351
FXUS61 KLWX 140759
AFDLWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
359 AM EDT TUE APR 14 2026
WHAT HAS CHANGED
SMALL CRAFT ADVISORY HAS BEEN ISSUED FOR ALL THE WATERS FOR
THIS AFTERNOON INTO THIS EVENING. A SPECIAL WEATHER STATEMENT
FOR ELEVATED FIRE WEATHER MAY BE REQUIRED LATER TODAY. FIRE
WEATHER WATCHES MAY BE REQUIRED FOR BOTH WED AND THU.
KEY MESSAGES
- RECORD HIGH MINIMUM AND HIGH MAXIMUM TEMPERATURES EXPECTED
WEDNESDAY AND THURSDAY WITH AN ELEVATED FIRE WEATHER RISK EACH
AFTERNOON.
DISCUSSION
KEY MESSAGE 1...RECORD HIGH MINIMUM AND HIGH MAXIMUM TEMPERATURES EXPECTED
WEDNESDAY AND THURSDAY WITH AN ELEVATED FIRE WEATHER RISK EACH
AFTERNOON.
KEY MESSAGE 1 DESCRIPTION...
HI-RES MODELS INDICATE CONVECTION DEVELOPING LATE TODAY ACROSS
PENNSYLVANIA MAY REACH NORTHERN MD THIS EVENING BEFORE DISSIPATING
BY MIDNIGHT AS IT MOVES EAST SOUTHEAST. THERE IS ALSO A SLIGHT
CHANCE OF AN AFTERNOON SHOWER OR THUNDERSTORM OVER THE ALLEGHENY
AND BLUE RIDGE MOUNTAINS DUE TO TERRAIN CIRCULATIONS.
OTHERWISE, UPPER LEVEL RIDGE WILL REMAIN THE DOMINANT WEATHER
FEATURE, CRESTING OVER THE AREA THURSDAY SUPPORTING RECORD
WARMTH AND DRY CONDITIONS. WHILE MODELS HAVE SHOWN A SLIGHT
WARM BIAS IN TEMPERATURES RECENTLY, MODEL TRENDS SUPPORT 92-93
DEGS WED AND THU RESPECTIVELY. DEWPOINTS WILL REMAIN IN THE 50S,
WHICH IS CONSIDERABLE COMFORTABLE. AS FOR CONVECTION, VERY
NEGIGIBLE CHANCE OF CONVECTION WED AND THU AS UPPER RIDGE CRESTS
OVER THE AREA.
AVIATION /07Z TUESDAY THROUGH SATURDAY/
GUSTY AFTERNOON SW WINDS UP TO 25 KT BETWEEN 17Z AND 23Z.
A SLIGHT CHANCE OF A SHOWER OR THUNDERSTORM, MAINLY AT KMRB.
SIMILAR WINDS WED AND THU, WITH NO CHANCE OF CONVECTION. SOME
RISK OF CONVECTION FRI.
MARINE
SCA ISSUED FOR ALL THE WATERS VALID 17Z-00Z. CONDITIONS WILL
LIKELY REPEAT ITSELF BOTH WED AND THU. RISK OF THUNDERSTORMS
FRI.
FIRE WEATHER
ELEVATED FIRE WEATHER RISK TODAY THROUGH THU DUE TO VERY WARM
TEMPERATURES, MARGINALLY LOW HUMIDITIES, AND GUSTY AFTERNOON
WINDS OF 20-25 MPH. WED AND THU WILL HAVE THE LOWEST HUMIDITIES
WITH VALUES IN THE MID 20S. AN RFW MAY BE NEEDED FOR BOTH WED
AND THU.
CLIMATE
RECORD HI MAX SEEM UNLIKELY TODAY, BUT RECORD HI LOW SEEM MORE
LIKELY. WED AND THU LIKELY TO SEE NEW RECORDS SET AS HIGHS
REACH 92-93 DEGS.
MANY DAILY RECORDS ARE LIKELY TO BE BROKEN THIS WEEK, FOR BOTH
HIGH TEMPERATURES AND WARM LOW TEMPERATURES. SOME STATIONS COULD
TIE OR SET THEIR ALL-TIME HIGH TEMPERATURE AND WARM LOW
TEMPERATURE RECORDS FOR THE MONTH OF APRIL.
APRIL 14
LOCATIONRECORD HIGHRECORD WARM LOW
WASHINGTON-NATIONAL (DCA)91F (1960) 65F (2014)
WASHINGTON-DULLES (IAD) 87F (1960) 63F (2014)
BALTIMORE (BWI) 91F (1941) 65F (2018)
BALTIMORE INNER HARBOR (DMH) 90F (1960) 67F (2018)
MARTINSBURG (MRB) 87F (1960) 62F (2014)
CHARLOTTESVILLE (CHO) 90F (1945) 67F (1899)
ANNAPOLIS(NAK) 90F (1941) 65F (1977)
HAGERSTOWN (HGR) 86F (2024) 64F (2014)
APRIL 15
LOCATIONRECORD HIGHRECORD WARM LOW
WASHINGTON-NATIONAL (DCA)89F (1941) 65F (2023)
WASHINGTON-DULLES (IAD) 87F (1967) 62F (2023)
BALTIMORE (BWI) 88F (1941) 65F (1941)
BALTIMORE INNER HARBOR (DMH) 92F (2024) 67F (1960)
MARTINSBURG (MRB) 90F (1941) 63F (1967)
CHARLOTTESVILLE (CHO) 92F (2024) 68F (1941)
ANNAPOLIS(NAK) 91F (1941) 68F (1994)
HAGERSTOWN (HGR) 85F (1960) 61F (2023)
APRIL 16
LOCATIONRECORD HIGHRECORD WARM LOW
WASHINGTON-NATIONAL (DCA)92F (2002) 65F (2017)
WASHINGTON-DULLES (IAD) 91F (2002) 63F (2017)
BALTIMORE (BWI) 90F (2012) 66F (1941)
BALTIMORE INNER HARBOR (DMH) 91F (2012) 65F (2012)
MARTINSBURG (MRB) 90F (2002) 63F (2017)
CHARLOTTESVILLE (CHO) 92F (1976) 67F (1941)
ANNAPOLIS(NAK) 89F (2017) 70F (1994)
HAGERSTOWN (HGR) 88F (2002) 62F (2002)
APRIL 17
LOCATIONRECORD HIGHRECORD WARM LOW
WASHINGTON-NATIONAL (DCA) 95F (2002)65F (2002)
WASHINGTON-DULLES (IAD) 93F (2002)59F (2024)
BALTIMORE (BWI) 93F (2002)66F (1896)
BALTIMORE INNER HARBOR (DMH) 95F (2002)66F (1976)
MARTINSBURG (MRB) 93F (2002)60F (1941)
CHARLOTTESVILLE (CHO) 94F (1976)65F (1976)
ANNAPOLIS(NAK) 90F (1976)68F (1994)
HAGERSTOWN (HGR) 90F (2002)64F (2002)
ALL-TIME APRIL RECORD HIGHS:
WASHINGTON-NATIONAL (DCA)95F 4/17/2002, 4/18/1976, 4/23/1960
4/27/1915
WASHINGTON-DULLES (IAD) 93F 4/6/2010, 4/17/2002, 4/25/1960
BALTIMORE (BWI) 94F 4/25/1960, 4/23/1960, 4/20/1941,
4/18/1896
BALTIMORE INNER HARBOR (DMH) 98F 4/26/1990, 4/22/1985
MARTINSBURG (MRB) 96F 4/21/1941
CHARLOTTESVILLE (CHO) 98F 4/24-25/1925
ANNAPOLIS(NAK) 95F 4/20/1941
HAGERSTOWN (HGR) 94F 4/6/2010, 4/18/1976, 4/26/1915
ALL-TIME APRIL RECORD WARM-LOWS:
WASHINGTON-NATIONAL (DCA)70F 4/29/2017
WASHINGTON-DULLES (IAD) 68F 4/27/2011
BALTIMORE (BWI) 70F 4/19/1896
BALTIMORE INNER HARBOR (DMH) 76F 4/26/1990
MARTINSBURG (MRB) 69F 4/19/2025
CHARLOTTESVILLE (CHO) 72F 4/26/1915
ANNAPOLIS(NAK) 70F 4/28/1994, 4/16/1994, 4/18/1896
HAGERSTOWN (HGR) 69F 4/27/2009
LWX WATCHES/WARNINGS/ADVISORIES
DC...NONE.
MD...SMALL CRAFT ADVISORY FROM 1 PM THIS AFTERNOON TO 8 PM EDT THIS
EVENING FOR MDZ008.
VA...NONE.
WV...NONE.
MARINE...SMALL CRAFT ADVISORY FROM 1 PM THIS AFTERNOON TO 8 PM EDT THIS
EVENING FOR ANZ530>543.
DISCUSSION...LFR
AVIATION...LFR
MARINE...LFR
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