Connecticut, 2012

Flood and Damaging Winds in Connecticut, September 18, 2012

September 18, 2012 · NWS BOX · 11 events in 3 counties and zones

A strong cold front moved through southern New England, resulting in a line of thunderstorms that produced strong to severe winds. In addition, a strong low level jet produced gusty strong to high winds with the front.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$70,000
Crop damage
None recorded
Events
11

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS BOX wrote it up.

A strong cold front moved through southern New England, resulting in a line of thunderstorms that produced strong to severe winds. In addition, a strong low level jet produced gusty strong to high winds with the front.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Boston/Norton, MA wrote its last area forecast discussion before the first event at Sep 18, 7:10 PM EST, 1 hour 36 minutes earlier.

Area forecast discussion, Sep 18, 7:10 PM EST, 1 hour 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
810 PM EDT TUE SEP 18 2012

.SYNOPSIS...
A COLD FRONT WILL BRING HEAVY RAIN AND A PERIOD OF STRONG TO
POSSIBLY DAMAGING WINDS TONIGHT.  THREATS WILL DIMINISH INTO
WEDNESDAY MORNING AS THE COLD FRONT PUSHES OFFSHORE. MAINLY DRY
WEATHER WILL FOLLOW THROUGH THE FIRST PART OF SAT...OTHER THAN
PERHAPS A FEW SPOT SHOWERS ON THE COAST. ANOTHER COLD FRONT MAY
BRING A ROUND OF SHOWERS SOMETIME SATURDAY NIGHT AND/OR SUNDAY. DRY
WEATHER LIKELY FOLLOWS FOR THE START OF THE NEXT WORK WEEK.

&&

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

750 PM UPDATE...
THE MAIN UPDATE WAS TO UPGRADE TO A HIGH WIND WARNING ACROSS
MA/CT/RI.  WERE ALREADY GETTING SOME DAMAGE REPORTS ACROSS THE
REGION AND RADAR IMAGERY IS SHOWING A FINE LINE ACROSS EASTERN NEW
YORK WITH AN INCREASING LOW LEVEL JET.  THEREFORE...A BRIEF BURST OF
45 KNOT WIND GUSTS WILL BE POSSIBLE AS THIS FINE LINE SWEEPS ACROSS
THE REGION OVERNIGHT.  GIVEN THE FULLY LEAFED TREES...OPTED TO
UPGRADE TO A HIGH WIND WARNING MAINLY FOR IMPACT.  STRONGEST WINDS
WILL BE THROUGH MIDNIGHT ACROSS THE INTERIOR...AND 3 AM ALONG THE
COASTAL PLAIN.

IN ADDITION...THE STORM PREDICTION CENTER HAS ISSUED A SEVERE
THUNDERSTORM WATCH FOR OUR REGION THROUGH 3 AM.  WHILE NOT SURE HOW
MUCH LIGHTNING THERE WILL BE...ANY BOWING SEGMENTS COULD PRODUCE
LOCALLY STRONGER WIND GUSTS GIVEN DEEP SHEAR/INCREASING LOW LEVEL
JET.

     HEAVY RAIN...

STRONG FRONTOGENETICAL LIFT OF A VERY MOIST SUB-TROPICAL ENVIRONMENT
AHEAD OF THE SFC COLD FRNT IS EXPECTED. PWATS AROUND 2 INCHES IS
ANTICIPATED WITH A CONDITIONALLY UNSTABLE MOIST ADIABATIC PROFILE.
THE HEAVIEST OF THE RAIN WILL BE ASSOC WITH THE AFOREMENTIONED
NEAR-FRONTAL SQUALL LINE AHEAD OF THE SFC COLD FRNT. RAINFALL
AMOUNTS OF 1 INCH PER HR WILL BE PSBL ALONG WITH VISIBILITY IMPACTS
WHICH CAN MAKE TRAVELING HAZARDOUS. TOTAL RAINFALL AMOUNTS WILL BE
AROUND 2 INCHES WITH LOCALLY HIGHER AMOUNTS.

WILL CONTINUE PRIOR THINKING OF THE GREATEST FLOODING THREAT TO BE
NUISANCE FLOODING OF URBAN AREAS ESPECIALLY WITH THE POSSIBILITY OF
HEAVY RAINFALL IN A SHORT PERIOD OF TIME. IT IS STILL PLAUSIBLE
SMALL BASINS...STREAMS...AND CREEKS MAY BECOME FLASHY...MAIN-STEM
RIVERS SHOULD BE FINE AS THE RGN HAS SEEN LITTLE RAIN OVER THE LAST
WEEK AND RIVERS REMAIN AT OR BELOW THEIR NORMAL LVLS.

     COASTAL FLOODING...

SEE THE TIDES AND COASTAL FLOODING SECTION OF THE DISCUSSION BELOW.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY/...
COLD FRNT AND ATTENDANT RAINS LINGER ALONG THE CAPE POSSIBLY FOR THE
FIRST HR OR TWO. OTHERWISE GRADUALLY CLEARING CONDITIONS WITH THE
EXPECTATION OF LOW-LVLS MIXING OUT DURING THE DAY WITH AMBIENT
SUNSHINE RESULTING IN FASTER W/NW FLOW ALOFT MIXING DOWN. DRIER AIR
MOVING INTO THE RGN...MAY SEE SOME DIURNAL CU THAT SHOULD QUICKLY
DISSIPATE. MAX TEMPS AROUND THE LOW 70S WITH GUSTY W/NW WINDS AROUND
15 MPH.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/...
HIGHLIGHTS...

 * SLIGHTLY BELOW NORMAL TEMPS WED NIGHT AND THU
 * MAINLY DRY THROUGH EARLY SAT OTHER THAN A SPOT SHOWER ON COAST
 * A COLD FRONT MAY BRING A ROUND OF SHOWERS SOMETIME SAT NIGHT/SUN
 * MAINLY DRY WEATHER LIKELY FOLLOWS NEXT MON-TUE

DETAILS...

WEDNESDAY NIGHT...
HIGH PRESSURE BUILDING ACROSS NEW ENGLAND BEHIND THE COLD FRONT WILL
BRING A DRY AND CHILLY NIGHT.  LOW TEMPS WILL LIKELY BOTTOM OUT IN
THE MIDDLE TO UPPER 30S ACROSS THE NORMALLY COOLER OUTLYING
LOCATIONS OF SOUTHWEST NH/WESTERN MA...TO MAINLY THE 40S ELSEWHERE.
SOME FROST MAY OCCUR ACROSS OUR NORTHWEST INTERIOR ZONES...BUT ITS
UNCERTAIN WHETHER IT WILL BE WIDESPREAD ENOUGH TO WARRANT A FROST
ADVISORY.  SOMETHING LATER SHIFTS WILL HAVE TO CONSIDER.

THURSDAY...
HIGH PRESSURE CENTERED OVER QUEBEC AND NORTHERN NEW ENGLAND WILL
RESULT IN GENERALLY DRY WEATHER WITH SLIGHTLY BELOW NORMAL TEMPS.
HIGH SHOULD BE HELD IN THE 60S TO AROUND 70...WITH THE COOLEST
READINGS ALONG THE COAST WITH AN ONSHORE FLOW.

THURSDAY NIGHT AND FRIDAY...
SOME UNCERTAINTY WITH A WEAK WAVE OF LOW PRESSURE TRACKING SOUTHEAST
OF THE BENCHMARK.  IT LOOKS LIKE AT THIS POINT THAT MOST OF THE
PRECIPITATION WILL STAY OFFSHORE...ALTHOUGH A FEW SPOT SHOWERS MAY
GRAZE THE COAST.  WE DID INCLUDE SOME LOW POPS FOR PERHAPS A FEW
SPOT SHOWERS ALONG THE COAST THU NIGHT/FRI WITH THE BEST CHANCE
ACROSS THE CAPE/NANTUCKET.  HOWEVER...WERE STILL 60+ HOURS OUT SO
CAN/T COMPLETELY RULE OUT A WETTER SCENARIO IF LATER MODEL RUNS
TREND WEST.  LATER SHIFTS WILL HAVE TO MONITOR TRENDS.

SATURDAY AND SUNDAY...
GENERALLY EXPECT A MILD AND MAINLY DRY DAY SATURDAY OUT AHEAD OF A
COLD FRONT.  HIGH TEMPS SHOULD RECOVER WELL INTO THE 70S.  A COLD
FRONT MAY BRING A ROUND OF SHOWERS SOMETIME SAT NIGHT AND/OR
SUNDAY...BUT TIMING IS LOW THIS FAR OUT.

MONDAY AND TUESDAY...
MAINLY DRY WEATHER WILL PROBABLY FOLLOW WITH NEAR OR JUST BELOW
NORMAL TEMPERATURES FOR THE BEGINNING OF THE NEXT WORK WEEK.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
FORECASTER CONFIDENCE LEVELS...
  LOW...LESS THAN 30 PERCENT
  MODERATE...30 PERCENT TO 60 PERCENT
  HIGH...GREATER THAN 60 PERCENT

OVERVIEW...
MODERATE TO HIGH CONFIDENCE IN TRENDS INTO THE EVNG PD.
EXPECTATION IS FOR WINDS TO INCREASE AND CIGS TO LOWER AS THE SFC
COLD FRNT APPROACHES WITH A NEAR-FRONTAL FINE LINE THAT WAS
APPROACHING WESTERN MA. ANTICIPATE THAT AS THE SQUALL LINE PUSHES
THRU THE TERMINALS...MVFR CIGS WILL PREVAIL WITH SOME INTERMITTENT
IFR. VSBYS WHILE PREVAILING MVFR MAY ALSO TEMPO IFR WITH +RA. LOW
CONFIDENCE ON TSRA...THINKING ISOLATED CHCS. M EXPECT STRONG TO
DAMAGING SLY WINDS GUSTING AROUND 40 TO 45 KTS /MORESO ALONG THE
EXPOSED S SHORE TERMINALS/.

SFC COLD FRNT OUT BY MORNING...LINGERING ALONG THE CAPE. WINDS
BACK W/NW WITH GRADUAL CLEARING THRU THE DAY. ANTICIPATE
INCREASING GUSTS INTO THE MIDDAY-AFTN PD.

KBOS TAF...
MODERATE TO HIGH CONFIDENCE. FINE LINE IS CENTERED AROUND 3 TO
6Z WITH GREATEST IMPACTS.

KBDL TAF...
MODERATE TO HIGH CONFIDENCE. FINE LINE IS CENTERED THROUGH 3Z WITH
THE GREATEST IMPACTS.

OUTLOOK...WEDNESDAY NIGHT THROUGH SATURDAY...

WEDNESDAY NIGHT THROUGH SATURDAY...
MODERATE CONFIDENCE. MAINLY VFR CONDITIONS EXPECTED OVER THIS TIME.
CAN/T RULE OUT A PERIOD OF MVFR CEILINGS ALONG THE COAST WITH
ONSHORE FLOW.

SATURDAY NIGHT AND SUNDAY...
LOW TO MODERATE CONFIDENCE.  A PERIOD OF MVFR CONDITIONS ARE
POSSIBLE WITH A ROUND OF SHOWERS ASSOCIATED WITH A COLD FRONT.  LOW
CONFIDENCE ON TIMING.

&&

.MARINE...
TONIGHT INTO WEDNESDAY...MODERATE CONFIDENCE.
COLD FRNT WILL SWEEP INTO THE WATERS AROUND MIDNIGHT...PUSHING
WELL OUT TO SEA AS LATE AS MIDDAY WEDNESDAY. CONVECTIVE ACTIVITY
IS EXPECTED WITH THE MAIN THREATS OF LIGHTNING...HEAVY RAIN...
REDUCED VISIBILITIES...AND STRONG WINDS ANTICIPATED. IN REGARDS TO
WINDS...STRONG SOUTHERLY FLOW IS EXPECTED AHEAD OF THE COLD FRNT
WITH GALE FORCE WINDS...BUT GUSTS UP TO 50 KTS /STORM FORCE/ ARE
PSBL. GALE WARNINGS REMAIN IN EFFECT. WAVES EXPECTED TO BUILD TO
AROUND 12 FT OVRNGT WITH THE SOUTHERLY FETCH GRADUALLY DIMINISHING
THRU WEDNESDAY.

IN WAKE OF THE COLD FRNT WEDNESDAY WINDS WILL BACK OUT OF THE W/NW
WITH GUSTS AROUND 15-20 KTS. CONDITIONS ACROSS THE WATERS SHOULD
DIMINISH TO SMALL CRAFT ADV ACCORDINGLY. SEAS LIKELY TO REMAIN
ABOVE 5 FT INTO THE EVNG PD.

OUTLOOK...WEDNESDAY NIGHT THROUGH SUNDAY...

MODERATE TO HIGH CONFIDENCE.  NORTHEAST WINDS MAY GUST TO AROUND 25
KNOTS AT TIMES OVER THE OPEN OCEAN WED NIGHT INTO EARLY FRI IN THE
COOL AIR ADVECTION PATTERN.  WHILE THE WINDS SHOULD DIMINISH SOME
LATER ON FRI...SCA SEAS MAY LINGER ACROSS THE OUTER-WATERS RIGHT
THROUGH THE WEEKEND.  THIS A RESULT OF SWELL FROM A DISTANT LOW
PRESSURE SYSTEM WELL OFFSHORE.

&&

.TIDES/COASTAL FLOODING...
STRONG SOUTHERLY FLOW WILL BRING A STORM SURGE OF 1.5 TO PERHAPS 2
FEET TO SOUTH COASTAL MA/RI WITH TONIGHTS HIGH TIDE. THIS WILL
RESULT IN MINOR COASTAL FLOODING ESPECIALLY IN THE UPPER PARTS OF
BUZZARDS BAY AND NARRAGANSETT BAY WHERE CHANNELING MAY COME INTO
PLAY. A FEW LOCATIONS MAY EXPERIENCE BRIEF ROAD CLOSURES AROUND
THE TIME OF HIGH TIDE...OTHERWISE IMPACTS SHOULD BE MINIMAL.

USED ESTOFS STORM SURGE GUIDANCE BUT ADJUSTED SLIGHTLY UPWARD
BASED UPON AFTERNOON TIDAL DEPARTURES ABOUT A FOOT ALONG THE SOUTH
COAST. ETSS GUIDANCE IS WAY UNDERDONE AT ONLY HALF FOOT STORM
SURGE THIS EVENING.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...HIGH WIND WARNING UNTIL 6 AM EDT WEDNESDAY FOR CTZ002>004.
MA...HIGH WIND WARNING UNTIL 6 AM EDT WEDNESDAY FOR MAZ002>024-026.
     COASTAL FLOOD ADVISORY UNTIL 2 AM EDT WEDNESDAY FOR MAZ020>022.
NH...WIND ADVISORY UNTIL 6 AM EDT WEDNESDAY FOR NHZ011-012-015.
RI...HIGH WIND WARNING UNTIL 6 AM EDT WEDNESDAY FOR RIZ001>008.
     COASTAL FLOOD ADVISORY UNTIL 2 AM EDT WEDNESDAY FOR RIZ002-
     004>007.
MARINE...GALE WARNING UNTIL 11 AM EDT WEDNESDAY FOR
ANZ231>237-250-251-     254>256.
     GALE WARNING UNTIL 8 AM EDT WEDNESDAY FOR ANZ230.

&&

SYNOPSIS...SIPPRELL/FRANK
NEAR TERM...FRANK/SIPPRELL
SHORT TERM...SIPPRELL
LONG TERM...FRANK
AVIATION...FRANK/SIPPRELL
MARINE...SIPPRELL/FRANK
TIDES/COASTAL FLOODING...STAFF
Hazardous weather outlook, Sep 18, 7:09 PM EST, 1 hour 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
809 PM EDT TUE SEP 18 2012

CTZ002>004-MAZ002>019-023-024-026-RIZ001-003-008-200015-
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-DUKES MA-NANTUCKET MA-
NORTHERN MIDDLESEX MA-NORTHWEST PROVIDENCE RI-WESTERN KENT RI-
BLOCK ISLAND RI-
809 PM EDT TUE SEP 18 2012

...SEVERE THUNDERSTORM WATCH 647 IN EFFECT UNTIL 3 AM EDT
WEDNESDAY...
...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EDT WEDNESDAY...

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

.DAY ONE...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.
   HIGH WIND WARNING.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MAZ020>022-RIZ002-004>007-200015-
SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-BARNSTABLE MA-
SOUTHEAST PROVIDENCE RI-EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-
NEWPORT RI-
809 PM EDT TUE SEP 18 2012

...SEVERE THUNDERSTORM WATCH 647 IN EFFECT UNTIL 3 AM EDT
WEDNESDAY...
...HIGH WIND WARNING IN EFFECT UNTIL 6 AM EDT WEDNESDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 2 AM EDT WEDNESDAY...

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

.DAY ONE...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.
   HIGH WIND WARNING.
   COASTAL FLOOD ADVISORY.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NHZ011-012-015-200015-
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
809 PM EDT TUE SEP 18 2012

...SEVERE THUNDERSTORM WATCH 647 IN EFFECT UNTIL 3 AM EDT
WEDNESDAY...
...WIND ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHERN NEW HAMPSHIRE.

.DAY ONE...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.
   WIND ADVISORY.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ231>237-250-251-254>256-200015-
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-
809 PM EDT TUE SEP 18 2012

...SEVERE THUNDERSTORM WATCH 647 IN EFFECT UNTIL 3 AM EDT
WEDNESDAY...
...GALE WARNING IN EFFECT UNTIL 11 AM EDT WEDNESDAY...

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

.DAY ONE...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.
   GALE WARNING.

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

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

   GALE WARNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230-200015-
BOSTON HARBOR-
809 PM EDT TUE SEP 18 2012

...SEVERE THUNDERSTORM WATCH 647 IN EFFECT UNTIL 3 AM EDT
WEDNESDAY...
...GALE WARNING IN EFFECT UNTIL 8 AM EDT WEDNESDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS COASTAL WATERS.

.DAY ONE...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.
   GALE WARNING.

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

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

   GALE WARNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Sep 18, 6:04 PM EST, 2 hours 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
704 PM EDT TUE SEP 18 2012

CTZ002>004-MAZ002>004-008>011-026-NHZ011-012-015-190030-
CHESHIRE NH-EASTERN FRANKLIN MA-EASTERN HAMPDEN MA-EASTERN HAMPSHIRE
MA-EASTERN HILLSBOROUGH NH-HARTFORD CT-NORTHERN WORCESTER
MA-NORTHWEST MIDDLESEX COUNTY MA-TOLLAND CT-WESTERN AND CENTRAL
HILLSBOROUGH NH-WESTERN FRANKLIN MA-WESTERN HAMPDEN MA-WESTERN
HAMPSHIRE MA-WINDHAM CT-
704 PM EDT TUE SEP 18 2012

AT 700 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.
THE LINE WAS IN THE HUDSON VALLEY...MOVING NORTHEAST AT 50 MPH.

* SOME LOCATIONS AFFECTED INCLUDE... CHARLEMONT...GREENFIELD...
KEENE...MANCHESTER...GARDNER...FITCHBURG...NORTHAMPTON...WESTFIELD...
SPRINGFIELD...ORANGE...SPRINGFIELD...GARDNER...FITCHBURG...
HARTFORD...NEW BRITAIN...AND TOLLAND.

FOR YOUR SAFETY...GET INSIDE WHEN THESE STORMS APPROACH. WINDS MAY BE
STRONG ENOUGH TO BRING DOWN SMALL BRANCHES. HEAVY DOWNPOURS MAY
CAUSE MINOR STREET FLOODING AND PONDING OF WATER IN POOR DRAINAGE
AREAS.  DO NOT DRIVE THROUGH FLOODED ROADS.

&&

LAT...LON 4263 7296 4274 7303 4273 7247 4288 7256
      4316 7246 4313 7205 4321 7191 4312 7185
      4315 7167 4306 7164 4302 7139 4295 7137
      4216 7215 4161 7232 4163 7266 4155 7294
      4180 7302 4197 7290 4197 7303 4210 7308

WTB
Local storm report, Sep 18, 6:21 PM EST, 2 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
721 PM EDT TUE SEP 18 2012

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

0406 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON BRADFORD STREET ALSO TREE DOWN
            ON HOUSE ON FORT STREET

0414 PM     NON-TSTM WND DMG CHESTERFIELD            42.40N  72.85W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            WIRES DOWN ON EAST STREET

0414 PM     NON-TSTM WND DMG BUCKLAND                42.60N  72.78W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            WIRES DOWN ON LABELLE ROAD

0519 PM     NON-TSTM WND DMG WARWICK                 42.68N  72.33W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WENDELL ROAD

0539 PM     NON-TSTM WND DMG NORTHFIELD              42.71N  72.44W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WARWICK ROAD

0553 PM     NON-TSTM WND DMG NEWTON                  42.33N  71.21W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN BLOCKING COUNTRY CLUB ROAD

0554 PM     NON-TSTM WND DMG WEST SPRINGFIELD        42.12N  72.65W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SIKES AVE

0608 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SCHOOL AND MONROE STREET

0625 PM     NON-TSTM WND DMG AUBURN                  42.20N  71.83W
09/18/2012                   WORCESTER          MA   AMATEUR RADIO

            TRE DOWN ON MASS PIKE WESTBOUND NEAR EXIT 10

0631 PM     NON-TSTM WND DMG TOLLAND                 42.08N  73.02W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON RTE 57

0631 PM     NON-TSTM WND DMG GOSHEN                  42.43N  72.80W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON FULLER ROAD

0638 PM     NON-TSTM WND DMG PELHAM                  42.40N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HARKNESS ROAD

0652 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   TRAINED SPOTTER

            TREE DOWN ON NORTH MAIN STREET

&&

WAS
Local storm report, Sep 18, 7:26 PM EST, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
826 PM EDT TUE SEP 18 2012

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

0406 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON BRADFORD STREET ALSO TREE DOWN
            ON HOUSE ON FORT STREET

0414 PM     NON-TSTM WND DMG CHESTERFIELD            42.40N  72.85W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            WIRES DOWN ON EAST STREET

0414 PM     NON-TSTM WND DMG BUCKLAND                42.60N  72.78W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            WIRES DOWN ON LABELLE ROAD

0519 PM     NON-TSTM WND DMG WARWICK                 42.68N  72.33W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WENDELL ROAD

0539 PM     NON-TSTM WND DMG NORTHFIELD              42.71N  72.44W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WARWICK ROAD

0553 PM     NON-TSTM WND DMG NEWTON                  42.33N  71.21W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN BLOCKING COUNTRY CLUB ROAD

0554 PM     NON-TSTM WND DMG WEST SPRINGFIELD        42.12N  72.65W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SIKES AVE

0608 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SCHOOL AND MONROE STREET

0625 PM     NON-TSTM WND DMG AUBURN                  42.20N  71.83W
09/18/2012                   WORCESTER          MA   AMATEUR RADIO

            TRE DOWN ON MASS PIKE WESTBOUND NEAR EXIT 10

0631 PM     NON-TSTM WND DMG TOLLAND                 42.08N  73.02W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON RTE 57

0631 PM     NON-TSTM WND DMG GOSHEN                  42.43N  72.80W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON FULLER ROAD

0638 PM     NON-TSTM WND DMG PELHAM                  42.40N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HARKNESS ROAD

0639 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON ROWLEY STREET

0651 PM     NON-TSTM WND DMG HAVERHILL               42.78N  71.09W
09/18/2012                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON POWER LINES

0652 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   TRAINED SPOTTER

            TREE DOWN ON NORTH MAIN STREET

0652 PM     NON-TSTM WND DMG AMHERST                 42.38N  72.52W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON OLD FARM ROAD

0652 PM     NON-TSTM WND DMG CAMBRIDGE               42.38N  71.12W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            WIRES DOWN ON MARIE AVE

0658 PM     NON-TSTM WND DMG WESTWOOD                42.22N  71.22W
09/18/2012                   NORFOLK            MA   AMATEUR RADIO

            WIRES DOWN ON HILLCREST ROAD

0658 PM     NON-TSTM WND DMG BELCHERTOWN             42.27N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON RTE 9

0704 PM     NON-TSTM WND DMG GRANVILLE               42.07N  72.87W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON BEECH HILL ROAD

0716 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON LINCOLN AVE

0716 PM     NON-TSTM WND DMG CHARLEMONT              42.63N  72.88W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON MAXWELL ROAD

0724 PM     NON-TSTM WND DMG LEVERETT                42.45N  72.50W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            MULTIPLE TREES DOWN ON NORTH LEVERETT

0810 PM     NON-TSTM WND DMG BLANDFORD               42.18N  72.93W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            MULTIPLE LARGE TREES DOWN OVER HIGHER ELEVATIONS

&&

WAS
Local storm report, Sep 18, 7:54 PM EST, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
854 PM EDT TUE SEP 18 2012

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

0736 PM     NON-TSTM WND DMG BELMONT                 42.40N  71.17W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE AND POWER LINES DOWN ON CAR ON CENTRAL STREET

&&

WAS
Local storm report, Sep 18, 8:38 PM EST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
938 PM EDT TUE SEP 18 2012

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

0406 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON BRADFORD STREET ALSO TREE DOWN
            ON HOUSE ON FORT STREET

0414 PM     NON-TSTM WND DMG CHESTERFIELD            42.40N  72.85W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            WIRES DOWN ON EAST STREET

0414 PM     NON-TSTM WND DMG BUCKLAND                42.60N  72.78W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            WIRES DOWN ON LABELLE ROAD

0519 PM     NON-TSTM WND DMG WARWICK                 42.68N  72.33W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WENDELL ROAD

0539 PM     NON-TSTM WND DMG NORTHFIELD              42.71N  72.44W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WARWICK ROAD

0553 PM     NON-TSTM WND DMG NEWTON                  42.33N  71.21W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN BLOCKING COUNTRY CLUB ROAD

0554 PM     NON-TSTM WND DMG WEST SPRINGFIELD        42.12N  72.65W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SIKES AVE

0608 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SCHOOL AND MONROE STREET

0625 PM     NON-TSTM WND DMG AUBURN                  42.20N  71.83W
09/18/2012                   WORCESTER          MA   AMATEUR RADIO

            TRE DOWN ON MASS PIKE WESTBOUND NEAR EXIT 10

0631 PM     NON-TSTM WND DMG TOLLAND                 42.08N  73.02W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON RTE 57

0631 PM     NON-TSTM WND DMG GOSHEN                  42.43N  72.80W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON FULLER ROAD

0638 PM     NON-TSTM WND DMG PELHAM                  42.40N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HARKNESS ROAD

0639 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON ROWLEY STREET

0651 PM     NON-TSTM WND DMG HAVERHILL               42.78N  71.09W
09/18/2012                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON POWER LINES

0652 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   TRAINED SPOTTER

            TREE DOWN ON NORTH MAIN STREET

0652 PM     NON-TSTM WND DMG AMHERST                 42.38N  72.52W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON OLD FARM ROAD

0652 PM     NON-TSTM WND DMG CAMBRIDGE               42.38N  71.12W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            WIRES DOWN ON MARIE AVE

0658 PM     NON-TSTM WND DMG WESTWOOD                42.22N  71.22W
09/18/2012                   NORFOLK            MA   AMATEUR RADIO

            WIRES DOWN ON HILLCREST ROAD

0658 PM     NON-TSTM WND DMG BELCHERTOWN             42.27N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON RTE 9

0704 PM     NON-TSTM WND DMG GRANVILLE               42.07N  72.87W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON BEECH HILL ROAD

0716 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON LINCOLN AVE

0716 PM     NON-TSTM WND DMG CHARLEMONT              42.63N  72.88W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON MAXWELL ROAD

0724 PM     NON-TSTM WND DMG LEVERETT                42.45N  72.50W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            MULTIPLE TREES DOWN ON NORTH LEVERETT

0736 PM     NON-TSTM WND DMG BELMONT                 42.40N  71.17W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE AND POWER LINES DOWN ON CAR ON CENTRAL STREET

0754 PM     NON-TSTM WND DMG SOUTH DEERFIELD         42.48N  72.61W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            LARGE TREE DOWN ON GARAGE ON EASTERN AVE

0755 PM     NON-TSTM WND DMG GRANBY                  42.26N  72.53W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            SEVERAL TREES DOWN ON RTE 202 NEAR SOUTH HADLEY LINE

0756 PM     NON-TSTM WND DMG FITZWILLIAM             42.78N  72.15W
09/18/2012                   CHESHIRE           NH   AMATEUR RADIO

            TREE AND WIRES DOWN NEAR ROYALSTON MASS TOWN LINE

0810 PM     NON-TSTM WND DMG BLANDFORD               42.18N  72.93W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            MULTIPLE LARGE TREES DOWN OVER HIGHER ELEVATIONS

0830 PM     NON-TSTM WND GST WEST CUMMINGTON         42.49N  72.97W
09/18/2012  M64 MPH          HAMPSHIRE          MA   TRAINED SPOTTER

            2000 EL

&&

WAS

The radar

The Brookhaven radar (KOKX), 89 km away, was scanning. The volume nearest the first event began at 01:47 UTC.

Open the radar archive at this moment

Event by event

10 thunderstorm wind, 1 flood. Local standard time, as filed.

Flood, Hartford

When
September 18, 8:46 PM EST to 9:46 PM EST
Where
Hartford County, 0.84 mi WSW of New Britain to 1.01 mi WNW of New Britain
Cause
Heavy Rain
Reported by
Amateur Radio
Coordinates
41.665, -72.795

Street flooding occurred at the intersection of Clinton Street and Albany Avenue as well as at the intersection of Lincoln Street and West Main Street.

Thunderstorm Wind, Hartford

When
September 18, 8:51 PM EST
Where
Hartford County, Enfield
Measured
50 kt (58 mph) estimated gust
Property damage
$15,000
Reported by
Amateur Radio
Coordinates
41.970, -72.570

Multiple trees on Steele Road and Silver Lane were downed by thunderstorm winds.

Thunderstorm Wind, Hartford

When
September 18, 8:59 PM EST
Where
Hartford County, Manchester
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Amateur Radio
Coordinates
41.780, -72.520

Trees and wires on Oak Street and Purrell Place were downed by thunderstorm winds. A tree was downed onto a house on Scarborough Road. No damage to the house.

Thunderstorm Wind, Hartford

When
September 18, 9:09 PM EST
Where
Hartford County, 1.72 mi SW of Addison
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.700, -72.600

A tree on Hebron Avenue was downed by thunderstorm winds.

Thunderstorm Wind, Hartford

When
September 18, 9:15 PM EST
Where
Hartford County, South Windsor
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.820, -72.620

A tree on Miller Road was downed by thunderstorm winds.

Thunderstorm Wind, Tolland

When
September 18, 9:43 PM EST
Where
Tolland County, Tolland
Measured
50 kt (58 mph) estimated gust
Property damage
$10,000
Reported by
Amateur Radio
Coordinates
41.870, -72.370

Trees and wires were downed on Woodland Street and the intersection of Reed Road and Timber Trail.

Thunderstorm Wind, Tolland

When
September 18, 9:45 PM EST
Where
Tolland County, Herbron
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.650, -72.370

A tree was downed on Route 207 near the Lebanon town line.

Thunderstorm Wind, Tolland

When
September 18, 10:04 PM EST
Where
Tolland County, Coventry
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.780, -72.300

A tree and wires on High Street were downed by thunderstorm winds.

Thunderstorm Wind, Tolland

When
September 18, 10:10 PM EST
Where
Tolland County, Vernon
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.820, -72.480

A tree and wires on Bolton Road near Bamforth Road were downed by thunderstorm winds.

Thunderstorm Wind, Windham

When
September 18, 10:10 PM EST
Where
Windham County, Willimantic
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.720, -72.220

A tree and wires were downed by thunderstorm winds.

Thunderstorm Wind, Tolland

When
September 18, 10:14 PM EST
Where
Tolland County, Mansfield
Measured
50 kt (58 mph) estimated gust
Property damage
$5,000
Reported by
Amateur Radio
Coordinates
41.830, -72.250

A tree on Pleasant Valley Road was downed by thunderstorm winds.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Connecticut in 2012Every state in 2012This day in weather historyWarnings in Connecticut, September 2012

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 413489, 413490, 413491, 413492, 413493, 413494, 413495, 413496, 413497, 413499, 413498.