088
FXUS61 KCAR 201754
AFDCAR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CARIBOU ME
154 PM EDT WED MAY 20 2026
WHAT HAS CHANGED
- NO SIGNIFICANT CHANGES.
KEY MESSAGES
1) NEAR FREEZING TEMPERATURES OVER THE NORTH THURSDAY NIGHT AND
FRIDAY NIGHT MAY LEAD TO WIDESPREAD FROST, ESPECIALLY IN COLDER
VALLEYS. THIS MAY LEAD TO DAMAGE TO SENSITIVE VEGETATION.
DISCUSSION
KEY MESSAGE 1...
KEY MESSAGE 1 DESCRIPTION...
DRY AIRMASS WILL CONTINUE TO MOVE INTO THE REGION ON NORTHERLY
FLOW ON FRIDAY. 1035MB SFC HIGH PRESSURE WILL BE BUILDING SOUTH
OUT OF CANADA AND DEPENDING ON HOW QUICKLY IT CRESTS OVER THE
STATE WILL DETERMINE HOW LOW TEMPS CAN FALL. CURRENT THINKING IS
THAT WHILE AIRMASS WILL BE VERY SLOWLY MODERATING FROM FRIDAY
MORNING CONTINUED FROST THREAT REMAINS FOR SATURDAY MORNING.
WITH HIGH PRESSURE AXIS JUST TO THE WEST OF CWA LATE THURSDAY
NIGHT AND AGAIN FRIDAY NIGHT, LOWER VALLEYS SHOULD DECOUPLE
BRINGING IDEAL RADIATIONAL COOLING TO THE AREA LATE. THIS SHOULD
RESULT IN AREAS OF FROST THURSDAY NIGHT AND WIDESPREAD FROST FRIDAY
NIGHT OVER NORTHERN AROOSTOOK, NORTHERN PISCATAQUIS AND
NORTHERN SOMERSET COUNTIES. THIS WILL BRING DAMAGE TO ANY
OUTDOOR PLANTS AND VEGETATION OVER THESE AREAS. FROST LOOKS
LIKELY TO THE NORTH AND EAST OF THE CENTRAL HIGHLANDS.
AVIATION /18Z WEDNESDAY THROUGH MONDAY/
REST OF THIS AFTERNOON...VFR WITH GUSTY W WIND. ISLD -SHRA.
TONIGHT THROUGH THURSDAY NIGHT...HIGH CONFIDENCE IN VFR THROUGH THE
PERIOD. W TO NW WIND 10 TO 15 KT WITH GUSTS UP TO 25 KT THROUGH
THURSDAY, THEN LIGHT AND VARIABLE THURSDAY NIGHT.
FRIDAY-SATURDAY NIGHT...VFR. NW WINDS 10-15KTS GUSTING TO 25KTS
FRIDAY, OTHERWISE NW 5-10KTS.
SUNDAY...VFR. S WINDS 5-15KTS.
SUNDAY NIGHT-MONDAY...VFR/MVFR SUNDAY NIGHT, POSSIBLY DROPPING
TO IFR MONDAY IN RAIN. SSE WINDS 5-10KTS.
MARINE
WINDS/SEAS ARE EXPECTED TO REMAIN BELOW SCA LEVELS THROUGH
THURSDAY NIGHT.
WINDS AND SEAS LIKELY TO REMAIN BELOW SMALL CRAFT LEVELS THROUGH
EARLY NEXT WEEK. WINDS SHOULD REMAIN WELL BELOW SCA LEVELS THIS
WEEKEND WITH WINDS AROUND 5KTS AND SEAS 1-2 FEET OR LESS.
CAR WATCHES/WARNINGS/ADVISORIES
ME...NONE.
MARINE...NONE.
DISCUSSION...21/TWD
AVIATION...21/TWD
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