Area Forecast Discussion
Issued by NWS Cleveland, OH

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS61 KCLE 221020
AFDCLE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
620 AM EDT TUE JUL 22 2014

.SYNOPSIS...
A SINGLE HOT AND HUMID DAY TODAY WILL BE REPLACED BY COOLER
WEATHER AS A COLD FRONT WILL CROSS THE REGION ON WEDNESDAY.
CANADIAN HIGH PRESSURE WILL ENCOMPASS THE GREAT LAKES AND OHIO
VALLEY THROUGH THE END OF THE WORK WEEK. THE NEXT WEATHER
DISTURBANCE WILL AFFECT US OVER THE WEEKEND.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
HOT AND HUMID TODAY WITH HIGHS PUSHING OR TOPPING 90. HEAT INDEX
VALUES A FEW DEGREES HIGHER. SCATTERED/BROKEN CUMULUS ACROSS THE
EAST THOUGH THIS AFTERNOON. NO CONVECTION EXPECTED UNDER STRONG
RIDGE. NO CHANGES WITH THIS EARLY MORNING UPDATE.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/...
MILD NIGHT TONIGHT WITH PREFRONTAL SOUTHWESTERLY WINDS. MOST
EVERYWHERE WILL STAY IN THE LOWER 70S OVERNIGHT. CLOUDS WILL
INCREASE FROM THE WEST AND MAY HAVE SOME SCATTERED
SHOWERS/THUNDERSTORMS ENTER INTO NORTHWEST OHIO BEFORE 6AM.

DETAILS ON THE COLD FRONT FOR WEDNESDAY KEEP NEEDING TO BE
TWEAKED...AFFECTED PRIMARILY BY FRONTAL TIMING. GFS IS THE
FASTEST WITH THE REMAINING GUIDANCE BEHIND IT. WILL GO WITH THE
MAJORITY AND BRING THE COLD FRONT TO SANDUSKY TO FORT WAYNE BY 8
AM WEDNESDAY. NOT AN OPTIMAL TIME FOR STRONGER STORMS. COLD FRONT
REMAINS PROGRESSIVE AND IT WILL KEEP PUSHING SOUTHEAST. SHOULD GET
A FLARE UP OF CONVECTION IN THE AFTERNOON FOR AREAS ALONG AND EAST
OF THE I-71 CORRIDOR. POSSIBLY STRONG...BUT LIKELY NOT SEVERE.
BETTER SUPPORT REMAINS WELL TO OUR NORTHEAST WITH THE BEST TROUGH
ENERGY. THESE LATEST RUNS ALSO DRIER. STILL CAN NOT PUSH POPS UP
PAST LIKELY ANYWHERE. WITH THIS TIMING TEMPERATURES ALSO TRENDING
COOLER. BLENDED NEW GUIDANCE WITH WHAT WE HAD
PREVIOUSLY...ALLOWING FOR SOME WARM-UP FOR THE FAR SOUTHEAST AND
STAYING ON THE WARM SIDE OF GUIDANCE THERE.

END THE PRECIP FASTER AND BY WEDNESDAY NIGHT DRIER AIR AND HIGH
PRESSURE WILL BE INFILTRATING THE REGION. BACK TO 70S FOR HIGHS
FOR THURSDAY AND FRIDAY AND LOWS DIPPING BACK INTO THE 50S
INLAND...BOTH FAIR WITH THAT HIGH OVERHEAD.

&&

.LONG TERM /SATURDAY THROUGH MONDAY/...
DISCREPANCIES REMAIN IN THE MODELS AS TO THE TIMING OF THE NEXT
THREAT OF SHOWER/STORMS. THE MODELS MAY BE HAVING SOME CONVECTIVE
FEEDBACK ISSUES BY FRIDAY WITH THE STRONG WARM/DIFFERENTIAL
ADVECTION TO THE WEST. CONSEQUENTLY AM A LITTLE NERVOUS ABOUT THE
DOWNSTREAM SOLUTIONS FOR SATURDAY. ANY THUNDERSTORM COMPLEX THAT
DEVELOPS OVER THE UPPER MIDWEST COULD POTENTIALLY MOVE INTO THE AREA
BEFORE WEAKENING BUT DOUBTFUL THAT IT WOULD OCCUR BEFORE LATE FRIDAY
NIGHT OR SATURDAY. CONTINUED WITH THE SAME FORECAST OF A CHANCE OF
SHOWERS/STORMS ACROSS NORTHWEST OHIO BY SATURDAY BUT TOOK OUT THE
TIMING ALLOWING IT ANYTIME ON SATURDAY. THE SHOWER THREAT WOULD THEN
EXPAND ACROSS THE ENTIRE FORECAST AREA SATURDAY NIGHT INTO SUNDAY.
NOT MUCH CONFIDENCE IN THE SPECIFIC POP IN ANY FORECAST PERIOD. WILL
PROBABLY NEED MORE THAN A "CHANCE" AT SOME POINT BUT NOT ENOUGH
CONFIDENCE TO PIN POINT THE TIMING YET. BY NEXT MONDAY THE MODELS
THE SURFACE LOW WOULD BE BUT ONE WOULD THINK THAT THE NEXT COLD
FRONT WOULD ARRIVE ON MONDAY AND THE TROUGH ALOFT WILL CONTINUE TO
DEEPEN. WILL CONTINUE WITH A CHANCE OF SHOWERS/STORMS ON MONDAY.

SIMILAR DOUBTS ABOUT THE SPECIFIC TEMPERATURE FORECASTS OVER THE
WEEKEND SINCE THE TEMPERATURES WILL DEPEND ON THE AMOUNT OF CLOUDS
AND SHOWERS. WILL FORECAST TEMPERATURES NEAR NORMAL ALTHOUGH THEY
COULD EASILY BE SEVERAL DEGREES BELOW OR ABOVE THE FORECAST.

&&

.AVIATION /06Z TUESDAY THROUGH SATURDAY/...
WINDS REMAIN LIGHT AND THERE WILL BE AREAS OF MVFR FOG/HAZE/MIST
EARLY THIS MORNING INLAND FROM LAKE ERIE WITH A FEW SPOTS OF IFR
VISIBILITY FOR A COUPLE OF HOURS AROUND SUNRISE. VFR
CONDITIONS OTHERWISE WITH CUMULUS FROM DAYTIME HEATING. LAKE
BREEZE WIND SHIFTS STILL LIKELY AT KERI AND PROBABLY AT KCLE.
VFR TONIGHT WITH INCREASING MID/HIGH CLOUDS.

OUTLOOK...NON VFR IN SHOWERS AND THUNDERSTORMS WEDNESDAY AND
SATURDAY AFTERNOON/NIGHT.

&&

.MARINE...
THE SOUTH FLOW WILL STRENGTHEN TODAY BETWEEN THE SURFACE HIGH TO
THE EAST AND THE APPROACHING COLD FRONT. NONETHELESS THE PRESSURE
GRADIENT SHOULD BE WEAK ENOUGH FOR A LAKE BREEZE...ESPECIALLY EAST
OF CLEVELAND. THE LAKE BREEZE WEST OF CLEVELAND MAY STRUGGLE
ESPECIALLY WEST OF SANDUSKY. THE SOUTH WIND WILL BEGIN TO INCREASE
TONIGHT AHEAD OF THE COLD FRONT.

NOT SURE OF THE EXACT TIMING OF THE COLD FRONT. THERE COULD BE AN
INITIAL TROUGH OR OUT FLOW BOUNDARY THAT MAY BRING A WIND SHIFT LATE
TONIGHT OR FIRST THING WEDNESDAY MORNING. THE ACTUAL FRONT COULD BE
SEVERAL HOURS LATER. IN ANY CASE...THE WIND WILL SHIFT FROM THE
NORTHWEST AND EVENTUALLY THE NORTH ON WEDNESDAY AND NORTHEAST BY
WEDNESDAY NIGHT. THE NORTH AND NORTHEAST WIND WILL LIKELY BE STRONG
ENOUGH FOR A SMALL CRAFT ADVISORY BY LATER WEDNESDAY OR WEDNESDAY
NIGHT...ESPECIALLY ON THE WEST HALF OF THE LAKE. THE SURFACE HIGH
WILL BUILD IN ON THURSDAY AND WINDS SHOULD DIMINISH. THE FLOW WILL
VEER TO THE SOUTHEAST AND SOUTH BY THE WEEKEND.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...NONE.
PA...NONE.
MARINE...NONE.

&&

$$
SYNOPSIS...OUDEMAN
NEAR TERM...OUDEMAN
SHORT TERM...OUDEMAN
LONG TERM...KOSARIK
AVIATION...KOSARIK
MARINE...KOSARIK





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.