Alert archive / Massachusetts / Special Weather Statements in 2021

Special Weather Statement, NWS Boston/Norton, MA

July 18, 2021Hampden County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jul 18, 2021, 5:49 PM EDT for Hampden County, Massachusetts. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 18, 2021, 5:49 PM EDT (21:49 UTC)
Expired
Jul 18, 2021, 6:45 PM EDT
In force
56 min
Issued by
NWS Boston/Norton, MA

County Hampden County, MA

The radar

The Boston radar (KBOX), 118 km from the middle of the area, began a volume at 21:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.8 hours before the alert went out and 128 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
522 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

642 
WWUS81 KBOX 182149
SPSBOX

Special Weather Statement
National Weather Service Boston/Norton MA
549 PM EDT Sun Jul 18 2021
 
CTZ002-003-MAZ009-011-182245-
Hartford CT-Tolland CT-Western Hampden MA-Eastern Hampden MA-
549 PM EDT Sun Jul 18 2021

...LINE OF HEAVY SHOWERS MOVING NORTHWARD TOWARD THE SPRINGFIELD 
AREA...

At 546 PM EDT, Doppler radar was tracking heavy showers with a few 
claps of thunder along a line extending from near Somers to near 
Windsor. Movement was north at 10 mph. Torrential downpours may 
cause localized street flooding.

Locations impacted include...
Springfield, Enfield, Windsor, Agawam, West Springfield, Simsbury,
Bloomfield, Longmeadow, Suffield, East Longmeadow, Ellington,
Wilbraham, Windsor Locks, Somers, Granby, East Windsor, Southwick,
East Granby, Hampden and Granville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move indoors when these storms approach. Do not attempt to drive 
through flooded waters. 

&&

LAT...LON 4215 7238 4205 7286 4185 7278 4193 7242
TIME...MOT...LOC 2146Z 167DEG 7KT 4196 7245 4189 7271 

$$
Field

What forecasters said that day

The local office's own words before this special weather statement went out, 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 this special weather statement went out at Jul 18, 3:38 PM EDT, 2 hours 11 minutes earlier.

Area forecast discussion, Jul 18, 3:38 PM EDT, 2 hours 11 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
338 PM EDT Sun Jul 18 2021

.SYNOPSIS...
An upper level disturbance from the west will move across New
England Monday. This will result in a continued risk of showers
and a few thunderstorms. Heat and humidity briefly moves back in
Tuesday followed by increasing risk of showers and thunderstorms
Wednesday as a cold front approaches. Mainly dry and cooler
Thursday, then unsettled weather pattern returns Friday into
next weekend.

&&

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

Showers continue to develop and lift NE across SNE. SB
instability confined to areas south of the Pike but elevated
instability extends further N and expect a few heavy showers and
t-storms to develop through the afternoon. Some drying aloft as
noted by lower KI values are punching into CT and will lift
across RI and SE MA through the afternoon which limit convection
here. Expect greatest coverage of showers and t-storms and axis
of heaviest rainfall through the afternoon to set up from near
the Mass Pike in central and western MA. PWATs are decreasing
from the west but still 1.5 to 1.7 inches in western New Eng so
localized rainfall amounts of 1-2 inches possible with any
persistent heavy showers or t-storms.

During tonight, mid level trough approaches with deeper
moisture axis moving in from the west. While instability is
limited, increasing forcing develops from right entrance region
of the upper jet so risk of showers and an isolated t-storm will
continue tonight. The focus will be across central/W MA closer
to best moisture and forcing. Otherwise, expect lots of stratus
redeveloping along with patchy fog.

Surface front expected to push south to the coast tonight. Lows
will range through the 60s, but close to 70 along the immediate
south coast, Cape and Islands.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH 6 PM MONDAY/...

Mid level trough moves over New Eng during Mon. Temps aloft are
not particularly cold with 500 mb temps around -10 to -11C so
instability will be marginal as lots of cloud cover and cooler
surface temps expected behind the departing front. A few showers
are expected to develop as the trough moves through, and
possibly an isolated t-storm, but lack of instability will limit
heavy rain potential.

Cooler day with cloud cover and pocket of 14-16C air at 925 mb
resulting in highs generally in the low/mid 70s, but it could
be cooler across portions of central/NE MA. Moderate humidity
levels with dewpoints still in the mid 60s.

&&

.LONG TERM /MONDAY NIGHT THROUGH SUNDAY/...
Highlights...

* Warmer on Tuesday with next round of widespread showers and
  thunderstorms on Wednesday, some of which could be strong to
  severe.
* Thursday looks to be the pick of the week with best chance for dry
  weather and seasonable temperatures.
* Multiple frontal passages mean more bouts of showers and
  thunderstorms heading into the weekend.

The National Blend of Model (NBM) guidance looks reasonable so no
significant changes to the extended forecast. Brief H5 ridging along
with 850mb temperatures +15 to +17C along with downsloping westerly
flow should allow highs to reach the upper 80s to low 90s. An
approaching cold front along with an amplifying H5 trough will lead
to increasing chances and coverage of showers and thunderstorms on
Wednesday. With SBCAPE around 1500 to 2000 J/kg and decent mid-level
lapse rates (perhaps a remnant EML?) of between 6.5 to 7.5C/km,
there is potential for some stronger to isolated severe storms
although the bulk shear and helicity looks unimpressive so the main
threat would probably be wet microburst and locally damaging winds.
In addition, with PWATs between 1.5 to 1.75 inches or around 90th
percentile according to SPC sounding climatology for Chatham, MA,
any of the showers could produce locally heavy rainfall and lead to
localized urban and poor drainage flooding.

Once the cold front moves through late Wednesday and with high
pressure building in from the Great Lakes, Thursday could turn out
to be pick of the week for outdoor activities with mainly dry and
cooler weather. By Friday, -15 to -16C H5 cold pool (10th percentile
according to (10th percentile according to SPC sounding climatology)
moves overhead, leading to increasing chances for some instability
showers with peak diurnal heating. 850mb temperatures fall to around
+10C so temperatures should be a few degrees below normal in the
70s. Typical highs for this time of the year are in the low to mid
80s. This is in line with CPC's 6-10 outlook that shows good
confidence of below normal temperatures.

Forecast confidence drops off heading into the weekend. It looks
like there may be brief ridging before the next shortwave trough
digs in from the Great Lakes later into the weekend. While the
weekend looks unsettled, it would not be a complete washout either
so stay tuned to the latest forecast if you have outdoor plans.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Forecaster Confidence Levels.

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Through Tonight...
Widespread IFR/LIFR along and north of the Mass Pike with MVFR
to the south. Lower conditions with IFR/LIFR will spread south
across rest of region from late afternoon into tonight.
Scattered showers and t-storms developing through the afternoon
and this evening with greatest coverage in central/W MA into N
CT. Additional showers possible overnight.

Monday...
IFR/LIFR improving to MVFR/VFR in the afternoon. Continued risk
of showers and a few t-storms, but less risk for heavy rain.

KBOS TAF...Moderate confidence in TAF.

KBDL TAF...Moderate confidence in TAF.

Outlook /Monday Night through Friday/...

Monday Night: VFR.

Tuesday: Mainly VFR, with local MVFR possible.

Tuesday Night: Mainly VFR, with local MVFR possible. Slight
chance SHRA, isolated TSRA.

Wednesday: Mainly MVFR, with areas VFR possible. Chance SHRA,
slight chance TSRA.

Wednesday Night: Mainly VFR, with local MVFR possible.

Thursday: VFR.

Thursday Night through Friday: Mainly VFR, with areas MVFR
possible. Slight chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels.

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

High confidence through Monday.

Winds and seas remain below SCA. S/SW winds up to 20 kt over
south coastal waters will eventually shift to NW on Mon. Areas
of fog will limit vsbys at times tonight into Mon morning.

/Outlook /Monday Night through Friday/...

Monday Night: Winds less than 25 kt. Seas locally approaching
5 ft.

Tuesday: Winds less than 25 kt.

Tuesday Night: Winds less than 25 kt. Slight chance of rain
showers, isolated thunderstorms.

Wednesday: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers, slight chance of thunderstorms.

Wednesday Night: Winds less than 25 kt. Seas locally
approaching 5 ft. Slight chance of rain showers.

Thursday: Winds less than 25 kt. Seas locally approaching 5 ft.

Thursday Night: Winds less than 25 kt. Slight chance of rain
showers.

Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain showers.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Flash Flood Watch until 11 PM EDT this evening for CTZ002>004.
MA...Flash Flood Watch until 11 PM EDT this evening for MAZ002>004-
     008>012.
RI...Flash Flood Watch until 11 PM EDT this evening for RIZ001-002.
MARINE...None.

&&

SYNOPSIS...KJC/Chai
NEAR TERM...KJC
SHORT TERM...KJC
LONG TERM...Chai
AVIATION...KJC/Chai
MARINE...KJC/Chai
Hazardous weather outlook, Jul 18, 4:33 PM EDT, 1 hour 16 minutes before
Hazardous Weather Outlook
National Weather Service Boston/Norton MA
433 PM EDT Sun Jul 18 2021

MAZ005>007-013>024-026-RIZ001>008-192045-
Central Middlesex MA-Western Essex MA-Eastern Essex 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-
Barnstable MA-Dukes MA-Nantucket MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
433 PM EDT Sun Jul 18 2021

This Hazardous Weather Outlook is for eastern Massachusetts,
northeastern Massachusetts, southeastern Massachusetts, and Rhode
Island.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

CTZ002>004-MAZ002>004-008>012-192045-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-
433 PM EDT Sun Jul 18 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 11 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts and western Massachusetts.

.DAY ONE...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...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-192045-
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-
433 PM EDT Sun Jul 18 2021

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

For more information on upcoming hazardous weather, please see the
Area Forecast Discussion on our webpage for the latest forecast
thinking. There is also our Enhanced Hazardous Weather Outlook at
www.weather.gov/box/ehwo

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/nwsboston

You can follow us on Twitter at
@NWSBoston

In the hours before

Local storm report, Jul 18, 1:32 PM EDT, 4 hours 17 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
132 PM EDT SUN JUL 18 2021

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

0306 PM     HAIL             CUMBERLAND              41.97N  71.46W
07/17/2021  M0.75 INCH       PROVIDENCE         RI   PUBLIC

0343 PM     FLOOD            LINCOLN                 41.92N  71.47W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            HOLIDAY COURT AND HOLIDAY DRIVE FLOODED AND IMPASSABLE

0355 PM     TSTM WND DMG     POMFRET                 41.90N  71.97W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON ANDERSON ROAD AND HAMLET HILL
            ROAD

0420 PM     TSTM WND DMG     WILLINGTON              41.87N  72.27W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON PINNEY HILL ROAD

0427 PM     TSTM WND DMG     AUBURN                  42.20N  71.83W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            UTILLITY POLE AND WIRES DOWN ON ROCK AVE

0429 PM     TSTM WND DMG     SOUTHWICK               42.05N  72.77W
07/17/2021                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON FRED JACKSON ROAD

0456 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON HAVELOCK ROAD

0500 PM     TSTM WND DMG     MANSFIELD               41.83N  72.25W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON CODFISH FALLS ROAD

0513 PM     TSTM WND DMG     CLINTON                 42.42N  71.69W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            POWER LINES DOWN ON BEACON STREET AND ON RTE 110. ALSO
            POWER LINES DOWN ON CALIFORNIA COURT AT BECON STREET

0515 PM     HAIL             CLINTON                 42.42N  71.69W
07/17/2021  M1.00 INCH       WORCESTER          MA   AMATEUR RADIO

0515 PM     FLOOD            MANSFIELD               41.83N  72.25W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            SECTION OF RTE 44 CLOSED DUE TO FLOODING

0515 PM     TSTM WND DMG     CLINTON                 42.42N  71.69W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON A CAR ON PARKER STREET.

0521 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            CARS STUCK IN FLOOD WATERS ON MILBURYROAD AND MCKEON
            ROAD

0522 PM     HAIL             BERLIN                  42.38N  71.63W
07/17/2021  M1.25 INCH       WORCESTER          MA   AMATEUR RADIO

0524 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            WATER UP TO CAR WINDSHIELDS ON DALE STREET

0531 PM     FLASH FLOOD      EASTFORD                41.90N  72.08W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            SECTION OF PILFERSHIRE ROAD WASHED OUT

0605 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            5 CARS STUCK IN FLOOD WATERS ON DEWEY STREET AND PARKER
            STREET

0607 PM     FLOOD            EASTFORD                41.90N  72.08W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            SECTION OF OLD COLONY ROAD FLOODED AND IMPASSABLE

0611 PM     TSTM WND DMG     SEEKONK                 41.82N  71.33W
07/17/2021                   BRISTOL            MA   TRAINED SPOTTER

            TREE DOWN ON ARCADE AVE NEAR VALLEY STREET

0624 PM     FLOOD            PROVIDENCE              41.82N  71.42W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            EDDY STREET BETWEEN NEBRASKA STREET AND PAVILLION AVE
            FLOODED AND IMPASSABLE

0630 PM     FLOOD            PROVIDENCE              41.82N  71.42W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            FALLON AVE FLOODED AND IMPASSABLE

0643 PM     FLASH FLOOD      ASHFORD                 41.87N  72.12W
07/17/2021                   WINDHAM            CT   FIRE DEPT/RESCUE

            BRIDGE WASHED OUT ON CUSHMAN ROAD

0730 PM     FLASH FLOOD      POMFRET                 41.90N  71.97W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            PARTIAL ROAD WASHOUT ON A SETION OF RTE 244

0955 PM     FLOOD            DEERFIELD               42.55N  72.60W
07/17/2021                   FRANKLIN           MA   AMATEUR RADIO

            RTE 5 AND RTE 10 AT RICHAARDSONS CANDY FLOODED IN BOTH
            DIRECTIONS

0326 AM     FLOOD            LUDLOW                  42.17N  72.48W
07/18/2021                   HAMPDEN            MA   AMATEUR RADIO

            AREA OF 631 CENTER STREET ROAD IS FLOODED AND
            IMPASSABLE.

0328 AM     FLOOD            ERVING                  42.60N  72.40W
07/18/2021                   FRANKLIN           MA   AMATEUR RADIO

            FLOODED BASEMENT AT 21 PLEASANT STREET.

0335 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            A BEAVER DAM BROKE CAUSING 421 TO 461 EAST STREET TO
            FLOOD WITH WATER GOING INTO HOMES WITH PEOPLE BEING
            EVACUATED.

0418 AM     FLOOD            WARREN                  42.22N  72.19W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            CHAPEL STREET FLOODED AND IMPASSABLE.

0446 AM     FLOOD            LEICESTER               42.25N  71.90W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            ROUTE 56 AT MARSHALL STREET FLOODED WITH DEBRIS IN THE
            ROADWAY.

0450 AM     FLOOD            WORCESTER               42.27N  71.81W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            AT 7 CARDINAL ROAD BASEMENT FLOODED WITH 5 INCHES OF
            WATER AND RISING.

0451 AM     FLOOD            WARE                    42.25N  72.25W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            CAREY STREET FLOODED AND IMPASSABLE.

0454 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            507 COLD SPRING ROAD A FRLOODED BASEMENT.

0458 AM     FLOOD            LANCASTER               42.45N  71.67W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            FLOODED BASEMENTS AT 2343 NORTH MAIN STREET AND AT 257
            BRIDGE ROAD.

0502 AM     FLOOD            CHESTER                 42.28N  72.98W
07/18/2021                   HAMPDEN            MA   AMATEUR RADIO

            SECTION OF SKYLINE TRAIL WASHED OUT CLOSING THE RAOD.

0510 AM     FLOOD            WARREN                  42.22N  72.19W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            AREA OF 1300 MAIN STREET FLOODED AND IMPASSABLE. WARE
            ROAD AT MAIN STREET ALSO FLOODED AND IMPASSABLE.

0533 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            RIVER ROAD FLOODED AND IMPASSABLE WITH PEOPLE BEING
            EVACUATED.

0610 AM     FLOOD            COHASSET                42.23N  70.80W
07/18/2021                   NORFOLK            MA   AMATEUR RADIO

            373 NORTH MAIN STREET BACK YARD FLOODED AND
            APPORAOCHING GARAGE.

0643 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            AREA ON 532 TO 631 FRANKLIN STREET FLOOED AND
            IMPASSABLE.

0654 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            134 RIVER STREET FLOODED AND IMPASSABLE IN THE AREA OF
            THE SWIFT RIVER.

0940 AM     FLOOD            MONTAGUE                42.53N  72.53W
07/18/2021                   FRANKLIN           MA   AMATEUR RADIO

            SEVERAL STREETS CLOSED DUE TO FLOODING IN THE MILLERS
            FALLS SECTION OF MONTAGUE.

&&

EVENT NUMBER BOX2102692 BOX2102693 BOX2102694 BOX2102695 BOX2102696
BOX2102697 BOX2102698 BOX2102699 BOX2102703 BOX2102700 BOX2102704
BOX2102715 BOX2102701 BOX2102705 BOX2102706 BOX2102707 BOX2102708
BOX2102711 BOX2102709 BOX2102712 BOX2102713 BOX2102710 BOX2102714
BOX2102716 BOX2102717 BOX2102718 BOX2102719 BOX2102720 BOX2102721
BOX2102722 BOX2102723 BOX2102724 BOX2102725 BOX2102726 BOX2102727
BOX2102728 BOX2102729 BOX2102730 BOX2102731 BOX2102732

AED
Local storm report, Jul 18, 2:27 PM EDT, 3 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
227 PM EDT SUN JUL 18 2021

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

0306 PM     HAIL             CUMBERLAND              41.97N  71.46W
07/17/2021  M0.75 INCH       PROVIDENCE         RI   PUBLIC

0343 PM     FLOOD            LINCOLN                 41.92N  71.47W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            HOLIDAY COURT AND HOLIDAY DRIVE FLOODED AND IMPASSABLE

0355 PM     TSTM WND DMG     POMFRET                 41.90N  71.97W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON ANDERSON ROAD AND HAMLET HILL
            ROAD

0420 PM     TSTM WND DMG     WILLINGTON              41.87N  72.27W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON PINNEY HILL ROAD

0427 PM     TSTM WND DMG     AUBURN                  42.20N  71.83W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            UTILLITY POLE AND WIRES DOWN ON ROCK AVE

0429 PM     TSTM WND DMG     SOUTHWICK               42.05N  72.77W
07/17/2021                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON FRED JACKSON ROAD

0456 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON HAVELOCK ROAD

0500 PM     TSTM WND DMG     MANSFIELD               41.83N  72.25W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            TREES AND WIRES DOWN ON CODFISH FALLS ROAD

0513 PM     TSTM WND DMG     CLINTON                 42.42N  71.69W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            POWER LINES DOWN ON BEACON STREET AND ON RTE 110. ALSO
            POWER LINES DOWN ON CALIFORNIA COURT AT BECON STREET

0515 PM     HAIL             CLINTON                 42.42N  71.69W
07/17/2021  M1.00 INCH       WORCESTER          MA   AMATEUR RADIO

0515 PM     FLOOD            MANSFIELD               41.83N  72.25W
07/17/2021                   TOLLAND            CT   AMATEUR RADIO

            SECTION OF RTE 44 CLOSED DUE TO FLOODING

0515 PM     TSTM WND DMG     CLINTON                 42.42N  71.69W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON A CAR ON PARKER STREET.

0521 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            CARS STUCK IN FLOOD WATERS ON MILBURYROAD AND MCKEON
            ROAD

0522 PM     HAIL             BERLIN                  42.38N  71.63W
07/17/2021  M1.25 INCH       WORCESTER          MA   AMATEUR RADIO

0524 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            WATER UP TO CAR WINDSHIELDS ON DALE STREET

0531 PM     FLASH FLOOD      EASTFORD                41.90N  72.08W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            SECTION OF PILFERSHIRE ROAD WASHED OUT

0605 PM     FLOOD            WORCESTER               42.27N  71.81W
07/17/2021                   WORCESTER          MA   AMATEUR RADIO

            5 CARS STUCK IN FLOOD WATERS ON DEWEY STREET AND PARKER
            STREET

0607 PM     FLOOD            EASTFORD                41.90N  72.08W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            SECTION OF OLD COLONY ROAD FLOODED AND IMPASSABLE

0611 PM     TSTM WND DMG     SEEKONK                 41.82N  71.33W
07/17/2021                   BRISTOL            MA   TRAINED SPOTTER

            TREE DOWN ON ARCADE AVE NEAR VALLEY STREET

0624 PM     FLOOD            PROVIDENCE              41.82N  71.42W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            EDDY STREET BETWEEN NEBRASKA STREET AND PAVILLION AVE
            FLOODED AND IMPASSABLE

0630 PM     FLOOD            PROVIDENCE              41.82N  71.42W
07/17/2021                   PROVIDENCE         RI   AMATEUR RADIO

            FALLON AVE FLOODED AND IMPASSABLE

0643 PM     FLASH FLOOD      ASHFORD                 41.87N  72.12W
07/17/2021                   WINDHAM            CT   FIRE DEPT/RESCUE

            BRIDGE WASHED OUT ON CUSHMAN ROAD

0730 PM     FLASH FLOOD      POMFRET                 41.90N  71.97W
07/17/2021                   WINDHAM            CT   AMATEUR RADIO

            PARTIAL ROAD WASHOUT ON A SETION OF RTE 244

0955 PM     FLOOD            DEERFIELD               42.55N  72.60W
07/17/2021                   FRANKLIN           MA   AMATEUR RADIO

            RTE 5 AND RTE 10 AT RICHAARDSONS CANDY FLOODED IN BOTH
            DIRECTIONS

0326 AM     FLOOD            LUDLOW                  42.17N  72.48W
07/18/2021                   HAMPDEN            MA   AMATEUR RADIO

            AREA OF 631 CENTER STREET ROAD IS FLOODED AND
            IMPASSABLE.

0328 AM     FLOOD            ERVING                  42.60N  72.40W
07/18/2021                   FRANKLIN           MA   AMATEUR RADIO

            FLOODED BASEMENT AT 21 PLEASANT STREET.

0335 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            A BEAVER DAM BROKE CAUSING 421 TO 461 EAST STREET TO
            FLOOD WITH WATER GOING INTO HOMES WITH PEOPLE BEING
            EVACUATED AND ROAD WASHOUT. REPORT CONFIRMED BY FIRE
            DEPARTMENT.

0418 AM     FLOOD            WARREN                  42.22N  72.19W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            CHAPEL STREET FLOODED AND IMPASSABLE.

0446 AM     FLOOD            LEICESTER               42.25N  71.90W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            ROUTE 56 AT MARSHALL STREET FLOODED WITH DEBRIS IN THE
            ROADWAY.

0450 AM     FLOOD            WORCESTER               42.27N  71.81W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            AT 7 CARDINAL ROAD BASEMENT FLOODED WITH 5 INCHES OF
            WATER AND RISING.

0451 AM     FLOOD            WARE                    42.25N  72.25W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            CAREY STREET FLOODED AND IMPASSABLE.

0454 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            507 COLD SPRING ROAD A FRLOODED BASEMENT.

0458 AM     FLOOD            LANCASTER               42.45N  71.67W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            FLOODED BASEMENTS AT 2343 NORTH MAIN STREET AND AT 257
            BRIDGE ROAD.

0502 AM     FLOOD            CHESTER                 42.28N  72.98W
07/18/2021                   HAMPDEN            MA   AMATEUR RADIO

            SECTION OF SKYLINE TRAIL WASHED OUT CLOSING THE RAOD.

0510 AM     FLOOD            WARREN                  42.22N  72.19W
07/18/2021                   WORCESTER          MA   AMATEUR RADIO

            AREA OF 1300 MAIN STREET FLOODED AND IMPASSABLE. WARE
            ROAD AT MAIN STREET ALSO FLOODED AND IMPASSABLE.

0533 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            RIVER ROAD FLOODED AND IMPASSABLE WITH PEOPLE BEING
            EVACUATED.

0610 AM     FLOOD            COHASSET                42.23N  70.80W
07/18/2021                   NORFOLK            MA   AMATEUR RADIO

            373 NORTH MAIN STREET BACK YARD FLOODED AND
            APPORAOCHING GARAGE.

0643 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            AREA ON 532 TO 631 FRANKLIN STREET FLOODED AND
            IMPASSABLE.

0654 AM     FLOOD            BELCHERTOWN             42.27N  72.40W
07/18/2021                   HAMPSHIRE          MA   AMATEUR RADIO

            134 RIVER STREET FLOODED AND IMPASSABLE IN THE AREA OF
            THE SWIFT RIVER.

0940 AM     FLOOD            MONTAGUE                42.53N  72.53W
07/18/2021                   FRANKLIN           MA   AMATEUR RADIO

            SEVERAL STREETS CLOSED DUE TO FLOODING IN THE MILLERS
            FALLS SECTION OF MONTAGUE.

&&

EVENT NUMBER BOX2102692 BOX2102693 BOX2102694 BOX2102695 BOX2102696
BOX2102697 BOX2102698 BOX2102699 BOX2102703 BOX2102700 BOX2102704
BOX2102715 BOX2102701 BOX2102705 BOX2102706 BOX2102707 BOX2102708
BOX2102711 BOX2102709 BOX2102712 BOX2102713 BOX2102710 BOX2102714
BOX2102716 BOX2102717 BOX2102718 BOX2102719 BOX2102720 BOX2102721
BOX2102722 BOX2102723 BOX2102724 BOX2102725 BOX2102726 BOX2102727
BOX2102728 BOX2102729 BOX2102730 BOX2102731 BOX2102732

AED
Special weather statement, Jul 18, 5:49 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
549 PM EDT Sun Jul 18 2021

CTZ002-003-MAZ009-011-182245-
Hartford CT-Tolland CT-Western Hampden MA-Eastern Hampden MA-
549 PM EDT Sun Jul 18 2021

...LINE OF HEAVY SHOWERS MOVING NORTHWARD TOWARD THE SPRINGFIELD
AREA...

At 546 PM EDT, Doppler radar was tracking heavy showers with a few
claps of thunder along a line extending from near Somers to near
Windsor. Movement was north at 10 mph. Torrential downpours may
cause localized street flooding.

Locations impacted include...
Springfield, Enfield, Windsor, Agawam, West Springfield, Simsbury,
Bloomfield, Longmeadow, Suffield, East Longmeadow, Ellington,
Wilbraham, Windsor Locks, Somers, Granby, East Windsor, Southwick,
East Granby, Hampden and Granville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move indoors when these storms approach. Do not attempt to drive
through flooded waters.

&&

LAT...LON 4215 7238 4205 7286 4185 7278 4193 7242
TIME...MOT...LOC 2146Z 167DEG 7KT 4196 7245 4189 7271

Field

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 9:54 PM EDTSpecial Weather StatementBOXHampden, Hampshire51 min
Jul 17, 10:38 PM EDTSpecial Weather StatementBOXFranklin, Hampshire52 min
Jul 17, 11:37 PM EDTSpecial Weather StatementBOXWorcester38 min
Jul 18, 2:48 AM EDTAreal Flood WarningBOXHampden, Hampshire, Worcester105 min
Jul 18, 2:59 AM EDTSpecial Weather StatementBOXWorcester61 min
Jul 18, 3:54 AM EDTSpecial Weather StatementBOXWorcester51 min
Jul 18, 6:17 AM EDTAreal Flood WarningBOXFranklin3 hr
Jul 18, 6:22 AM EDTAreal Flood WarningBOXHampden, Hampshire, Worcester5 hr
Jul 18, 12:19 PM EDTAreal Flood WarningBOXHampden, Hampshire, Worcester21 hr
Jul 18, 1:40 PM EDTAreal Flood WarningBOXWorcester6 hr
Jul 18, 6:36 PM EDTSpecial Weather StatementBOXHampshire54 min
Jul 18, 7:11 PM EDTFlash Flood WarningBOXHampden, Hampshire3 hr
Jul 17, 10:09 PM EDTAreal Flood WarningBOXNortheastern Connecticut Planning Region6 hr
Jul 18, 1:39 AM EDTAreal Flood WarningBOXCapitol Planning Region2 hr
Jul 18, 1:53 AM EDTSpecial Weather StatementBOX67 min
Jul 18, 2:22 AM EDTSpecial Weather StatementBOX53 min
Jul 18, 9:33 AM EDTAreal Flood WarningBOXCapitol Planning Region5 hr

Nearby

Special Weather Statements in Massachusetts, 2021Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.