Severe Thunderstorm Warning 2, NWS Baltimore/Washington

975 
WWUS51 KLWX 251911
SVSLWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
211 PM EST FRI FEB 25 2011

MDC003-009-017-033-251930-
/O.CON.KLWX.SV.W.0002.000000T0000Z-110225T1930Z/
ANNE ARUNDEL MD-PRINCE GEORGES MD-CALVERT MD-CHARLES MD-
211 PM EST FRI FEB 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EST
FOR NORTHEASTERN CHARLES...EXTREME NORTHWESTERN CALVERT...SOUTHERN
PRINCE GEORGES AND EXTREME SOUTHWESTERN ANNE ARUNDEL COUNTIES...

AT 210 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES NORTHEAST OF
WALDORF...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  AQUASCO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WIND GUSTS. MOVE INDOORS TO A STURDY 
BUILDING AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3876 7687 3876 7667 3852 7670 3866 7699
TIME...MOT...LOC 1911Z 292DEG 26KT 3869 7682

$$

KRAMAR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1002 AM EST FRI FEB 25 2011

.SYNOPSIS...
LOW PRESSURE WILL TRACK ACROSS THE NORTHERN APPALACHIANS AND THROUGH
PENNSYLVANIA TODAY. A STRONG COLD FRONT WILL MOVE THROUGH THE MID
ATLANTIC THIS AFTERNOON. HIGH PRESSURE MOVES INTO THE REGION FOR
THE WEEKEND. A COLD FRONT WILL LIKELY BRING RAIN TO THE AREA
MONDAY...WITH HIGH PRESSURE RETURNING FOR THE MIDDLE OF NEXT WEEK.

&&

.NEAR TERM /TODAY/...

WE WL BE LAUNCHING A SPL 16Z BALLOON.

STRONG COLD FNT NOW ON OUR WRN DOORSTEP. PD OF STRONG CAA/PRES
SURGE STILL XPCTD THIS AFTN. OUR EYES WL ESPECIALLY BE ON THE LN
OF RW AS IT MOVES E OF THE MTNS - VWP SHOWING 40-50 KT AT 010-020
WHICH COULD EASILY MIX DOWN W/ PCPN. IF NEEDED WE MAY BE ISSUING
SPL PRODUCTS FOR CELLS IN ADTN TO THE WIND ADVSRY/WRNG ALREADY IN EFFECT.

STRONG CAA BEHIND THE FRONT WILL ALLOW UPSLOPE PRECIP ALONG THE
WRN SLOPES OF THE ALLEGHENY FRONT TO CHANGE MIX WITH AND THEN
CHANGE TO SN DURING THE AFTN. SNOWFALL ACCUMULATIONS SHOULD BE
LIGHT AS GROUND TEMPS WILL TAKE LONGER TO COOL ENOUGH FOR SNOW TO
STICK.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/...

COLD FRONT WILL HAVE MOVED THROUGH THE AREA BY 00Z SAT. STRONGEST
WINDS WILL HAVE LIKELY SUBSIDED...BUT THERE MAY BE A LINGERING
PERIOD OF WIND ADVISORY GUSTS THAT LAST UNTIL 03Z OR SO IN THE SURGE
BEHIND THE FRONT. CLOUDS AND EVEN A FEW SNOW SHOWERS WILL OCCUR OVER
THE WESTERN SLOPES OF THE HIGHLANDS BUT THE REST OF THE CWA BE
GENERALLY CLEAR OUT FOR THE THE EVENING BEFORE SOME HIGH CLOUDS
START ROLLING BACK IN OVERNIGHT. TEMPERATURES WILL BE COLDER WITH
LOWS IN THE UPPER 20S IN DOWNTOWN WASHINGTON AND BALTIMORE...MID 20S
IN THE SUBURBS AND LOWER 20S ACROSS THE HIGHLANDS.

HIGH PRESSURE OVER THE AREA TO BEGIN SATURDAY WILL QUICKLY MOVE OFF
THE COAST LATER IN THE AFTERNOON AND AT NIGHT. COULD BE SOME PEEKS
OF SUNSHINE IN THE MORNING BUT THE BULK OF SATURDAY IS EXPECTED TO
BE MOSTLY CLOUDY WITH TEMPERATURES SLIGHTLY BELOW CLIMATOLOGY.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...

WARM FRONT IS PROGGED TO RISE NORTH INTO THE CWA LATER SATURDAY
NIGHT INTO SUNDAY. CANT RULE OUT A FEW SHOWERS DUE TO ISENTROPIC
LIFT NORTH OF THE BOUNDARY MAINLY ACROSS NORTH AND WEST PORTIONS OF
THE CWA. TEMPERATURES ARE EXPECTED TO BE BACK ABOVE CLIMO FOR
SUNDAY...COOLEST NORTH AND WARMEST SOUTH DUE TO PRESENCE OF THE WARM
FRONT.

BETTER CHANCES OF SHOWERS COME SUNDAY NIGHT INTO MONDAY. LOW
PRESSURE MOVING THROUGH THE GREAT LAKES AND NEW ENGLAND WILL DRAG A
COLD FRONT THROUGH THE CWA MONDAY AFTERNOON INTO EVENING. DESPITE
CLOUDS...MONDAY SHOULD ABOVE CLIMO AS WELL AND LIKELY THE WARMEST
DAY OF THE NEXT WEEK OR SO...THEN COLDER AIR MOVES IN FOR THE REST
OF THE WEEK BUT WITH HIGH PRESSURE IN CONTROL IT SHOULD BE DRY.

&&

.AVIATION /15Z FRIDAY THROUGH TUESDAY/...

ONE BAND OF RA MOVG INTO CHES BAY. THE NEXT BAND IS IN ERN W.V.
AND IS ASSO W/ A STRONG CD FNT. THERE IS THE PSBLTY THAT STRONG
GUSTY WINDS WL BE BROUGHT TO THE SFC W/ THESE RW. WINDS AT
FL010-020 AT SSW AT 40-50 KT. LO LVL WIND SHR/TURB AT ALL TAF
SITES THRU ERLY AFTN. THEN STRONG NW WINDS BEHIND THE FNT.

MRB WAS 1/4 SM FOR SVRL HRS. I CALLED THE TOWER TO VERIFY - IT WAS
TRUE. "WE'RE IN A HOLE" THE TOWER SAID. BUT W/ THE APRCHG FNT
VSBYS SHOULD BE IMPROVG.

HIGH PRESSURE BUILDS IN FOR OVERNIGHT FRIDAY AND SATURDAY FOR
LESS WIND AND VFR CONDITIONS. WARM FRONT APPROACHES SATURDAY NIGHT
INTO SUNDAY...THEN A COLD FRONT WILL BRING A CHANCE OF SHOWERS
MONDAY. WINDS SHIFT TO THE NORTHWEST AND MAY BE GUSTY FOR TUESDAY.
HIGH PRESSURE RETURNS FOR THE MID WEEK.

&&

.MARINE...

A WARM FRONT WILL MOVE NORTHWARD THRU THE WATERS DURING THE ERY TO
MID MRNG. WINDS WILL QUICKLY INCREASE FROM SOUTH TO NORTH BETWEEN
30-40 KT BEHIND THE FRONT DURING THE MRNG. GALE WRNG HAS BEEN ISSUED
TO COVER THIS THREAT. A COLD FRONT WILL THEN PASS THRU THE WATERS
THIS AFTN. A LINE OF CONVECTION MAY DEVELOP IN THE ERY-MID AFTN
AHEAD OF THE FRONT. THIS ACTIVITY WOULD BE CAPABLE OF TRANSPORTING
STRONG WINDS. HEADLINES RAMP UP TO A STORM WRNG BY THE LATE AFTN AS
W-NW WINDS WILL PRODUCE WIND GUSTS UP TO 50 KT AS A STRONG PRESSURE
SURGE OCCURS BEHIND THE COLD FRONT.

GALES WILL LIKELY LINGER INTO THE EVENING HOURS...AND THEREFORE HAVE
RAMPED DOWN FROM STORM WARNING TO GALES FOR THIS EVENING. AFTER
THAT...A PERIOD OF SMALL CRAFT ADVISORY WINDS ARE POSSIBLE
OVERNIGHT. HIGH PRESSURE BUILDS IN SATURDAY FOR LESS WIND. NEXT
CHANCE OF SHOWERS IS SUNDAY NIGHT/MONDAY AS A COLD FRONT MOVES
ACROSS THE REGION. SMALL CRAFT ADVISORY CONDITIONS ARE POSSIBLE ON
TUESDAY.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST THIS
     EVENING FOR DCZ001.
     WIND ADVISORY UNTIL 2 PM EST THIS AFTERNOON FOR DCZ001.
MD...HIGH WIND WARNING UNTIL 7 PM EST THIS EVENING FOR MDZ003-501-
     502.
     HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST THIS
     EVENING FOR MDZ004>007-009>011-013-014-016>018.
     WIND ADVISORY UNTIL 2 PM EST THIS AFTERNOON FOR MDZ004>007-
     009>011-013-014-016>018.
VA...HIGH WIND WARNING UNTIL 7 PM EST THIS EVENING FOR VAZ025>031-
     036>038-503-504.
     HIGH WIND WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST THIS
     EVENING FOR VAZ039-040-042-050>057-501-502.
     WIND ADVISORY UNTIL 2 PM EST THIS AFTERNOON FOR VAZ039-040-042-
     050>057-501-502.
WV...HIGH WIND WARNING UNTIL 7 PM EST THIS EVENING FOR WVZ050>053-
     055-501>506.
MARINE...STORM WARNING FROM 2 PM THIS AFTERNOON TO 7 PM EST THIS
     EVENING FOR ANZ530>543.
     GALE WARNING UNTIL 2 PM EST THIS AFTERNOON FOR ANZ530>543.
     GALE WARNING FROM 7 PM THIS EVENING TO MIDNIGHT EST TONIGHT
     FOR ANZ530>543.

&&

UPDATE...WOODY!
PRVS...JRK/BPP

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 PM EST FRI FEB 25 2011

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
261330-
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-NORTHERN BALTIMORE-HARFORD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-
CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-
1223 PM EST FRI FEB 25 2011

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 SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE I-95 CORRIDOR OF
EASTERN MARYLAND AND NORTH CENTRAL VIRGINIA THROUGH 4 PM THIS
AFTERNOON. SCATTERED THUNDERSTORMS ARE POSSIBLE FROM NOON THROUGH
LATE AFTERNOON. SOME OF THE STORMS WILL BE CAPABLE OF PRODUCING
DAMAGING WIND GUSTS. THERE IS ALSO THE CHANCE OF AN ISOLATED
TORNADO.

A WIND ADVISORY IS IN EFFECT LATE THIS MORNING FOR THE OUTLOOK
AREA. A HIGH WIND WARNING IS IN EFFECT THIS AFTERNOON AND EARLY
EVENING. PLEASE REFER TO THE LATEST HAZARD MESSAGE /WBCNPWLWX/ FOR
DETAILS.

A GALE WARNING IS IN EFFECT THIS MORNING FOR THE TIDAL POTOMAC
RIVER AND MARYLAND CHESAPEAKE BAY...THEN A STORM WARNING IS IN
EFFECT FOR THIS AFTERNOON. THE STORM WARNING BECOMES A GALE
WARNING BY THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SMALL CRAFT ADVISORY CONDITIONS ARE POSSIBLE MONDAY THROUGH
TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE NECESSARY THIS AFTERNOON.

MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504-
WVZ050>053-055-501>506-261330-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
1223 PM EST FRI FEB 25 2011

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

SCATTERED THUNDERSTORMS ARE POSSIBLE FROM THE LATE MORNING THROUGH
THE EARLY AFTERNOON...MAINLY EAST OF THE BLUE RIDGE. SOME OF THE
STORMS WILL BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS.

A HIGH WIND WARNING IS IN EFFECT WEST OF THE BLUE RIDGE THIS
MORNING THROUGH EARLY EVENING. A WIND ADVISORY IS IN EFFECT LATE
THIS MORNING EAST OF THE BLUE RIDGE...THEN A HIGH WIND WARNING IS
IN EFFECT THIS AFTERNOON AND EARLY EVENING EAST OF THE BLUE RIDGE.
PLEASE REFER TO THE LATEST HAZARD MESSAGE /WBCNPWLWX/ FOR DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE NECESSARY THIS AFTERNOON.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 PM EST FRI FEB 25 2011

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

0122 PM     HAIL             1 SE COLUMBIA           39.19N  76.84W
02/25/2011  E0.75 INCH       HOWARD             MD   PUBLIC

&&

EVENT NUMBER LWX1100052

WOODY!

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
139 PM EST FRI FEB 25 2011

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

1254 PM     NON-TSTM WND GST 1 NNE HARRISONBURG      38.45N  78.87W
02/25/2011  M61 MPH          CITY OF HARRISONBU VA   MESONET

&&

EVENT NUMBER LWX1100053

GMS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
141 PM EST FRI FEB 25 2011

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

1255 PM     NON-TSTM WND GST 1 E HAGERSTOWN          39.64N  77.70W
02/25/2011  M59 MPH          WASHINGTON         MD   MESONET

&&

EVENT NUMBER LWX1100054

GMS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
144 PM EST FRI FEB 25 2011

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

0119 PM     NON-TSTM WND GST 1 ESE LAYTONSVILLE      39.20N  77.13W
02/25/2011  M59 MPH          MONTGOMERY         MD   MESONET

&&

EVENT NUMBER LWX1100055

GMS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
146 PM EST FRI FEB 25 2011

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

0141 PM     NON-TSTM WND GST 1 S PETERSBURG          38.98N  79.13W
02/25/2011  M60 MPH          GRANT              WV   AWOS

&&

EVENT NUMBER LWX1100056

GMS

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
146 PM EST FRI FEB 25 2011

MDZ013-014-016-VAZ053-054-251915-
ANNE ARUNDEL MD-PRINCE GEORGES MD-CHARLES MD-
ARLINGTON/FALLS CHURCH/ALEXANDRIA VA-FAIRFAX VA-
146 PM EST FRI FEB 25 2011

...STRONG THUNDERSTORMS TO AFFECT ARLINGTON...ANNE ARUNDEL...PRINCE
GEORGES...CHARLES AND FAIRFAX COUNTIES...

AT 146 PM EST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
HYBLA VALLEY...MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE OXON HILL...FRIENDLY...CAMP SPRINGS...
CLINTON...ANDREWS AFB...MARLTON AND UPPER MARLBORO.

STORM INTENSITY IS INCREASING...AND SEVERE WEATHER MAY DEVELOP
RAPIDLY. REMAIN ALERT...AND BE PREPARED TO TAKE ACTION IF WARNINGS
ARE ISSUED.

HEAVY RAIN WITH THIS STORM MAY REDUCE VISIBILITIES TO BELOW ONE MILE
AND MAY CAUSE PONDING OF WATER ON ROADWAYS.

WIND GUSTS IN EXCESS OF 50 MPH AND SMALL HAIL CAN BE EXPECTED WITH
THIS STORM. WINDS THIS STRONG CAN BRING DOWN LARGE TREE BRANCHES.
TAKE SHELTER UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3862 7674 3868 7708 3870 7712 3869 7715
      3870 7722 3878 7717 3881 7706 3874 7706
      3871 7713 3870 7713 3868 7707 3870 7704
      3878 7703 3881 7700 3883 7671
TIME...MOT...LOC 1846Z 277DEG 43KT 3874 7708

HTS