Severe Thunderstorm Warning 64, NWS Boston/Norton, MA

124 
WWUS51 KBOX 231952
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
352 PM EDT TUE JUL 23 2013

MAC009-017-025-232030-
/O.CON.KBOX.SV.W.0064.000000T0000Z-130723T2030Z/
MIDDLESEX MA-SUFFOLK MA-ESSEX MA-
352 PM EDT TUE JUL 23 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR EASTERN MIDDLESEX...NORTHERN SUFFOLK AND CENTRAL ESSEX
COUNTIES...

AT 347 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ANDOVER TO
LINCOLN...AND WERE MOVING EAST AT 35 MPH.

IN ADDITION TO DAMAGING WINDS...THESE STORMS WERE PRODUCING RAINFALL
RATES AROUND ONE INCH PER HOUR. MINOR FLOODING CAN ALSO BE EXPECTED.

LOCATIONS IMPACTED INCLUDE...
LOWELL...LYNN...LAWRENCE...BEVERLY...DRACUT...NORTH ANDOVER...
LINCOLN...MALDEN...MEDFORD...PEABODY...REVERE...METHUEN...
ARLINGTON...HAMILTON...WENHAM...EVERETT...WOBURN...CHELSEA...
CHELMSFORD AND CARLISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.

&&

LAT...LON 4271 7082 4270 7082 4273 7078 4270 7077
      4271 7080 4267 7073 4255 7080 4254 7087
      4250 7089 4251 7082 4246 7094 4242 7091
      4246 7094 4239 7098 4240 7147 4270 7133
      4274 7125
TIME...MOT...LOC 1947Z 268DEG 29KT 4266 7117 4242 7129 

$$

JWD

151 
WWUS51 KBOX 232007
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
407 PM EDT TUE JUL 23 2013

MAC025-232016-
/O.CAN.KBOX.SV.W.0064.000000T0000Z-130723T2030Z/
SUFFOLK MA-
407 PM EDT TUE JUL 23 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SUFFOLK COUNTY IS
CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED NORTH OF 
SUFFOLK COUNTY. THEREFORE THE WARNING HAS BEEN CANCELLED.

&&

LAT...LON 4272 7078 4270 7078 4269 7079 4267 7073
      4265 7076 4265 7074 4256 7079 4254 7090
      4253 7088 4250 7089 4250 7085 4250 7086
      4243 7098 4245 7102 4243 7103 4244 7116
      4269 7105 4270 7082 4272 7079
TIME...MOT...LOC 2006Z 264DEG 28KT 4268 7099 4244 7111 

$$

MAC009-017-232030-
/O.CON.KBOX.SV.W.0064.000000T0000Z-130723T2030Z/
MIDDLESEX MA-ESSEX MA-
407 PM EDT TUE JUL 23 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR EASTERN MIDDLESEX AND CENTRAL ESSEX COUNTIES...

AT 405 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BOXFORD TO
MEDFORD...MOVING EAST AT 30 MPH.

IN ADDITION TO DAMAGING WINDS...TORRENTIAL RAINFALL WILL CAUSE MINOR 
STREET AND HIGHWAY FLOODING. AVOID FLOODED ROADWAYS!

LOCATIONS IMPACTED INCLUDE...
LYNN...BEVERLY...PEABODY...HAMILTON...WENHAM...MELROSE...SAUGUS...
DANVERS...WAKEFIELD...READING...STONEHAM...WINCHESTER...MIDDLETON...
LYNNFIELD...NORTH READING...IPSWICH...TOPSFIELD...BOXFORD AND ESSEX.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND DESTRUCTIVE HAIL. GO
INSIDE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. DRIVERS SHOULD EXPECT POOR VISIBILITY AND AVOID FLOODED
ROADS.

&&

LAT...LON 4272 7078 4270 7078 4269 7079 4267 7073
      4265 7076 4265 7074 4256 7079 4254 7090
      4253 7088 4250 7089 4250 7085 4250 7086
      4243 7098 4245 7102 4243 7103 4244 7116
      4269 7105 4270 7082 4272 7079
TIME...MOT...LOC 2005Z 264DEG 28KT 4268 7099 4244 7111 

$$

JWD

143 
WWUS51 KBOX 232026
SVSBOX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
426 PM EDT TUE JUL 23 2013

MAC009-017-232036-
/O.EXP.KBOX.SV.W.0064.000000T0000Z-130723T2030Z/
MIDDLESEX MA-ESSEX MA-
426 PM EDT TUE JUL 23 2013

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MIDDLESEX AND CENTRAL
ESSEX COUNTIES WILL EXPIRE AT 430 PM EDT...
    
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OFF THE 
COAST. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

&&

LAT...LON 4272 7078 4270 7078 4269 7079 4267 7073
      4265 7076 4265 7074 4256 7079 4254 7090
      4253 7088 4250 7089 4250 7085 4250 7086
      4243 7098 4245 7102 4243 7103 4244 7116
      4269 7105 4270 7082 4272 7079
TIME...MOT...LOC 2026Z 269DEG 23KT 4268 7099 4244 7111 

$$

JWD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
338 PM EDT TUE JUL 23 2013

.SYNOPSIS...

SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO THE EARLY EVENING
HOURS GRADUALLY DISSIPATING. A RENEWED CHANCE OF WET WEATHER
ACTIVITY IS POSSIBLE WEDNESDAY AHEAD OF A SWEEPING COLD FRONT
WHICH WILL EXIT OUT INTO THE WATERS INTO WEDNESDAY NIGHT. COOLER
AND LESS HUMID WEATHER FOLLOWS THEREAFTER FOR THURSDAY AND
FRIDAY. WARMER AIR RETURNS NEXT WEEKEND BEFORE A COLD FRONT BRINGS
SCATTERED SHOWERS/THUNDERSTORMS SUNDAY...POSSIBLY LINGERING INTO
MONDAY

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...

*** FLASH FLOOD WATCH IS IN EFFECT TILL THIS EVENING***

AFTERNOON SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO THE EARLY
EVENING HOURS GRADUALLY DISSIPATING TOWARDS MIDNIGHT. STARTING TO
SEE DEVELOPING CONGEAL INTO A LINE ALONG A WEAK FRONTAL BOUNDARY
ATTENDANT TO A BROAD AREA OF LOW PRESSURE OVER SOUTHERN NEW
ENGLAND. SOME OF THE CELLS ARE REACHING UP TO 30-40 KFT WITH
SIGNIFICANT DBZ/S. SUBSEQUENTLY...WHILE GUSTY WINDS OF 20 TO 30
MPH ARE EXPECTED WITH STORMS...COULD SEE ISOLATED STRONGER WHICH
COULD LEAD TO WIND DAMAGE.

OTHERWISE THERE CONTINUES THE THREAT OF HEAVY RAIN /WITH HOURLY
RAINFALL RATES UP TO AROUND 1.5 INCHES/ AND FLASH FLOODING BUT
WITH THE THREAT BECOMING MORE ISOLATED...WILL ALLOW THE FLASH
FLOOD WATCH TO DROP AT 8 PM. HRRR MODEL IS STILL DOING WELL IN
INITIALIZING WITH THE CURRENT CONDITIONS AND FORECASTING
EXPECTATIONS. WILL FOLLOW IT CLOSELY FOR THE EVENING FORECAST.

SOUTHWEST WINDS GUSTING ACROSS THE SOUTHCOAST AND ACROSS THE CAPE
WITH GUSTS UP TO AROUND 20 TO 25 MPH. EXPECT WINDS TO DIMINISH
INTO THE EVENING. CLOUDS IN ABUNDANCE...BUT SOME CLEARING IS
POSSIBLE OVER THE WESTERN ZONES. NEVERTHELESS...ABUNDANCE OF
MOISTURE AND SOUTHERLY WIND FLOW PRESENTS THE THREAT OF SOME
PATCHY FOG...ESPECIALLY ALONG THE COASTS. LOWS DOWN TO THE MID-
TO UPPER-70S BY WEDNESDAY MORNING.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...

WEDNESDAY...

COLD FRONT SWEEPS THROUGH THE REGION DURING THE MIDDAY HOURS...THE
PROXIMITY OF WHICH WILL BE ROUGHLY ALONG AND PARALLEL TO THE I-95
CORRIDOR AROUND MIDDAY. MAIN QUESTION IS WHETHER WE WILL SEE SOME
WET WEATHER AHEAD OF THE FRONT.

CONSIDERING AVAILABLE MOISTURE /PWATS AROUND 1.25 INCHES/ COUPLED
WITH SUFFICIENT DEEP-LAYER ASCENT AND UNI-DIRECTIONAL WEST-
SOUTHWEST WIND SHEAR /25-30 KTS/...EXPECT SHOWERS AND POSSIBLE
THUNDERSTORMS AHEAD OF THE COLD FRONT IN AN ENVIRONMENT FAVORABLE
FOR UPDRAFT SUSTAINMENT. SOME QUESTION OF AVAILABLE
INSTABILITY...IMPORTANTLY WHETHER CLOUD DECKS WILL BREAK ALLOWING
FOR SUNSHINE. CONFIDENT IN SEEING SUNSHINE WHICH WILL ALLOW HIGHS
AROUND THE MID 80S. WITH THAT FORECAST GUIDANCE SUPPORTS UP TO
1000 J/KG MUCAPE. CONSIDERING...NOT MUCH CONFIDENCE FOR SEVERE
WEATHER THREATS...BUT BELIEVE THERE WILL BE POCKETS OF HEAVY RAIN
WHICH COULD LEAD TO LOCALIZED FLOODING.

GREATEST CONFIDENCE WITH THE THE 23.0Z ECMWF WHICH INITIALIZED WELL
WITH THE MORNING OUTCOMES. 23.12Z HIGH-RES NAM AND 23.09Z SREF
SUPPORT THE ECMWF. NOTABLY DOWNSTREAM TOWARDS THE EASTERN GREAT
LAKES...JUST THE LOW-LEVEL FORCING AHEAD OF THE LEAD IMPULSE ALOFT
IS GENERATING SHOWER AND THUNDERSTORM ACTIVITY.

WEDNESDAY NIGHT...

HIGH PRESSURE BUILDS SOUTH AND EAST OUT OF CANADA. FEEL THE INTERIOR
WILL BE DRY...BUT SHOWERS WILL BE POSSIBLE ALONG THE SOUTH COAST AS
A MID-LEVEL IMPULSE ROTATING THROUGH THE BROADER TROUGH LIFTS
NORTHEAST ALONG THE OFFSHORE FRONTAL BOUNDARY AND DEEPER AXIS OF
MOISTURE. WITH CLEARING NORTH AND WEST...THIS WILL PERMIT LOWS TO
FALL TO AROUND 50 DEGREES...WHILE REMAINING MILD SOUTH AND EAST
TOWARDS THE CLOUDS AND ANTICIPATED SHOWERY WEATHER. NO EXPECTATION
FOR ANY FLOODING WITH SHOWERS.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...

HEADLINES...

* LESS HUMID WEATHER ARRIVES LATER WED
* NORTHEAST/GRTLKS LONG WAVE TROUGH WILL YIELD SEASONABLE TEMPS
* ACTIVE WEATHER PATTERN WILL RESULT IN SEVERAL BOUTS OF CONVECTION

SYNOPTIC OVERVIEW...

GOOD MODEL AGREEMENT AMONG THE GFS AND ECMWF ENSEMBLES IN
MAINTAINING LONG WAVE TROUGH OVER THE NE/GREAT LKS AND EASTERN
CANADA THIS PERIOD. THIS WILL PRECLUDE EXCESSIVE HEAT/HUMIDITY FROM
ENTERING SOUTHERN NEW ENGLAND AND KEEPING TEMPS AT OR SLIGHTLY
COOLER THAN NORMAL. AS FOR PRECIP...THIS PATTERN WILL FAVOR AN
ACTIVE NORTHERN STREAM JET ACROSS THE NORTHEAST RESULTING IN SEVERAL
BOUTS OF CONVECTION. SO A BREAK FROM THE HEAT AND RELATIVELY DRY
WEATHER PATTERN OF THIS MONTH.

SENSIBLE WEATHER DETAILS...

WED...MAIN PLUME OF MOISTURE MOVES OFFSHORE TONIGHT WITH LEAD SHORT
WAVE TROUGH. HOWEVER SECONDARY/TRAILING SHORT WAVE TROUGH SWEEPS
ACROSS THE AREA WED. THIS FEATURE MAY TOUCH OFF A FEW TSTMS OVER
EASTERN MA AND RI WHERE INSTABILITY LINGERS AND LOW LEVEL
CONVERGENCE IS GREATEST. CAN/T RULE OUT ONE OR TWO STRONG STORMS
WITH CAPES OF 1000-1500J/KG ALONG WITH DEEP LAYER SHEAR OF 25-30 KT.
OTHERWISE BIG IMPROVEMENT FROM TODAY AS DEPARTING SHORT WAVE ADVECTS
MUCH DRIER AND LESS HUMID AIR OVERSPREADS THE REGION LATER WED
AND WED NGT FROM NW TO SE. COULD BE WARMEST DAY OF THE WEEK AS
COOLER AIRMASS LAGS UNTIL WED NGT/THU. THUS HIGHS 85-90 LIKELY.

THU/FRI... FRONT GETS HUNG UP OVER CAPE COD/ISLANDS OR JUST
OFFSHORE. THUS CLOUDS MAY LINGER ACROSS THIS AREA WITH MORE SUNSHINE
INLAND THU. BY FRI WEAK WAVE OF LOW PRES MAY TRAVERSE NE ALONG THE
FRONT AND MAY YIELD A LOW RISK OF RAIN FOR SOUTHEAST MA...WITH LOWER
PROBABILITY OF RAIN INLAND. 00Z NAM AND GFS MORE SUPPRESSED WITH THIS
FRONTAL WAVE. HOWEVER 00Z ECMWF MORE ROBUST AND BRINGS QPF ACROSS
MUCH OF SOUTHERN NEW ENGLAND. 00Z GEFS IS SOMEWHERE IN BETWEEN WITH
30-50% PROBS OF RAIN FRI/FRI NGT ACROSS SOUTHEAST MA. GIVEN
UNCERTAINTY WILL HANDLE THIS WITH CHANCE POPS CAPE COD AND
ISLANDS...SLIGHT CHANCE ELSEWHERE.

COULD BE A BIT BREEZY AND COOL THU/FRI ACROSS EASTERN MA WITH NE
WINDS AS FRONT LURKS JUST OFFSHORE AND HIGH PRES BUILDS INTO THE ST
LWRNC RVR VLY.

SAT/SUN/MON...DRY WEATHER APPEARS TO LINGER INTO SAT ALONG WITH
SEASONABLE TEMPS. HOWEVER NEXT TROUGH ARRIVES SUN/MON BRINGING THE
RISK OF ANOTHER ROUND OF SHOWERS/TSTMS.

&&

.AVIATION /19Z TUESDAY THROUGH SUNDAY/...

FORECASTER CONFIDENCE LEVELS...

LOW...LESS THAN 30 PERCENT.
MODERATE...30 TO 60 PERCENT.
HIGH...GREATER THAN 60 PERCENT.

SHORT TERM /INTO WEDNESDAY NIGHT/...MODERATE CONFIDENCE.

18Z UPDATE...

BANDS OF SHRA/TSRA DEVELOPING ACROSS SOUTHERN NEW ENGLAND WILL
PREVAIL INTO THE EARLY EVENING HOURS. HAVE GONE -RA VCTS WITH
EXPECTATION OF THREATS...BUT WITH ANY IMPACTS...ANTICIPATING
SOUTHWESTERLY WINDS AROUND 10G20KT ALONG WITH IFR VSBYS.

ACTIVITY SHOULD DISSIPATE TOWARDS THE EARLY EVENING HOURS BECOMING
QUIET FOR THE MOST PART OVERNIGHT. OVERNIGHT VSBYS A CHALLENGE
WITH EXPECTED WEST-SOUTHWEST FLOW. WILL PREVAIL MVFR. NEED TO
MONITOR FOR EITHER THE DEVELOPMENT OF IFR CIGS AND/OR VSBYS. WITH
FLOW PREVAILING 10 KTS...HAVE GREATER CONFIDENCE WITH LOW CIGS.

A COLD FRONT WILL SWEEP ACROSS THE TERMINALS WEDNESDAY ALONG AND
AHEAD OF WHICH SHRA/TSRA WILL BE POSSIBLE...BUT ISOLATED TO WIDELY
SCATTERED. PERHAPS TEMPO MVFR IMPACTS. ACTIVITY DIMINISHING INTO
EVENING AS THE FRONT MOVES OFFSHORE. COULD SEE SOME LOCALIZED
IMPACTS ALONG THE SOUTH SHORE DOWN TO MVFR WITH -SHRA.

KBOS TERMINAL...MODERATE CONFIDENCE IN TAF. TSRA CONSTANTLY
DEVELOPING WEST WHICH WILL REQUIRE MULTIPLE AFTERNOON UPDATES.
AGAIN...STORMS PRODUCING TEMPO 10G20KT WITH MVFR/IFR IMPACTS.

KBDL TERMINAL...MODERATE CONFIDENCE IN TAF. LINE OF SHRA/TSRA
DEVELOPING NORTH AND WEST. HAVE TIMED INTO TAF AS BEST AS
POSSIBLE. TEMPO MVFR/IFR IMPACTS WITH STORMS ANTICIPATED.

OUTLOOK...THURSDAY THROUGH SATURDAY...

THU AND FRI...LOW CONFIDENCE REGARDING AREAL COVERAGE OF POSSIBLE
RAIN SHIELD AND ASSOCIATED MVFR CONDITIONS. ENE WINDS. RAIN MAY
IMPACT SOUTHEAST MA.

SAT...MODERATE CONFIDENCE. VFR. SCT PM SHOWERS/TSTMS MAINLY IN
WESTERN NEW ENGLAND.

&&

.MARINE...
FORECASTER CONFIDENCE LEVELS...

LOW...LESS THAN 30 PERCENT.
MODERATE...30 TO 60 PERCENT.
HIGH...GREATER THAN 60 PERCENT.

SHORT TERM /INTO WEDNESDAY NIGHT/...MODERATE CONFIDENCE.

SHOWERS AND THUNDERSTORMS WILL IMPACT THE NEAR-COASTAL WATERS INTO
THE EARLY EVENING HOURS...GRADUALLY DISSIPATING INTO THE OUTER
WATERS. HEAVY RAIN WITH REDUCED VISIBILITIES ALONG WITH FREQUENT
LIGHTNING SHOULD BE ANTICIPATED WITH THESE STORMS. GUSTY WINDS
ANTICIPATED WHICH COULD EXCEED GALE FORCE.

OTHERWISE WHILE SOUTHWEST WINDS ARE GUSTING AROUND 20 KTS ACROSS
THE CAPE PRESENTLY...FEEL SUCH WINDS WILL DIMINISH THROUGH THE
EVENING HOURS. WILL HOLD WINDS AND SEAS BELOW SMALL CRAFT ADVISORY
THRESHOLDS. STILL CONCERNS FOR PATCHY FOG ALONG THE SOUTH COAST
WITH THE POTENTIAL FOR VISIBILITIES DOWN TO A QUARTER MILE OR
LESS...BUT HAVE LOW CONFIDENCE AT THIS TIME.

OUTLOOK...WEDNESDAY THROUGH SATURDAY...

THURSDAY AND FRIDAY...LOW CONFIDENCE ON POTENTIAL RAIN SHIELD AND
ASSOCIATED VSBYS. ENE WINDS WITH FRONTAL BOUNDARY JUST OFFSHORE. LOW
PRES MAY RIDE ALONG THIS FRONT WITH ITS RAIN SHIELD POSSIBLY
IMPACTING THE SOUTHERN NEW ENGLAND WATERS.

SATURDAY...MODERATE CONFIDENCE.
S/SE FLOW GETS UNDERWAY AND SHOULD VEER TO SW LATE AS COLD FRONT
PUSHES INTO UPSTATE NY. WINDS AND SEAS SHOULD REMAIN BELOW SCA.

&&

.TIDES/COASTAL FLOODING...

ASTRONOMICAL TIDES WILL BE ABNORMALLY HIGH DURING THE HIGH TIDE
CYCLE NEAR MIDNIGHT TONIGHT. BOS TIDE IS AGAIN 12.1 FT. HOWEVER
WITH OFFSHORE FLOW...BELIEVE THE THREAT FOR COASTAL FLOODING WILL
BE LOW. THERE MAY BE POCKETS OF SPLASHOVER...BUT WITH LOW
CONFIDENCE HAVE HOLD OFF ON ANY ISSUING ANY STATEMENT AT THIS
TIME.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...FLASH FLOOD WATCH UNTIL 8 PM EDT THIS EVENING FOR CTZ002>004.
MA...FLASH FLOOD WATCH UNTIL 8 PM EDT THIS EVENING FOR MAZ002>021-
     026.
NH...FLASH FLOOD WATCH UNTIL 8 PM EDT THIS EVENING FOR NHZ011-012-
     015.
RI...FLASH FLOOD WATCH UNTIL 8 PM EDT THIS EVENING FOR RIZ001>007.
MARINE...NONE.

&&

SYNOPSIS...WTB/SIPPRELL
NEAR TERM...SIPPRELL
SHORT TERM...SIPPRELL
LONG TERM...WTB
AVIATION...WTB/SIPPRELL
MARINE...WTB/SIPPRELL
TIDES/COASTAL FLOODING...

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
637 AM EDT TUE JUL 23 2013

CTZ002>004-MAZ002>021-026-NHZ011-012-015-RIZ001>007-241045-
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER MA-WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA-
SUFFOLK MA-EASTERN NORFOLK MA-NORTHERN BRISTOL MA-
WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-SOUTHERN BRISTOL MA-
SOUTHERN PLYMOUTH MA-NORTHERN MIDDLESEX MA-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI-
637 AM EDT TUE JUL 23 2013

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN
CONNECTICUT...CENTRAL MASSACHUSETTS...EASTERN
MASSACHUSETTS...NORTHEASTERN MASSACHUSETTS...SOUTHEASTERN
MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW
HAMPSHIRE...NORTHERN RHODE ISLAND AND SOUTHERN RHODE ISLAND.

.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.

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

MAZ022>024-RIZ008-241045-
BARNSTABLE MA-DUKES MA-NANTUCKET MA-BLOCK ISLAND RI-
637 AM EDT TUE JUL 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN MASSACHUSETTS
AND SOUTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND THUNDERSTORMS MAY PRODUCE TORRENTIAL RAINFALL TODAY.
THERE IS THE POSSIBILITY OF LOCALIZED FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

ANZ230>237-250-251-254>256-241045-
BOSTON HARBOR-CAPE COD BAY-NANTUCKET SOUND-VINEYARD SOUND-
BUZZARDS BAY-RHODE ISLAND SOUND-NARRAGANSETT BAY-BLOCK ISLAND SOUND-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK NATIONAL
MARINE SANCTUARY-MASSACHUSETTS BAY AND IPSWICH BAY-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD AND
NANTUCKET-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT TO
20 NM SOUTH OF BLOCK ISLAND-
637 AM EDT TUE JUL 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS COASTAL WATERS
AND RHODE ISLAND COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

HEAVY SHOWERS AND SCATTERED THUNDERSTORMS WITH TROPICAL
DOWNPOURS...GUSTY WINDS AND POOR VISIBILITY EXPECTED TODAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

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

FOR THE LATEST UPDATES...PLEASE VISIT OUR WEBPAGE AT
WWW.WEATHER.GOV/BOSTON

YOU CAN FOLLOW US ON FACEBOOK AT
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.BOSTON.GOV

YOU CAN FOLLOW US ON TWITTER AT
@NWSBOSTON

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
234 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

&&

123

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
235 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

&&

123

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
236 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

&&

123

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
238 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

1230 PM     FLASH FLOOD      SHREWSBURY              42.30N  71.72W
07/23/2013                   WORCESTER          MA   AMATEUR RADIO

            WEST BOUND LANE ON RTE 9 CLOSED DUE TO FLOODING

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

0115 PM     FLASH FLOOD      CAMBRIDGE               42.38N  71.12W
07/23/2013                   MIDDLESEX          MA   AMATEUR RADIO

            MAIN ST CLOSED DUE TO FLOODING

0137 PM     FLASH FLOOD      BOSTON                  42.32N  71.07W
07/23/2013                   SUFFOLK            MA   AMATEUR RADIO

            COLUMBIA RD AT HAMIILTON RD NEAR UNDERPASS 3 FEET OF
            WATER. ROAD CLOSED

&&

123

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
256 PM EDT TUE JUL 23 2013

MAZ004>007-011-012-014-026-NHZ012-232000-
SOUTHEAST MIDDLESEX MA-NORTHWEST MIDDLESEX COUNTY MA-
CENTRAL MIDDLESEX COUNTY MA-NORTHERN WORCESTER MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER MA-EASTERN ESSEX MA-WESTERN ESSEX MA-
EASTERN HILLSBOROUGH NH-
256 PM EDT TUE JUL 23 2013

...STRONG THUNDERSTORMS HEADING THROUGH CENTRAL MASSACHUSETTS...

AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A LINE OF STRONG THUNDERSTORMS FROM NASHUA TO WEST BOYLSTON TO
WILBRAHAM...MOVING EAST AT 45 MPH.

TORRENTIAL RAINFALL AND WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH
THESE STORMS AS THEY HEAD INTO EASTERN MASSACHUSETTS THROUGH 4 PM.

THOSE WITH OUTDOOR PLANS SHOULD HEAD INSIDE AT THE FIRST SIGN OF
THREATENING WEATHER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THESE STORMS APPROACH. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS DOWNED BRANCHES.

MINOR URBAN AND POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4287 7082 4282 7081 4281 7087 4281 7081
      4270 7078 4271 7078 4276 7081 4275 7083
      4270 7083 4266 7071 4210 7166 4207 7253
      4239 7187 4281 7147 4283 7139 4277 7135
      4274 7119 4281 7116 4281 7107 4289 7093
TIME...MOT...LOC 1851Z 248DEG 51KT 4272 7147 4241 7183 4213 7245

JWD

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
334 PM EDT TUE JUL 23 2013

MAZ005>007-014-015-232030-
SUFFOLK MA-SOUTHEAST MIDDLESEX MA-CENTRAL MIDDLESEX COUNTY MA-
EASTERN ESSEX MA-WESTERN ESSEX MA-
334 PM EDT TUE JUL 23 2013

...STRONG THUNDERSTORMS IN NORTHEAST MASSACHUSETTS...

AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LOWELL TO
MAYNARD...MOVING EAST AT 25 MPH.

TORRENTIAL RAINFALL AND WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
LOWELL...CAMBRIDGE...LYNN...SOMERVILLE...WALTHAM...BEVERLY...
DRACUT...LINCOLN...WESTON...MALDEN...MEDFORD...PEABODY...REVERE...
ARLINGTON...HAMILTON...WENHAM...EVERETT...WOBURN...CHELSEA AND
WATERTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THESE STORMS APPROACH. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS DOWNED BRANCHES.

MINOR URBAN AND POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4268 7075 4255 7082 4253 7090 4254 7087
      4250 7089 4252 7085 4249 7086 4246 7094
      4242 7090 4242 7091 4245 7093 4242 7099
      4234 7096 4239 7104 4239 7107 4234 7101
      4239 7154 4269 7137
TIME...MOT...LOC 1930Z 271DEG 23KT 4266 7134 4242 7146

JWD