933
FXUS61 KCAR 201457
AFDCAR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CARIBOU ME
1057 AM EDT MON APR 20 2026
WHAT HAS CHANGED
- 11AM UPDATE: ADJUSTED THE FORECAST TO INCLUDE MORE SCATTERED
SHOWERS THAT WE ARE SEEING THIS MORNING.
KEY MESSAGES
1) UNSEASONABLY COOL TEMPERATURES TO START THE WEEK, WITH NO
BIG STORM SYSTEMS EXPECTED THROUGH THE WEEK.
DISCUSSION
KEY MESSAGE 1...
UNSEASONABLY COOL TEMPERATURES TO START THE WEEK, WITH NO BIG
STORM SYSTEMS EXPECTED THROUGH THE WEEK.
KEY MESSAGE 1 DESCRIPTION...
UPPER LEVEL TROUGH WILL PERSIST OVER THE NORTHEAST U.S. WHILE A
H5 RIDGE BUILDS FROM THE INTERMOUNTAIN WEST INTO THE GREAT LAKES
THRU THE END OF THE WEEK. 1000-500MB THICKNESSES WILL REMAIN BELOW
530 DM THROUGHOUT THE WEEK WITH HIGH TEMPERATURES BELOW NORMAL
THROUGH FRIDAY. LOW TEMPERATURES WILL START OFF BELOW FREEZING
TONIGHT AND REMAIN AT OR BELOW FREEZING EACH NIGHT THROUGH FRIDAY
NIGHT. ONSHORE FLOW ON WEDNESDAY WILL KEEP THE COAST COOL WITH
TEMPS REMAINING AROUND 40 AND POSSIBLY IN THE UPPER 30S OVER THE
OUTER ISLANDS. OTHER THAN WEAK UPPER LEVEL SYSTEMS BRINGING LOW
CHANCES FOR SHOWERS TODAY, THEN AGAIN WEDNESDAY INTO THURSDAY, NO
SIGNIFICANT STORMS ARE EXPECTED THROUGH THE WEEK. WITH THE
EXCEPTION OF TUESDAY, WHEN MINIMUM RELATIVE HUMIDITY VALUES ARE
EXPECTED TO FALL BELOW 30 PERCENT, MINIMUM RH VALUES LOOK TO
REMAIN ABOVE 35% THROUGH FRIDAY. HOWEVER, WITH LIGHT WINDS
EXPECTED, FIRE WX CONCERNS APPEAR TO BE MINIMAL.
AVIATION /14Z MONDAY THROUGH FRIDAY/
MAINLY VFR THROUGH TUESDAY. NW WIND 10 TO 15 KT WITH GUSTS 20
KT TODAY, LIGHT AND VARIABLE TONIGHT, AND THEN W 5 TO 10 KT
EARLY TUESDAY, BECOMING S IN THE AFTERNOON.
TUESDAY NIGHT...MAINLY VFR. S 5KTS.
WEDNESDAY...MVFR/IFR POSSIBLE IN SHOWERS AND LOW CIGS. S 5-10KTS.
WEDNESDAY NIGHT-THURSDAY...MVFR IN SHOWERS. LIGHT S BECOMING NW LATE
WED NIGHT INCREASING TO 5-10KTS THURSDAY MORNING.
THURSDAY NIGHT-FRIDAY...VFR. NNW 5-15KTS.
MARINE
WINDS AND SEAS ARE EXPECTED TO REMAIN BELOW SCA CRITERIA
THROUGH THE PERIOD.
CAR WATCHES/WARNINGS/ADVISORIES
ME...NONE.
MARINE...NONE.
DISCUSSION...21/TWD/ARL
AVIATION...21/TWD
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