Hail in Massachusetts, August 10, 2008

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ALBANY NY
135 PM EDT SUN AUG 10 2008

.SYNOPSIS...
A RATHER IMPRESSIVE UPPER LEVEL STORM SYSTEM WILL IMPACT
THE REGION THE REMAINDER OF THIS WEEKEND AND INTO THE BEGINNING OF
THE WORK WEEK. THIS WILL KEEP OUR TEMPERATURES BELOW NORMAL AND
PRECIPITATION ABOVE NORMAL.  A PERIOD OF TRANQUIL WEATHER IS
EXPECTED FOR THE MIDDLE OF THE UPCOMING WEEK...WITH A RETURN TO NEAR
SEASONABLE TEMPERATURES.

&&

.NEAR TERM /UNTIL 8 PM THIS EVENING/...
A BROKEN LINE OF SHOWERS AND STORMS IS WORKING ACROSS THE HUDSON
VALLEY AT THIS TIME. MORE CELLS HAVE FIRE UP TO THE EAST OF THE LINE
OVER THE BERKSHIRES AND SOUTHERN GREENS AS WELL AS TO THE WEST.
EXPECT ACTIVITY TO CONTINUE THROUGHOUT THE NEXT FEW HOURS. WHERE SUN
HAS HEATED TEMPERATURES WELL INTO THE 70S...SBCAPES ARE APPROACHING
2000 J/KG. MOST OF THE STORMS THUS FAR HAVE CONTAINED HAIL...UP TO
DIME SIZE. WHOLE AREA IS UNDER A SEVERE THUNDERSTORM WATCH FOR LARGE
HAIL AND STRONG GUSTY WINDS.

NAM/GFS IN GOOD AGREEMENT WITH SHOWING A MID LEVEL JET MAX ROUNDING
THE BASE OF THE CUT-OFF LOW WELL SOUTH OF THE REGION CLOSE TO THE
DELMARVA. THIS IS WHERE THE BEST COMBO OF SHEAR/INSTABILITY WILL BE.
FOR OUR REGION...THE INSTABILITY WILL BE CRITICAL...AS DEEP LAYER
SHEAR WILL BE RATHER WEAK AND UNIDIRECTIONAL WITH A SOUTHERLY FLOW
ON THE EASTERN PERIPHERY OF THE CUT-OFF LOW. THIS COULD LEAD TO
TRAINING CELLS THOUGH...WITH THE POSSIBILITY OF MINOR SMALL
STREAM/URBAN FLOODING. IF ENOUGH CAPE CAN BE REALIZED...IT APPEARS
THE MAIN THREAT FROM SEVERE STORMS WOULD BE HAIL...DUE TO COLD POOL
ALOFT /500 MB TEMPS -16C TO -17C/ AND WBZERO HEIGHTS OF LESS THAN
9000 FEET...COMBINED WITH RELATIVELY WEAK LOW TO MID LEVEL FLOW.

MAX TEMPS WILL BE TRICKY TODAY...AS AREAS FROM ALBANY EASTWARD WILL
START THE DAY WITH SUNSHINE BUT WILL SEE CLOUDS INCREASE...WHILE
WESTERN AREAS MAY HAVE MORE IN THE WAY OF BREAKS OF SUNSHINE LATER
THIS AFTERNOON. WILL RAISE TEMPS A FEW DEGREES FROM PREVIOUS
FORECAST AND MENTION MAINLY MID TO UPPER 70S FROM ALBANY EASTWARD.

&&

.SHORT TERM /8 PM THIS EVENING THROUGH MONDAY NIGHT/...
DRY SLOT WILL ATTEMPT TO IMPEDE INTO PORTIONS OF THE WESTERN
CWA...ALTHOUGH...WILL BE WATCHING THE POTENTIAL FOR SURFACE
COASTAL DEVELOPMENT JUST SOUTH OF NYC. GLOBAL MODELS ARE IN
AGREEMENT WITH THIS POTENTIAL IDEA AND THIS WILL CAUSE QUITE A
CHANGE IN THE FORECAST THROUGH MONDAY. POTENTIAL FOR A
DEFORMATION/TROWAL EVOLVING WHICH COULD PLACE LOCATIONS ALONG AND
EAST OF THE HUDSON RIVER UNDER AN ADDITIONAL THREAT FOR MORE HEAVY
RAINFALL. DEPENDING ON HOW MUCH FALLS TODAY...MIGHT HAVE TO HOIST
A WATCH IN LATER SHIFTS.

WITH THE ANTICIPATED RAINFALL TODAY AND POSITION OF THE UPPER LOW
AND DEVELOPING COASTAL SYSTEM...SURFACE WINDS TONIGHT WILL LIKELY
BECOME LIGHT AND VARIABLE. WILL INCLUDE THE MENTION OF FOG AS WELL.

TEMPERATURES WILL BE SEVERAL DEGREES BELOW NORMAL AND
PRECIPITATION AMOUNT ABOVE NORMAL THROUGH THE SHORT TERM.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
500 HPA TROF STUBBORNLY HANGS IN OVER SOUTHERN QUEBEC AS ANOTHER
CUTOFF DROPS SOUTH TO THE NY/CANADA BORDER BY WEDNESDAY AFTERNOON...
THEN FINALLY EXITS EAST...ALLOWING THE UPPER FLOW TO BECOME ZONAL
UNTIL FRIDAY NIGHT WHEN A DEEP TROF APPROACHING FROM THE WEST
BRINGS THE FLOW PATTERN AROUND TO THE SOUTHWEST. 850 TEMPS QUITE
CHILLY TO START...DOWN TO 7 DEGREES C OVER THE NORTHWESTERN PART
OF OUR FORECAST AREA LATE TUESDAY NIGHT...REMAINING NEAR 10
DEGREES UNTIL THEY GRADUALLY CLIMB INTO THE LOW TEENS FOR THE
WEEKEND.  THE SURFACE LOW WHICH DOMINATED OUR WEATHER MONDAY IS
FORECAST TO BE IN THE GULF OF MAINE TUESDAY MORNING AND BE
REPLACED BY A HIGH BUILDING IN FROM THE WEST WHICH WILL
DOMINATE OUR WEATHER FOR THE MIDWEEK PERIOD. HOWEVER THERE IS A
POSSIBILITY THIS GOOD WEATHER WILL NOT HANG AROUND LONG ENOUGH
FOR THE WEEKEND...AS A WARM FRONT APPROACHES THE REGION LATE
FRIDAY NIGHT AND BRINGS AN INCREASING THREAT OF SHOWERS AND
THUNDERSTORMS SATURDAY AS THE AIR BECOMES INCREASINGLY WARM
AND UNSTABLE. FOR THE MOST PART HAVE FAVORED HPC GUIDANCE.
HIGHS 65 TO 80 TUESDAY AND WEDNESDAY WARMING TO 75 TO 85 BY
SATURDAY. LOWS 45 TO 55 TUESDAY MORNING WARMING TO THE 50S
AND LOWER 60S BY FRIDAY NIGHT.

&&

.AVIATION /18Z SUNDAY THROUGH THURSDAY/...
A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7PM EDT.

SHOWERS AND STORMS NOW IMPACTING ALL TERMINALS WITH THE FIRST LINE
OF ACTIVITY MOVING THROUGH. MORE SHOWERS AND STORMS ARE FIRING UP TO
OUR WEST AHEAD OF AN UPPER AIR LOW. EXPECT UNSETTLED CONDITIONS
THROUGH THE AFTERNOON AND SOME OF THE STORMS COULD BE LOCALLY STRONG
TO SEVERE...WITH LARGE HAIL AS THE BIGGEST THREAT. MUCH OF THE
AFTERNOON AND EARLY WILL PROBABLY BE VFR AND WE WILL ATTEMPT TO TIME
BEST CHANCES OF THUNDERSTORMS IMPACTING EACH TERMINAL.

TONIGHT...AS THE UPPER LEVEL LOW PIVOTS TO OUR SOUTH...A SURFACE LOW
PRESSURE IS FORECAST TO FORM OFF THE JERSEY COAST AND TRACK UP
NORTHEAST ALONG THE COAST MUCH LIKE A WINTER SCENARIO. NO SNOW OF
COURSE...BUT COULD BE LOOKING AT STEADIER RAIN. FOR NOW...WENT WITH
MVFR CONDITIONS LATER TONIGHT INTO TOMORROW...WITH AN EMBEDDED
THUNDERSTORM OR TWO STILL POSSIBLE.

OUTLOOK...
MONDAY...MVFR WITH SHRA/TSRA. INTERVALS OF IFR ESPECIALLY OVER
HIGHER TERRAIN.
MON NIGHT...MVFR...SLGT CHC SHRA/TSRA...POSS IFR FOG.
TUESDAY...VFR...SIGHT CHC OF SHRA/TSRA.
TUE NGT-WED NGT...VFR...SLIGHT CHC SHRA/TSRA...POSS OVERNIGHT MVFR
FOG. THU...VFR...SLGT CHC SHRA/TSRA.

&&

.FIRE WEATHER...
   ...WET FLAG CONDITIONS EXPECTED THROUGH MONDAY...

RELATIVE HUMIDITY VALUES WILL BE RATHER HIGH ALONG WITH THE
POTENTIAL FOR RAINFALL AMOUNTS EXCEEDING 1 INCH...ESPECIALLY
ACROSS THE HIGHER ELEVATIONS THROUGH MONDAY.

&&

.HYDROLOGY...
A POTENT UPPER LEVEL LOW PRESSURE SYSTEM WILL DROP SOUTHEAST
ACROSS THE EASTERN GREAT LAKES AND BRING NUMEROUS SHOWERS AND
THUNDERSTORMS TO THE REGION. THROUGH MUCH OF TODAY THE FORECAST
AREA WILL BE ON THE EASTERN PERIPHERY OF THE UPPER LOW...WHICH
WILL RESULT IN FAIRLY UNIFORM SOUTHERLY FLOW. THIS WILL LEAD TO
FAVORABLE CONDITIONS FOR CONVECTIVE CELLS TO FOLLOW EACH OTHER
ACROSS THE SAME AREA...WHICH COULD RESULT IN LOCALIZED BANDS OF 1
TO 2 INCHES OF RAIN FALLING IN A RELATIVELY SHORT TIME. THIS COULD
LEAD TO FLOODING OF ROADS AND PARKING AREAS AND RAPID RISES TO
NEAR BANKFULL CONDITIONS ON STREAMS AND SMALLER RIVERS. THE LARGER
RIVERS SHOULD ONLY EXPERIENCE MINOR RISES SINCE THE HEAVIEST RAIN
WILL BE LOCALIZED. GENERALLY 1 TO 2.5 INCHES OF RAIN IS EXPECTED
THROUGH MONDAY EVENING...WITH THE HIGHER AMOUNTS ACROSS THE HIGHER
ELEVATIONS OF THE ADIRONDACKS... CATSKILLS...SOUTHERN GREEN
MOUNTAINS OF VERMONT AND THE BERKSHIRES.

RAIN SHOULD TAPER OFF BY TUESDAY...AS WEAK HIGH PRESSURE BUILDS IN
FROM THE WEST. DRY CONDITIONS MAY HOLD THROUGH WEDNESDAY...BEFORE
THE NEXT UPPER LEVEL LOW APPROACHES FROM SOUTHEAST CANADA LATE IN
THE WEEK.

WE DID SOME PRELIMINARY MODELING ON THE HOUSATONIC FOR THE
OPERATORS OF THE SHEPAUG AND STEVENSON HYDRO PROJECTS...USING
THE QPF IN THE GRIDS WHICH CAME FROM HPC...WHICH PROJECTS THE
HOUSATONIC TO REACH A LITTLE UNDER 6 FEET AT FALLS VILLAGE AND
AROUND 5.5 FEET AT GAYLORDSVILLE. FLOWS ARE NOT EXPECTED TO PEAK
UNTIL LATE MONDAY NIGHT OR TUESDAY MORNING. MORE REFINED
FORECASTS WILL BE AVAILABLE LATER TODAY. VISIT THE ADVANCED
HYDROLOGIC PREDICTION /AHPS/ PAGES ON OUR WEBSITE FOR DETAILS.

&&

.ALY WATCHES/WARNINGS/ADVISORIES...
CT...NONE.
NY...NONE.
MA...NONE.
VT...NONE.

&&

NEAR TERM...HWJIV
AVIATION...HWJIV

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ALBANY NY
1056 AM EDT SUN AUG 10 2008

CTZ001-013-MAZ001-025-NYZ032-033-038>043-047>054-058>061-063>066-
082>084-VTZ013>015-111100-
NORTHERN LITCHFIELD-SOUTHERN LITCHFIELD-NORTHERN BERKSHIRE-
SOUTHERN BERKSHIRE-NORTHERN HERKIMER-HAMILTON-SOUTHERN HERKIMER-
SOUTHERN FULTON-MONTGOMERY-NORTHERN SARATOGA-NORTHERN WARREN-
NORTHERN WASHINGTON-SCHOHARIE-WESTERN SCHENECTADY-
EASTERN SCHENECTADY-SOUTHERN SARATOGA-WESTERN ALBANY-EASTERN ALBANY-
WESTERN RENSSELAER-EASTERN RENSSELAER-WESTERN GREENE-EASTERN GREENE-
WESTERN COLUMBIA-EASTERN COLUMBIA-WESTERN ULSTER-EASTERN ULSTER-
WESTERN DUTCHESS-EASTERN DUTCHESS-NORTHERN FULTON-SOUTHEAST WARREN-
SOUTHERN WASHINGTON-BENNINGTON-WESTERN WINDHAM-EASTERN WINDHAM-
1056 AM EDT SUN AUG 10 2008

...SEVERE THUNDERSTORM WATCH 817 IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWESTERN
CONNECTICUT...WESTERN MASSACHUSETTS...EAST CENTRAL NEW YORK AND
SOUTHERN VERMONT.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE CHANCE FOR ADDITIONAL THUNDERSTORMS REMAINS IN THE FORECAST
THROUGH MOST OF THE UPCOMING WEEK AS A SERIES OF UPPER LEVEL
DISTURBANCES TRACKS ACROSS THE REGION. RAINFALL COULD BE LOCALLY
HEAVY ON MONDAY ACROSS THE HUDSON RIVER VALLEY AND ADJACENT
WESTERN NEW ENGLAND.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF THE SKYWARN NETWORK IS REQUESTED FOR THE FOLLOWING
COUNTIES.

LITCHFIELD...BERKSHIRE...ALBANY...COLUMBIA...DUTCHESS...FULTON...
GREENE...HAMILTON...HERKIMER...MONTGOMERY...RENSSELAER...
SARATOGA...SCHENECTADY...SCHOHARIE...ULSTER...WARREN...
WASHINGTON...BENNINGTON...WINDHAM.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
1259 PM EDT SUN AUG 10 2008

MAZ001-025-101745-
SOUTHERN BERKSHIRE MA-NORTHERN BERKSHIRE MA-
1259 PM EDT SUN AUG 10 2008

...A STRONG THUNDERSTORM IN BERKSHIRE COUNTY...

AT 1256 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...FREQUENT
LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS LOCATED NEAR EAST
WINDSOR...OR ABOUT 13 MILES EAST OF PITTSFIELD...AND MOVING NORTH AT
11 MPH.

THE THUNDERSTORM WILL BE NEAR...
EAST WINDSOR BY 105 PM EDT
7 MILES EAST OF CHESHIRE BY 135 PM EDT
SAVOY BY 140 PM EDT
FLORIDA...6 MILES SOUTHEAST OF ADAMS AND 9 MILES SOUTHEAST OF NORTH
ADAMS BY 145 PM EDT

ELH/JPV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
132 PM EDT SUN AUG 10 2008

NYZ041-050-053-101815-
WESTERN RENSSELAER NY-SOUTHERN SARATOGA NY-NORTHERN SARATOGA NY-
132 PM EDT SUN AUG 10 2008

...A STRONG THUNDERSTORM IN RENSSELAER AND SARATOGA COUNTIES...

AT 128 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...FREQUENT
LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS LOCATED NEAR CLIFTON
PARK...OR ABOUT OVER CLIFTON PARK...AND MOVING NORTHEAST AT 21 MPH.

THE THUNDERSTORM WILL BE NEAR...
ROUND LAKE BY 140 PM EDT
MECHANICVILLE BY 150 PM EDT

ELH/JPV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
134 PM EDT SUN AUG 10 2008

NYZ043-084-101815-
NORTHERN WASHINGTON NY-SOUTHERN WASHINGTON NY-
134 PM EDT SUN AUG 10 2008

...A STRONG THUNDERSTORM IN WASHINGTON COUNTY...

AT 132 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...FREQUENT
LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS LOCATED 8 MILES SOUTH OF
HARTFORD...OR ABOUT 8 MILES NORTHWEST OF SALEM...AND MOVING NORTH AT
19 MPH.

THE THUNDERSTORM WILL BE NEAR...
HARTFORD BY 155 PM EDT
GRANVILLE AND COMSTOCK BY 215 PM EDT

ELH/JPV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
139 PM EDT SUN AUG 10 2008

NYZ053-054-060-061-101830-
EASTERN COLUMBIA NY-WESTERN COLUMBIA NY-WESTERN RENSSELAER NY-
EASTERN RENSSELAER NY-
139 PM EDT SUN AUG 10 2008

...A STRONG THUNDERSTORM IN COLUMBIA AND RENSSELAER COUNTIES...

AT 137 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...FREQUENT
LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS LOCATED 9 MILES SOUTHWEST
OF STEPHENTOWN...OR ABOUT OVER NASSAU...AND MOVING NORTHEAST AT 19
MPH.

THE THUNDERSTORM WILL BE NEAR...
STEPHENTOWN BY 205 PM EDT
6 MILES SOUTHEAST OF AVERILL PARK BY 210 PM EDT

ELH/JPV

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
225 PM EDT SUN AUG 10 2008

VTZ013-101900-
BENNINGTON VT-
225 PM EDT SUN AUG 10 2008

...A STRONG THUNDERSTORM IN BENNINGTON COUNTY...

AT 223 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...POSSIBLE PEA TO HALF INCH SIZED
HAIL...OCCASIONAL CLOUD TO GROUND LIGHTNING...AND HEAVY RAIN.  THIS
STORM WAS LOCATED NEAR BENNINGTON...AND MOVING NORTH AT 25 MPH.

THE THUNDERSTORM WILL BE NEAR...
3 MILES NORTH OF BENNINGTON BY 230 PM...
SHAFTSBURY AND HIDDEN VALLEY BY 250 PM...
ARLINGTON BY 300 PM...

RAINFALL AMOUNTS WILL RANGE BETWEEN A QUARTER AND TWO THIRDS ON AN
INCH WITH THIS STORM.

FRUGIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ALBANY NY
238 PM EDT SUN AUG 10 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0131 PM     HAIL             TILLSON                 41.83N 74.07W
08/10/2008  E0.75 INCH       ULSTER             NY   TRAINED SPOTTER

0200 PM     HAIL             CHESTERTOWN             43.65N 73.80W
08/10/2008  M0.88 INCH       WARREN             NY   TRAINED SPOTTER

0205 PM     HAIL             POTTERSVILLE            43.73N 73.82W
08/10/2008  M0.75 INCH       WARREN             NY   TRAINED SPOTTER

&&

KOLECI