central and northern Virginia and southern
  Maryland.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

VAZ028-031-WVZ050-302315-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Frederick VA-Clarke-Hampshire-
Including the cities of Winchester, Berryville, and Romney
1106 AM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mp.

* WHERE...In Virginia, Clarke and Frederick Counties including the
  independent city of Winchester. In West Virginia, Hampshire
  County.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DHOF
963 
WWUS71 KLWX 301629
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1229 PM EDT Fri Apr 30 2021

VAZ503-WVZ501-505-010030-
/O.UPG.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
/O.NEW.KLWX.FZ.W.0003.210501T0400Z-210501T1300Z/
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Western Highland-Western Grant-Western Pendleton-
Including the cities of Hightown, Bayard, Mount Storm, 
and Riverton
1229 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 31 expected. For the Wind Advisory, northwest winds 20 to 30
  mph with gusts up to 55 mph.

* WHERE...In Virginia, Western Highland County. In West 
  Virginia, Western Grant and Western Pendleton Counties.

* WHEN...For the Freeze Warning, from midnight tonight to 9 AM 
  EDT Saturday. For the Wind Advisory, until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions will kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MDZ001-010030-
/O.UPG.KLWX.FZ.A.0003.210501T0400Z-210501T1300Z/
/O.NEW.KLWX.FZ.W.0003.210501T0400Z-210501T1300Z/
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Garrett-
Including the cities of Mountain Lake Park, Oakland, 
and Grantsville
1229 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 32 expected. For the Wind Advisory, northwest winds 20 to 30 
  mph with gusts up to 55 mph.

* WHERE...Garrett County.

* WHEN...For the Freeze Warning, from midnight tonight to 9 AM 
  EDT Saturday. For the Wind Advisory, until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions will kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

DCZ001-MDZ003>006-008-011-013-014-503>508-VAZ053-054-505-506-
WVZ051>053-010030-
/O.CON.KLWX.HW.W.0002.000000T0000Z-210501T0600Z/
District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Cecil-Southern Baltimore-Prince Georges-
Anne Arundel-Northwest Montgomery-
Central and Southeast Montgomery-Northwest Howard-
Central and Southeast Howard-Northwest Harford-Southeast Harford-
Fairfax-Arlington/Falls Church/Alexandria-Western Loudoun-
Eastern Loudoun-Morgan-Berkeley-Jefferson-
Including the cities of Washington, Hagerstown, 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, Germantown, Damascus, Bethesda, Rockville, Gaithersburg,
Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, 
Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, 
McLean, Franconia, Arlington, Alexandria, Falls Church, 
Purcellville, Leesburg, Ashburn, Sterling, Paw Paw, Martinsburg, 
Charles Town, and Shepherdstown
1229 PM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...The District of Columbia, Central and Southeast 
  Montgomery and Prince Georges Counties in Maryland, and 
  Arlington, Eastern Loudoun, and Fairfax Counties in Virginia 
  including the independent cities of Alexandria, Fairfax, and 
  Falls Church.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will 
  likely aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MDZ501-502-VAZ504-WVZ502>504-506-010030-
/O.CON.KLWX.HW.W.0002.000000T0000Z-210501T0500Z/
Extreme Western Allegany-Central and Eastern Allegany-
Eastern Highland-Eastern Grant-Western Mineral-Eastern Mineral-
Eastern Pendleton-
Including the cities of Frostburg, Cumberland, Monterey, 
Petersburg, Elk Garden, Antioch, Keyser, New Creek, Ridgeville, 
Russelldale, Headsville, Fort Ashby, Brandywine, Franklin, 
Oak Flat, Ruddle, and Sugar Grove
1229 PM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 60 mph.

* WHERE...In Maryland, Allegany County. In Virginia, Eastern 
  Highland County. In West Virginia, Eastern Grant, Eastern 
  Pendleton, and Mineral Counties.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ507-508-010030-
/O.CON.KLWX.HW.W.0002.000000T0000Z-210501T0600Z/
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Including the cities of Big Meadows and Wintergreen
1229 PM EDT Fri Apr 30 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 65 mph.

* WHERE...Central and Northern Virginia Blue Ridge.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...The long duration of high wind will 
  likely aid in widespread tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

VAZ025>027-029-030-WVZ055-010030-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Hardy-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, and Moorefield
1229 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph.

* WHERE...In Virginia, Augusta, Page, Shenandoah, Rockingham, 
  and Warren Counties, including the independent cities of 
  Harrisonburg, Staunton, and Waynesboro. In West Virginia, 
  Hardy County.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down. A few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

MDZ016>018-VAZ036>040-051-052-055-057-501-502-010030-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0600Z/
Charles-St. Marys-Calvert-Nelson-Albemarle-Greene-Madison-
Rappahannock-Culpeper-Prince William/Manassas/Manassas Park-
Stafford-King George-Northern Fauquier-Southern Fauquier-
Including the cities of St. Charles, Waldorf, Lexington Park, 
California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, 
Lusby, Prince Frederick, Lovingston, Charlottesville, 
Stanardsville, Madison, Washington, Culpeper, Dale City, 
Manassas, Woodbridge, Lake Ridge, Montclair, Falmouth, Dahlgren, 
Warrenton, and Turnbull
1229 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 15 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central and northern Virginia and southern 
  Maryland.

* WHEN...Until 2 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

VAZ028-031-WVZ050-010030-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Frederick VA-Clarke-Hampshire-
Including the cities of Winchester, Berryville, and Romney
1229 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EDT SATURDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mp.

* WHERE...In Virginia, Clarke and Frederick Counties including 
  the independent city of Winchester. In West Virginia, 
  Hampshire County.

* WHEN...Until 1 AM EDT Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down. A few power outages may result.

* ADDITIONAL DETAILS...The long duration of wind will likely aid 
  in numerous instances of tree damage and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

DHOF
465 
WWUS71 KLWX 010050
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
850 PM EDT Fri Apr 30 2021

DCZ001-MDZ004>006-008-011-013-014-503>508-VAZ053-054-505-506-
010600-
/O.CAN.KLWX.HW.W.0002.000000T0000Z-210501T0600Z/
/O.EXA.KLWX.WI.Y.0008.000000T0000Z-210501T0600Z/
District of Columbia-Frederick MD-Carroll-Northern Baltimore-
Cecil-Southern Baltimore-Prince Georges-Anne Arundel-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria-
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, Germantown, Damascus, 
Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, 
Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, Falls Church, Purcellville, Leesburg, 
Ashburn, and Sterling
850 PM EDT Fri Apr 30 2021

...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...
...HIGH WIND WARNING IS CANCELLED...

* WHAT...Northwest winds around 20 mph with gusts up to 50 mph.

* WHERE...Portions of The District of Columbia, central, north 
  central, northeast and northern Maryland and northern 
  Virginia. 

* WHEN...Until 2 AM EDT Saturday.

* 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.

&&

$$

MDZ003-VAZ507-508-WVZ051>053-010200-
/O.CAN.KLWX.HW.W.0002.000000T0000Z-210501T0600Z/
Washington-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Morgan-Berkeley-Jefferson-
Including the cities of Hagerstown, Big Meadows, Wintergreen, 
Paw Paw, Martinsburg, Charles Town, and Shepherdstown
850 PM EDT Fri Apr 30 2021

...HIGH WIND WARNING IS CANCELLED...

Winds have diminished considerably.

$$

MDZ501-502-VAZ504-WVZ502>504-506-010200-
/O.CAN.KLWX.HW.W.0002.000000T0000Z-210501T0500Z/
Extreme Western Allegany-Central and Eastern Allegany-
Eastern Highland-Eastern Grant-Western Mineral-Eastern Mineral-
Eastern Pendleton-
Including the cities of Frostburg, Cumberland, Monterey, 
Petersburg, Elk Garden, Antioch, Keyser, New Creek, Ridgeville, 
Russelldale, Headsville, Fort Ashby, Brandywine, Franklin, 
Oak Flat, Ruddle, and Sugar Grove
850 PM EDT Fri Apr 30 2021

...HIGH WIND WARNING IS CANCELLED...

Winds have diminished considerably.

$$

MDZ001-VAZ503-WVZ501-505-010900-
/O.CAN.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
/O.CON.KLWX.FZ.W.0003.210501T0400Z-210501T1300Z/
Garrett-Western Highland-Western Grant-Western Pendleton-
Including the cities of Mountain Lake Park, Oakland, Grantsville,
Hightown, Bayard, Mount Storm, and Riverton
850 PM EDT Fri Apr 30 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
EDT SATURDAY...
...WIND ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...In Maryland, Garrett County. In Virginia, Western 
  Highland County. In West Virginia, Western Grant and Western 
  Pendleton Counties.

* WHEN...From midnight tonight to 9 AM EDT Saturday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

VAZ036>040-051-010200-
/O.CAN.KLWX.WI.Y.0008.000000T0000Z-210501T0600Z/
Nelson-Albemarle-Greene-Madison-Rappahannock-Culpeper-
Including the cities of Lovingston, Charlottesville, 
Stanardsville, Madison, Washington, and Culpeper
850 PM EDT Fri Apr 30 2021

...WIND ADVISORY IS CANCELLED...

Winds have diminished considerably.

$$

VAZ025>031-WVZ050-055-010200-
/O.CAN.KLWX.WI.Y.0008.000000T0000Z-210501T0500Z/
Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Hampshire-Hardy-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, 
Romney, and Moorefield
850 PM EDT Fri Apr 30 2021

...WIND ADVISORY IS CANCELLED...

Winds have diminished.

$$

MDZ016>018-VAZ052-055-057-501-502-010600-
/O.CON.KLWX.WI.Y.0008.000000T0000Z-210501T0600Z/
Charles-St. Marys-Calvert-Prince William/Manassas/Manassas Park-
Stafford-King George-Northern Fauquier-Southern Fauquier-
Including the cities of St. Charles, Waldorf, Lexington Park, 
California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, 
Lusby, Prince Frederick, Dale City, Manassas, Woodbridge, 
Lake Ridge, Montclair, Falmouth, Dahlgren, Warrenton, 
and Turnbull
850 PM EDT Fri Apr 30 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY...

* WHAT...Northwest winds 15 to 20 mph with gusts up to 45 mph.

* WHERE...In Maryland, Charles, St. Marys and Calvert Counties. 
  In Virginia, Southern Fauquier, Northern Fauquier, Stafford, 
  King George and Prince William/Manassas/Manassas Park Counties.

* WHEN...Until 2 AM EDT Saturday.

* 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.

&&

$$
005 
WWUS71 KLWX 010551
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
151 AM EDT Sat May 1 2021

DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ052>055-057-
501-502-505-506-010700-
/O.EXP.KLWX.WI.Y.0008.000000T0000Z-210501T0600Z/
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
151 AM EDT Sat May 1 2021

...WIND ADVISORY WILL EXPIRE AT 2 AM EDT EARLY THIS MORNING...

Winds have dropped below advisory criteria. However, northwesterly
winds could occasionally gust up to 35 mph at times during the
overnight hours. 

$$

MDZ001-VAZ503-WVZ501-505-011300-
/O.CON.KLWX.FZ.W.0003.000000T0000Z-210501T1300Z/
Garrett-Western Highland-Western Grant-Western Pendleton-
Including the cities of Mountain Lake Park, Oakland, Grantsville,
Hightown, Bayard, Mount Storm, and Riverton
151 AM EDT Sat May 1 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 30.

* WHERE...In Maryland, Garrett County. In Virginia, Western 
  Highland County. In West Virginia, Western Grant and Western 
  Pendleton Counties.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 8:18 PM EDTHigh Wind WarningLWXAlbemarle, Amherst, Arlington, Augusta, Fairfax, Greene and 12 more25 hr
Apr 29, 8:36 PM EDTStorm WarningLWX24 hr
Apr 29, 10:32 PM EDTSpecial Marine WarningLWX99 min
Apr 29, 10:34 PM EDTSpecial Marine WarningLWX116 min
Apr 29, 11:20 PM EDTSpecial Marine WarningLWX115 min
Apr 29, 11:25 PM EDTSpecial Marine WarningLWX2 hr
Apr 29, 11:53 PM EDTSpecial Marine WarningLWX2 hr
Apr 30, 12:09 AM EDTSpecial Marine WarningLWX2 hr
Apr 30, 12:24 PM EDTRed Flag WarningLWXOrange, Spotsylvania, City of Fredericksburg7 hr
Apr 30, 12:29 PM EDTFreeze WarningLWXHighland21 hr
Apr 30, 4:31 PM EDTSevere Thunderstorm WarningLWXLoudoun29 min
Apr 30, 4:36 PM EDTSpecial Marine WarningLWX59 min
Apr 30, 4:38 PM EDTSpecial Marine WarningLWX49 min
Apr 30, 4:39 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, Fauquier, Loudoun, Prince William, City of Alexandria and 4 more36 min
Apr 30, 5:05 PM EDTSpecial Marine WarningLWX45 min
Apr 30, 5:08 PM EDTSpecial Marine WarningLWX54 min
Apr 30, 5:11 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert, Charles, Prince George's, Saint Mary's34 min

Nearby

Wind Advisories in Virginia, 2021Wind Advisories in Maryland, 2021Wind Advisories in West Virginia, 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.