Alert archive / Massachusetts / Areal Flood Warnings in 2021

Areal Flood Warning 32, NWS Boston/Norton, MA

September 2, 2021Providence County, Rhode Island; 7 counties in Massachusetts

NWS Boston/Norton, MA issued this areal flood warning at Sep 2, 2021, 7:04 AM EDT for Providence County, Rhode Island; 7 counties in Massachusetts. It was in force for 11 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Sep 2, 2021, 7:04 AM EDT (11:04 UTC)
Expired: Sep 2, 2021, 6:21 PM EDT
In force: 11 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

Counties Bristol County, MA, Essex County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Worcester County, MA, Providence County, RI

The radar

The Boston radar (KBOX), 71 km from the middle of the area, began a volume at 11:03 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.

What was reported inside it

Time	Report	Where	Remark
Sep 2, 8:56 AM EDT	FLOOD	Waltham, MA	BROADCAST MEDIA PHOTO ON TWITTER OF SEVERAL UNOCCUPIED SCHOOL BUSES PARKED IN A PARKING LOT IN WALTHAM THAT ARE STUCK IN FLOODWATERS. FLOODWATERS UP TO THE WHEELBASE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Gray, ME (KGYX), launched 00:00Z, 11.1 hours before the alert went out and 157 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

640 
WGUS41 KBOX 021104
FLWBOX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Boston/Norton MA
704 AM EDT Thu Sep 2 2021

MAC005-009-017-021-023-025-027-RIC007-021700-
/O.NEW.KBOX.FA.W.0032.210902T1104Z-210902T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bristol MA-Essex MA-Middlesex MA-Norfolk MA-Plymouth MA-Suffolk MA-
Worcester MA-Providence RI-
704 AM EDT Thu Sep 2 2021

The National Weather Service in Norton has issued a

* Flood Warning for Urban area and small stream in...
  Southeastern Worcester County in central Massachusetts...
  Norfolk County in eastern Massachusetts...
  Suffolk County in eastern Massachusetts...
  Essex County in northeastern Massachusetts...
  Middlesex County in northeastern Massachusetts...
  Northwestern Bristol County in southeastern Massachusetts...
  Plymouth County in southeastern Massachusetts...
  Northeastern Providence County in Rhode Island...

* Until 100 PM EDT.

* At 704 AM EDT, Doppler radar indicated heavy rain fell across the 
  warning area overnight and early this morning. Flooding is already 
  occurring in the warned area. Between 2 and 4 inches of rain have 
  fallen.

* While the rain is exiting eastern Massachusetts, a considerable 
  amount of urban and poor drainage flooding remains. It may take 
  much of the morning for some of the urban flooding to recede. In 
  addition, some area streams and small rivers are still rising. 
  Flooding is likely along some of these waterways.

* Some locations that will experience flooding include...
  Boston, Lowell, Cambridge, Brockton, Quincy, Lynn, Newton, 
  Lawrence, Somerville, Pawtucket, Framingham, Haverhill, Waltham, 
  Malden, Brookline, Plymouth, Medford, Taunton, Weymouth and Revere.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 4274 7118 4281 7117 4281 7107 4286 7103
      4289 7093 4287 7082 4281 7081 4281 7083
      4280 7083 4283 7046 4227 7073 4197 7057
      4183 7089 4190 7148 4228 7168 4270 7154
      4270 7129

$$

NB

3 follow-up statements

706 
WGUS81 KBOX 021432
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
1032 AM EDT Thu Sep 2 2021

MAC005-009-017-021-023-025-027-RIC007-021700-
/O.CON.KBOX.FA.W.0032.000000T0000Z-210902T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bristol MA-Essex MA-Middlesex MA-Norfolk MA-Plymouth MA-Suffolk MA-
Worcester MA-Providence RI-
1032 AM EDT Thu Sep 2 2021

...THE URBAN AREA AND SMALL STREAM FLOOD WARNING REMAINS IN EFFECT 
UNTIL 1 PM EDT THIS AFTERNOON FOR SOUTHEASTERN WORCESTER, NORFOLK, 
SUFFOLK, ESSEX, MIDDLESEX, NORTHWESTERN BRISTOL, PLYMOUTH AND 
NORTHEASTERN PROVIDENCE COUNTIES...

At 1032 AM EDT, gauge reports indicated between 4 and 7 inches of 
rain had fallen across the warning area.

Some locations that will experience flooding include...
  Boston, Lowell, Cambridge, Brockton, Quincy, Lynn, Newton, 
  Lawrence, Somerville, Pawtucket, Framingham, Haverhill, Waltham, 
  Malden, Brookline, Plymouth, Medford, Taunton, Weymouth and Revere.

Considerable urban and poor drainage flooding may still take several 
hours to fully recede. Some area streams and small rivers had 
crested, while others were still rising. River and stream flooding 
remains likely in the warning area through early this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles. Continue to heed road closures. Stay away 
from river banks.

&&

LAT...LON 4274 7118 4281 7117 4281 7107 4286 7103
      4289 7093 4287 7082 4281 7081 4281 7083
      4280 7083 4283 7046 4227 7073 4197 7057
      4183 7089 4190 7148 4228 7168 4270 7154
      4270 7129

$$

NB

944 
WGUS41 KBOX 021641
FLWBOX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Boston/Norton MA
1241 PM EDT Thu Sep 2 2021

MAC005-009-017-021-023-025-027-RIC007-022230-
/O.EXT.KBOX.FA.W.0032.000000T0000Z-210902T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bristol MA-Essex MA-Middlesex MA-Norfolk MA-Plymouth MA-Suffolk MA-
Worcester MA-Providence RI-
1241 PM EDT Thu Sep 2 2021

The National Weather Service in Norton has extended the

* Flood Warning for Urban area and small stream in...
  Southeastern Worcester County in central Massachusetts...
  Norfolk County in eastern Massachusetts...
  Suffolk County in eastern Massachusetts...
  Essex County in northeastern Massachusetts...
  Middlesex County in northeastern Massachusetts...
  Northwestern Bristol County in southeastern Massachusetts...
  Plymouth County in southeastern Massachusetts...
  Northeastern Providence County in Rhode Island...

* Until 630 PM EDT.

* At 1241 PM EDT, gauge reports indicated between 4 and 7 inches of 
  rain fell across the warning area during last night into early 
  this morning.

* Some locations that will experience flooding include...
  Boston, Lowell, Cambridge, Brockton, Quincy, Lynn, Newton, 
  Lawrence, Somerville, Pawtucket, Framingham, Haverhill, Waltham, 
  Malden, Brookline, Plymouth, Medford, Taunton, Weymouth and Revere.

Some area rivers and streams are still rising, and as a result 
pockets of minor river flooding are likely during this afternoon. In 
addition, any lingering urban and poor drainage areas may take some 
more time to fully recede.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Keep children away from storm drains, culverts, creeks and streams. 
Water levels can rise rapidly and sweep children away.

&&

LAT...LON 4274 7118 4281 7117 4281 7107 4286 7103
      4289 7093 4287 7082 4281 7081 4281 7083
      4280 7083 4283 7046 4227 7073 4197 7057
      4183 7089 4190 7148 4228 7168 4270 7154
      4270 7129

$$

NB

525 
WGUS81 KBOX 022221
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
621 PM EDT Thu Sep 2 2021

MAC005-009-017-021-023-025-027-RIC007-022231-
/O.CAN.KBOX.FA.W.0032.000000T0000Z-210902T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bristol MA-Essex MA-Middlesex MA-Norfolk MA-Plymouth MA-Suffolk MA-
Worcester MA-Providence RI-
621 PM EDT Thu Sep 2 2021

...THE URBAN AND SMALL STREAM FLOOD WARNING FOR MUCH OF EASTERN 
MASSACHUSETTS AND NORTHEAST RHODE ISLAND WILL EXPIRE AT 630 PM...

Small streams continue to recede and flooding has eased in most 
urban areas. Flooding is no longer expected to pose a threat. 
However, please continue to heed remaining road closures.

LAT...LON 4274 7118 4281 7117 4281 7107 4286 7103
      4289 7093 4287 7082 4281 7081 4281 7083
      4280 7083 4283 7046 4227 7073 4197 7057
      4183 7089 4190 7148 4228 7168 4270 7154
      4270 7129

$$

JWD

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Sep 2, 4:55 AM EDT, 2 hours 9 minutes earlier.

Area forecast discussion, Sep 2, 4:55 AM EDT, 2 hours 9 minutes before

Area Forecast Discussion
National Weather Service Boston/Norton MA
455 AM EDT Thu Sep 2 2021

.SYNOPSIS...

Heavy rain tapers off early this morning and skies clear from
west to east as high pressure nudges in from Ontario. Gusty
winds are still possible across RI and eastern MA into late this
morning/early afternoon. Drier and cooler conditions arrive this
afternoon and linger into the beginning of the Labor Day
weekend, with a touch of fall Thu night into Sat. Then
temperatures moderate Sunday, Monday and Tuesday, along with a
low risk for a few showers from time to time, but not a washout.

&&

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

Highlights

* Heavy rain tapers off this morning, but gusty winds will
  persist across eastern areas into the early afternoon.

Heavy rain tapers off from west to east and should be over with
by roughly 7-8 AM. Dry, but breezy conditions are expected for
much of the day as low pressure lifts out and exits the region.
Still could have a period of damaging wind gusts this morning
into the early afternoon, especially where the Wind Advisory is
in effect given the saturated grounds and gusts up to 45 mph at
times. These winds will slacken as high pressure nudges in from
Ontario relaxing the pressure gradient. Leaned toward the HRRRE
guidance to handle the wind speeds/gusts.

Looks much more comfortable temperature and humidity wise across
southern New England today as high pressure nudges in. High
temperatures range from the upper 60s to low 70s with dew points
in the 50s to low 60s.

&&

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

No changes to the previous forecast, dry and much cooler behind
the exiting system. Lows in the 50s regionwide, with upper 40s
in northwest MA. Temperatures on Friday very similar to today
with readings in the upper 60s to mid 70s.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...

* Drier conditions behind the remnants of Ida to start the holiday
  weekend
* Warming trend through the weekend and early next week
* Unsettled pattern expected next week

Friday and Saturday

High pressure builds in behind the remnants of Ida on Friday bringing
sunny skies and early fall like conditions to southern New England.
Afternoon high temperatures likely to top out in the mid to upper
70s on these days.

Sunday through next week

As high pressure shifts east late this weekend return flow from the
south will support a warming trend through the middle of next week.
Global models are hinting at a more active jet-stream next week
supporting an unsettled pattern. Next frontal system and
precipitation event may be in the Sunday night through Monday time
frame as global models hint at an upper-level disturbance moving
across the northeast. Stay tuned for details.

&&

.AVIATION /09Z THURSDAY THROUGH MONDAY/...

Forecaster Confidence Levels.

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

Through 12Z...High confidence in trends, but moderate in timing.

IFR to LIFR conditions with moderate to heavy rainfall. Have put
in a thunderstorm mention across portions of CT, RI and SE MA.
Have tried to time things based on the latest radar observations
in combination with the HRRR guidance. Elsewhere IFR/LIFR with
rainfall, which may be heavy at times. Gusty NE winds to 25-40
kts for most areas. The exception is across Cape Cod and the
Islands where winds will shift to the S/SSW and gust up to 35-40
kts.

Today...High confidence in trends, but moderate in timing.

Precipitation gradually ending from west to east. Timing wise
still looking like 12Z-15Z. Conditions improving to MVFR by
mid/late AM and VFR by afternoon. As the system exits will have
N/NW winds with gusts of 25-35 kts.

Tonight...High confidence.

VFR with NW winds at 5-10 kts.

Friday..High confidence.

VFR with NW winds at 5-10 kts.

KBOS Terminal...Moderate confidence in TAF. TSRA S/SE of the
terminal until 12Z.

KBDL Terminal...High confidence in TAF.

Outlook /Friday Night through Monday/...

Friday Night through Saturday: VFR.

Saturday Night: Mainly VFR, with local MVFR possible. Chance
SHRA.

Sunday: Mainly MVFR, with local IFR possible. Chance SHRA.

Sunday Night: MVFR/IFR conditions possible. Chance SHRA.

Labor Day: VFR.

&&

.MARINE...

Forecaster Confidence Levels.

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

* Gale Warnings overnight into Thu

Tonight and Thursday...High Confidence. The remnant circulation of
Ida passing near the south coast overnight into Thursday will create
Gale force wind gusts and building seas across the waters overnight
into Thursday. Impressive 925 mb LLJ for this time of year should
allow for NNE wind gusts of 30 to 40 knots to develop after midnight
and shift to the N on Thu. Seas should build to between 7 and 11
feet. Gale Warnings are posted for most waters with Gale Watches
issued for Boston Harbor/Narragansett Bay. We also should mention a
few strong t-storms are possible overnight into early Thursday
morning near the south coast with the potential for a waterspout.

Outlook /Friday Night through Monday/...

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

Saturday through Saturday Night: Winds less than 25 kt.

Sunday through Sunday Night: Winds less than 25 kt. Seas up to
5 ft. Chance of rain showers.

Labor Day: Winds less than 25 kt. Seas up to 5 ft.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Flash Flood Watch until 2 PM EDT this afternoon for CTZ002>004.
MA...Flash Flood Watch until 2 PM EDT this afternoon for MAZ004>024-
     026.
     Wind Advisory until 1 PM EDT this afternoon for MAZ007-015-016-
     019-022.
RI...Flash Flood Watch until 2 PM EDT this afternoon for RIZ001>008.
MARINE...Gale Warning until 8 PM EDT this evening for ANZ231>235-237-
     250-251-254>256.
     Gale Watch through this afternoon for ANZ230-236.

&&

SYNOPSIS...Nocera/BL
NEAR TERM...BL
SHORT TERM...Nocera/BL
LONG TERM...RM
AVIATION...BL/KS
MARINE...Nocera/RM

Hazardous weather outlook, Sep 2, 4:33 AM EDT, 2 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
433 AM EDT Thu Sep 2 2021

CTZ002>004-MAZ004>006-008>014-026-030845-
Hartford CT-Tolland CT-Windham CT-Northern Worcester MA-
Central Middlesex MA-Western Essex MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-Western Norfolk MA-Southeast Middlesex MA-
Northern Middlesex MA-
433 AM EDT Thu Sep 2 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

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

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ002-003-030845-
Western Franklin MA-Eastern Franklin MA-
433 AM EDT Thu Sep 2 2021

This Hazardous Weather Outlook is for western Massachusetts.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ007-015-016-030845-
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
433 AM EDT Thu Sep 2 2021

...WIND ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...
...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

This Hazardous Weather Outlook is for eastern Massachusetts and
northeastern Massachusetts.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ017-018-020-021-023-024-RIZ001>008-030845-
Northern Bristol MA-Western Plymouth MA-Southern Bristol MA-
Southern Plymouth MA-Dukes MA-Nantucket MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
433 AM EDT Thu Sep 2 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...
...TORNADO WATCH 486 IN EFFECT UNTIL 7 AM EDT THIS MORNING...

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

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ019-022-030845-
Eastern Plymouth MA-Barnstable MA-
433 AM EDT Thu Sep 2 2021

...WIND ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...
...FLASH FLOOD WATCH IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...
...TORNADO WATCH 486 IN EFFECT UNTIL 7 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for southeastern Massachusetts.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Flash Flood Watch.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ231>235-237-254>256-030845-
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
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 AM EDT Thu Sep 2 2021

...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...TORNADO WATCH 486 IN EFFECT UNTIL 7 AM EDT THIS MORNING...

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

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Gale Warning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ250-251-030845-
Coastal waters east of Ipswich Bay and the Stellwagen Bank National
Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
433 AM EDT Thu Sep 2 2021

...GALE WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for Massachusetts coastal waters.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ236-030845-
Narragansett Bay-
433 AM EDT Thu Sep 2 2021

...GALE WATCH IN EFFECT THROUGH THIS AFTERNOON...
...TORNADO WATCH 486 IN EFFECT UNTIL 7 AM EDT THIS MORNING...

This Hazardous Weather Outlook is for Rhode Island coastal waters.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Watch.
   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230-030845-
Boston Harbor-
433 AM EDT Thu Sep 2 2021

...GALE WATCH IN EFFECT THROUGH THIS AFTERNOON...

This Hazardous Weather Outlook is for Massachusetts coastal waters.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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, Sep 2, 2:14 AM EDT, 4 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
214 AM EDT THU SEP 02 2021

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

0125 AM     TSTM WND DMG     DENNIS                  41.73N  70.20W
09/02/2021                   BARNSTABLE         MA   AMATEUR RADIO

            MULTIPLE TREES REPORTED DOWN ON ROUTE 6A.

0135 AM     FLOOD            MANCHESTER              41.78N  72.52W
09/02/2021                   HARTFORD           CT   AMATEUR RADIO

            PORTIONS OF EAST CENTER STREET FLOODED.

0150 AM     HEAVY RAIN       AVON                    41.81N  72.83W
09/02/2021  M5.42 INCH       HARTFORD           CT   TRAINED SPOTTER

0155 AM     FLOOD            BOURNE                  41.73N  70.61W
09/02/2021                   BARNSTABLE         MA   AMATEUR RADIO

            ROTARY FLOODED WITH 2 CARS STUCK IN FLOOD WATERS.

0155 AM     FLOOD            2 SSW WORCESTER         42.24N  71.82W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            CAMBRIDGE STREET BRIDGE IS FLOODED/IMPASSABLE AND
            CLOSED.

&&

EVENT NUMBER BOX2102982
EVENT NUMBER BOX2102983
EVENT NUMBER BOX2102984
EVENT NUMBER BOX2102985
EVENT NUMBER BOX2102986

BL

Local storm report, Sep 2, 3:09 AM EDT, 3 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
309 AM EDT THU SEP 02 2021

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

0208 AM     FLOOD            2 SSW SOUTHWICK         42.03N  72.79W
09/02/2021                   HAMPDEN            MA   AMATEUR RADIO

            ROADWAY FLOODED AND IMPASSABLE NEAR THE INTERSECTION OF
            US RTE 202 AND MA 168.

0210 AM     FLOOD            DUDLEY                  42.05N  71.93W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            WEST MAIN STREET FLOODED AND IMPASSABLE.

0210 AM     FLOOD            3 N GRANBY              42.00N  72.79W
09/02/2021                   HARTFORD           CT   AMATEUR RADIO

            COLLEGE HIGHWAY FLOODED NEAR ROUTE 202 IN SOUTHWICK,
            MA.

0211 AM     FLOOD            WORCESTER               42.27N  71.81W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            MERRICK STREET AT PELHAM STREET CLOSED DUE TO FLOODING.

0221 AM     FLOOD            1 WNW AYER              42.57N  71.60W
09/02/2021                   MIDDLESEX          MA   AMATEUR RADIO

            BISHOP ROAD CLOSED FROM FORT DEVENS TO MACPHERSON ROAD
            DUE TO FLOODING.

0222 AM     FLOOD            1 NE WINCHESTER         42.47N  71.13W
09/02/2021                   MIDDLESEX          MA   AMATEUR RADIO

            CROSS STREET AND CROSS STREET BRIDGE FLOODED. ROADWAY
            CLOSED.

0226 AM     HEAVY RAIN       NEW BEDFORD             41.66N  70.94W
09/02/2021  M5.20 INCH       BRISTOL            MA   AMATEUR RADIO

&&

EVENT NUMBER BOX2102987
EVENT NUMBER BOX2102988
EVENT NUMBER BOX2102989
EVENT NUMBER BOX2102990
EVENT NUMBER BOX2102991
EVENT NUMBER BOX2102992
EVENT NUMBER BOX2102993

BL

Local storm report, Sep 2, 3:34 AM EDT, 3 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
334 AM EDT THU SEP 02 2021

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

0230 AM     FLOOD            WORCESTER               42.27N  71.81W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            PARTS OF SOUTHBRIDGE STREET CLOSED DUE TO FLOODING
            ALONG WITH QUINSIGAMOND AVENUE.

0234 AM     FLOOD            1 NNE WEBSTER           42.06N  71.86W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            PART OF WORCESTER ROAD IS FLOODED AND IMPASSABLE.

0320 AM     FLOOD            FALL RIVER              41.71N  71.11W
09/02/2021                   BRISTOL            MA   AMATEUR RADIO

            24 NORTHBOUND RAMP ON I-195 FLOODED WITH TWO CARS STUCK
            IN THE FLOOD WATERS.

0322 AM     FLOOD            BOSTON                  42.32N  71.07W
09/02/2021                   SUFFOLK            MA   AMATEUR RADIO

            SECTION OF STORROW DRIVE EASTBOUND HAS 3-4 FT OF STREET
            FLOODING WITH A CAR STUCK.

&&

EVENT NUMBER BOX2102994
EVENT NUMBER BOX2102995
EVENT NUMBER BOX2102996
EVENT NUMBER BOX2102997

BL

Local storm report, Sep 2, 5:52 AM EDT, 1 hour 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
552 AM EDT THU SEP 02 2021

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

0244 AM     FLOOD            3 NNE MILLBURY          42.23N  71.75W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            SOUTHWEST CUTOFF AT GRAFTON STREET FLOODED AND
            IMPASSABLE. CAR STUCK IN THE STREET FLOODING.

0247 AM     FLOOD            2 SW FALL RIVER         41.70N  71.14W
09/02/2021                   BRISTOL            MA   AMATEUR RADIO

            BEDFORD STREET AT STINZIANO STREET FLOODED AND
            IMPASSABLE.

0304 AM     FLOOD            2 S MIDDLETOWN          41.52N  71.30W
09/02/2021                   NEWPORT            RI   AMATEUR RADIO

            WOOD ROAD FLOODED AND IMPASSABLE. A RESIDENTS BASEMENT
            IS ALSO FLOODED.

0309 AM     FLOOD            2 N WEBSTER             42.08N  71.87W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            ROUTE 12 AT TANNER ROAD FLOODED AND IMPASSABLE.

0318 AM     FLOOD            2 S WORCESTER           42.24N  71.81W
09/02/2021                   WORCESTER          MA   AMATEUR RADIO

            CAR STUCK IN FLOODED WATERS AT THE INTERSECTION OF
            CAMBRIDGE STREET AND KANSAS STREET.

0321 AM     FLOOD            1 SSE SOMERSET          41.72N  71.15W
09/02/2021                   BRISTOL            MA   AMATEUR RADIO

            COVE STREET FLOODED AND IMPASSABLE. CAR WAS STUCK IN
            THE FLOOD WATERS AND A PERSON NEEDED TO BE RESCUED.

0332 AM     FLOOD            TAUNTON                 41.91N  71.09W
09/02/2021                   BRISTOL            MA   AMATEUR RADIO

            CAR STUCK IN FLOOD WATERS ON WASHBURN STREET.

0334 AM     FLOOD            1 WNW DORCHESTER        42.29N  71.09W
09/02/2021                   SUFFOLK            MA   AMATEUR RADIO

            ROADWAY FLOODED AND IMPASSABLE AT MORTON STREET AT WEST
            MAIN STREET.

0401 AM     HEAVY RAIN       BURLINGTON              41.77N  72.96W
09/02/2021  M5.56 INCH       HARTFORD           CT   NONE

0435 AM     HEAVY RAIN       SOUTH WINDSOR           41.82N  72.62W
09/02/2021  M5.40 INCH       HARTFORD           CT   TRAINED SPOTTER

&&

EVENT NUMBER BOX2102998
EVENT NUMBER BOX2102999
EVENT NUMBER BOX2103000
EVENT NUMBER BOX2103001
EVENT NUMBER BOX2103002
EVENT NUMBER BOX2103003
EVENT NUMBER BOX2103004
EVENT NUMBER BOX2103005
EVENT NUMBER BOX2103006
EVENT NUMBER BOX2103007

BL

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 10:17 PM EDT	Flash Flood Warning	BOX	Bristol, Kent, Newport, Providence, Washington	9 hr
Sep 1, 10:32 PM EDT	Flash Flood Warning	BOX	Bristol, Newport, Providence	10 hr
Sep 2, 2:34 AM EDT	Flash Flood Warning Considerable damage threat	BOX	Bristol, Kent, Newport, Providence, Washington	6 hr
Sep 2, 5:10 AM EDT	River Flood Warning	BOX	Kent, Providence	18 hr
Sep 2, 7:43 AM EDT	Areal Flood Warning	BOX	Bristol, Kent, Newport, Providence, Washington	6 hr
Sep 2, 8:20 AM EDT	River Flood Warning	BOX	Washington	43 hr
Sep 2, 8:20 AM EDT	River Flood Warning	BOX	Providence	32 hr
Sep 2, 8:20 AM EDT	River Flood Warning	BOX	Washington	53 hr
Sep 2, 1:42 PM EDT	Areal Flood Warning	BOX	Bristol, Kent, Newport, Providence, Washington	6 hr
Sep 1, 9:13 PM EDT	Flash Flood Warning	BOX	Hampden	10 hr
Sep 1, 9:24 PM EDT	Special Marine Warning	BOX		66 min
Sep 1, 9:37 PM EDT	Flash Flood Warning	BOX	Worcester	10 hr
Sep 1, 10:01 PM EDT	Flash Flood Warning	BOX	Essex, Middlesex, Norfolk, Suffolk	8 hr
Sep 1, 10:45 PM EDT	Special Marine Warning	BOX		45 min
Sep 1, 10:57 PM EDT	Flash Flood Warning	BOX	Franklin, Hampshire, Middlesex, Worcester	8 hr
Sep 1, 11:02 PM EDT	Flash Flood Warning	BOX	Essex, Middlesex	8 hr
Sep 1, 11:21 PM EDT	Tornado Warning	BOX	Barnstable, Bristol, Dukes, Plymouth	54 min
Sep 1, 11:24 PM EDT	Special Marine Warning	BOX		66 min
Sep 1, 11:32 PM EDT	Special Marine Warning	BOX		58 min
Sep 1, 11:32 PM EDT	Special Marine Warning	BOX		58 min
Sep 1, 11:56 PM EDT	Tornado Warning	BOX	Barnstable, Dukes	49 min
Sep 2, 12:08 AM EDT	Flash Flood Warning	BOX	Barnstable, Dukes	8 hr
Sep 2, 12:20 AM EDT	Special Marine Warning	BOX		55 min
Sep 2, 12:22 AM EDT	Tornado Warning	BOX	Dukes	53 min
Sep 2, 12:25 AM EDT	Special Marine Warning	BOX		65 min
Sep 2, 12:45 AM EDT	Tornado Warning	BOX	Barnstable, Dukes	60 min
Sep 2, 1:07 AM EDT	Special Marine Warning	BOX		83 min
Sep 2, 1:15 AM EDT	Tornado Warning	BOX	Dukes	28 min
Sep 2, 1:51 AM EDT	River Flood Warning	BOX	Worcester	31 hr
Sep 2, 1:56 AM EDT	Tornado Warning	BOX	Barnstable	26 min
Sep 2, 3:42 AM EDT	River Flood Warning	BOX	Norfolk, Suffolk	11 hr
Sep 2, 5:14 AM EDT	Special Marine Warning	BOX		46 min
Sep 2, 5:26 AM EDT	Flash Flood Warning Considerable damage threat	BOX	Barnstable, Bristol, Dukes, Plymouth	3 hr
Sep 2, 5:30 AM EDT	River Flood Warning	BOX	Middlesex	22 hr
Sep 2, 5:49 AM EDT	Special Marine Warning	BOX		42 min
Sep 2, 6:02 AM EDT	Flash Flood Warning	BOX	Essex, Middlesex, Norfolk, Suffolk	3 hr
Sep 2, 6:14 AM EDT	Special Marine Warning	BOX		25 min
Sep 2, 6:50 AM EDT	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire, Middlesex, Worcester	6 hr
Sep 2, 7:25 AM EDT	Flash Flood Warning Considerable damage threat	BOX	Hampden, Hampshire, Worcester	6 hr
Sep 2, 7:54 AM EDT	Areal Flood Warning	BOX	Barnstable, Dukes, Plymouth	6 hr
Sep 2, 8:14 AM EDT	River Flood Warning	BOX	Hampden, Hampshire	13 hr
Sep 2, 8:20 AM EDT	River Flood Warning	BOX	Middlesex, Worcester	60 hr
Sep 2, 9:25 AM EDT	River Flood Warning	BOX	Bristol, Plymouth	64 hr
Sep 2, 10:40 AM EDT	Small Craft Advisory	BOX		17 hr
Sep 2, 12:51 PM EDT	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire, Middlesex, Norfolk, Worcester	6 hr
Sep 2, 1:28 PM EDT	Areal Flood Warning	BOX	Hampden	6 hr
Sep 2, 5:59 PM EDT	River Flood Warning	BOX	Essex, Middlesex	25 hr

Nearby

Areal Flood Warnings in Massachusetts, 2021 Areal Flood Warnings in Rhode Island, 2021 Every areal flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.