801
FXUS62 KILM 091851
AFDILM
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
251 PM EDT TUE JUN 9 2026
WHAT HAS CHANGED
DISCUSSIONS UPDATED. TEMPERATURES FOR LATE WEEK HAVE BEEN
REDUCED SLIGHTLY TO ACCOUNT FOR AN ONGOING WARM HIGH
TEMPERATURE BIAS.
KEY MESSAGES
1) INCREASINGLY HOT AND HUMID CONDITIONS ARE EXPECTED THROUGH LATE
WEEK WITH VERY LIMITED CHANCES FOR SHOWERS OR STORMS.
2) LOW RAIN CHANCES DURING THE WEEK BECOME ELEVATED OVER THE WEEKEND
AHEAD OF A COLD FRONT.
DISCUSSION
KEY MESSAGE 1... INCREASINGLY HOT AND HUMID CONDITIONS ARE EXPECTED
THROUGH LATE WEEK WITH VERY LIMITED CHANCES FOR SHOWERS OR STORMS.
KEY MESSAGE 1 DESCRIPTION...MID-UPPER RIDGING WILL REMAIN IN CONTROL
THIS WEEK WITH ITS AXIS STAYING WEST OF THE AREA WHILE HIGH PRESSURE
DOMINATES OFFSHORE AROUND BERMUDA. AS THE RIDGE STRENGTHENS ON
THURSDAY AND SHIFTS TOWARDS THE AREA ON FRIDAY, TEMPERATURES ARE
EXPECTED TO RISE WELL-ABOVE NORMAL, WITH LOW-MID 90S EXPECTED AWAY
FROM THE COAST ON THURSDAY AND MID-UPPER 90S ON FRIDAY. THE SEA
BREEZE WILL OFFER RELIEF CLOSER TO THE COAST. HOWEVER, AS THE FLOW
ALOFT BECOMES MORE WESTERLY ON FRIDAY, EXPECT THE SEA BREEZE TO HAVE
A HARDER TIME SHIFTING INLAND, ALLOWING FOR EVEN COASTAL AREAS TO
REACH THE LOW 90S. ALTHOUGH INSTABILITY WILL INCREASE AS
TEMPERATURES RISE, NO MORE THAN ISOLATED POP-UP SHOWERS AND STORMS
ARE EXPECTED THROUGH THE END OF THE WEEK, AS DRY AIR AND SUBSIDENCE
ALOFT INHIBIT DEVELOPMENT. HEAT INDEX VALUES SHOULD REACH THE UPPER
90S TO LOW 100S ON THURSDAY AND AT LEAST INTO THE LOW 100S INLAND ON
FRIDAY. WHETHER DEW POINTS STAY HIGH ENOUGH TO SUPPORT 105F OR
GREATER FOR 2+ HOURS DURING THE AFTERNOON IS QUESTIONABLE AS
MODEL GUIDANCE THIS TIME OF YEAR TENDS TO OVERESTIMATE DEW
POINTS.
THE RIDGE AXIS IS EXPECTED TO BE SHOVED EASTWARD FRIDAY NIGHT INTO
SATURDAY AS A COLD FRONT APPROACHES FROM THE NORTHWEST. ALTHOUGH
TEMPERATURES WILL STILL END UP WELL-ABOVE NORMAL ON SATURDAY DUE TO
THE RIDGE AXIS BEING NEARBY, INCREASED AFTERNOON CLOUDINESS AND
ISOLATED TO WIDELY SCATTERED SHOWERS/STORMS SHOULD GENERALLY PREVENT
MAX TEMPERATURES FROM REACHING THE SAME LEVELS AS THOSE SEEN ON
FRIDAY, ALTHOUGH THIS MAY BE ONLY 1-3F LOWER. BY SUNDAY, THE RIDGE
AXIS SHOULD BE FAR ENOUGH OFFSHORE AND THE FRONT SHOULD BE OVER OR
NEAR THE AREA, PROVIDING SCATTERED SHOWERS AND STORMS AND SOME
RELIEF FROM THE HEAT.
KEY MESSAGE 2... LOW RAIN CHANCES DURING THE WEEK BECOME ELEVATED
OVER THE WEEKEND AHEAD OF A COLD FRONT.
KEY MESSAGE 2 DESCRIPTION... WITH A MID-UPPER RIDGE AXIS WEST OF THE
AREA, THE COVERAGE OF SHOWERS AND STORMS SHOULD REMAIN ISOLATED
THROUGH THE END OF THE WEEK. HOWEVER, GUIDANCE TOOLS ARE HINTING AT
A SOMEWHAT HIGHER COVERAGE OF CONVECTION OVER THE WESTERN HALF OF
THE FORECAST AREA ON THURSDAY AS A WEAK SHORTWAVE TROUGH COMES IN
AND HELPS OUT THE SURFACE TROUGH OVER THE PIEDMONT REGION. ALTHOUGH
SUFFICIENT INSTABILITY WILL BE PRESENT FOR THUNDERSTORMS, FORECAST
SOUNDINGS DEPICT A CONSIDERABLE AMOUNT OF DRY AIR IN THE MID-UPPER
TROPOSPHERE, WHICH WILL INHIBIT DEVELOPMENT AND KEEP COVERAGE
LIMITED.
OVER THE WEEKEND, THE MID-UPPER RIDGE AXIS WILL SHIFT EASTWARD AS A
SURFACE COLD FRONT PUSHES SOUTHEAST. THIS FRONT WILL SLOW DOWN AS IT
MOVES EAST OF THE APPALACHIANS INTO THE RIDGE, BUT ITS PRESENCE
SHOULD INCREASE THE COVERAGE OF AFTERNOON SHOWERS AND STORMS TO
SCATTERED FOR BOTH SATURDAY AND SUNDAY. AS IS TYPICAL FOR FRONTS
THIS TIME OF YEAR, IT SHOULD STALL NEAR OR OVER THE AREA BEFORE
LIFTING BACK NORTHWESTWARD ON SUNDAY. THEREAFTER, GUIDANCE TOOLS
DIVERGE IN THE HANDLING OF UPSTREAM TROUGHING, WHICH SHOULD BRING
ANOTHER COLD FRONT AND INCREASED RAIN CHANCES INTO THE AREA EARLY
NEXT WEEK.
AVIATION /18Z TUESDAY THROUGH SUNDAY/
ABUNDANT LOW-LEVEL MOISTURE HAS ALLOWED FOR A CUMULUS FIELD TO
DEVELOP WITH SOME BASES IN THE MVFR RANGE. CONTINUED HEATING WILL
CAUSE CLOUD BASES TO GRADUALLY RISE AND THE SEA BREEZE TO SHIFT
INLAND, WHICH SHOULD KEEP VFR PREVAILING AT THE TERMINALS.
OTHERWISE, EXPECT CUMULUS TO DISSIPATE THIS EVENING WHILE A MIX OF
MID-LEVEL (~5KFT) AND HIGH-LEVEL (~25-30KFT) CLOUDS CONTINUE TO
STREAM OVERHEAD. TONIGHT, ANOTHER ROUND OF LOW STRATUS APPEARS
LIKELY, WITH THE HIGHEST CONFIDENCE FOR MVFR TO IFR CIG RESTRICTIONS
AT THE INLAND TERMINALS AND LESSER CONFIDENCE NEAR THE COAST.
STRATUS SHOULD DISSIPATE MORE QUICKLY TOMORROW MORNING AS THE FRONT
WHICH CROSSED INTO THE AREA THIS MORNING LIFTS BACK NORTHWARD
TONIGHT, ALLOWING FOR PREVAILING SOUTHERLY TO SSW FLOW TO TAKE OVER.
HOWEVER, IF THE STRATUS IS QUITE EXTENSIVE, IT MAY STILL TAKE MOST
OR ALL OF THE MORNING TO DISSIPATE, PARTICULARLY AT KFLO.
EXTENDED FORECAST...MVFR/IFR CEILINGS POSSIBLE AGAIN WED NIGHT.
RESTRICTIONS FROM ISOLATED AFTERNOON/EVENING STORMS POSSIBLE EACH
DAY THROUGH FRIDAY, MAINLY INLAND BEFORE AN INCOMING FRONT
LIKELY BRINGS A GREATER COVERAGE OF SHOWERS AND STORMS OVER THE
WEEKEND. OTHERWISE VFR.
MARINE
HIGH PRESSURE SHIFTING OFF THE MID-ATLANTIC COAST TODAY WILL RESULT
IN WINDS VEERING FROM EASTERLY THIS AFTERNOON TO SOUTHERLY TONIGHT.
AS THIS HIGH SHIFTS TOWARDS BERMUDA, EXPECT SOUTHWESTERLY WINDS BY
EARLY THURSDAY WITH SPEEDS BETWEEN 10-20 KTS THROUGH FRIDAY NIGHT AS
A PIEDMONT TROUGH SETS UP AND TIGHTENS THE PRESSURE GRADIENT AGAINST
THE HIGH. WITH VERY WARM TEMPERATURES ON LAND, EXPECT A HEALTHY SEA
BREEZE TO DEVELOP AS WELL, AND RESULT IN GUSTY SOUTH TO SSE WINDS
NEAR THE COAST WHICH CAN TOP OUT AROUND 20-25 KTS DURING THE
AFTERNOON. AS A COLD FRONT SHIFTS IN FROM THE NORTHWEST AND THE
BERMUDA HIGH MOVES AWAY, WINDS SLACKEN OVER THE WEEKEND.
SEAS WILL RUN GENERALLY 1-3 FT IN THE 0-20NMI ZONE AND 2-4 FT IN THE
20-60NMI ZONE. AN EASTERLY 8 SEC SWELL WILL PREDOMINANTLY CONTRIBUTE
TO THE WAVE SPECTRUM THROUGH WEDNESDAY WITH WAVES OF 2-3 FT BEFORE
SUBSIDING TO 1-2 FT ON THURSDAY AND 1 FT OR LESS FROM FRIDAY ONWARD.
ENHANCED WINDS OVER THURSDAY AND FRIDAY WILL LEAD TO WIND WAVES
CONTRIBUTING 2-3 FT (3-4 FT) WAVES IN THE 0-20NMI (20-60NMI) ZONES
DURING THOSE DAYS. LINGERING SOUTHERLY WIND WAVES OF 1-3 FT WILL
CONTINUE ON SATURDAY WITH A 1 FT OR LESS EASTERLY SWELL.
ILM WATCHES/WARNINGS/ADVISORIES
NC...NONE.
SC...NONE.
MARINE...NONE.
WHAT HAS CHANGED...ABW
KEY MESSAGES...ABW
DISCUSSION...ABW
AVIATION...ABW
MARINE...ABW
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