087
FXUS61 KCLE 250605
AFDCLE
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
205 AM EDT WED JUN 25 2025
SYNOPSIS
A COLD FRONT WILL MOVE SOUTH INTO THE AREA TONIGHT INTO
WEDNESDAY, BECOMING STATIONARY. THE FRONT WILL LIFT NORTH OF THE
AREA AS A WARM FRONT THURSDAY AS LOW PRESSURE NORTHEAST THROUGH
THE CENTRAL GREAT LAKES FRIDAY. A LINGERING FRONTAL BOUNDARY WILL
REMAIN NORTH OF THE AREA WITH HIGH PRESSURE CENTERED SOUTHEAST OF
THE AREA THIS WEEKEND BEFORE A STRONGER COLD FRONT PUSHES
SOUTHEAST ACROSS THE REGION EARLY NEXT WEEK.
NEAR TERM /THROUGH TONIGHT/
800 PM UPDATE...
WE LET THE HEAT ADVISORY EXPIRE AT 8 PM. OTHERWISE, THE REST OF
THE NEAR TERM FORECAST IS ON TRACK WITH NO ADJUSTMENTS NEEDED AT
THIS TIME.
PREVIOUS DISCUSSION...
HOT AND HUMID CONDITIONS PERSIST ACROSS THE AREA THIS
AFTERNOON, BUT SOME RELIEF IS ON THE WAY AS A MORE ACTIVE
PATTERN SETS UP FOR THE LOCAL AREA. A COLD FRONT WILL SETTLE
SOUTH INTO THE AREA THIS EVENING. SCATTERED CONVECTION HAS
DEVELOPED UPSTREAM AHEAD OF THE FRONT IN NORTHERN IN AND
SOUTHERN LOWER MI THIS AFTERNOON IN AN AREA OF 2000 J/KG MLCAPE
AND BETTER MOISTURE CONVERGENCE. EXPECTING THIS ACTIVITY TO
SLOWLY WORK SOUTHEAST INTO NORTHWEST/NORTH CENTRAL OH THIS
EVENING, WITH A FEW ISOLATED SHOWERS ALREADY TRYING TO FORM IN
PARTS OF THE AREA. WEAK DEEP LAYER FLOW AND WARM/DRY MID LEVELS
ARE FAIRLY PROHIBITIVE FOR ORGANIZED CONVECTION, ALTHOUGH
GENERALLY AGREE WITH SPC/WPC DAY 1 MARGINAL RISK FOR SEVERE
WEATHER/EXCESSIVE RAINFALL, WITH SLOW MOVING STORMS, MODEST
THETA E DIFFERENTIALS/DCAPE VALUES SUPPORTIVE OF A SMALL
DAMAGING WIND THREAT IN MORE ROBUST CONVECTION, AND DECENT
RAINFALL RATES.
CONVECTIVE ACTIVITY WILL GENERALLY DIMINISH DIURNALLY THROUGH
THE EVENING INTO THE OVERNIGHT, WITH MOST OF THE AREA REMAINING
DRY FOR A GOOD PORTION OF THE OVERNIGHT. LOWS WILL ONLY FALL TO
THE LOW/MID 70S OVERNIGHT. WITH THE BOUNDARY OVER THE AREA AND
THE UPPER LEVEL RIDGE FLATTENING TO MORE ZONAL FLOW ON
WEDNESDAY, BETTER CHANCES FOR PRECIPITATION EXIST ACROSS THE
AREA, ESPECIALLY ALONG AND SOUTH OF US-30. EXPECTING A BIT MORE
COVERAGE OF SHOWERS/STORMS ON WEDNESDAY WITH MLCAPE VALUES OF
2000-2500 J/KG, REFLECTED WITH LIKELY POPS. A BIT MORE
ORGANIZATION POSSIBLE TOO WITH SLIGHTLY BETTER DEEP LAYER SHEAR,
ALTHOUGH ENVIRONMENT STILL RATHER UNIMPRESSIVE FOR ORGANIZED
STRONG CONVECTION. THE HEAVY RAINFALL THREAT WILL BE A BIT
HIGHER TOMORROW WITH SOME DECENT SIGNALS IN THE HREF QPF PROBS
OF 3" IN 3 HOURS, WITH SLOW MOVING/TRAINING CONVECTION POSSIBLE
WITH RATHER HEAVY RAINFALL RATES. TEMPERATURES WILL BE A BIT
COOLER WEDNESDAY WITH HIGHS RANGING FROM THE MID 80S NORTH TO
NEAR 90 SOUTH, AND HEAT INDICES GENERALLY IN THE LOW TO MID 90S.
CONVECTION WILL DIURNALLY DIMINISH AGAIN WEDNESDAY NIGHT, WITH
LOWS IN THE UPPER 60S TO LOW 70S.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
DIURNALLY DRIVEN CONVECTION WILL BE COMMON ACROSS THE AREA
THURSDAY AND FRIDAY AS RIDGING CONTINUES TO HOLD SOUTH OF THE
AREA. THE AFOREMENTIONED BOUNDARY LINGERING OVER THE AREA WILL
ATTEMPT TO LIFT NORTH LATE THURSDAY INTO FRIDAY AS LOW PRESSURE
MOVES NORTHEAST THROUGH THE CENTRAL GREAT LAKES, ALTHOUGH THE
BOUNDARY WILL SETTLE BACK NEAR THE AREA BY LATE FRIDAY BEHIND
THE LOW. FORECAST POPS RAMP UP TO LIKELY DURING THE AFTERNOON
HOURS EACH DAY, THEN DIMINISHES TO CHANCE/SLIGHT CHANCE AFTER
SUNSET. PERHAPS SOME BETTER PRECIP COVERAGE WILL BE PRESENT
FRIDAY NIGHT WITH THE TRAILING COLD FRONT SINKING INTO THE AREA.
TEMPERATURES WILL CONTINUE TO BE ABOVE NORMAL AND HUMIDITY
VALUES WILL REMAIN HIGH, ALTHOUGH HEAT HEADLINES ARE NOT
ANTICIPATED AT THIS TIME.
LONG TERM /SATURDAY THROUGH TUESDAY/
SOME SIGNALS FOR A PATTERN CHANGE EXIST AT THE END OF THE LONG
TERM PERIOD, BUT CONTINUED ABOVE NORMAL TEMPS AND DIURNAL PRECIP
CHANCES EXPECTED THROUGH THE WEEKEND INTO EARLY NEXT WEEK WITH
QUASI ZONAL FLOW OVER THE AREA. SOME SIGNALS FOR LARGE SCALE
TROUGHING INTO THE GREAT LAKES BY TUESDAY WITH A STRONGER COLD
FRONT MOVING THROUGH THE AREA, WHICH MAY RETURN TEMPS TO MORE
NORMAL VALUES BY MIDWEEK NEXT WEEK WITH A DRIER PATTERN AS
CANADIAN HIGH PRESSURE BUILDS OVER THE AREA.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
CAN'T RULE OUT A PASSING SHOWER AT KCAK/KYNG FOR THE FIRST
COUPLE OF HOURS OF THE TAF PERIOD, BUT OTHERWISE EXPECT DRY
WEATHER THROUGH THE REMAINDER OF TONIGHT AND MUCH OF WEDNESDAY
MORNING. GENERALLY EXPECT VFR OUTSIDE OF ANY SHOWERS/STORMS OVER
THE NEXT 18 HOURS, BUT CAN'T RULE OUT SOME PATCHY FOG IN
LOCATIONS THAT RECEIVED HEAVY RAINFALL TODAY. A COLD FRONT WILL
SETTLE OVER NORTHERN OHIO TODAY, RESULTING IN YET ANOTHER ROUND
OF DIURNALLY-INFLUENCED SHOWERS/STORMS FROM ABOUT 16Z THROUGH
22-23Z. SHEAR WILL BE QUITE WEAK SO STORMS MAY NOT BE SUPER
ORGANIZED; AS A RESULT, CONFIDENCE IN THE PLACEMENT/COVERAGE OF
CONVECTION IS QUITE LOW. MAINTAINED VCTS AT MOST TERMINALS THIS
AFTERNOON INTO EARLY EVENING WITH A PROB30 AT KERI. ANY
SHOWERS/STORMS THAT MOVE DIRECTLY OVER TERMINALS COULD
POTENTIALLY PRODUCE NON-VFR VISIBILITIES AND GUSTY, ERRATIC
WINDS. AMENDMENTS/UPDATES ARE LIKELY AS CONFIDENCE INCREASES AND
STORMS BEGIN TO DEVELOP LATER TODAY. ISOLATED SHOWERS OR
THUNDERSTORMS MAY CONTINUE FROM ROUGHLY KCLE TO KCAK WESTWARD
THROUGH AS LATE AS 02-03Z THURSDAY. THE PROBABILITY OF PATCHY
FOG AND LOW STRATUS IS A BIT HIGHER WEDNESDAY NIGHT SO HAVE
INTRODUCED NON-VFR CONDITIONS AT KCAK/KYNG LATE IN THE TAF
PERIOD.
WINDS WILL BE LIGHT AND VARIABLE TONIGHT BEFORE GRADUALLY
SHIFTING TO THE NORTH AND NORTHEAST DURING THE AFTERNOON. LIGHT
AND VARIABLE WINDS WILL RETURN NEAR OR SHORTLY AFTER 00Z.
OUTLOOK...NON-VFR POSSIBLE IN SCATTERED AFTERNOON AND EVENING
SHOWERS AND THUNDERSTORMS THROUGH THIS WEEKEND.
MARINE
OUTSIDE FOR THE POTENTIAL OF STRONG THUNDERSTORMS, MARINE CONDITIONS
ARE EXPECTED TO BE QUIET WITH OVERALL FLOW 10 KNOTS OR LESS THROUGH
THIS WEEKEND. THE HIGHEST CHANCE FOR ANY STRONGER THUNDERSTORMS WITH
GUSTY WINDS TO IMPACT THE LAKE WILL BE THIS AFTERNOON AND EVENING,
AS WELL AS WEDNESDAY AFTERNOON AND EVENING. A BRIEF LULL IN
THUNDERSTORMS IS POSSIBLE ON THURSDAY, BEFORE SCATTERED TO PERHAPS
WIDESPREAD AFTERNOON AND EVENING THUNDERSTORM CHANCES RETURN FRIDAY
AND SATURDAY ACROSS THE LAKE.
CLE WATCHES/WARNINGS/ADVISORIES
OH...NONE.
PA...NONE.
MARINE...NONE.
SYNOPSIS...03
NEAR TERM...03/77
SHORT TERM...03
LONG TERM...03
AVIATION...15
MARINE...KAHN
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