Alert archive / Virginia / Wind Advisories in 2020

Wind Advisory 9, NWS Baltimore/Washington

April 9, 20208 counties in West Virginia; 11 counties in Maryland; 26 counties in Virginia

NWS Baltimore/Washington issued this wind advisory at Apr 9, 2020, 7:38 PM EDT for 8 counties in West Virginia; 11 counties in Maryland; 26 counties in Virginia. It took effect at Apr 10, 2020, 6:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 9, 2020, 7:38 PM EDT (23:38 UTC)
In effect from
Apr 10, 2020, 6:00 AM EDT
Expired
Apr 10, 2020, 5:55 PM EDT
In force
12 hr
Issued by
NWS Baltimore/Washington
All 45 counties

Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Carroll 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), 53 km from the middle of the area, began a volume at 23:42 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, 11.6 hours before the alert went out and 59 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 12:00Z on 2020-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2020-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 394 square meters per square second.1939587897117Sfc1 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
20 J/kg
Mixed-layer CIN
-589 J/kg
Mixed-layer LCL
1002 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
394 m²/s²
0-3 km storm-relative helicity
416 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

968 
WWUS71 KLWX 092338
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
738 PM EDT Thu Apr 9 2020

DCZ001-MDZ003>006-011-013-014-503>508-VAZ028-031-053-054-501-505-
506-WVZ052-053-100745-
/O.CAN.KLWX.WI.Y.0008.000000T0000Z-200410T0000Z/
/O.NEW.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
District of Columbia-Washington-Frederick MD-Carroll-
Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Southeast Harford-Frederick VA-Clarke-Fairfax-
Arlington/Falls Church/Alexandria-Northern Fauquier-
Western Loudoun-Eastern Loudoun-Berkeley-Jefferson-
Including the cities of Washington, Hagerstown, Frederick, 
Ballenger Creek, Eldersburg, Westminster, Reisterstown, 
Cockeysville, 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, Winchester, Berryville, Reston, Herndon, Annandale, 
Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria,
Falls Church, Warrenton, Purcellville, Leesburg, Ashburn, 
Sterling, Martinsburg, Charles Town, and Shepherdstown
738 PM EDT Thu Apr 9 2020

...WIND ADVISORY IN EFFECT FROM 10 AM TO 6 PM EDT FRIDAY...
...WIND ADVISORY THIS EVENING IS CANCELLED...

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

* WHERE...Portions of The District of Columbia, central, north 
  central and northern Maryland, northern and northwest Virginia 
  and panhandle West Virginia. 

* WHEN...From 10 AM to 6 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.

&&

$$

MDZ501-502-VAZ025>027-029-030-036>040-052-503-504-507-508-WVZ050-
051-055-501>506-100045-
/O.CAN.KLWX.WI.Y.0008.000000T0000Z-200410T0000Z/
Extreme Western Allegany-Central and Eastern Allegany-Augusta-
Rockingham-Shenandoah-Page-Warren-Nelson-Albemarle-Greene-Madison-
Rappahannock-Prince William/Manassas/Manassas Park-
Western Highland-Eastern Highland-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Hampshire-Morgan-Hardy-Western Grant-
Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
Including the cities of Frostburg, Cumberland, Staunton, 
Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, 
Mount Jackson, New Market, Luray, Shenandoah, Stanley, 
Front Royal, Lovingston, Charlottesville, Stanardsville, Madison,
Washington, Dale City, Manassas, Woodbridge, Lake Ridge, 
Montclair, Hightown, Monterey, Big Meadows, Wintergreen, Romney, 
Paw Paw, Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden,
Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, 
Fort Ashby, Riverton, Brandywine, Franklin, Oak Flat, Ruddle, 
and Sugar Grove
738 PM EDT Thu Apr 9 2020

...WIND ADVISORY THIS EVENING IS CANCELLED...

Winds have diminished.

$$
6 follow-up statements
614 
WWUS71 KLWX 092347
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
747 PM EDT Thu Apr 9 2020

MDZ003>006-503-505-507-VAZ028-031-501-505-WVZ052-053-100800-
/O.NEW.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Frederick VA-Clarke-Northern Fauquier-Western Loudoun-Berkeley-
Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Winchester, Berryville, 
Warrenton, Purcellville, Martinsburg, Charles Town, 
and Shepherdstown
747 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...
...FREEZE WATCH IN EFFECT FROM LATE FRIDAY NIGHT 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...Portions of central, north central and northern 
  Maryland, northern and northwest Virginia and panhandle West 
  Virginia.

* WHEN...For the Wind Advisory, from 10 AM to 6 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.

&&

$$

DCZ001-MDZ011-013-014-504-506-508-VAZ053-054-506-100800-
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-Eastern Loudoun-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Bethesda, Rockville, Gaithersburg,
Silver Spring, Columbia, Ellicott City, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, Falls Church, Leesburg, Ashburn, 
and Sterling
747 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...

* WHAT...West winds 20 to 25 mph with gusts up to 45 mph 
  expected.

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

* WHEN...From 10 AM to 6 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.

&&

$$

VAZ025>027-029-030-038>040-507-508-WVZ051-100800-
/O.NEW.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Greene-Madison-
Rappahannock-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Morgan-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, Stanardsville, Madison, 
Washington, Big Meadows, Wintergreen, and Paw Paw
747 PM EDT Thu Apr 9 2020

...FREEZE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 29 possible.

* WHERE...Portions of central, northwest and western Virginia 
  and panhandle West Virginia.

* WHEN...From late Friday night through Saturday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$
769 
WWUS71 KLWX 100155
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
955 PM EDT Thu Apr 9 2020

MDZ003>006-503-505-507-VAZ028-031-501-505-WVZ052-053-101345-
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Frederick VA-Clarke-Northern Fauquier-Western Loudoun-Berkeley-
Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Winchester, Berryville, 
Warrenton, Purcellville, Martinsburg, Charles Town, 
and Shepherdstown
955 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT 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...Portions of central and northern Maryland, northern and
  northwestern Virginia and eastern West Virginia.

* WHEN...For the Wind Advisory, from 10 AM to 6 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.

&&

$$

VAZ506-101345-
/O.EXA.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
Eastern Loudoun-
Including the cities of Leesburg, Ashburn, and Sterling
955 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...
...FREEZE WATCH IN EFFECT FROM LATE FRIDAY NIGHT 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 33 possible.

* WHERE...Eastern Loudoun County.

* WHEN...For the Wind Advisory, from 10 AM to 6 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.

&&

$$

DCZ001-MDZ011-013-014-504-506-508-VAZ053-054-101345-
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Bethesda, Rockville, Gaithersburg,
Silver Spring, Columbia, Ellicott City, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, and Falls Church
955 PM EDT Thu Apr 9 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...

* WHAT...West winds 20 to 25 mph with gusts up to 45 mph 
  expected.

* WHERE...In Maryland, Central and Southeast Howard, Southeast
  Harford, Southern Baltimore, Prince Georges, Anne Arundel and
  Central and Southeast Montgomery Counties. District of 
  Columbia. In Virginia, Arlington/Falls Church/Alexandria, and 
  Fairfax County.

* WHEN...From 10 AM to 6 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.

&&

$$

VAZ050>052-502-101345-
/O.EXA.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Orange-Culpeper-Prince William/Manassas/Manassas Park-
Southern Fauquier-
Including the cities of Orange, Gordonsville, Culpeper, 
Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, 
and Turnbull
955 PM EDT Thu Apr 9 2020

...FREEZE WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 32 possible.

* WHERE...Orange, Culpeper, Prince William and southern Fauquier 
  Counties.

* WHEN...From late Friday night through Saturday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$

VAZ025>027-029-030-038>040-507-508-WVZ051-101345-
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Augusta-Rockingham-Shenandoah-Page-Warren-Greene-Madison-
Rappahannock-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-Morgan-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, 
Luray, Shenandoah, Stanley, Front Royal, Stanardsville, Madison, 
Washington, Big Meadows, Wintergreen, and Paw Paw
955 PM EDT Thu Apr 9 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY MORNING...

* WHAT...Sub-freezing temperatures as low as 29 possible.

* WHERE...Portions of central, northern and western Virginia and 
  eastern West Virginia.

* WHEN...From late Friday night through Saturday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$
889 
WWUS71 KLWX 100811
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
411 AM EDT Fri Apr 10 2020

VAZ025-026-507-508-101615-
/O.EXB.KLWX.WI.Y.0009.200410T1000Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Augusta-Rockingham-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Big Meadows, and Wintergreen
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory across elevations above 2000 feet,
  west to northwest winds 20 to 30 mph with gusts up to 50 mph 
  expected. For the Freeze Watch, sub-freezing temperatures around
  26 to 30 degrees over the ridges and 30 to 32 degrees in the 
  valleys possible.
 
* WHERE...Augusta and Rockingham Counties, and Northern Virginia 
  Blue Ridge and Central Virginia Blue Ridge.

* WHEN...For the Wind Advisory, until 6 PM EDT this evening. 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.

&&

$$

VAZ027-WVZ051-101615-
/O.EXB.KLWX.WI.Y.0009.200410T1200Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Shenandoah-Morgan-
Including the cities of Strasburg, Woodstock, Mount Jackson, 
New Market, and Paw Paw
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT
THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, west to northwest winds 20 to 30 
  mph with gusts up to 50 mph expected. For the Freeze Watch, sub-
  freezing temperatures around 26 to 30 degrees over the ridges 
  and 30 to 32 degrees in the valleys possible. 

* WHERE...In Virginia, Shenandoah County. In West Virginia, Morgan
  County.

* WHEN...For the Wind Advisory, until 6 PM EDT this evening. 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.

&&

$$

VAZ503-504-WVZ505-506-101615-
/O.EXB.KLWX.WI.Y.0009.200410T1000Z-200410T2200Z/
Western Highland-Eastern Highland-Western Pendleton-
Eastern Pendleton-
Including the cities of Hightown, Monterey, Riverton, Brandywine,
Franklin, Oak Flat, Ruddle, and Sugar Grove
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

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

* WHEN...Until 6 PM EDT 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.

&&

$$

MDZ501-502-WVZ050-055-501>504-101615-
/O.EXB.KLWX.WI.Y.0009.200410T1200Z-200410T2200Z/
Extreme Western Allegany-Central and Eastern Allegany-Hampshire-
Hardy-Western Grant-Eastern Grant-Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Romney, 
Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden, Antioch,
Keyser, New Creek, Ridgeville, Russelldale, Headsville, 
and Fort Ashby
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT
THIS EVENING...

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

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

* WHEN...From 8 AM this morning to 6 PM EDT 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.

&&

$$

VAZ029-030-101615-
/O.EXA.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Page-Warren-
Including the cities of Luray, Shenandoah, Stanley, 
and Front Royal
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 6 PM EDT
THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, west to northwest winds 20 to 30 
  mph with gusts up to 50 mph. For the Freeze Watch, subfreezing 
  temperatures around 30 to 32 degrees possible. 

* WHERE...Page and Warren Counties.

* WHEN...For the Wind Advisory, from 10 AM this morning until 6 PM
  this evening. 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.

&&

$$

MDZ003>006-503-505-507-VAZ028-031-501-505-506-WVZ052-053-101615-
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Frederick VA-Clarke-Northern Fauquier-Western Loudoun-
Eastern Loudoun-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Winchester, Berryville, 
Warrenton, Purcellville, Leesburg, Ashburn, Sterling, 
Martinsburg, Charles Town, and Shepherdstown
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 PM EDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, west to northwest winds 20 to 30 
  mph with gusts up to 50 mph expected. For the Freeze Watch, sub-
  freezing temperatures around 30 to 32 degrees possible.

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

* WHEN...For the Wind Advisory, from 10 AM this morning to 6 PM 
  EDT this evening. 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.

&&

$$

DCZ001-MDZ011-013-014-504-506-508-VAZ053-054-101615-
/O.CON.KLWX.WI.Y.0009.200410T1400Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Bethesda, Rockville, Gaithersburg,
Silver Spring, Columbia, Ellicott City, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, and Falls Church
411 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 PM EDT THIS EVENING...

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

* WHERE...In Maryland, Central and Southeast Howard, Southeast 
  Harford, Southern Baltimore, Prince Georges, Anne Arundel and 
  Central and Southeast Montgomery Counties. In District of 
  Columbia, District of Columbia. In Virginia, Arlington/Falls 
  Church/Alexandria, and Fairfax County.

* WHEN...From 10 AM this morning to 6 PM EDT 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.

&&

$$

VAZ038>040-050>052-502-101615-
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Greene-Madison-Rappahannock-Orange-Culpeper-
Prince William/Manassas/Manassas Park-Southern Fauquier-
Including the cities of Stanardsville, Madison, Washington, 
Orange, Gordonsville, Culpeper, Dale City, Manassas, Woodbridge, 
Lake Ridge, Montclair, and Turnbull
411 AM EDT Fri Apr 10 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...Sub-freezing temperatures around 30 to 32 degrees
  possible. 

* WHERE...Greene, Madison, Southern Fauquier, Rappahannock, 
  Orange, Culpeper and Prince William/Manassas/Manassas Park 
  Counties.

* WHEN...From late tonight through Saturday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$
790 
WWUS71 KLWX 101439
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
1039 AM EDT Fri Apr 10 2020

MDZ003>006-503-505-507-VAZ028>031-501-505-506-WVZ052-053-102245-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Frederick VA-Page-Warren-Clarke-Northern Fauquier-Western Loudoun-
Eastern Loudoun-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Winchester, Luray, Shenandoah, 
Stanley, Front Royal, Berryville, Warrenton, Purcellville, 
Leesburg, Ashburn, Sterling, Martinsburg, Charles Town, 
and Shepherdstown
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, west to northwest winds 20 to 30 
  mph with gusts up to 50 mph expected. For the Freeze Watch, 
  sub- freezing temperatures around 30 to 32 degrees possible.

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

* WHEN...For the Wind Advisory, from 10 AM this morning to 6 PM 
  EDT this evening. 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.

&&

$$

VAZ025-026-507-508-102245-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Augusta-Rockingham-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Big Meadows, and Wintergreen
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory across elevations above 2000 
  feet, west to northwest winds 20 to 30 mph with gusts up to 50 
  mph expected. For the Freeze Watch, sub-freezing temperatures 
  around 26 to 30 degrees over the ridges and 30 to 32 degrees 
  in the valleys possible.

* WHERE...Augusta and Rockingham Counties, and Northern Virginia 
  Blue Ridge and Central Virginia Blue Ridge.

* WHEN...For the Wind Advisory, until 6 PM EDT this evening. 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.

&&

$$

VAZ027-WVZ051-102245-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Shenandoah-Morgan-
Including the cities of Strasburg, Woodstock, Mount Jackson, 
New Market, and Paw Paw
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...For the Wind Advisory, west to northwest winds 20 to 30 
  mph with gusts up to 50 mph expected. For the Freeze Watch, 
  sub- freezing temperatures around 26 to 30 degrees over the 
  ridges and 30 to 32 degrees in the valleys possible.

* WHERE...In Virginia, Shenandoah County. In West Virginia, 
  Morgan County.

* WHEN...For the Wind Advisory, until 6 PM EDT this evening. 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.

&&

$$

DCZ001-MDZ011-013-014-504-506-508-VAZ053-054-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Bethesda, Rockville, Gaithersburg,
Silver Spring, Columbia, Ellicott City, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, and Falls Church
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

* WHERE...In Maryland, Central and Southeast Howard, Southeast 
  Harford, Southern Baltimore, Prince Georges, Anne Arundel and 
  Central and Southeast Montgomery Counties. In District of 
  Columbia, District of Columbia. In Virginia, Arlington/Falls 
  Church/Alexandria, and Fairfax County.

* WHEN...From 10 AM this morning to 6 PM EDT 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.

&&

$$

VAZ503-504-WVZ505-506-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Western Highland-Eastern Highland-Western Pendleton-
Eastern Pendleton-
Including the cities of Hightown, Monterey, Riverton, Brandywine,
Franklin, Oak Flat, Ruddle, and Sugar Grove
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

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

* WHEN...Until 6 PM EDT 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.

&&

$$

MDZ501-502-WVZ050-055-501>504-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Extreme Western Allegany-Central and Eastern Allegany-Hampshire-
Hardy-Western Grant-Eastern Grant-Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Romney, 
Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden, Antioch,
Keyser, New Creek, Ridgeville, Russelldale, Headsville, 
and Fort Ashby
1039 AM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

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

* WHEN...From 8 AM this morning to 6 PM EDT 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.

&&

$$

VAZ038>040-050>052-502-102245-
/O.CON.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Greene-Madison-Rappahannock-Orange-Culpeper-
Prince William/Manassas/Manassas Park-Southern Fauquier-
Including the cities of Stanardsville, Madison, Washington, 
Orange, Gordonsville, Culpeper, Dale City, Manassas, Woodbridge, 
Lake Ridge, Montclair, and Turnbull
1039 AM EDT Fri Apr 10 2020

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY MORNING...

* WHAT...Sub-freezing temperatures around 30 to 32 degrees 
  possible.

* WHERE...Greene, Madison, Southern Fauquier, Rappahannock, 
  Orange, Culpeper and Prince William/Manassas/Manassas Park 
  Counties.

* WHEN...From late tonight through Saturday morning.

* IMPACTS...Frost and freeze conditions could 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.

&&

$$
025 
WWUS71 KLWX 101828
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
228 PM EDT Fri Apr 10 2020

VAZ052-101930-
/O.CAN.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
Prince William/Manassas/Manassas Park-
Including the cities of Dale City, Manassas, Woodbridge, 
Lake Ridge, and Montclair
228 PM EDT Fri Apr 10 2020

...FREEZE WATCH IS CANCELLED...

Widespread freezing temperatures are no longer expected.

$$

MDZ003>006-503-505-507-VAZ028>031-501-505-506-WVZ052-053-110230-
/O.UPG.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.NEW.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-
Frederick VA-Page-Warren-Clarke-Northern Fauquier-Western Loudoun-
Eastern Loudoun-Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Winchester, Luray, Shenandoah, 
Stanley, Front Royal, Berryville, Warrenton, Purcellville, 
Leesburg, Ashburn, Sterling, Martinsburg, Charles Town, 
and Shepherdstown
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 34 expected. For the Wind Advisory, northwest winds 20 
  to 25 mph with gusts up to 45 mph.

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

* WHEN...For the Freeze Warning, from midnight tonight to 9 AM 
  EDT Saturday. For the Wind Advisory, until 6 PM EDT this 
  evening.

* 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.

&&

$$

VAZ025-026-507-508-110230-
/O.UPG.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.NEW.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Augusta-Rockingham-Northern Virginia Blue Ridge-
Central Virginia Blue Ridge-
Including the cities of Staunton, Waynesboro, Stuarts Draft, 
Harrisonburg, Big Meadows, and Wintergreen
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 20 
  to 25 mph with gusts up to 45 mph.

* WHERE...Augusta and Rockingham Counties, and Northern Virginia 
  Blue Ridge and Central Virginia Blue Ridge.

* WHEN...For the Freeze Warning, from midnight tonight to 9 AM 
  EDT Saturday. For the Wind Advisory, until 6 PM EDT this 
  evening.

* 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.

&&

$$

VAZ027-WVZ051-110230-
/O.UPG.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.NEW.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Shenandoah-Morgan-
Including the cities of Strasburg, Woodstock, Mount Jackson, 
New Market, and Paw Paw
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 33 expected. For the Wind Advisory, northwest winds 20 
  to 25 mph with gusts up to 45 mph.

* WHERE...In Virginia, Shenandoah County. In West Virginia, 
  Morgan County.

* WHEN...For the Freeze Warning, from midnight tonight to 9 AM 
  EDT Saturday. For the Wind Advisory, until 6 PM EDT this 
  evening.

* 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.

&&

$$

VAZ038>040-050-051-502-110230-
/O.UPG.KLWX.FZ.A.0001.200411T0400Z-200411T1300Z/
/O.NEW.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
Greene-Madison-Rappahannock-Orange-Culpeper-Southern Fauquier-
Including the cities of Stanardsville, Madison, Washington, 
Orange, Gordonsville, Culpeper, and Turnbull
228 PM EDT Fri Apr 10 2020

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...Sub-freezing temperatures as low as 34 expected.

* WHERE...Greene, Madison, Rappahannock, Orange, Culpeper and 
  Southern Fauquier 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.

&&

$$

VAZ036-037-110230-
/O.NEW.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
Nelson-Albemarle-
Including the cities of Lovingston and Charlottesville
228 PM EDT Fri Apr 10 2020

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SATURDAY...

* WHAT...Sub-freezing temperatures as low as 34 expected.

* WHERE...Nelson and Albemarle 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.

&&

$$

DCZ001-MDZ011-013-014-504-506-508-VAZ053-054-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Bethesda, Rockville, Gaithersburg,
Silver Spring, Columbia, Ellicott City, Aberdeen, Reston, 
Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, 
Arlington, Alexandria, and Falls Church
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

* WHERE...In Maryland, Central and Southeast Howard, Southeast 
  Harford, Southern Baltimore, Prince Georges, Anne Arundel and 
  Central and Southeast Montgomery Counties. In District of 
  Columbia, District of Columbia. In Virginia, Arlington/Falls 
  Church/Alexandria, and Fairfax County.

* WHEN...From 10 AM this morning to 6 PM EDT 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.

&&

$$

VAZ503-504-WVZ505-506-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Western Highland-Eastern Highland-Western Pendleton-
Eastern Pendleton-
Including the cities of Hightown, Monterey, Riverton, Brandywine,
Franklin, Oak Flat, Ruddle, and Sugar Grove
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

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

* WHEN...Until 6 PM EDT 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.

&&

$$

MDZ501-502-WVZ050-055-501>504-102200-
/O.CON.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
Extreme Western Allegany-Central and Eastern Allegany-Hampshire-
Hardy-Western Grant-Eastern Grant-Western Mineral-Eastern Mineral-
Including the cities of Frostburg, Cumberland, Romney, 
Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden, Antioch,
Keyser, New Creek, Ridgeville, Russelldale, Headsville, 
and Fort Ashby
228 PM EDT Fri Apr 10 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING...

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

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

* WHEN...From 8 AM this morning to 6 PM EDT 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.

&&

$$
121 
WWUS71 KLWX 102155
NPWLWX

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
555 PM EDT Fri Apr 10 2020

MDZ003>006-503-505-507-VAZ025>031-501-505>508-WVZ051>053-110600-
/O.CAN.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
/O.CON.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
Washington-Frederick MD-Carroll-Northern Baltimore-
Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta-
Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Northern Fauquier-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-Morgan-
Berkeley-Jefferson-
Including the cities of Hagerstown, Frederick, Ballenger Creek, 
Eldersburg, Westminster, Reisterstown, Cockeysville, Germantown, 
Damascus, Lisbon, Jarrettsville, Staunton, Waynesboro, 
Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson,
New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, 
Berryville, Warrenton, Purcellville, Leesburg, Ashburn, Sterling,
Big Meadows, Wintergreen, Paw Paw, Martinsburg, Charles Town, 
and Shepherdstown
555 PM EDT Fri Apr 10 2020

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

* WHAT...Sub-freezing temperatures ranging from the mid 20s in 
  the Shenandoah Valley to the low 30s in the northwest 
  DC/Baltimore suburbs.

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

* 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.

&&

$$

DCZ001-MDZ011-013-014-501-502-504-506-508-VAZ053-054-503-504-
WVZ050-055-501>506-102300-
/O.CAN.KLWX.WI.Y.0009.000000T0000Z-200410T2200Z/
District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Extreme Western Allegany-
Central and Eastern Allegany-Central and Southeast Montgomery-
Central and Southeast Howard-Southeast Harford-Fairfax-
Arlington/Falls Church/Alexandria-Western Highland-
Eastern Highland-Hampshire-Hardy-Western Grant-Eastern Grant-
Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
Including the cities of Washington, Baltimore, Bowie, 
Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, 
Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, 
Severna Park, Arnold, Odenton, Frostburg, Cumberland, Bethesda, 
Rockville, Gaithersburg, Silver Spring, Columbia, Ellicott City, 
Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, 
McLean, Franconia, Arlington, Alexandria, Falls Church, Hightown,
Monterey, Romney, Moorefield, Bayard, Mount Storm, Petersburg, 
Elk Garden, Antioch, Keyser, New Creek, Ridgeville, Russelldale, 
Headsville, Fort Ashby, Riverton, Brandywine, Franklin, Oak Flat,
Ruddle, and Sugar Grove
555 PM EDT Fri Apr 10 2020

...WIND ADVISORY IS CANCELLED...

Winds have dropped below Wind Advisory criteria.

$$

VAZ036>040-050-051-502-110600-
/O.CON.KLWX.FZ.W.0001.200411T0400Z-200411T1300Z/
Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Southern Fauquier-
Including the cities of Lovingston, Charlottesville, 
Stanardsville, Madison, Washington, Orange, Gordonsville, 
Culpeper, and Turnbull
555 PM EDT Fri Apr 10 2020

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
EDT SATURDAY...

* WHAT...Sub-freezing temperatures in the low 30s.

* WHERE...Greene, Madison, Nelson, Albemarle, Southern Fauquier, 
  Rappahannock, Orange and Culpeper 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.

&&

$$

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 Apr 9, 3:10 PM EDT, 4 hours 28 minutes earlier.

Area forecast discussion, Apr 9, 3:10 PM EDT, 4 hours 28 minutes before
Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
310 PM EDT Thu Apr 9 2020

.SYNOPSIS...
A cold front will exit to the east tonight while low pressure
deepens near Maine. The strong low will remain nearly stationary
through Friday, then high pressure will be able to build
overhead Saturday. Low pressure will affect the area Sunday
into Monday. High pressure builds back into our region through
the middle parts of next week.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
Convective/severe threat has ended, so the Severe Thunderstorm
Watch has been cancelled. Wind Advisory was extended in time
until 7 PM (some strong gusts possible through sunset) as well
as down the east side of the Blue Ridge (strong enough wind
fields plus downsloping effects are resulting in 40 kt gusts in
the lee of the mountains). The peak gusts of the day likely are
occurring or have occurred (west of I-95) with the immediate
pressure surge behind the front, which is now pressing through
southern Maryland.

As low pressure deepens and slows down near Maine, low level
wind fields will remain strong through the night. Should be
below advisory levels (except perhaps on the ridges), but
elevated gusts will likely continue through the night. Vorticity
rotating around a closed upper low to our north may result in a
few showers across northern areas through this evening. Snow
showers (and perhaps squalls) will be found along the Allegheny
Front, although accumulations should generally remain below
advisory criteria. Cold advection will result in lows in the 30s
to lower 40s.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/...
The low will remain nearly stationary near the Canadian
Maritimes through Friday while high pressure attempts to build
in from the west. This will keep a tight pressure gradient
across our area, so winds should increase again after sunrise.
Will allow subsequent shifts to determine if additional Wind
Advisories will be needed. Upslope snow showers will begin to
diminish as the upper low pivots away. Otherwise expect a mix of
clouds and sun with much cooler high temperatures in the 40s to
mid 50s.

The gradient winds will continue to weaken Friday evening and
into Saturday as the surface low continues to lift northeastward
away from our region. As winds become light and cooler air
moves into our region, we may need to issue some frost/freeze
headlines for portions of our forecast area Friday night into
Saturday morning. High pressure will be firmly in place over our
region Saturday with winds becoming light. Temperatures will be
continue to be cooler with daytime temps in the 50s and lower
60s. A warm front will lift north of our area late Saturday
night. A lead vort max ahead of the next system may try to
produce a shower or sprinkle across western areas, but most
areas should remain dry. Temperatures will moderate a bit into
the upper 30s to mid 40s.

&&

.LONG TERM /SUNDAY THROUGH THURSDAY/...
Dry conditions are likely early Sunday with high pressure offshore.
However a potent shortwave diving south out of the Texas Panhandle
will generate a strong area of low pressure over the Gulf of Mexico.
Rain will begin developing Sunday evening as the low tracks
northeastward along the Appalachians. Guidance has been very
consistent with this system in regards to the abundance of rainfall
associated with it. PWAT anamolies based on ensemble guidance
continues to remain 2 to 2.5 standard deviations above normal. Ample
moisture coupled with strong jet dynamics signal periods of heavy
rainfall through the day Monday. Overall, expect a general 1-2
inches of rainfall across the region. In terms of any possible
severe weather poised for Monday, confidence remains low at this
time given low CAPE values and weak mid-level lapse rates. However
given the high shear profile, could be enough to cause locally
damaging winds and perhaps a spin up. The best chance for this to
occur would be late Sunday night through midday Monday as the low's
associated cold front moves through the CWA. On a positive note,
this is a quick moving system and most, if not all, precip will
cease by Monday night.

Weak high pressure will move overhead for Tuesday, giving us a break
in the action. However, the jet stream remains quite active as most
of the continental US remains under a longwave trough. Model guidance
begins to diverge after Tuesday in regards to another shortwave
pulse that could generate another low over the Gulf of Mexico. The
ECMWF develops it just to our southeast, which would set us up
for a similar situation to Monday's system. However the GFS
develops this low further offshore, which would keep our area
drier. In any case, expect the long term pattern to remain
unsettled, with cooler than normal temperatures developing after
Monday through the end of next week.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
Cold front has passed through the terminals. Strongest wind
gusts probably occurred immediately in the wake of the front.
However, strong background westerly winds to around 40 kt will
likely continue until sunset. A few showers or sprinkles may be
near BWI/MTN/MRB through this evening but shouldn't pose any
ceiling/visibility issues. While winds diminish some overnight,
some 20-30 kt gust will remain likely.

Strong westerly winds will continue into Friday with gusts of 25 to
40 knots possible. Winds are expected to slowly taper off
Friday evening and into Saturday. No flight restrictions are
expected Friday and Saturday.

VFR conditions are likely early Sunday before CIG/VSBY restrictions
ensue by Sunday evening as rain develops across the region. IFR/LIFR
conditions are likely Monday with periods of heavy rain and possible
thunderstorms. Low-level wind shear is also of concern given a very
strong wind field aloft. Gusty winds are also likely and even
damaging winds cannot be ruled out at this time. Conditions are
likely to improve by Monday evening as the low quickly moves away
from the terminals.

&&

.MARINE...
Strong west winds are occurring in the wake of a frontal
passage. Gale Warnings remain in effect through the afternoon,
and may need to be extended into the evening for portions of the
waters. Generally SCA winds expected overnight, but will
increase again after sunrise. Portions of the waters may need a
Gale Warning, but am letting subsequent shifts make that
determination. SCA conditions will continue through Friday night
before diminishing Saturday as high pressure builds overhead.

Low pressure will track northeastward Sunday evening into Monday.
Gusty south to southeast winds are likely, with the strongest winds
most likely Sunday night into Monday morning. Periods of heavy rain
and perhaps even a couple thunderstorms are expected. Gusty to
damaging winds are possible in any thunderstorms that develop. A
brief waterspout is possible as well, given a very strong wind field
aloft. Confidence for this to occur is low at this time.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...Wind Advisory until 7 PM EDT this evening for DCZ001.
MD...Wind Advisory until 7 PM EDT this evening for MDZ003>006-011-
     013-014-501>508.
VA...Wind Advisory until 7 PM EDT this evening for VAZ025>031-
     036>040-052>054-501-503>508.
WV...Wind Advisory until 7 PM EDT this evening for WVZ050>053-055-
     501>506.
MARINE...Small Craft Advisory from 6 PM this evening to 6 AM EDT Friday
     for ANZ530>543.
     Gale Warning until 6 PM EDT this evening for ANZ530>543.

&&

SYNOPSIS...ADS
NEAR TERM...ADS
SHORT TERM...ADS
LONG TERM...MSS
AVIATION...ADS/MSS
MARINE...ADS/MSS
Hazardous weather outlook, Apr 9, 5:57 PM EDT, 1 hour 41 minutes before
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
557 PM EDT Thu Apr 9 2020

ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-102200-
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-
557 PM EDT Thu Apr 9 2020

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...Tonight

A Wind Advisory is in effect for the Baltimore and Washington
Metropolitan areas until 8 PM this evening. Westerly winds will
gust around 50 mph.

A Gale Warning is in effect for all waters until 8 PM this
evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

West to northwest wind gusts around around 50 mph are possible
Friday. A Wind Advisory may be needed.

A Gale Warning may be needed for the waters Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053-
055-501>506-102200-
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-
557 PM EDT Thu Apr 9 2020

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...Tonight

A Wind Advisory is in effect for northern and central Maryland,
northern Virginia, the Virginia foothills, the Shenandoah Valley,
and eastern West Virginia from until 8 PM this evening. Westerly
winds will gust around 50 mph.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

West to northwest wind gusts around 50 mph are possible Friday,
especially over the higher elevations and across northern and
central Maryland, northern Virginia and eastern West Virginia. A
Wind Advisory may be needed.

Freezing temperatures are possible Friday night north and west of
the I-95 corridor. A freeze warning may be required.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

In the hours before

Local storm report, Apr 9, 5:53 PM EDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
553 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     NON-TSTM WND DMG BEL AIR                 39.53N  76.35W
04/09/2020                   HARFORD            MD   EMERGENCY MNGR

            NUMEROUS REPORTS OF TREES AND WIRES DOWN ACROSS HARFORD
            COUNTY.

&&

EVENT NUMBER LWX2000998

KJP
Local storm report, Apr 9, 5:55 PM EDT, 1 hour 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
555 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0552 PM     NON-TSTM WND DMG 1 WSW LONDONTOWNE       38.93N  76.57W
04/09/2020                   ANNE ARUNDEL       MD   FIRE DEPT/RESCUE

            DOZENS OF REPORTS OF TREES AND/OR POWER LINES DOWN
            ACROSS ANNE ARUNDEL COUNTY.

&&

EVENT NUMBER LWX2000999

CJL
Local storm report, Apr 9, 5:56 PM EDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
556 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0200 PM     NON-TSTM WND DMG WARRENTON               38.72N  77.80W
04/09/2020                   FAUQUIER           VA   911 CALL CENTER

            MULTIPLE TREES DOWN AND POWER LINES DOWN SCATTERED IN
            THE COUNTY. BLOWN OVER BLIND CAUSED A SMALL BRUSH FIRE
            NEAR ROCKHILL MILL ROAD. ANOTHER BRUSH FIRE WAS STARTED
            NEAR THE DELAPLAIN AREA AND POSSUM HOLLOW DRIVE.

&&

EVENT NUMBER LWX2001000

ADM
Local storm report, Apr 9, 6:01 PM EDT, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
601 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1256 PM     NON-TSTM WND GST MIDDLETOWN              39.45N  77.52W
04/09/2020  M58 MPH          FREDERICK          MD   MESONET

0100 PM     NON-TSTM WND GST SWOOPE                  38.19N  79.18W
04/09/2020  M60 MPH          AUGUSTA            VA   MESONET

0149 PM     NON-TSTM WND GST WEYERS CAVE             38.28N  78.87W
04/09/2020  M59 MPH          AUGUSTA            VA   MESONET

0244 PM     NON-TSTM WND GST HART/MILLER             39.25N  76.41W
04/09/2020  M59 MPH          BALTIMORE          MD   WXFLOW

&&

EVENT NUMBER LWX2001001
EVENT NUMBER LWX2001002
EVENT NUMBER LWX2001003
EVENT NUMBER LWX2001004

CJL
Local storm report, Apr 9, 6:18 PM EDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
618 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0416 PM     NON-TSTM WND DMG ELLICOTT CITY           39.27N  76.83W
04/09/2020                   HOWARD             MD   911 CALL CENTER

            LARGE TREE DOWN ON HOUSE IN 10100 BLOCK OF CENTURY
            DRIVE.

&&

EVENT NUMBER LWX2001005

KJP
Local storm report, Apr 9, 6:20 PM EDT, 1 hour 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
620 PM EDT THU APR 09 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0145 PM     NON-TSTM WND DMG ELLICOTT CITY           39.27N  76.83W
04/09/2020                   HOWARD             MD   911 CALL CENTER

            SCATTERED REPORTS OF TREES AND WIRES DOWN THROUGHOUT
            HOWARD COUNTY.

&&

EVENT NUMBER LWX2001006

KJP

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 8, 8:13 PM EDTWind AdvisoryLWXBerkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more23 hr
Apr 9, 2:42 AM EDTSevere Thunderstorm WarningLWXPendleton63 min
Apr 9, 2:52 AM EDTSevere Thunderstorm WarningLWXGrant, Hardy38 min
Apr 9, 11:44 AM EDTSevere Thunderstorm WarningLWXBerkeley, Jefferson46 min
Apr 9, 7:47 PM EDTFreeze WatchLWXBerkeley, Jefferson, Morgan19 hr
Apr 9, 3:19 AM EDTCoastal Flood AdvisoryLWXAnne Arundel9 hr
Apr 9, 11:51 AM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Howard, Montgomery39 min
Apr 9, 12:13 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's47 min
Apr 9, 12:24 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, City of Baltimore66 min
Apr 9, 1:16 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Harford, City of Baltimore18 min
Apr 9, 3:14 AM EDTSevere Thunderstorm WarningLWXAugusta, City of Staunton, City of Waynesboro61 min
Apr 9, 5:33 AM EDTSpecial Marine WarningLWX51 min
Apr 9, 7:58 AM EDTSpecial Marine WarningLWX66 min
Apr 9, 12:00 PM EDTSpecial Marine WarningLWX90 min
Apr 9, 12:06 PM EDTSpecial Marine WarningLWX114 min
Apr 9, 12:43 PM EDTSpecial Marine WarningLWX52 min
Apr 9, 12:58 PM EDTSpecial Marine WarningLWX37 min
Apr 9, 7:37 PM EDTGale WarningLWX26 hr
Apr 9, 7:37 PM EDTSmall Craft AdvisoryLWX46 hr

Nearby

Wind Advisories in Virginia, 2020Wind Advisories in Maryland, 2020Wind Advisories in West Virginia, 2020Every wind advisory in 2020

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.