Alert archive / Massachusetts / Flash Flood Warnings in 2023
Flash Flood Warning 18, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 10, 2023, 4:24 PM EDT for Worcester County, Massachusetts. It was in force for 3 hr. 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 10, 2023, 4:24 PM EDT (20:24 UTC)
- Expired
- Jul 10, 2023, 6:55 PM EDT
- In force
- 3 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Worcester County, MA
The radar
The Boston radar (KBOX), 54 km from the middle of the area, began a volume at 20:26 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.4 hours before the alert went out and 186 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.
- Mixed-layer CAPE
- 820 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.7
The text
As transmitted.
043
WGUS51 KBOX 102024
FFWBOX
MAC027-102330-
/O.NEW.KBOX.FF.W.0018.230710T2024Z-230710T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Boston/Norton MA
424 PM EDT Mon Jul 10 2023
The National Weather Service in Norton has issued a
* Flash Flood Warning for...
Southeastern Worcester County in central Massachusetts...
* Until 730 PM EDT.
* At 424 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 1 to 3 inches in 1
hour. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Worcester, Marlborough, Shrewsbury, Westborough, Grafton, Holden,
Auburn, Hopkinton, Northborough, Oxford, Millbury, Charlton,
Leicester, Sutton, Rutland, West Boylston, Upton, Paxton, Boylston
and Berlin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 4219 7157 4218 7157 4215 7191 4235 7195
4236 7161 4235 7162 4234 7160 4233 7160
4232 7159 4226 7158 4226 7159 4222 7160
4220 7158
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR
$$
TD/BL2 follow-up statements
717
WGUS71 KBOX 102156
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
556 PM EDT Mon Jul 10 2023
MAC027-102330-
/O.CON.KBOX.FF.W.0018.000000T0000Z-230710T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Worcester MA-
556 PM EDT Mon Jul 10 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT THIS
EVENING FOR SOUTHEASTERN WORCESTER COUNTY...
At 556 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 1.5 and 3 inches of rain have
fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour.
Flooding was reported at 4:43 PM 2 NNW of Rutland, MA on Route 56 at
Vista Circle.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Worcester, Marlborough, Shrewsbury, Westborough, Grafton, Holden,
Auburn, Hopkinton, Northborough, Oxford, Millbury, Charlton,
Leicester, Sutton, Rutland, West Boylston, Upton, Paxton, Boylston
and Berlin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 4219 7157 4218 7157 4215 7191 4235 7195
4236 7161 4235 7162 4234 7160 4233 7160
4232 7159 4226 7158 4226 7159 4222 7160
4220 7158
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR
$$
BL256
WGUS71 KBOX 102255
FFSBOX
Flash Flood Statement
National Weather Service Boston/Norton MA
655 PM EDT Mon Jul 10 2023
MAC027-102305-
/O.CAN.KBOX.FF.W.0018.000000T0000Z-230710T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Worcester MA-
655 PM EDT Mon Jul 10 2023
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN WORCESTER
COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 800 AM EDT Tuesday for
portions of northern Connecticut. Portions of Massachusetts.
LAT...LON 4219 7157 4218 7157 4215 7191 4235 7195
4236 7161 4235 7162 4234 7160 4233 7160
4232 7159 4226 7158 4226 7159 4222 7160
4220 7158
$$
BLWhat forecasters said that day
The local office's own words before this flash 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 flash flood warning went out at Jul 10, 4:02 PM EDT, 22 minutes earlier.
Area forecast discussion, Jul 10, 4:02 PM EDT, 22 minutes before
Area Forecast Discussion National Weather Service Boston/Norton MA 402 PM EDT Mon Jul 10 2023 .SYNOPSIS... Showers and a few thunderstorms will come to an end this evening. Mid summer weather conditions return beginning Tuesday, with highs into the lower 90s for many of us on Wednesday. Chances for thunderstorms, along with humid conditions, return for Thursday and Friday. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... 345 pm update... monitoring a band of showers and thunderstorms stretching from central MA southward into eastern CT. These have formed along a surface convergence boundary associated with a surface trough, combined with a modest amount of surface instability. SPC mesoanalysis indicates lesser instability to the east of that line, likely due to the southeast flow advecting in a more stable marine influenced airmass. Latest hi-res models suggest that this line may go another 30-40 miles eastward before dissipating. This would be great news, especially across portions of northern RI (and the PVD area) which got soaked a little earlier today, so even a little bit of additional rainfall would cause problems. Have made adjustments to the hourly PoPs based on the latest HRRR and RAP models, and go with the idea that the convective line will be dissipating between 6-7pm. With sunset, we lose the instability and that means most of the shower activity should dissipate. Could still be a rogue shower or two through midnight, especially near that surface trough, as it slowly moves eastward and eventually offshore. Once that happens, the rest of the night should be quiet. Still rather high humidity, so lows in the 60s. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/... 345 pm update... High and dry for the day. Upper level trough will push offshore early in the day, setting us up with dry west/northwest flow. Good amount of sunshine will promote boundary layer mixing up to 5000ft or so. Some winds of 20-25kts up that high, so we could see occasionally breezy conditions, but overall not bad. 850mb temperatures will be around 15C, so that supports surface temperatures about 30C. Stuck with the NBM which had highs in the mid/upper 80s across the region. Don't think there will be any significant sea breeze tomorrow given the westerly flow, but if one does form, it will be pinned pretty much to the coast. Quiet Tuesday night. Not an overly dry airmass with dewpoints in the 60s, so overnight lows will be in the 60s. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... 345 pm update... Given the ongoing weather today, the extended forecast is pretty much NBM, and not much different than previous shift had. A few highlights: Wednesday: 850mb temperatures up around 17C, so that suggests we should be able to reach the 90F level, especially across the lower elevations. Dewpoints will be in the lower to mid 60s, so although a bit muggy, it won't be oppresive. Small risk of afternoon convection, primarily across the higher terrain of western MA. Thursday/Friday: Looks like unsettled weather returns. Upper trough to our west sets up, with shortwaves rippling through the flow that if everything works out perfectly with timing, will result in additional showers/thunderstorms especially during the daytime. Flow turns more southwest, so we return to a humid airmass, thus potentially another round of threat for locally heavy rainfall. Coordination with WPC to add in a slight risk in their most recent ERO for both Thursday and Friday -- primarily across western sections of SNE. Saturday/Sunday/Monday: Broad southwest flow continues at all levels. Looks like what mid-summer is supposed to be here in SNE with warm and humid conditions with the chance of showers and thunderstorms. NBM seems to offer the best forecast at this point as those nuance details (such as low level boundaries, timing of shortwaves, exact amounts of low level instability) are too hard to pin down this far out in time. Thus we have pretty much a climo forecast - highs in the 80s with a 40-50% chance of showers/t-storms each day. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... Forecast Confidence Levels: Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. 18z Update Overall moderate confidence. Currently a mix of IFR to VFR across the region. Generally IFR across eastern sections with low stratus, fog and moderate to heavy rain. MVFR/VFR conditions across primarily CT. With expected development of additional showers and isolated thunderstorms this afternoon, the lower flight category conditions will be more common. Showers and isolated thunderstorms should be dissipating by 00z for the most part. Also a weak surface trough denoted by a wind shift extends from near ORE to east of BAF to about IJD then to GON. Southeast winds exist to the east of the trough, with westerly surface winds to the west of the trough. This trough will be slowly moving eastward, and should be off the coast by midnight. Last aspect to the forecast is the FG near the coast. Expect that to continue through the evening, but as winds turn westerly behind the trough, that fog should dissipate. At this time, expect VFR conditions should be in place for much of the region by 12z Tuesday, and that should continue for the entire day. VFR into Tuesday night as well. BOS Terminal...Moderate confidence. IFR for the rest of the afternoon into early evening. Uncertainty as to whether additional showers/isolated TSRA could reach BOS late this afternoon. Included only VCSH at this time, but there is a low probability for a brief TSRA to reach BOS in the 21-23z timeframe. Improving conditions during the evening, should be VFR by the morning push. BDL Terminal...Moderate confidence. Should remain VFR, with the bulk of the SHRA expected to stay to the east of the airport this afternoon into evening. Outlook /Wednesday through Saturday/... Wednesday through Wednesday Night: VFR. Thursday: VFR. Breezy. Chance SHRA, isolated TSRA. Thursday Night: Mainly VFR, with areas MVFR possible. Breezy. Chance SHRA, isolated TSRA. Friday: Mainly MVFR, with areas VFR possible. Breezy. SHRA likely, isolated TSRA. Friday Night: Mainly VFR, with local MVFR possible. Breezy. Chance SHRA, isolated TSRA. Saturday: VFR. Chance SHRA, isolated TSRA. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. 345 pm update High confidence Showers, perhaps an isolated thunderstorm, and areas of fog will be the primary weather through this evening. However improving conditions expected after midnight and lasting through Tuesday night. Winds will ultimately turn westerly after midnight and last Tuesday. Speeds will remain less than 20 kts, so wave heights will generally be 4ft or less through the period. Outlook /Wednesday through Saturday/... Wednesday through Thursday: Winds less than 25 kt. Thursday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas locally approaching 5 ft. Chance of rain showers, isolated thunderstorms. Friday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of seas approaching 5 ft. Chance of rain showers, isolated thunderstorms. Friday Night: Low risk for Small Craft Advisory winds with gusts up to 20 kt. Areas of seas approaching 5 ft. Chance of rain showers, isolated thunderstorms. Saturday: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers, isolated thunderstorms. && .HYDROLOGY... 345 pm update... Will keep the Flood Watch up at this point, however it may be able to come down later this evening. Really just one more batch of convection that we will monitor. Attention the next couple of days turns to the Connecticut River. Lots and lots of rain further north will be sending quite a surge of water our way. River Flood warnings already raised for points from Springfield northward. Expect it to crest into the moderate levels. Would think we will raise warnings for the river in CT as well sooner than later as the flood crest should be getting down there starting Tuesday. We will await updated forecasts from the NERFC before making those decisions. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...Flood Watch through Tuesday morning for CTZ002>004. MA...Flood Watch through Tuesday morning for MAZ002>004-008>012-026. RI...Flood Watch through Tuesday morning for RIZ001>007. MARINE...None. && SYNOPSIS...Nash NEAR TERM...Nash SHORT TERM...Nash LONG TERM...Nash AVIATION...Nash MARINE...Nash HYDROLOGY...Team BOX
Hazardous weather outlook, Jul 10, 4:08 PM EDT, 16 minutes before
Hazardous Weather Outlook National Weather Service Boston/Norton MA 408 PM EDT Mon Jul 10 2023 CTZ002>004-MAZ002>004-008>012-026-RIZ001>007-112015- 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-Northern Middlesex MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI- Washington RI-Newport RI- 408 PM EDT Mon Jul 10 2023 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... This Hazardous Weather Outlook is for northern Connecticut, central Massachusetts, eastern Massachusetts, western Massachusetts, northern Rhode Island and southern Rhode Island. .DAY ONE...Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flood Watch. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MAZ005>007-013>024-RIZ008-112015- 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-Block Island RI- 408 PM EDT Mon Jul 10 2023 This Hazardous Weather Outlook is for eastern Massachusetts, northeastern Massachusetts, southeastern Massachusetts and southern Rhode Island. .DAY ONE...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>256-112015- 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- 408 PM EDT Mon Jul 10 2023 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...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/NWSBoston You can follow us on Twitter at @NWSBoston
In the hours before
Special weather statement, Jul 10, 12:51 PM EDT, 3 hours 33 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
1251 PM EDT Mon Jul 10 2023
MAZ005>007-012>021-RIZ001-007-101815-
Southern Worcester MA-Eastern Essex MA-Suffolk MA-
Southern Plymouth MA-Central Middlesex County MA-Eastern Norfolk MA-
Western Plymouth MA-Western Essex MA-Southeast Middlesex MA-
Eastern Plymouth MA-Western Norfolk MA-Northern Bristol MA-
Southern Bristol MA-Newport RI-Northwest Providence RI-
1251 PM EDT Mon Jul 10 2023
...Strong thunderstorms will impact portions of southwestern Essex,
southeastern Worcester, Norfolk, Suffolk, southeastern Middlesex,
Plymouth, Bristol, eastern Newport and northeastern Providence
Counties with heavy rainfall through 215 PM EDT...
At 1249 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Franklin to Dighton to near Tiverton. Movement
was northeast at 20 mph.
HAZARD...Minor flooding.
SOURCE...Radar indicated.
IMPACT...Minor nuisance flooding of typically flood prone areas.
Locations impacted include...
Boston, Cambridge, New Bedford, Brockton, Quincy, Lynn, Fall River,
Newton, Lawrence, Somerville, Pawtucket, Framingham, Waltham, Malden,
Brookline, Plymouth, Medford, Taunton, Weymouth and Revere.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Do not drive through flooded roads or underpasses. Avoid low lying
areas near small streams.
These storms may intensify and become severe. Stay tuned to your
local media for updates and possible warnings.
&&
LAT...LON 4247 7089 4236 7097 4237 7105 4230 7105
4225 7088 4234 7088 4226 7087 4220 7072
4221 7071 4220 7071 4199 7063 4201 7071
4199 7070 4193 7056 4146 7117 4146 7119
4171 7116 4209 7154 4269 7114
TIME...MOT...LOC 1649Z 210DEG 18KT 4207 7143 4184 7117 4157 7117
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
DooleyLocal storm report, Jul 10, 2:17 PM EDT, 2 hours 7 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
217 PM EDT Mon Jul 10 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0834 AM Flood Chester 42.28N 72.98W
07/10/2023 Hampden MA Amateur Radio
Blandford Road at Route 20 closed due to
flooding.
0845 AM Flood Williamsburg 42.40N 72.72W
07/10/2023 Hampshire MA Law Enforcement
Section of Route 9 has significant street
flooding. relayed by Amatuer Radio.
0915 AM Flood Ashfield 42.53N 72.78W
07/10/2023 Franklin MA Amateur Radio
Conway Road flooded/impassable.
0920 AM Flood Conway 42.52N 72.68W
07/10/2023 Franklin MA Law Enforcement
North Poland Road at Route 116 flooding up
to doors of cars. Relayed by amatuer Radio.
0952 AM Flood Williamsburg 42.40N 72.72W
07/10/2023 Hampshire MA Law Enforcement
Ashfield road flooding up to windows of
homes with rescues in progress. Relayed by
Amatuer Radio.
1017 AM Flood Ashfield 42.53N 72.78W
07/10/2023 Franklin MA Law Enforcement
Williamsburg Road and Plainfield Roads
closed due to flooding. Also Bug Hill Road
partially washed out. Relayed by Amateur
Radio.
1017 AM Flood Douglas 42.05N 71.73W
07/10/2023 Worcester MA Amateur Radio
Gilboa Road has significant street flooding.
1025 AM Flood Ashfield 42.53N 72.78W
07/10/2023 Franklin MA Law Enforcement
Brrton Hill Road washed out. Relayed by
Amateur Radio.
1032 AM Flood Williamsburg 42.40N 72.72W
07/10/2023 Hampshire MA Law Enforcement
Section of Route 9 closed due to flooding.
Relayed by Amateur Radio.
1056 AM Flood Conway 42.52N 72.68W
07/10/2023 Franklin MA Amateur Radio
Homes on Main Street being evacuated for
flooding. Academy Hill Road flooded and
impassable. Relayed by Amateur Radio.
1100 AM Flood Williamsburg 42.40N 72.72W
07/10/2023 Hampshire MA Law Enforcement
North Street bridge closed due to flooding.
Route 9 from Main to South closed due to
flooding with 10 inches of water. Relayed by
Amateur Radio.
1130 AM Flood Williamsburg 42.40N 72.75W
07/10/2023 Hampshire MA Emergency Mngr
Beaver dam broke causing four homes to be
flooded.
1150 AM Flood Northampton 42.33N 72.68W
07/10/2023 Hampshire MA Trained Spotter
Meadow Street flooded with road closed.
Relayed by Amateur Radio.
1158 AM Flood Worcester 42.27N 71.81W
07/10/2023 Worcester MA Trained Spotter
Area of 86 southwest cutoff flooded with 4
cars stuck in flood waters.
1202 PM Flood Providence 41.82N 71.42W
07/10/2023 Providence RI Law Enforcement
Route 146 near construction site has
significant flooding. relayed by Amateur
Radio.
1203 PM Flood Providence 41.82N 71.42W
07/10/2023 Providence RI Park/Forest Srvc
Portion of Pleasant Valley Parkway flooded
per Providence Parks Department relayed by
Amateur Radio.
1220 PM Flood Cranston 41.77N 71.48W
07/10/2023 Providence RI Trained Spotter
Car stuck in street flooding at the Wilbur
Avenue Bridge relayed by Amateur Radio.
1222 PM Flood Providence 41.82N 71.42W
07/10/2023 Providence RI Law Enforcement
Narragansett Avenue cars stuck in street
flooding. relayed by Amateur Radio.
1225 PM Flood Providence 41.82N 71.42W
07/10/2023 Providence RI Law Enforcement
Downtown flooded with 1 foot of water.
Relayed by Amateur Radio.
1228 PM Flood Cranston 41.77N 71.48W
07/10/2023 Providence RI Law Enforcement
Parrk Avenue at Southern Street flooded and
impassable, road closed. Relayed by Amateur
Radio.
0100 PM Flood Providence 41.82N 71.42W
07/10/2023 Providence RI Law Enforcement
Car stuck in flood waters on Pleasant Valley
Parkway. Relayed by Amateur Radio.
0103 PM Flood 1 SW Providence 41.81N 71.44W
07/10/2023 Providence RI Fire Dept/Rescue
Route 10 northbound closed at Union Avenue
due to flooding per FD relayed by amateur
radio.
0135 PM Flood 2 SW Fall River 41.69N 71.14W
07/10/2023 Bristol MA Fire Dept/Rescue
Car stuck in flooding at the intersection of
Pleasant St and Quequechan St relayed by
amateur radio.
0145 PM Flood 1 WNW Norfolk 42.12N 71.33W
07/10/2023 Norfolk MA Law Enforcement
Rockwood Road near the railroad tracks
flooded to the point where DPW assistance
was requested. Relayed by amateur radio.
0145 PM Flood 5 NE Heath 42.72N 72.76W
07/10/2023 Franklin MA Amateur Radio
Basement flooded near Ed Clark Road.
0145 PM Flood 2 NNW Plainville 42.02N 71.35W
07/10/2023 Norfolk MA Law Enforcement
Grant Street flooded and impassable relayed
by amateur radio.
0153 PM Flood 3 WSW Fall River 41.69N 71.15W
07/10/2023 Bristol MA Amateur Radio
Plymouth Avenue in Fall River flooded and
impassable - cars stuck in the street
flooding.
0155 PM Flood 2 NNW Plainville 42.02N 71.35W
07/10/2023 Norfolk MA Law Enforcement
South Street at Wade Street is flooded and
impassable. Harvard Street is flooded and
impassable up to knee high depth - car stuck
in the water. Relayed by amateur radio.
&&Special weather statement, Jul 10, 2:24 PM EDT, 2 hours before
Special Weather Statement
National Weather Service Boston/Norton MA
224 PM EDT Mon Jul 10 2023
MAZ005>007-014>016-019-101930-
Eastern Essex MA-Eastern Plymouth MA-Suffolk MA-
Central Middlesex County MA-Eastern Norfolk MA-Western Essex MA-
Southeast Middlesex MA-
224 PM EDT Mon Jul 10 2023
...Strong thunderstorms will impact portions of Essex, northeastern
Norfolk, northeastern Suffolk, northeastern Middlesex and north
central Plymouth Counties with heavy rainfall through 330 PM EDT...
At 224 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Lynnfield to 8 miles northeast of Hull.
Movement was north at 20 mph.
HAZARD...Minor flooding.
SOURCE...Radar indicated.
IMPACT...Minor nuisance flooding of typically flood prone areas.
Locations impacted include...
Boston, Lowell, Cambridge, Quincy, Lynn, Lawrence, Somerville,
Haverhill, Malden, Medford, Weymouth, Revere, Peabody, Methuen,
Arlington, Everett, Salem, Billerica, Beverly and Woburn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Do not drive through flooded roads or underpasses. Avoid low lying
areas near small streams.
These storms may intensify and become severe. Stay tuned to your
local media for updates and possible warnings.
&&
LAT...LON 4287 7082 4281 7087 4270 7083 4264 7076
4269 7063 4265 7059 4257 7071 4254 7090
4253 7087 4246 7090 4241 7099 4220 7072
4208 7069 4254 7135 4270 7136 4274 7119
4281 7116 4281 7107 4286 7103 4289 7092
TIME...MOT...LOC 1824Z 194DEG 18KT 4254 7107 4234 7074
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
DooleySpecial weather statement, Jul 10, 2:25 PM EDT, 1 hour 59 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
225 PM EDT Mon Jul 10 2023
CTZ003-004-101930-
Tolland CT-Windham CT-
225 PM EDT Mon Jul 10 2023
...A strong thunderstorm will impact portions of southern Windham and
southeastern Tolland Counties through 330 PM EDT...
At 223 PM EDT, Doppler radar was tracking a strong thunderstorm over
Lebanon, or near Windham, moving northeast at 20 mph. This storm was
producing frequent lightning and torrential downpours.
HAZARD...Frequent lightning and minor flooding.
SOURCE...Radar indicated.
IMPACT...Minor nuisance flooding of typically flood prone areas.
Locations impacted include...
Mansfield, Windham, Plainfield, Willimantic, Killingly, Brooklyn,
Columbia, Canterbury, Pomfret, Sterling, Chaplin, Hampton, Eastford
and Scotland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. For your
safety, go indoors or to your vehicle. Do not drive through flooded
roads or underpasses. Avoid low lying areas near small streams.
&&
LAT...LON 4166 7213 4166 7216 4171 7224 4169 7226
4167 7227 4166 7230 4192 7203 4174 7182
4164 7199
TIME...MOT...LOC 1823Z 229DEG 18KT 4164 7220
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
FieldSpecial weather statement, Jul 10, 2:38 PM EDT, 1 hour 46 minutes before
Special Weather Statement National Weather Service Boston/Norton MA 238 PM EDT Mon Jul 10 2023 MAZ003-004-010-101915- Northern Worcester MA-Eastern Franklin MA-Eastern Hampshire MA- 238 PM EDT Mon Jul 10 2023 ...Heavy showers and a few thunderstorms will impact portions of northwestern Worcester, southeastern Hampshire and eastern Franklin Counties through 315 PM EDT... At 236 PM EDT, Doppler radar was tracking a line of heavy showers and a few thunderstorms extending from near Northfield southward to Belchertown. Movement was slowly east at 15 mph. HAZARD...Minor flooding. SOURCE...Radar indicated. IMPACT...Minor nuisance flooding of typically flood prone areas. Locations impacted include... Orange, Belchertown, Athol, Ware, Montague, Barre, North Brookfield, West Brookfield, Northfield, Hardwick, Bernardston, Oakham, Leverett, Erving, Shutesbury, Phillipston, Gill, Pelham, Royalston and Petersham. PRECAUTIONARY/PREPAREDNESS ACTIONS... Get indoors when you hear thunder. Do not resume outdoor activities until at least 30 minutes after the storm has passed. Do not drive through flooded roads or underpasses. Avoid low lying areas near small streams. && LAT...LON 4272 7215 4227 7209 4223 7245 4273 7253 TIME...MOT...LOC 1836Z 279DEG 12KT 4279 7251 4228 7241 MAX HAIL SIZE...0.00 IN MAX WIND GUST...<30 MPH Field
Special weather statement, Jul 10, 3:24 PM EDT, 1 hour before
Special Weather Statement
National Weather Service Boston/Norton MA
324 PM EDT Mon Jul 10 2023
CTZ003-004-MAZ003>005-010>014-017-020-026-RIZ001>007-102045-
Windham CT-Tolland CT-Southern Worcester MA-
Central Middlesex County MA-Eastern Hampden MA-Eastern Franklin MA-
Southeast Middlesex MA-Northwest Middlesex County MA-
Western Norfolk MA-Northern Bristol MA-Southern Bristol MA-
Northern Worcester MA-Eastern Hampshire MA-Eastern Kent RI-
Newport RI-Northwest Providence RI-Bristol RI-Washington RI-
Western Kent RI-Southeast Providence RI-
324 PM EDT Mon Jul 10 2023
...Moderate to heavy rainfall will impact portions of Windham,
eastern Tolland, Norfolk, Middlesex, eastern Franklin, northwestern
Bristol, Worcester, southeastern Hampshire, southeastern Hampden,
central Newport, Bristol, northern Washington, Kent and Providence
Counties through 445 PM EDT...
At 320 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Richmond to New Braintree to near
Killingly to near Ledyard Center. Movement was east at 25 mph.
HAZARD...Minor flooding.
SOURCE...Radar indicated.
IMPACT...A fine line of moderate to heavy rain may cause localized
flooding due to saturated soils.
Locations impacted include...
Worcester, Providence, Lowell, Newton, Warwick, Cranston, Pawtucket,
Framingham, Waltham, Taunton, East Providence, Woonsocket,
Leominster, Fitchburg, Billerica, Marlborough, Shrewsbury, Coventry,
Chelmsford and Cumberland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Do not drive through flooded roads or underpasses. Avoid low lying
areas near small streams.
These storms may intensify and become severe. Stay tuned to your
local media for updates and possible warnings.
&&
LAT...LON 4270 7138 4205 7110 4170 7124 4172 7126
4157 7124 4156 7130 4168 7128 4163 7132
4158 7132 4172 7136 4165 7136 4169 7145
4154 7142 4157 7136 4154 7136 4145 7180
4164 7179 4167 7229 4273 7241
TIME...MOT...LOC 1920Z 248DEG 20KT 4274 7222 4232 7216 4182 7190 4148
7199
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
DooleyThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 6:19 AM EDT | Special Weather Statement | BOX | Franklin, Hampden, Hampshire | 56 min |
| Jul 10, 7:14 AM EDT | Special Weather Statement | BOX | Bristol | 91 min |
| Jul 10, 7:22 AM EDT | Special Weather Statement | BOX | Franklin, Hampden, Hampshire | 83 min |
| Jul 10, 8:30 AM EDT | Areal Flood Warning | BOX | Franklin, Hampden, Hampshire | 5 hr |
| Jul 10, 8:50 AM EDT | Special Weather Statement | BOX | Bristol | 85 min |
| Jul 10, 10:29 AM EDT | Areal Flood Warning | BOX | Hampden, Hampshire, Middlesex, Worcester | 4 hr |
| Jul 10, 11:38 AM EDT | Special Weather Statement | BOX | Bristol, Norfolk | 82 min |
| Jul 10, 11:49 AM EDT | Areal Flood Warning | BOX | Bristol, Middlesex, Norfolk, Worcester | 3 hr |
| Jul 10, 11:53 AM EDT | Areal Flood Warning | BOX | Middlesex, Worcester | 3 hr |
| Jul 10, 12:45 PM EDT | Flash Flood Warning | BOX | Bristol | 2 hr |
| Jul 10, 12:51 PM EDT | Special Weather Statement | BOX | Bristol, Norfolk, Plymouth | 84 min |
| Jul 10, 12:52 PM EDT | River Flood Warning | BOX | Franklin | 25 hr |
| Jul 10, 12:52 PM EDT | River Flood Warning | BOX | Franklin, Hampshire | 60 hr |
| Jul 10, 12:52 PM EDT | River Flood Warning | BOX | Hampden, Hampshire | 21 days |
| Jul 10, 12:52 PM EDT | River Flood Warning | BOX | Hampden | 62 hr |
| Jul 10, 12:52 PM EDT | River Flood Warning | BOX | Hampden | 40 hr |
| Jul 10, 2:24 PM EDT | Special Weather Statement | BOX | Essex, Suffolk | 66 min |
| Jul 10, 2:38 PM EDT | Special Weather Statement | BOX | Franklin | 37 min |
| Jul 10, 2:53 PM EDT | River Flood Warning | BOX | Berkshire, Franklin | 13 hr |
| Jul 10, 3:24 PM EDT | Special Weather Statement | BOX | Middlesex, Norfolk, Worcester | 81 min |
| Jul 10, 4:54 PM EDT | Flash Flood Warning | BOX | Worcester | 2 hr |
| Jul 10, 5:30 PM EDT | Special Weather Statement | BOX | Middlesex | 60 min |
| Jul 10, 6:08 PM EDT | River Flood Warning | BOX | Hampden | 21 days |
Nearby
Flash Flood Warnings in Massachusetts, 2023Every flash flood warning in 2023
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.