Alert archive / Virginia / Wind Advisories in 2018
Wind Advisory 3, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Mar 2, 2018, 7:57 PM EST for 14 counties in Maryland; 8 counties in West Virginia; 33 counties in Virginia. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Mar 2, 2018, 7:57 PM EST (00:57 UTC)
- Expired
- Mar 3, 2018, 5:44 AM EST
- In force
- 10 hr
- Issued by
- NWS Baltimore/Washington
All 55 counties
Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Washington 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 Fredericksburg, 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, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford 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), 47 km from the middle of the area, began a volume at 00:58 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, 1.0 hours before the alert went out and 53 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1903 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 521 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
493 WWUS71 KLWX 030057 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 757 PM EST Fri Mar 2 2018 MDZ003-501-502-VAZ025>031-040-503-504-507-508-WVZ050>053-055- 501>506-030900- /O.CAN.KLWX.HW.W.0001.000000T0000Z-180303T1100Z/ /O.NEW.KLWX.WI.Y.0003.180303T0057Z-180303T1800Z/ Washington-Extreme Western Allegany-Central and Eastern Allegany- Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Rappahannock-Western Highland-Eastern Highland- 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- Including the cities of Hagerstown, Frostburg, Cumberland, Staunton, Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, Washington, Hightown, Monterey, Big Meadows, Wintergreen, Romney, Paw Paw, Martinsburg, Charles Town, Shepherdstown, 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 757 PM EST Fri Mar 2 2018 ...WIND ADVISORY IN EFFECT UNTIL 1 PM EST SATURDAY... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Baltimore MD/Washington has issued a Wind Advisory, which is in effect until 1 PM EST Saturday. The High Wind Warning has been cancelled. * TIMING...Through Saturday afternoon. * WINDS...Northwest 25 to 35 mph with gusts up to 55 mph in the valleys with potentially higher gusts along the ridge tops overnight. The strongest winds in the valleys are expected this evening. Strong winds will continue through tonight along the ridge tops. * 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... A High Wind Warning means a hazardous high wind event is occurring. Gusts over 60 mph will lead to widespread damage. A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$ VAZ036>039-050-051-056-030900- /O.CAN.KLWX.HW.W.0001.000000T0000Z-180303T0500Z/ /O.NEW.KLWX.WI.Y.0003.180303T0057Z-180303T1800Z/ Nelson-Albemarle-Greene-Madison-Orange-Culpeper-Spotsylvania- Including the cities of Lovingston, Charlottesville, Stanardsville, Madison, Orange, Gordonsville, Culpeper, and Fredericksburg 757 PM EST Fri Mar 2 2018 ...WIND ADVISORY IN EFFECT UNTIL 1 PM EST SATURDAY... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Baltimore MD/Washington has issued a Wind Advisory, which is in effect until 1 PM EST Saturday. The High Wind Warning has been cancelled. * TIMING...Through Saturday afternoon. * WINDS...Northwest 20 to 35 mph with gusts up to 50 mph. The strongest winds will be through this evening. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is expected or occurring. Gusts of 58 mph or more can lead to property damage. A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$ DCZ001-MDZ004-005-013-014-016>018-503>506-VAZ052>055-057-501-502- 505-506-030900- /O.CON.KLWX.HW.W.0001.000000T0000Z-180303T1100Z/ District of Columbia-Frederick MD-Carroll-Prince Georges- Anne Arundel-Charles-St. Marys-Calvert-Northwest Montgomery- Central and Southeast Montgomery-Northwest Howard- Central and Southeast Howard- 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, 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, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falmouth, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 757 PM EST Fri Mar 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM EST SATURDAY... * TIMING...Through tonight. * WINDS...Northwest 25 to 40 mph with gusts 55 to 65 mph. The strongest winds will be through this evening. * IMPACTS...Widespread power outages are occurring. Travel is dangerous, especially for high profile vehicles, and motorists need to be aware of rapidly changing road conditions due to the potential of downed trees and power lines. Pedestrians will face very hazardous conditions, and need to be aware of wind-borne projectiles. People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your homes during the windstorm, and avoid windows. If you use a portable generator, follow manufacturer's instructions and do not use inside homes, garages, or apartments. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is occurring. Gusts over 60 mph will lead to widespread damage. && $$ MDZ006-011-507-508-030900- /O.CON.KLWX.HW.W.0001.000000T0000Z-180303T1100Z/ Northern Baltimore-Southern Baltimore-Northwest Harford- Southeast Harford- Including the cities of Reisterstown, Cockeysville, Baltimore, Jarrettsville, and Aberdeen 757 PM EST Fri Mar 2 2018 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM EST SATURDAY... * TIMING...Through tonight. * WINDS...Northwest 25 to 40 mph with gusts 55 to 65 mph. The strongest winds will be through this evening. * IMPACTS...Widespread power outages are occurring. Travel is dangerous, especially for high profile vehicles, and motorists need to be aware of rapidly changing road conditions due to the potential of downed trees and power lines. Pedestrians will face very hazardous conditions, and need to be aware of wind-borne projectiles. People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your homes during the windstorm, and avoid windows. If you use a portable generator, follow manufacturer's instructions and do not use inside homes, garages, or apartments. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Wind Warning means a hazardous high wind event is occurring. Gusts over 60 mph will lead to widespread damage. && $$ BKF
3 follow-up statements
517 WWUS71 KLWX 030541 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1241 AM EST Sat Mar 3 2018 DCZ001-MDZ004>006-011-013-014-016>018-503>508-VAZ052>055-057-501- 502-505-506-031345- /O.CAN.KLWX.HW.W.0001.000000T0000Z-180303T1100Z/ /O.EXB.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- 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, 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, Falmouth, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 1241 AM EST Sat Mar 3 2018 ...WIND ADVISORY IN EFFECT UNTIL 11 AM EST THIS MORNING... ...HIGH WIND WARNING IS CANCELLED... The National Weather Service in Baltimore MD/Washington has issued a Wind Advisory, which is in effect until 11 AM EST this morning. The High Wind Warning has been cancelled. * TIMING...Until 11 AM today. * WINDS...Northwest 20 to 30 mph with gusts up to 50 mph. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$ MDZ003-501-502-VAZ025>031-036>040-050-051-056-503-504-507-508- WVZ050>053-055-501>506-031345- /O.EXT.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ Washington-Extreme Western Allegany-Central and Eastern Allegany- Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Spotsylvania-Western Highland-Eastern Highland- Northern Virginia Blue Ridge-Central Virginia Blue Ridge- Hampshire-Morgan-Berkeley-Jefferson-Hardy-Western Grant- Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- Including the cities of Hagerstown, Frostburg, Cumberland, Staunton, Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, Lovingston, Charlottesville, Stanardsville, Madison, Washington, Orange, Gordonsville, Culpeper, Fredericksburg, Hightown, Monterey, Big Meadows, Wintergreen, Romney, Paw Paw, Martinsburg, Charles Town, Shepherdstown, Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden, Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, Fort Ashby, Riverton, Brandywine, Franklin, Oak Flat, Ruddle, and Sugar Grove 1241 AM EST Sat Mar 3 2018 ...WIND ADVISORY NOW IN EFFECT UNTIL 11 AM EST THIS MORNING... * TIMING...Until 11 AM today. * WINDS...Northwest 20 to 30 mph with gusts up to 45 mph. * IMPACTS...Strong winds may blow down limbs, trees, and power lines. Scattered power outages are expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$
869 WWUS71 KLWX 030908 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 408 AM EST Sat Mar 3 2018 MDZ501-502-VAZ036>040-050-051-056-WVZ050-051-055-501>504-031015- /O.CAN.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ Extreme Western Allegany-Central and Eastern Allegany-Nelson- Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Spotsylvania-Hampshire-Morgan-Hardy-Western Grant-Eastern Grant- Western Mineral-Eastern Mineral- Including the cities of Frostburg, Cumberland, Lovingston, Charlottesville, Stanardsville, Madison, Washington, Orange, Gordonsville, Culpeper, Fredericksburg, Romney, Paw Paw, Moorefield, Bayard, Mount Storm, Petersburg, Elk Garden, Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, and Fort Ashby 408 AM EST Sat Mar 3 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Baltimore MD/Washington has cancelled the Wind Advisory. Gusts to 45 mph are no longer expected. $$ MDZ003-VAZ025>031-503-504-507-508-WVZ052-053-505-506-031600- /O.CON.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ Washington-Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren- Clarke-Western Highland-Eastern Highland- Northern Virginia Blue Ridge-Central Virginia Blue Ridge-Berkeley- Jefferson-Western Pendleton-Eastern Pendleton- Including the cities of Hagerstown, Staunton, Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, Hightown, Monterey, Big Meadows, Wintergreen, Martinsburg, Charles Town, Shepherdstown, Riverton, Brandywine, Franklin, Oak Flat, Ruddle, and Sugar Grove 408 AM EST Sat Mar 3 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... * TIMING...Until 11 AM today. * WINDS...Northwest 15 to 25 mph with gusts up to 45 mph. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$ DCZ001-MDZ004>006-011-013-014-016>018-503>508-VAZ052>055-057-501- 502-505-506-031600- /O.CON.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- 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, 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, Falmouth, Dahlgren, Warrenton, Turnbull, Purcellville, Leesburg, Ashburn, and Sterling 408 AM EST Sat Mar 3 2018 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... * TIMING...Until 11 AM today. * WINDS...Northwest 20 to 25 mph with gusts up to 45 mph. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Advisory means that winds of 45 to 55 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. && $$
783 WWUS71 KLWX 031044 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 544 AM EST Sat Mar 3 2018 DCZ001-MDZ003>006-011-013-014-016>018-503>508-VAZ025>031-052>055- 057-501>508-WVZ052-053-505-506-031145- /O.CAN.KLWX.WI.Y.0003.000000T0000Z-180303T1600Z/ District of Columbia-Washington-Frederick MD-Carroll- Northern Baltimore-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- Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-King George- Northern Fauquier-Southern Fauquier-Western Highland- Eastern Highland-Western Loudoun-Eastern Loudoun- Northern Virginia Blue Ridge-Central Virginia Blue Ridge-Berkeley- Jefferson-Western Pendleton-Eastern Pendleton- 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, 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, Staunton, Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falmouth, Dahlgren, Warrenton, Turnbull, Hightown, Monterey, Purcellville, Leesburg, Ashburn, Sterling, Big Meadows, Wintergreen, Martinsburg, Charles Town, Shepherdstown, Riverton, Brandywine, Franklin, Oak Flat, Ruddle, and Sugar Grove 544 AM EST Sat Mar 3 2018 ...WIND ADVISORY IS CANCELLED... The National Weather Service in Baltimore MD/Washington has cancelled the Wind Advisory. Wind gusts of 45 mph or stronger are no longer expected this morning. It will still be windy today with gusts between 35 mph and 40 mph through this morning diminishing between 30 mph and 35 mph in the afternoon. $$
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 Mar 2, 2:21 PM EST, 5 hours 36 minutes earlier.
Area forecast discussion, Mar 2, 2:21 PM EST, 5 hours 36 minutes before
Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
221 PM EST Fri Mar 2 2018
.SYNOPSIS...
Strong low pressure will move east off the New England coast
through tonight. High pressure will approach the area Saturday
and Sunday before building overhead Sunday night into Monday.
Low pressure may impact the area Tuesday and Wednesday of next
week and high pressure will return for late in the week.
&&
.NEAR TERM /THROUGH TONIGHT/...
Very strong low pressure will slowly move east off the New
England Coast through tonight. A strong pressure gradient
between the low off the New England Coast and high pressure over
the Great Lakes will continue to cause very windy conditions
through tonight. Cold advection and pressure rises continue to
cause a deep mixing layer close to 4-5kft and this is evident in
the special 18z KIAD RAOB. Winds at the top of the mixing layer
are around 50 to 60 knots. Given the deep mixing layer, wind
gusts around 50 to 65 mph are likely through the rest of this
afternoon and into this evening.
There have been numerous reports of trees down and this may
impact travelers so if you do have to travel be extra careful
and allow plenty of time to get to your destination.
Also...pedestrians will face very hazardous conditions, and need
to be aware of wind-borne projectiles.
The gradient will gradually weaken later tonight as the low
shifts farther east off the New England Coast. Weak cold
advection should still be enough to cause mixing...but the
mixing layer should not be as deep after sunset. Latest guidance
still shows 925mb winds around 40 to 50 knots throughout the
night and given the cold advection these winds certainly can mix
down. Wind gusts around 35 to 55 mph are most likely during
this time with the strongest gusts expected across the
Washington and Baltimore Metropolitan areas into southern
Maryland and near the Chesapeake Bay. Gusts around 60 mph will
continue along the ridges. The High Wind Warning remains in
effect through tonight but it may be able to be cancelled early,
especially for valley locations west of the Blue Ridge
Mountains and across the Virginia Piedmont where the gradient
will weaken a bit faster.
A few upslope snow showers will continue through the rest of
this afternoon but any additional accumulation will be light.
Wrap around moisture will cause mostly cloudy skies and perhaps
a few rain or snow showers near the Bay this afternoon and
evening. Any precipitation will be light. Elsewhere it will be
dry.
&&
.SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
High pressure will approach the area Saturday and gusty
northwest winds are expected ahead of the building high.
However, it will not be nearly as windy as Friday. Frequent
gusts around 30 to 45 mph are expected with the highest gusts
across the Washington and Baltimore Metropolitan areas toward
the Bay where the gradient will be a bit stronger. Across the
ridges, higher gusts are possible around 50 to 55 mph. A Wind
Advisory may be needed for portions of the area Saturday but
confidence is too low to issue one at this time. High pressure
will build overhead Saturday night through Sunday night and
winds will continue to diminish. Dry and seasonable temperatures
are expected during this time.
&&
.LONG TERM /MONDAY THROUGH FRIDAY/...
Dry conditions expected on Monday as high pressure
remains in control. A low pressure system and it associated cold
front will approach our region on Tuesday. The surface low
pressure system will be moving east across the Ohio Valley and
as it approaches the Mid-Atlantic coast on Wednesday, it will
transfer its energy to a low pressure offshore that will then
intensify as it moves northeast into Thursday. Unsettled weather
is expected as this system approaches with rain possible as
early as Monday night and into Wednesday, with possible snow
showers mainly west of the Allegheny front... but cannot rule
out that some make it to areas west of Blue Ridge.
High temperatures will be mainly in the 40s and some 50s, with
30s at higher elevations. Low temperatures will be in the 20s
and 30s, with maybe some 40s.
&&
.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
High impact wind expected across the region through this
evening. Frequent gusts around 40 to 55 knots are expected
during this time.
Winds will gradually diminish later tonight but gusts around 35
to 45 knots are still expected. Winds will continue through
Saturday with gusts 30 to 40 knots most likely and winds will
continue to diminish Saturday night through Sunday night as
high pressure builds overhead. VFR conditions are expected
during this time.
VFR conditions expected Monday. Rain showers
expected to start on Tuesday and remain into Wednesday, maybe
Thursday, causing sub-VFR conditions over the terminals.
&&
.MARINE...
Strong low pressure will move east off the New England Coast
through tonight. Strong winds will continue due to a very strong
pressure gradient with frequent gusts around 45 to 55 knots
expected. A Storm Warning is in effect for the waters through
tonight. Winds will gradually diminish Saturday through Saturday
night, but gusty winds will continue. Northwest winds will gust
around 30 to 45 knots Saturday so a Gale Warning is in effect.
It is not out of the question a few gusts around 50 knots could
occur Saturday, especially during the morning hours. A Storm
Warning may be needed, but confidence was too low at this time
for a headline. Gale force winds may continue for portions of
the waters into Saturday night and a Small Craft Advisory will
likely be needed Sunday.
Winds will be on the decrease on Monday and remain
below SCA criteria into Tuesday. Winds will increase Tuesday
night but are expected to remain below criteria into
Wednesday.
&&
.TIDES/COASTAL FLOODING...
Very strong NW winds will continue through Saturday. This will
result in tidal departures of 2 to 4 ft below normal. Tidal
anomalies will begin to recover on Sunday. With anomalies this
low, this means that water levels will be extremely low,
especially near times of low tide.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...High Wind Warning until 6 AM EST Saturday for DCZ001.
MD...High Wind Warning until 6 AM EST Saturday for MDZ003>006-011-
013-014-016>018-501>508.
VA...High Wind Warning until 6 AM EST Saturday for VAZ025>031-040-
052>055-057-501>508.
High Wind Warning until midnight EST tonight for VAZ036>039-
050-051-056.
WV...High Wind Warning until 6 AM EST Saturday for WVZ050>053-055-
501>506.
MARINE...Storm Warning until 6 AM EST Saturday for ANZ530>543.
Gale Warning from 6 AM to 6 PM EST Saturday for ANZ530>543.
&&
SYNOPSIS...BJL
NEAR TERM...BJL
SHORT TERM...BJL
LONG TERM...IMR
AVIATION...BJL/IMR
MARINE...BJL/IMR
TIDES/COASTAL FLOODING...BJLHazardous weather outlook, Mar 2, 3:17 PM EST, 4 hours 40 minutes before
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 317 PM EST Fri Mar 2 2018 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-031000- 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- 317 PM EST Fri Mar 2 2018 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and adjacent counties in central Maryland and northern Virginia as well as the District of Columbia. .DAY ONE...This Afternoon and Tonight A High Wind Warning is in effect through tonight. Strong winds will continue to cause widespread damage and power outages. The strongest winds will be through this evening. A Storm Warning is in effect for all the waters through tonight. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Isolated wind damage from gusty winds is possible Saturday. A Storm Warning may be needed for portions of the waters Saturday morning. A Gale Warning is in effect for the waters Saturday and a Gale Warning may be needed for portions of the waters Saturday night. .SPOTTER INFORMATION STATEMENT... Please report any wind damage to the National Weather Service. MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053- 055-501>506-031000- 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- 317 PM EST Fri Mar 2 2018 This Hazardous Weather Outlook is for eastern West Virginia, northern and central Virginia, and central and western Maryland with the exception of Garrett County. .DAY ONE...This Afternoon and Tonight A High Wind Warning is in effect through tonight. Strong winds will continue to cause widespread damage and power outages. The strongest winds will be through this evening. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Isolated wind damage from gusty winds is possible Saturday. .SPOTTER INFORMATION STATEMENT... Please report any wind damage to the National Weather Service.
In the hours before
Local storm report, Mar 2, 4:50 PM EST, 3 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
450 PM EST FRI MAR 02 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM NON-TSTM WND DMG 1 NNE ASHBURN 39.06N 77.48W
03/02/2018 LOUDOUN VA NWS EMPLOYEE
MULTIPLE TOWNHOMES WITH MISSING SIDING, LIGHT POSTS
BLOWN OVER, TREE LIMBS SNAPPED, FENCE BLOWN DOWN
&&
EVENT NUMBER LWX1801602
RCMLocal storm report, Mar 2, 5:32 PM EST, 2 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
532 PM EST FRI MAR 02 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0510 PM NON-TSTM WND DMG 3 ENE LAYTONSVILLE 39.22N 77.09W
03/02/2018 MONTGOMERY MD EMERGENCY MNGR
LARGE TREE DOWN ON HOUSE, SIDING BLOWN OFF
&&
EVENT NUMBER LWX1801603
RCMLocal storm report, Mar 2, 6:13 PM EST, 1 hour 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
613 PM EST FRI MAR 02 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0100 PM NON-TSTM WND DMG 1 NNE BEL AIR 39.55N 76.34W
03/02/2018 HARFORD MD TRAINED SPOTTER
SEVERAL LARGE BRANCHES DOWN, SIDING AND SHINGLES BLOWN
OFF OF MULTIPLE HOMES
&&
EVENT NUMBER LWX1801604
RCMLocal storm report, Mar 2, 6:14 PM EST, 1 hour 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
614 PM EST FRI MAR 02 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0442 PM NON-TSTM WND GST MCDONOGH 39.40N 76.78W
03/02/2018 M61 MPH BALTIMORE MD MESONET
&&
EVENT NUMBER LWX1801605
RCMLocal storm report, Mar 2, 6:15 PM EST, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
615 PM EST FRI MAR 02 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0247 PM NON-TSTM WND GST HAGERSTOWN REGIONAL AIR 39.71N 77.73W
03/02/2018 M58 MPH WASHINGTON MD ASOS
&&
EVENT NUMBER LWX1801611
RCMSpecial weather statement, Mar 2, 6:26 PM EST, 1 hour 31 minutes before
Special Weather Statement National Weather Service Baltimore MD/Washington DC 626 PM EST Fri Mar 2 2018 ANZ530>543-DCZ001-MDZ003>006-011-013-014-016>018-501>508- VAZ025>031-036>040-050>057-501>508-WVZ050>053-055-501>506-030400- 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-Washington-Frederick MD-Carroll- Northern Baltimore-Southern Baltimore-Prince Georges-Anne Arundel- Charles-St. Marys-Calvert-Extreme Western Allegany- Central and Eastern Allegany-Northwest Montgomery- Central and Southeast Montgomery-Northwest Howard- Central and Southeast Howard-Northwest Harford-Southeast Harford- Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George-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- 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, St. Charles, Waldorf, Lexington Park, California, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Frostburg, Cumberland, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Staunton, Waynesboro, Stuarts Draft, Harrisonburg, Strasburg, Woodstock, Mount Jackson, New Market, Winchester, Luray, Shenandoah, Stanley, Front Royal, Berryville, Lovingston, Charlottesville, Stanardsville, Madison, Orange, Gordonsville, Culpeper, Dale City, Manassas, Woodbridge, Lake Ridge, Montclair, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falmouth, Fredericksburg, Dahlgren, Warrenton, Turnbull, Hightown, Monterey, Purcellville, Leesburg, Ashburn, Sterling, Big Meadows, Wintergreen, Romney, Paw Paw, Martinsburg, Charles Town, Shepherdstown, 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 626 PM EST Fri Mar 2 2018 ...A HIGH-IMPACT WINDSTORM CONTINUES FOR THE MID-ATLANTIC... At 6:00 PM, high winds continue across the region, with gusts commonly between 40 and 60 mph over land, and 40 to 60 knots over water. This is a prolonged, high-impact windstorm for the region, with many downed trees and power lines. The duration of the winds will add to the hazardous nature of this event. While gusts will slowly diminish in intensity this weekend, they will remain around 40 mph Saturday. This will hamper the repair of power lines and tree removal. Travel is dangerous on the roads, especially for high profile vehicles. Be aware of rapidly changing road conditions due to the potential of downed trees and power lines. This is especially true after nightfall as you may quickly come up on an unseen tree across the road. The waters remain exceptionally hazardous as well. Pedestrians will also face very hazardous conditions, and need to be aware of wind-borne projectiles. People should avoid being outside in forested areas and around trees. If possible, remain in the lower levels of your homes during the windstorm, and avoid windows. Widespread power outages are occurring. If you use a portable generator, follow manufacturer's instructions and do not operate it indoors or in your garage. Also, check on the safety and wellness of the elderly and physically challenged. A High Wind Warning is in effect for most of the area until 6 AM Saturday. This includes the greater metropolitan areas of Baltimore and Washington DC. A Storm Warning is in effect for the waters until 6 AM. The high winds are being created by an intense low pressure system offshore.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 2, 9:36 PM EST | Small Craft Advisory | LWX | 71 hr |
Nearby
Wind Advisories in Virginia, 2018Wind Advisories in Maryland, 2018Wind Advisories in West Virginia, 2018Every wind advisory in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.