A low pressure system moving eastward from the central United States on Thursday March 1st, intensified rapidly as it moved offshore Thursday night and early Friday, deepening to 974 mb by the evening of Friday March 2nd. Strong winds were present in the low levels of the atmosphere due to the strengthening pressure gradient, and were able to mix down to the surface in strong wind gusts under…
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
A low pressure system moving eastward from the central United States on Thursday March 1st, intensified rapidly as it moved offshore Thursday night and early Friday, deepening to 974 mb by the evening of Friday March 2nd.
Strong winds were present in the low levels of the atmosphere due to the strengthening pressure gradient, and were able to mix down to the surface in strong wind gusts under northwest flow cold air advection.
The local office's own words before the first event, 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 the first event at Mar 1, 7:57 PM EST, 1 hour 27 minutes earlier.
Area Forecast Discussion
National Weather Service Baltimore MD/Washington DC
757 PM EST Thu Mar 1 2018
.SYNOPSIS...
Low pressure will pass by to the north tonight and it will
rapidly intensify as it develops into a coastal low off the New
England Coast for Friday. The low will slowly drift east Friday
night through Saturday. High pressure will gradually build
overhead Saturday night through Monday. Low pressure may impact
the area Tuesday and Wednesday of next week.
&&
.NEAR TERM /THROUGH FRIDAY/...
Low pressure over the Ohio Valley will pass by to our north
tonight and it will rapidly intensify as it develops into a
coastal low off the New England Coast by Friday morning, and
rapidly intensifies during the day Friday before drifting east
Friday night.
Rain has overspread much of the region this evening, especially
across the northern half of the area. The cold front associated
with the low will pass through our area late this evening and
overnight, first across locations west of the Blue Ridge
Mountains between 9 pm and midnight, then across the rest of the
area between midnight and 3 am. A wind shift to the west and
northwest is expected behind the front and strong winds will
accompany that shift. The gradient will continue to strengthen
overnight causing strong winds. Winds at the top of the mixing
layer continue to be modeled between 60 to 75 knots per latest
multi-model consensus, peaking between 5 am and 12 noon, with
mean mixed layer winds between 50 and 60 knots. Therefore a High
Wind Warning is in effect for the entire region with gusts
around 60 to 70 mph expected. Could see gusts even a bit higher
than that...especially across the ridge tops.
Concern is increasing for the Friday morning hours between 6 am
and 12 noon for the strongest period of winds. A feature similar
to a "sting jet" (Browning 2002, Schultz and Browning 2017) may
cross the region during this time frame, increasing the threat
for the 60-70 mph winds. There will also likely be some
rain/snow showers around during the morning hours, including the
Washington and Baltimore Metropolitan areas. Snowfall could
coat some grassy surfaces but recent warm conditions and
marginal temperatures suggest that paved surfaces will be wet.
Following this period, strong and damaging winds will continue
through Friday and well into Friday night before diminishing
slightly toward morning. The fact that this is a long duration
event and the ground will already be saturated means that
widespread tree damage is expected along with power outages.
This is going to be one of the most powerful wind storms in
recent years. Through this evening...it is a good time to secure
lightweight objects outside, and check flashlights and
batteries as well as other items needed in a power outage.
Upslope snow showers will also develop behind the cold front
late this evening and overnight. Accumulating snow is expected
and travel will be hazardous across these areas due to the
strong winds and snow. A Winter Weather Advisory continues for
these areas. The combination of snow and blowing snow will
reduce vsbys below one-half mile at times making travel very
difficult.
&&
.SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/...
High pressure will gradually build toward the region Saturday
through Saturday night. Gusty winds are still expected Saturday
with 30 to 45 mph gusts most likely. Winds will gradually
diminish Saturday night but it will still be blustery.
&&
.LONG TERM /SUNDAY THROUGH THURSDAY/...
A high pressure system centered over eastern
Ontario will be in control Sunday and remain into Monday night
before another storm system approaches from the west on Tuesday.
This system will bring unsettled weather to our region from
early Tuesday and into Wednesday night, with some upslope show
showers possible into Thursday. Another high pressure will build
in for the end of the work week.
High temperatures will be mainly in the 40s, with 30s at higher
elevations. Low temperatures will be in the 20s and 30s.
&&
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
Low pressure will pass by to the north tonight. Rain will fill
in across the northern terminals and IFR conditions are expected
to develop late this afternoon into this evening. The cold front
associated with the low will pass through between 04 and 07z
from west to east. Strong west to northwest winds will develop
behind the cold front and strong winds will continue through
Friday night as the low rapidly intensifies off the New England
Coast. Gusts around 50 to 60 knots are expected. The strongest
wind gusts are most likely Friday morning into Friday evening.
Winds will slowly diminish a bit late Friday night but still
remain gusty through Saturday. Wind gusts around 30 to 40 knots
are expected during this time. High pressure will build overhead
Saturday night and winds will continue to slowly diminish.
VFR conditions expected Sunday into Monday night,
with gusty winds as high as 25 kts possible. Winds are expected
to taper down on Monday. Rain showers expected to start on
Tuesday and remain into Wednesday causing sub-VFR conditions
over the terminals.
&&
.MARINE...
A cold front will pass through the waters overnight. Low
pressure will rapidly intensify off the New England coast Friday
before slowly drifting east Friday night through Saturday.
Strong northwest winds are expected late tonight through Friday
night. A Gale Warning is in effect for the waters late tonight
and a Storm Warning is in effect for the waters Friday through
Friday night. Gusts of 50 to 60 knots are expected during this
time.
Gusty winds will continue Saturday through Saturday night but
they will be gradually diminishing during this time. A Gale
Warning will likely be needed for the waters Saturday and
possibly into Saturday night.
SCA expected Sunday into Sunday night as low pressure
system moves away from our area. Winds will be on the decrease
on Monday and remain below SCA criteria into Tuesday night.
&&
.TIDES/COASTAL FLOODING...
Strong northwest winds will develop late tonight and continue
through Saturday. Tidal blowout conditions are expected,
especially later Friday through Saturday. Water levels of 2 to 3
feet below MLLW are possible during this time, especially near
times of low tide.
&&
.LWX WATCHES/WARNINGS/ADVISORIES...
DC...High Wind Warning from midnight tonight to 6 AM EST Saturday
for DCZ001.
MD...High Wind Warning from 11 PM this evening to 6 AM EST Saturday
for MDZ003-501-502.
Winter Weather Advisory until 10 AM EST Friday for MDZ501.
High Wind Warning from midnight tonight to 6 AM EST Saturday
for MDZ004-005-013-014-016>018-503>506.
High Wind Warning from 7 AM Friday to 6 AM EST Saturday for
MDZ006-011-507-508.
VA...High Wind Warning from 11 PM this evening to 6 AM EST Saturday
for VAZ025>031-503-504-507-508.
Winter Weather Advisory until 10 AM EST Friday for VAZ503.
High Wind Warning from midnight tonight to midnight EST Friday
night for VAZ036>039-050-051-056.
High Wind Warning from midnight tonight to 6 AM EST Saturday
for VAZ040-052>055-057-501-502-505-506.
WV...High Wind Warning from 11 PM this evening to 6 AM EST Saturday
for WVZ050>053-055-501>506.
Winter Weather Advisory until 10 AM EST Friday for WVZ501-503-
505.
MARINE...Storm Warning from 6 AM Friday to 6 AM EST Saturday for
ANZ530>543.
Gale Warning from midnight tonight to 6 AM EST Friday for
ANZ530>543.
&&
SYNOPSIS...BJL
NEAR TERM...BJL/MM
SHORT TERM...BJL/MM
LONG TERM...IMR
AVIATION...BJL/MM/IMR
MARINE...BJL/MM/IMR
TIDES/COASTAL FLOODING...BJLHazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 408 PM EST Thu Mar 1 2018 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-022115- 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- 408 PM EST Thu Mar 1 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...Tonight A High Wind Warning is in effect for the southern suburbs of Baltimore, central and southern Maryland and the Washington Metropolitan area, beginning at midnight. Damaging winds are likely, which may result in wind damage and power outages. A Gale Warning is effect for the waters beginning at midnight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A High Wind Warning is in effect for the entire area Friday through Friday night. Damaging winds are expected, which will result in widespread wind damage and numerous power outages. A Storm Warning is in effect for all the waters for Friday through Friday night. Gale conditions are expected Saturday and possibly into 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>506-022115- 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- 408 PM EST Thu Mar 1 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...Tonight A High Wind Warning is in effect for the entire area late tonight. Damaging winds are expected, which may result in wind damage and power outages. A Winter Weather Advisory is in effect...beginning at 10 pm tonight for locations along and west of the Allegheny Front. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A High Wind Warning continues through Friday night. Damaging winds are expected, which will result in widespread wind damage and numerous power outages. A Winter Weather Advisory is in effect until 10 AM on Friday for locations along and west of the Allegheny Front. .SPOTTER INFORMATION STATEMENT... Please report any wind damage to the National Weather Service.
The national radar mosaic for the moment the first event began.
11 high wind. Local standard time, as filed.
The 911 center reported around 43 calls due to downed trees and poles.
The 911 center reported around 43 calls due to downed trees and poles.
The 911 center reported around 15 calls due to trees and wires down.
The 911 center reported around 39 calls due to wind damage, including downed trees and power poles.
The 911 center reported around 39 calls due to wind damage, including downed trees and power poles. A wind gust of 59 mph was reported in Petersburg. An outbuilding was flattened in Petersburg.
The 911 center reported around 25 calls due to wind damage across Pendleton County, including downed trees and power poles.
The 911 center reported around 25 calls due to wind damage across Pendleton County, including downed trees and power poles. A wind gust of 64 mph was reported near Brush Run.
A wind gust of 58 mph was measured at the Martinsburg Airport. Numerous trees were reported down across Berkeley County. Roofing from a mobile home was removed near Inwood. A Gas Station sign was blown out near Berkeley. The Berkeley County 911 Center reported over 100 calls of trees and power lines down due to high winds.
The 911 center reported around 72 calls due to wind damage, including trees and wires down.
The 911 center reported around 22 calls due to wind damage, including downed trees and electrical poles.
A wind gust of 58 mph was reported near Bakerton. A roof was ripped off an autobody shop at the 18400 Block of Jefferson Davis Highway. The 911 Center reported around 80 reports of downed trees and power lines.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2018Every state in 2018This day in weather historyWarnings in West Virginia, March 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 747305, 747306, 747307, 747309, 747310, 747312, 747313, 747299, 747302, 747304, 747301.