Severe Thunderstorm Warning 125, NWS Boston/Norton, MA

Area Forecast Discussion
National Weather Service Boston/Norton MA
208 PM EDT Mon Aug 24 2020

.SYNOPSIS...

Warm and humid conditions to continue through Tuesday.
Scattered thunderstorms are expected to develop again today, a
few of which may become strong to severe. Thunderstorms may be
more numerous on Tuesday ahead of a strong cold front, and those
may also become strong to severe. Dry, autumn feel across
southern New England on Wednesday. Unsettled pattern returns
late in the week and heading into the weekend with temperatures
trending upward.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

2 PM Update...

* Scattered strong-severe thunderstorms into early evening
  especially near and south of the MA Turnpike

Scattered strong to severe thunderstorms were beginning to
develop across southern New England. SPC Meso-Analysis is
indicating over 3000 J/KG of Cape across southern New England.
This partially a result of modest mid level lapse rates on the
order of 6 C/KM and even a bit higher. Despite marginal
effective shear of 25 knots, the amount of instability will be
enough to trigger scattered strong to severe thunderstorms
into early this evening.

The main threat will be localized damaging wind gusts given
DCape values on the order of 1000 J/KG. However, given modest
mid level lapse rates and a lot of instability the risk exists
for isolated reports of large hail. While the threat for
scattered strong to severe thunderstorms exists across the
entire region, areas near and south of the MA Turnpike have the
highest risk. This is where the best instability/forcing are
aligned.

Lastly, slow moving storms will be capable of producing heavy
rain and localized urban street flooding.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...

Tonight:

Any leftover storms should be weakening and/or moving offshore early
tonight. Should see improving conditions as we move into the
midnight/early-overnight hrs. While generally clear for the
interior, will again see development of patchy fog and/or low
stratus overnight towards the South Coast and the Cape. Lows in
the 60s.

Tuesday:

** Strong to severe thunderstorms capable of gusty winds and hail
possible Tuesday **

While there are some uncertainties and limiting factors, Tuesday
still continues to look quite active. The very warm and humid
conditions presently across Southern New England will continue to
exist ahead of a powerful cold front and related strong mid/upper
level trough to support a risk for strong to severe thunderstorms.
SPC has maintained 15%/Slight Risk severe probabilities for Tuesday,
these probabilities maintained from the earlier Day-3 and Day-4
outlooks.

On the cold front itself, guidance continues to vary on exact timing
of the frontal passage thru Southern New England. This will need
some refining, but at the moment we could be looking at a late-
morning to mid-afternoon frontal passage. Given the strength of the
flow aloft, the front should be hauling fairly quickly through our
area and that may limit how much we can destabilize before the front
arrives. Still, storms which form are expected to get a boost from
strong forcing tied to the digging shortwave trough. With effective-
layer wind shear values around 40-45 kt and most-unstable CAPE
values conservatively around 1500-2000 J/kg, this is an environment
that supports severe weather in the form of gusty/damaging winds and
hail. While straight hodographs and shear values support organized
multicells and splitting-supercell types, the strength of the front
may make it difficult for storms to stay cellular long enough with a
favored linear mode. Though guidance varies on placement of frontal
storms, consistency in SPC's convective forecasts and the
instability/shear and forcing make a compelling argument to include
gusty winds and small hail in the forecast. Stay tuned!

Will again see temperatures rise into the mid to upper 80s on
Tuesday, only slightly cooler than prior days. Will also have
westerly breezes pre-frontal, with a sharp wind shift to northwest
arriving late in the day.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...

Highlights

* Will feel like autumn on Wednesday as a Canadian high nudges into
  the region.

* Appears unsettled late in the week and heading into the weekend.
  May see drier weather return by Sunday.

Tuesday night through Wednesday night...

Upper trough slides offshore Tuesday night into early Wednesday,
while a ridge builds from Manitoba into northern Ontario. The ridge
will keep building into northern Ontario through Wednesday. At the
surface a cold front will be offshore. Behind the front, a Canadian
high will nudge into the region from Ontario/James Bay.

Any leftover showers and thunderstorms will be winding down with the
front offshore. Skies will clear fairly quickly Tuesday evening into
early Wednesday, so could have strong radiational cooling across the
region with plummeting dew points. Have nudged low temperatures
toward the 25th percentile of guidance. Have kept from going cooler
as winds may stay up due to the tight pressure gradient across the
region from the departing front and high nudging in. Lows falling
into the upper 40s across far northwest MA and in the 50s elsewhere.

Will remain breezy across southern New England on Wednesday with the
tightened pressure gradient in place. Will be a big change from the
past couple of days with an autumn like feel and very comfortable
with dew points in the 40s to low 50s. Aloft will see 4 to 8 degree
Celsius cold air advection. This results in high temperatures in the
lower to middle 70s across the region. There may perhaps be a few
upper 70 degree readings across the CT River Valley being aided by
W/WNW downsloping at 925 hPa.

Wednesday night through Sunday...

Confidence in the forecast significantly diminishes during this
timeframe. The majority of Wednesday night into Thursday morning
will be dry, but there are hints that a decaying thunderstorm
complex slides southeastward into southern New England or the Mid
Atlantic for Thursday from the central Great Lakes. Given that this
is 48+ hours out and outside the window of CAMs (this complex would
have origins in the Upper Mississippi River Valley), have kept a
blended model approach. This keeps southern New England under slight
chance to chances of precipitation. Will need to see how things
evolve upstream in future updates, but there is a few hundred J/kg
of MUCAPE in place along with 45-50+ kts of 0-6 km shear.

Do expect temperatures and dew points to rise as flow becomes more W
to WSW aloft. Will be slightly warmer with readings in the mid to
upper 70s. Should still be comfortable with dew points in the 50s,
though southern portions of the region may creep into the lower 60s.

Lots of spread amongst guidance from Thursday through Saturday as
the remnants of Laura get pulled into the upper flow late in the
week. This may interact with a trough digging into the Great Lakes,
but there are timing and amplitude differences in the strength of
the trough. As stated earlier, appears that it will remain unsettled
with rain chances Friday and Saturday. May see a ridge build into
Ontario on Sunday and provide drier weather.

&&

.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

18Z Update...

This Afternoon...Moderate confidence.

Scattered SHRA/TSRA will continue into early this evening with
areal coverage the greatest near and south of the MA Turnpike.
So while VFR conditions dominate, localized pockets of IFR-LIFR
conditions possible in any strong thunderstorms. Localized
strong wind gusts possible too. Low clouds/fog should mainly be
confined to ACK and parts of the Cape.

Tonight...Moderate confidence.

Scattered SHRA/TSRA should be winding down towards 00z, but can
not rule out a bit of activity lingering an hour or two longer.
Otherwise, VFR much of the evening but patchy ground fog may
develop late in the typically prone locations. Low clouds should
be confined to ACK and perhaps near the south coast and Cape
Cod. Light SW winds.

Tuesday...Moderate confidence.

Patchy ground fog should burnoff by mid morning, yielding mainly
VFR conditions. The main concern will be Tuesday afternoon and
evening with the potential for a few strong thunderstorms. Some
uncertainty on areal coverage, but a few may result in strong
wind gusts.

Tuesday night...High confidence.

Any left over convection should wind down early in the evening.
Otherwise, VFR with NW winds of 5 to 15 knots with some 20 to 25
knot gusts expected across portions of the coastal plain.

KBOS Terminal...Moderate confidence in TAF. Main concern is the
threat for scattered thunderstorms in the vicinity of the
terminal until about 00z.

KBDL Terminal...Moderate confidence in TAF. Main concern is the
threat for scattered thunderstorms in the vicinity of the
terminal until about 00z.

Outlook /Tuesday Night through Friday/...

Wednesday: VFR. Breezy.

Wednesday Night: Mainly VFR, with local MVFR possible.

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

Thursday Night: Mainly VFR, with areas MVFR possible. Slight
chance SHRA, slight chance TSRA.

Friday: Mainly MVFR, with areas VFR possible. Chance SHRA.

&&

.MARINE...
730 AM Update...

Fog and stratus will linger across the ocean waters through
today and into tonight. Some locations may see the fog/stratus
burn off, but think overall most areas will remain socked in per
high res guidance.

Previous discussion...

Winds and seas on the waters to be below small craft advisory
thresholds. Gusts under 20 kt today from the SW with seas under 3'.
On Tuesday, strengthening low-level winds ahead of a strong cold
front could support borderline SCA gusts on the southern waters with
seas in the 3 to 4' range.

Areas of fog to dissipate over the waters early this morning, though
another round of fog/stratus is anticipated again tonight. Fog may
be locally dense at times. Thunderstorms, some strong, may threaten
the waters today but a better potential is on Tuesday.

Looking ahead, we may need to consider marine headlines into
Wednesday due to strong NW winds behind the cold front.

Outlook /Tuesday Night through Friday/...

Tuesday Night: Winds less than 25 kt. Seas up to 5 ft.

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

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

Thursday Night: Winds less than 25 kt. Chance of rain showers,
slight chance of thunderstorms.

Friday: Winds less than 25 kt. Chance of rain showers.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.

&&

SYNOPSIS...BL/Loconto
NEAR TERM...Frank
SHORT TERM...Loconto
LONG TERM...BL
AVIATION...Frank/BL
MARINE...BL/Loconto

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
422 AM EDT Mon Aug 24 2020

CTZ002>004-MAZ002>016-026-RIZ001-002-008-250830-
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 Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Block Island RI-
423 AM EDT Mon Aug 24 2020

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts, eastern Massachusetts, northeastern Massachusetts,
western Massachusetts, northern Rhode Island and southern Rhode
Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-250830-
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-
423 AM EDT Mon Aug 24 2020

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ017>024-RIZ003>007-250830-
Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-
423 AM EDT Mon Aug 24 2020

This Hazardous Weather Outlook is for southeastern Massachusetts,
northern Rhode Island and southern Rhode Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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/us.nationalweatherservice.boston.gov

You can follow us on Twitter at
@NWSBoston

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
140 PM EDT MON AUG 24 2020

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

0120 PM     TSTM WND DMG     WINDSOR                 41.85N  72.65W
08/23/2020                   HARTFORD           CT   AMATEUR RADIO

            SMALL TREE BRANCHESS DOWN WIHT A POWER OUTAGE IN THE
            AREA OF ROUTE 305 AND I-91.

0256 PM     TSTM WND DMG     ORANGE                  42.59N  72.30W
08/23/2020                   FRANKLIN           MA   LAW ENFORCEMENT

            TREES DOWN ON NORTH ORANGE RD, WEST ORANGE RD, WHEELER
            AVE AND NORTH MAIN ST. DAMAGE BEGAN AT 256PM AND
            CONTINUED THROUGH 315PM.

0326 PM     TSTM WND DMG     ORANGE                  42.59N  72.30W
08/23/2020                   FRANKLIN           MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON EAST RIVER ST, EAST MAIN ST AND
            BROOKSIDE RD

0331 PM     TSTM WND DMG     ATHOL                   42.59N  72.23W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON HOUSE ON ROOSEVELT AVE

0335 PM     TSTM WND DMG     ORANGE                  42.59N  72.30W
08/23/2020                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON HILLCREST RD AND DANIEL SHAYS
            HWY.

0336 PM     TSTM WND DMG     ORANGE                  42.59N  72.30W
08/23/2020                   FRANKLIN           MA   AMATEUR RADIO

            TREE DOWN BLOCKING ROAD ON ROGERS AVE

0340 PM     TSTM WND DMG     ATHOL                   42.59N  72.23W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            LARGE TREE DOWN BLOCKING ROAD ON ORCHARD HILL RD, TREE
            DOWN ON WIRES ON BROOKSIDE RD

0343 PM     TSTM WND DMG     FITCHBURG               42.59N  71.82W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON HOUSE AT BRIGHAM PARK

0345 PM     TSTM WND DMG     LUNENBURG               42.59N  71.73W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON CARS ON COVE RD

0345 PM     TSTM WND DMG     FITCHBURG               42.59N  71.82W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREES AND POLES DOWN ON ASHBY STATE RD

0346 PM     TSTM WND DMG     LEOMINSTER              42.52N  71.77W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN BLOCKING ROAD ON 7TH ST

0346 PM     TSTM WND DMG     SHIRLEY                 42.54N  71.65W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            MULTIPLE TREES DOWN ON WIRES ON CENTER RD

0346 PM     TSTM WND DMG     SHIRLEY                 42.54N  71.65W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN BLOCKING ROAD ON KIMBALL ST

0346 PM     TSTM WND DMG     SHIRLEY                 42.54N  71.65W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            LARGE TREES DOWN ON TOWNSEND RD

0352 PM     TSTM WND DMG     AYER                    42.56N  71.59W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON JONATHAN DR AND GROTON SCHOOL
            RD

0410 PM     TSTM WND DMG     CONCORD                 42.45N  71.35W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN ON COLLEGE RD

0412 PM     TSTM WND DMG     MIDDLETON               42.60N  71.02W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON HOUSE AND BLOCKING ROAD ON OAK RD

0420 PM     TSTM WND DMG     TOPSFIELD               42.64N  70.96W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON HAVERHILL RD AND RTE 97 AT
            IPSWICH RD

0420 PM     TSTM WND DMG     TOPSFIELD               42.64N  70.96W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ACROSS ROAD ON ROWLEY RD

0420 PM     TSTM WND DMG     TOPSFIELD               42.64N  70.96W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON WILMOR RD

0424 PM     TSTM WND DMG     NORTH ANDOVER           42.70N  71.12W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON CAR AND BLOCKING ROAD ON WOODSTOCK RD.

0445 PM     HAIL             WAKEFIELD               42.50N  71.07W
08/23/2020  M1.00 INCH       MIDDLESEX          MA   AMATEUR RADIO

0445 PM     TSTM WND DMG     WAKEFIELD               42.50N  71.07W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREES DOWN ON AVON AVE, GREEN ST. TREE DOWN ON HOUSE ON
            MAIN ST AT LAKE

0445 PM     TSTM WND DMG     STONEHAM                42.47N  71.10W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN ON CAR ON FRANKLIN ST

0450 PM     TSTM WND DMG     WAKEFIELD               42.50N  71.07W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN ON COMMUTER RAIL TRAIN TRACKS CAUSING DELAYS.

0450 PM     TSTM WND DMG     WAKEFIELD               42.50N  71.07W
08/23/2020                   MIDDLESEX          MA   PUBLIC

            MYRTLE AVE BLOCKED BY 5 LARGE TREES - 4" DIAMETER

0455 PM     HAIL             LYNN                    42.47N  70.96W
08/23/2020  M0.75 INCH       ESSEX              MA   AMATEUR RADIO

0456 PM     TSTM WND DMG     BARRE                   42.42N  72.11W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            LARGE TREE DOWN ON LORING ROAD IN THE AREA OF SOUTH ST.
            TREE DOWN ON ROOT ROAD AT SOUTH ST. TREE AND WIRES DOWN
            ON CLEM COURT. TREE AND WIRES DOWN ON CHURCH ST. TREE
            AND WIRES DOWN ON ADAMS ST. TREE DOWN ACROSS RAILROAD
            TRACKS AT THE SOUTH BARRE RAILWAY TRAIN STATION.

0500 PM     HAIL             BOSTON                  42.32N  71.07W
08/23/2020  M0.75 INCH       SUFFOLK            MA   AMATEUR RADIO

            HYDE PARK SECTION OF BOSTON

0505 PM     HAIL             AUBURN                  42.20N  71.83W
08/23/2020  M0.75 INCH       WORCESTER          MA   TRAINED SPOTTER

0505 PM     TSTM WND DMG     SAUGUS                  42.47N  71.02W
08/23/2020                   ESSEX              MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HOBSON ST

0505 PM     TSTM WND DMG     OAKHAM                  42.35N  72.05W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ACROSS ROAD AND A DRIVEWAY ON
            SPENCER RD.

0506 PM     TSTM WND DMG     MALDEN                  42.43N  71.06W
08/23/2020                   MIDDLESEX          MA   TRAINED SPOTTER

            TREE DOWN ON RTE 99 JUST BEFORE US RTE 1

0515 PM     TSTM WND DMG     RUTLAND                 42.36N  71.95W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE AND WIRES DOWN IN THE ROAD ON BARRE-PAXTON RD.

0518 PM     TSTM WND GST     WORCESTER AP            42.27N  71.87W
08/23/2020  M62 MPH          WORCESTER          MA   PUBLIC

0518 PM     NON-TSTM WND GST WORCESTER AP            42.27N  71.87W
08/23/2020  M62 MPH          WORCESTER          MA   ASOS

0520 PM     TSTM WND DMG     WESTBOROUGH             42.27N  71.62W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON FISHER ST AT OTIS ST

0525 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN,WENT THROUGH A TRAILER IN MARTYS TRAILER PARK
            ON SOUTHWEST CUTOFF. NO INJURIES.

0525 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            3-4 FT OF STREET FLOODING, POSSIBLY FROM CLOGGED
            DRAINAGE ON PLEASANT ST

0525 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            3 FT OF FLOODING AT MILLERS PARK

0530 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON BRIGHTWOOD AVE

0530 PM     FLOOD            WESTBOROUGH             42.27N  71.62W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            MILE ST BRIDGE AT RTE 9 AND EAST MAIN ST FLOODED AND
            IMPASSABLE.

0535 PM     TSTM WND DMG     WESTBOROUGH             42.27N  71.62W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREES DOWN ON WIRES ON CAROLYN DRIVE, LINDA ST AND
            HASKELL ST

0540 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON EDGEWORTH ST

0540 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TELEPHONE POLE SNAPPED DUE TO TREE COMING DOWN ON LINES
            ON AYLESBURY RD.

0540 PM     TSTM WND DMG     WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            WIRES DOWN ON MOWER ST, BRIGHTWOOD AVE AND MAIN ST

0541 PM     HAIL             WORCESTER               42.27N  71.81W
08/23/2020  M1.00 INCH       WORCESTER          MA   AMATEUR RADIO

0541 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            WASHINGTON SQUARE FLOODED TO UNKNOWN DEPTH.

0544 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            CAR STUCK IN FLOODING ON RTE 126 OFF-RAMP TO I-290.

0545 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            FRANKLIN ST TRAIN BRIDGE IMPASSABLE DUE TO FLOODING

0546 PM     TSTM WND GST     NORWOOD AP              42.18N  71.17W
08/23/2020  M59 MPH          NORFOLK            MA   ASOS

0546 PM     TSTM WND GST     BLUE HILL COOP          42.21N  71.11W
08/23/2020  M60 MPH          NORFOLK            MA   CO-OP OBSERVER

0547 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            CATCH BASINS OVERFLOWED RESULTING IN FLOODING INTO
            RESIDENCE ON OUTLOOK DRIVE

0551 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            VEHICLE DROVE INTO FLOOD WATERS AND GOT STUCK ON DEWEY
            ST. STREET IMPASSABLE.

0559 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            CAR FILLED WITH WATER, PERSON TRAPPED DUE TO FLOODING
            ON WEBSTER ST

0559 PM     FLOOD            WORCESTER               42.27N  71.81W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            GRAFTON ST CLOSED FROM DANA ST TO WARNER AVE DUE TO
            FLOODING.

0600 PM     TSTM WND DMG     CANTON                  42.15N  71.13W
08/23/2020                   NORFOLK            MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON LAWRENCE ST AND FULLER ST.

0600 PM     TSTM WND DMG     WESTWOOD                42.22N  71.22W
08/23/2020                   NORFOLK            MA   AMATEUR RADIO

            LARGE TREE AND WIRES DOWN ON HAWKTREE DRIVE AND
            MAGALETTA DRIVE.

0600 PM     TSTM WND DMG     WESTWOOD                42.22N  71.22W
08/23/2020                   NORFOLK            MA   AMATEUR RADIO

            MULTIPLE TREES AND WIRES DOWN ON STRASSER AVE AND
            FEARING DRIVE.

0600 PM     TSTM WND DMG     MILLBURY                42.19N  71.76W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON CRISTO LANE BLOCKING ROAD.

0600 PM     TSTM WND DMG     LEICESTER               42.25N  71.90W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HENSHAW ST AT SOUTH MAIN ST. TREE
            DOWN ON POWERLINES ON WHITE BIRCH ST. TREE DOWN ON
            MARSHALL ST. TREE DOWN ON GREENVILLE CIRCLE.

0610 PM     FLOOD            WESTWOOD                42.22N  71.22W
08/23/2020                   NORFOLK            MA   AMATEUR RADIO

            YALE ST AT UNIVERSITY AVE FLOODED AND IMPASSABLE

0610 PM     TSTM WND DMG     HOLLISTON               42.20N  71.43W
08/23/2020                   MIDDLESEX          MA   AMATEUR RADIO

            HIGH VOLTAGE POWER LINE DOWN ON PEARL ST. TREE AND
            WIRES DOWN ON HOLY LANE. TREE DOWN BLOCKING ROAD ON
            SOUTH ST/FISHER ST.

0630 PM     FLOOD            CANTON                  42.15N  71.13W
08/23/2020                   NORFOLK            MA   AMATEUR RADIO

            CAR STUCK IN FLOODING ON BOLIVAR ST

0630 PM     TSTM WND DMG     EASTON                  42.03N  71.10W
08/23/2020                   BRISTOL            MA   AMATEUR RADIO

            TREE DOWN ACROSS THE ROAD ON HIGHLAND STREET. TREE DOWN
            ON WIRES ON DEPOT ST.

0653 PM     HAIL             NEW BRAINTREE           42.32N  72.13W
08/23/2020  M0.75 INCH       WORCESTER          MA   AMATEUR RADIO

0653 PM     FLOOD            WEST BROOKFIELD         42.24N  72.15W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            SHEA RD FROM BIRCH HILL RD TO WICKBOAG RD CLOSED DUE TO
            FLOODING.

0655 PM     TSTM WND DMG     WARREN                  42.22N  72.19W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON MILLER DRIVE. TREE DOWN ON RTE
            67 NEAR WEST BROOKFIELD LINE BLOCKING ROAD.

0657 PM     FLOOD            WEST BROOKFIELD         42.24N  72.15W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            SNOW RD AT RTE 9 CLOSED DUE TO FLOODING.

0704 PM     TSTM WND DMG     BELCHERTOWN             42.27N  72.40W
08/23/2020                   HAMPSHIRE          MA   AMATEUR RADIO

            POWER LINES DOWN BLOCKING ROAD ON ALDRICH DRIVE.

0705 PM     TSTM WND DMG     WEST BROOKFIELD         42.24N  72.15W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE ON HOUSE AND CAR ON NEW BRAINTREE RD

0705 PM     LIGHTNING        NEW BRAINTREE           42.32N  72.13W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING. SMOKE IN BUILDING.

0705 PM     TSTM WND DMG     WEST BROOKFIELD         42.24N  72.15W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE FELL ON ROOF OF HOUSE ON EAST MAIN ST WITH NO
            INJURIES. TREE DOWN ON WIRES ON MYRICK RD.

0710 PM     HAIL             BELCHERTOWN             42.27N  72.40W
08/23/2020  M0.75 INCH       HAMPSHIRE          MA   AMATEUR RADIO

0710 PM     TSTM WND DMG     WEST BROOKFIELD         42.24N  72.15W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            MULTIPLE TREES AND WIRES DOWN ON RAGGED HILL ROAD.

0710 PM     TSTM WND DMG     BELCHERTOWN             42.27N  72.40W
08/23/2020                   HAMPSHIRE          MA   AMATEUR RADIO

            LARGE TREE DOWN ON POWER LINES ON WARNER ST. MULTIPLE
            TREES AND WIRES DOWN ON EAST ST FROM SWIFT RIVER
            WILDLIFE TO COLD SPRING RD.

0730 PM     TSTM WND DMG     WARE                    42.25N  72.25W
08/23/2020                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON BEAVER RD

0730 PM     TSTM WND DMG     WARE                    42.25N  72.25W
08/23/2020                   HAMPSHIRE          MA   AMATEUR RADIO

            TREES AND WIRES DOWN ON BELCHERTOWN RD.

0739 PM     TSTM WND DMG     PALMER                  42.16N  72.32W
08/23/2020                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN BLOCKING ROAD ON STATE ST.

0810 PM     TSTM WND DMG     SOUTHBRIDGE             42.08N  72.03W
08/23/2020                   WORCESTER          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON BIRCH HILL RD.

0832 PM     LIGHTNING        SPRINGFIELD             42.12N  72.54W
08/23/2020                   HAMPDEN            MA   AMATEUR RADIO

            HOUSE FIRE DUE TO LIGHTNING ON WHITE ST

0845 PM     FLOOD            SPRINGFIELD             42.12N  72.54W
08/23/2020                   HAMPDEN            MA   AMATEUR RADIO

            CAR STUCK IN FLOODING ON STATE ST.

&&

EVENT NUMBER BOX2002005 BOX2001924 BOX2001925 BOX2001926 BOX2001927
BOX2001928 BOX2001929 BOX2001930 BOX2001931 BOX2001932 BOX2001933
BOX2001965 BOX2001966 BOX2001967 BOX2001934 BOX2001935 BOX2001936
BOX2001937 BOX2001938 BOX2001939 BOX2001996 BOX2001940 BOX2001941
BOX2001995 BOX2001957 BOX2001998 BOX2001942 BOX2002002 BOX2001970
BOX2001943 BOX2001958 BOX2002003 BOX2001944 BOX2002004 BOX2001945
BOX2001947 BOX2001971 BOX2001948 BOX2001949 BOX2001950 BOX2001972
BOX2001973 BOX2001974 BOX2001951 BOX2001959 BOX2001975 BOX2001952
BOX2001953 BOX2001954 BOX2001955 BOX2001946 BOX2001997 BOX2001956
BOX2001960 BOX2001961 BOX2001962 BOX2001963 BOX2001964 BOX2001968
BOX2001976 BOX2002001 BOX2001969 BOX2002000 BOX2001977 BOX2001999
BOX2001978 BOX2001979 BOX2001980 BOX2001981 BOX2001982 BOX2001983
BOX2001984 BOX2001985 BOX2001986 BOX2001987 BOX2001988 BOX2001989
BOX2001990 BOX2001991 BOX2001992 BOX2001993 BOX2001994

Megnia

Special Weather Statement
National Weather Service Boston/Norton MA
153 PM EDT Mon Aug 24 2020

CTZ002-003-241830-
Hartford CT-Tolland CT-
153 PM EDT Mon Aug 24 2020

...STRONG THUNDERSTORM...

At 153 PM EDT, Doppler radar was tracking a strong thunderstorm over
East Hampton, moving east at 5 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Hebron, Marlborough and Columbia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4168 7230 4169 7227 4167 7227 4164 7233
      4161 7233 4160 7234 4160 7238 4159 7239
      4160 7241 4159 7242 4158 7246 4165 7251
TIME...MOT...LOC 1753Z 272DEG 5KT 4158 7247

BW

Special Weather Statement
National Weather Service Boston/Norton MA
200 PM EDT Mon Aug 24 2020

CTZ002-003-241845-
Hartford CT-Tolland CT-
200 PM EDT Mon Aug 24 2020

...STRONG THUNDERSTORM IN HARTFORD COUNTY...

At 159 PM EDT, Doppler radar was tracking a strong thunderstorm over
Windsor Locks, or near Windsor, moving east at 5 mph.

Pea size hail and winds in excess of 40 mph will accompany this
storm.

Locations impacted include...
Manchester, Enfield, Vernon, Windsor, South Windsor, Suffield,
Ellington, Windsor Locks, Somers, East Windsor and Bolton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4187 7270 4196 7269 4197 7243 4178 7247
TIME...MOT...LOC 1759Z 280DEG 6KT 4191 7263

BW

Special Weather Statement
National Weather Service Boston/Norton MA
206 PM EDT Mon Aug 24 2020

CTZ002-003-MAZ011-241845-
Hartford CT-Tolland CT-Eastern Hampden MA-
206 PM EDT Mon Aug 24 2020

...STRONG THUNDERSTORM...

At 206 PM EDT, Doppler radar was tracking a strong thunderstorm over
Longmeadow, or over Agawam, moving east at 10 mph.

Pea size hail and winds in excess of 40 mph will accompany this
storm.

Locations impacted include...
Springfield, Chicopee, Enfield, Agawam, West Springfield, Ludlow,
Longmeadow, Suffield, East Longmeadow, Ellington, Wilbraham, Palmer,
Somers, East Windsor, Monson and Hampden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4199 7272 4216 7268 4216 7236 4190 7243
TIME...MOT...LOC 1806Z 280DEG 5KT 4207 7261

BW

Special Weather Statement
National Weather Service Boston/Norton MA
227 PM EDT Mon Aug 24 2020

RIZ003-004-006-007-241915-
Washington RI-Western Kent RI-Eastern Kent RI-Newport RI-
227 PM EDT Mon Aug 24 2020

...STRONG THUNDERSTORM OVER SOUTHERN RHODE ISLAND...

At 226 PM EDT, Doppler radar was tracking a strong thunderstorm over
Exeter, or 7 miles west of North Kingstown, moving east at 5 mph.

Penny size hail and winds in excess of 40 mph will accompany this
storm.

Locations impacted include...
Warwick, Coventry, South Kingstown, West Warwick, North Kingstown,
Narragansett, East Greenwich, Richmond, Exeter, West Greenwich,
Jamestown and Prudence Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

Frequent lightning was occurring. Lightning can strike far away from
the storm. Go inside a building or vehicle. Wait at least 30 minutes
until after the storm has passed to resume outdoor activities.

&&

LAT...LON 4154 7169 4168 7163 4165 7135 4166 7135
      4163 7132 4162 7141 4162 7133 4161 7133
      4158 7145 4153 7141 4157 7137 4157 7136
      4149 7138 4152 7141 4151 7142 4146 7139
      4144 7144
TIME...MOT...LOC 1826Z 287DEG 6KT 4159 7159

Chai

Special Weather Statement
National Weather Service Boston/Norton MA
233 PM EDT Mon Aug 24 2020

CTZ002-003-241915-
Hartford CT-Tolland CT-
233 PM EDT Mon Aug 24 2020

...STRONG THUNDERSTORM IN SOUTHERN HARTFORD AND TOLLAND COUNTIES...

At 232 PM EDT, Doppler radar was tracking a strong thunderstorm over
Marlborough, or near Glastonbury, moving east at 15 mph.

Penny size hail and winds in excess of 40 mph will accompany this
storm.

Locations impacted include...
Glastonbury, Wethersfield, Rocky Hill, Hebron, Marlborough, Columbia
and Andover.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Get indoors when this storm approaches. Winds may be strong enough to
produce minor damage, such as a few downed branches.

&&

LAT...LON 4170 7263 4172 7224 4169 7227 4167 7227
      4164 7233 4161 7233 4160 7238 4159 7239
      4160 7241 4159 7242 4158 7246 4165 7251
      4163 7261 4164 7265
TIME...MOT...LOC 1832Z 280DEG 11KT 4165 7247

BW