436
FXUS61 KLWX 201936
AFDLWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
236 PM EST THU FEB 20 2025
SYNOPSIS
AN AREA OF LOW PRESSURE SHIFTS AWAY FROM THE AREA THROUGH
TONIGHT, WITH SNOW SHOWERS IN NORTHERN MARYLAND THROUGH THIS
EVENING. HIGH PRESSURE RETURNS LATE IN THE WEEK. A FRONTAL
SYSTEM MAY APPROACH THE AREA BY EARLY NEXT WEEK.
NEAR TERM /THROUGH TONIGHT/
A STRONG UPPER TROUGH MOVING ACROSS THE AREA THIS AFTERNOON IS
PRODUCING SCATTERED SNOW SHOWERS OVER NORTH/NORTHEAST MD. WHILE
THESE ARE GENERALLY FAST MOVING, THEY ARE CAUSING SOME REDUCED
VISIBILITY AND GUSTY WINDS. THE ROAD TEMPS APPEAR TO BE HIGH
ENOUGH AT THIS TIME TO PREVENT ANY SIGNIFICANT ISSUES, THOUGH
DRIVERS SHOULD USE CAUTION IF DRIVING THROUGH AREAS OF RAPIDLY
CHANGING VISIBILITY.
ELSEWHERE, UPSLOPE MOUNTAIN SNOW SHOWERS WILL CONTINUE IN THE
ALLEGHENIES INTO TONIGHT. WINTER WEATHER ADVISORIES ARE IN
EFFECT ALONG/WEST OF THE ALLEGHENY FRONT. ADDITIONAL SNOW
ACCUMULATIONS OF 2-3 INCHES ARE EXPECTED, TOTALLY AROUND 3-5
INCHES BY DAYBREAK FRIDAY. A FEW FLURRIES ARE POSSIBLE SOUTH
TO I-66, OTHERWISE DRY FOR THE REST OF TODAY/TONIGHT.
COLD AND BLUSTERY CONDITIONS PERSIST THROUGH TONIGHT. THE
STRONGEST WIND GUSTS OF 25-35MPH ARE EXPECTED THIS EVENING,
THEN DECREASING TO 20-25MPH OVERNIGHT. STRONGER GUSTS OF
35-40MPH IN THE MOUNTAINS. WIND CHILLS IN THE SINGLE DIGITS FOR
MOST OF THE AREA TONIGHT. IN PARTS OF THE ALLEGHENIES, WIND
CHILLS BELOW -10F ARE EXPECTED, AND THAT IS WHERE COLD WEATHER
ADVISORIES ARE IN EFFECT.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
UPSLOPE SNOW SHOWERS CONTINUE IN THE ALLEGHENIES FRIDAY MORNING,
THEN QUICKLY TAPER OFF IN THE AFTERNOON. THE WINTER WEATHER
ADVISORY REMAINS IN EFFECT THROUGH 7AM FRIDAY FOR MOST OF THE
ACCUMULATING SNOW, WITH ONLY A FEW TENTHS EXPECTED AFTER THAT.
ELSEWHERE, DRY, COLD, AND WINDY CONDITIONS ARE EXPECTED FRIDAY.
HIGHS LIKELY GET INTO THE MID TO UPPER 30S EAST OF THE
MOUNTAINS DURING THE DAY, WITH GUSTS 25 TO 35 MPH POSSIBLE
BEFORE SUBSIDING LATER IN THE DAY. ABUNDANT SUNSHINE IS EXPECTED
DURING THE DAY ON FRIDAY AND INTO SATURDAY AS HIGH PRESSURE
SETTLES NEARBY. HIGHS ON SATURDAY WILL BE IN THE 40S, WITH A
MIX OF SUN AND CLOUDS AND LIGHTER WINDS FROM SOUTH/SOUTHWEST.
LONG TERM /SUNDAY THROUGH THURSDAY/
UPPER LEVEL PATTERN NEXT WEEK WILL BE LARGELY NORTHERN STREAM
DOMINANT WITH ONLY WEAK DISTURBANCES MOVING ACROSS THE REGION AND
LIMITED MOISTURE. ONLY A COUPLE OF OPPORTUNITIES FOR PRECIPITATION
APPEAR POSSIBLE NEXT WEEK, WHICH SHOULD BE MOSTLY RAIN AS
TEMPERATURES WILL BE IN THE 50S, EXCEPT FOR RAIN/SNOW MIX AT HIGHER
ELEVATIONS. A STRONGER, WETTER SYSTEM IS POSSIBLE FOR NEXT THU.
TEMPERATURES WILL REMAIN LARGELY ABOVE NORMAL BOTH DAY AND
NIGHT MUCH OF NEXT WEEK.
AVIATION /19Z THURSDAY THROUGH TUESDAY/
PASSING SNOW SHOWERS AROUND BWI AND MTN THROUGH LATE AFTERNOON,
OTHERWISE VFR CONDITIONS EXPECTED. THE MAIN IMPACT GOING FORWARD
WILL COME FROM GUSTY NORTHWEST WINDS. GUSTS AROUND 25-30 KNOTS
THROUGH THIS EVENING, THEN DECREASING TO AROUND 15-25 KNOTS
TONIGHT, INCREASING TO 20-30 KNOTS FRIDAY. LIGHTER WINDS
PREVAIL OUT OF THE SOUTH ON SATURDAY. GUSTY SOUTHERLY WINDS
MONDAY.
MARINE
WINDS HAVE INCREASED EARLY THIS AFTERNOON, AND WILL CONTINUE TO
INCREASE THIS EVENING - REACHING GALE FORCE ACROSS ALL THE
WATERS. WHILE THE MORE PERSISTENT GALE-FORCE GUSTS WILL OCCUR
OVER THE CHESAPEAKE BAY, EXPECT OCCASIONAL GALE GUSTS IN THE
SMALLER RIVERS, BAYS, AND TRIBUTARIES.
GALE CONDITIONS MAY PERSIST INTO FRIDAY MORNING, ESPECIALLY OVER THE
MORE SOUTHERN WATERS. ALTHOUGH NORTHWESTERLY WINDS DIMINISH IN
STRENGTH THROUGH THE DAY, SMALL CRAFT ADVISORIES WILL LIKELY BE
NEEDED THROUGH EARLY FRIDAY EVENING. WINDS GENERALLY DIMINISH ON
SATURDAY WITH SUB-SCA GUSTS EXPECTED. SOME SOUTHERLY CHANNELING
IS POSSIBLE IN THE MIDDLE CHESAPEAKE BAY SATURDAY NIGHT.
LIGHT WINDS EXPECTED SUNDAY, THEN SCA CONDITIONS ARE POSSIBLE
MONDAY IN SOUTHERLY FLOW.
TIDES/COASTAL FLOODING
GUSTY NORTHWESTERLY WIND THAT PERSIST FOR THE NEXT FEW DAYS WILL
HELP KEEP WATER OUT OF THE BAY, RESULTING IN LOW WATER ISSUES
FOR MANY LOCATIONS. THIS WILL BE ESPECIALLY EVIDENT DURING THE
LOW TIDE CYCLES. SOME IMPROVEMENTS ARE POSSIBLE OVER THE
WEEKEND AS WINDS TURNS MORE SOUTHERLY.
LWX WATCHES/WARNINGS/ADVISORIES
DC...NONE.
MD...WINTER WEATHER ADVISORY UNTIL 7 AM EST FRIDAY FOR MDZ001.
VA...WINTER WEATHER ADVISORY UNTIL 7 AM EST FRIDAY FOR VAZ503.
COLD WEATHER ADVISORY UNTIL 10 AM EST FRIDAY FOR VAZ503-504.
WV...WINTER WEATHER ADVISORY UNTIL 7 AM EST FRIDAY FOR WVZ501-505.
COLD WEATHER ADVISORY UNTIL 10 AM EST FRIDAY FOR WVZ501-505-
506.
MARINE...GALE WARNING UNTIL 10 AM EST FRIDAY FOR ANZ530>534-537-539>541-
543.
GALE WARNING UNTIL 1 AM EST FRIDAY FOR ANZ535-536-538-542.
SMALL CRAFT ADVISORY FROM 1 AM TO 10 AM EST FRIDAY FOR ANZ535-
536-538-542.
SYNOPSIS...KRR/ADM
NEAR TERM...KRR
SHORT TERM...KRR/ADM
LONG TERM...LFR
AVIATION...KRR/ADM/LFR
MARINE...KRR/ADM/LFR
TIDES/COASTAL FLOODING...KRR/BRO
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page