Alert archive / Connecticut / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 87, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this severe thunderstorm warning at Sep 8, 2023, 8:56 PM EDT for Capitol Planning Region, Connecticut; Hampden County, Massachusetts. It was in force for 64 min. 2 reports 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 8, 2023, 8:56 PM EDT (00:56 UTC)
- Expired
- Sep 8, 2023, 10:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
The radar
The Brookhaven radar (KOKX), 92 km from the middle of the area, began a volume at 00:58 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 8, 9:30 PM EDT | TSTM WND DMG | Hartford, CT | Several limbs down on Stone St between New Britain Avenue and I-84. |
| Sep 8, 9:30 PM EDT | TSTM WND DMG | Hartford, CT | Several limbs down on Stone St between New Britain Avenue and I-84. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 34 minutes after it went out.
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 8, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.9 hours before the alert went out and 92 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
- 1827 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 631 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.0
The text
As transmitted.
481
WUUS51 KBOX 090056
SVRBOX
CTC003-013-MAC013-090200-
/O.NEW.KBOX.SV.W.0087.230909T0056Z-230909T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
856 PM EDT Fri Sep 8 2023
The National Weather Service in Boston/Norton has issued a
* Severe Thunderstorm Warning for...
Northwestern Tolland County in northern Connecticut...
Hartford County in northern Connecticut...
South central Hampden County in western Massachusetts...
* Until 1000 PM EDT.
* At 856 PM EDT, a severe thunderstorm was located over Farmington,
moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Springfield, Hartford, New Britain, West Hartford, Bristol,
Manchester, Chicopee, East Hartford, Enfield, Southington,
Glastonbury, Newington, Vernon, Windsor, Agawam, West Springfield,
Wethersfield, South Windsor, Farmington, and Simsbury.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4219 7255 4201 7224 4163 7267 4163 7271
4160 7272 4157 7280 4155 7282 4157 7283
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7294 4164 7299 4172 7300
TIME...MOT...LOC 0056Z 219DEG 24KT 4173 7286
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KP3 follow-up statements
914
WWUS51 KBOX 090119
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
919 PM EDT Fri Sep 8 2023
CTC003-013-MAC013-090200-
/O.CON.KBOX.SV.W.0087.000000T0000Z-230909T0200Z/
Tolland CT-Hartford CT-Hampden MA-
919 PM EDT Fri Sep 8 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHWESTERN TOLLAND...HARTFORD AND SOUTH CENTRAL HAMPDEN
COUNTIES...
At 919 PM EDT, a severe thunderstorm was located over Enfield, moving
northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Springfield, Hartford, New Britain, West Hartford, Bristol,
Manchester, Chicopee, East Hartford, Enfield, Southington,
Glastonbury, Newington, Vernon, Windsor, Agawam, West Springfield,
Wethersfield, South Windsor, Farmington, and Simsbury.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4219 7255 4201 7224 4163 7267 4163 7271
4160 7272 4157 7280 4155 7282 4157 7283
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7294 4164 7299 4172 7300
TIME...MOT...LOC 0119Z 219DEG 16KT 4194 7253
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KP493
WWUS51 KBOX 090138
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
938 PM EDT Fri Sep 8 2023
CTC003-013-MAC013-090200-
/O.CON.KBOX.SV.W.0087.000000T0000Z-230909T0200Z/
Tolland CT-Hartford CT-Hampden MA-
938 PM EDT Fri Sep 8 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHWESTERN TOLLAND...CENTRAL HARTFORD AND SOUTH CENTRAL HAMPDEN
COUNTIES...
At 937 PM EDT, a severe thunderstorm was located near Ellington, or
near Enfield, moving northeast at 50 mph.
HAZARD...60 mph wind gusts, quarter size hail, and heavy rain in
excess of 1 inch .
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Springfield, Hartford, New Britain, West Hartford, Bristol,
Manchester, East Hartford, Enfield, Southington, Glastonbury,
Newington, Vernon, Windsor, Wethersfield, South Windsor, Farmington,
Simsbury, Bloomfield, Berlin, and Rocky Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4215 7250 4201 7224 4163 7267 4163 7271
4160 7272 4157 7280 4155 7282 4157 7283
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7294 4164 7299 4168 7295
TIME...MOT...LOC 0137Z 213DEG 42KT 4192 7251
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KP804
WWUS51 KBOX 090155
SVSBOX
Severe Weather Statement
National Weather Service Boston/Norton MA
955 PM EDT Fri Sep 8 2023
CTC003-013-MAC013-090204-
/O.EXP.KBOX.SV.W.0087.000000T0000Z-230909T0200Z/
Tolland CT-Hartford CT-Hampden MA-
955 PM EDT Fri Sep 8 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TOLLAND...CENTRAL
HARTFORD AND SOUTH CENTRAL HAMPDEN COUNTIES WILL EXPIRE AT 1000 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern Connecticut...and western Massachusetts.
LAT...LON 4215 7250 4201 7224 4163 7267 4163 7271
4160 7272 4157 7280 4155 7282 4157 7283
4157 7285 4155 7285 4156 7288 4156 7294
4163 7293 4164 7294 4164 7299 4168 7295
TIME...MOT...LOC 0154Z 219DEG 24KT 4200 7242
$$
KPWhat forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Sep 8, 8:19 PM EDT, 37 minutes earlier.
Area forecast discussion, Sep 8, 8:19 PM EDT, 37 minutes before
Area Forecast Discussion National Weather Service Boston/Norton MA 819 PM EDT Fri Sep 8 2023 .SYNOPSIS... Scattered showers and thunderstorms will continue across interior southern New England this evening. Not as hot this weekend into Monday, but it still will be humid with showers and thunderstorms at times that may result in locally heavy rainfall. Somewhat drier and less humid conditions may arrive around Tuesday, but will be short lived as the risk for showers and thunderstorms increase by the middle to latter part of next week. Lastly...Hurricane Lee will spread high surf and dangerous rip currents to our beaches next week especially by late in the week. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... Loss of daytime heating has helped to weaken the remaining thunderstorms across southern New England this evening. Mid level lapse rates were no longer as robust either. So, while showers and thunderstorms will remain in the forecast through a few more hours this evening, no longer expecting the powerful winds and corresponding wind damage from earlier today. Still have concerns for lingering flooding across portions of Franklin and Hampshire Counties, but the heaviest rainfall was moving off to the east. Expecting conditions to improve. Main changes with this forecast was to try to time out the precipitation this evening. Did think the HRRR was a good start, but perhaps a little slow. Minor tweaks to temperatures also. Previous Discussion... Convection is ongoing and within an extremely favorable environment. In the area of eastern CT/northern RI/central MA surface based CAPE is up to 4500 J/kg! This is thanks largely to the warm, moist airmass. We're looking at temperatures in the mid 80s and dewpoints in the mid 70s! These storm have a history of producing 1 inch hail and wind damage. These storms (given low level lapse rates of 7.5C/km) have exploded from nothing to towering cells in a very short time. We'll continue to see more of the same, mainly north and west of the I-95 corridor where the instability is in closer proximity to the forcing from the approaching trough. However, can't rule out a few storms making it into eastern MA; with dewpoints of 74 and 75 at Boston and Marshfield respectively and steep low level lapse rates if something can make it through the 900mb capping inversion it could take off; low probability but not zero. Overnight the storms will taper off, but lingering instability thanks to the heat/humidity (more on that below) may be able to sustain a few storms overnight. Patchy fog and low clouds return. Today is the last day we'll deal with heat and humidity that rises to the level of needing a Heat Advisory, but don't be fooled into thinking that much cooler and drier air will be arriving. No real cold front makes it to us and southerly flow continues to offer up dewpoints in the upper 60s/low 70s. On a related note, low temperatures will be quite mild once again, in the lower 70s. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/... As mentioned above we won't have a dry post frontal airmass to enjoy on Saturday as the airmass remains largely unchanged. High temperatures in the mid to upper 80s and dewpoints in the mid 70s will make for another very muggy day. We'll start off the day with lots of very low clouds around trapped beneath a 900mb inversion. This inversion slowly gets mixed out everywhere except the immediate south coast of RI, Cape Cod, and the islands; these locations could remain socked much of the day while areas further north/inland will see a mix of clouds and sun. We'll see instability building once again, but not as much as today, in the 1000-2500 J/kg range. Bulk shear will also be less than today and quite unfavorable for sustained updrafts (10-15kts). Also, the 500 mb jet overhead today will have moved off to the north. All this, together with the mid level trough to our west moving extremely slowly will limit our severe potential tomorrow. SPC currently has SNE under general thunder with a Marginal Risk (level 1 of 5) just barely clipping our northwest zones. One concern with these storms may be for localized flooding, for which WPC has western MA/CT in a marginal risk of excessive rainfall. While this is a risk given PWATs>1.5", given the rather dry antecedent conditions unless one area gets a lot of rain in a storm today and then again tomorrow, flooding is a low probability. Saturday night will feature more of the same: warm (upper 60s/low 70s) and muggy. It will be another night with low clouds and patchy fog thanks to the moist southerly flow. && .LONG TERM /SUNDAY THROUGH FRIDAY/... Key Points... * Still humid with showers & thunderstorms at times Sun & Mon with locally heavy rainfall possible too * Somewhat lower humidity with seasonable temps Tue but with more showers arriving by mid to late next week * Hurricane Lee will begin to spread high surf & dangerous rip currents to our beaches next week...especially late in the week Details... Sunday and Monday... Shortwave trough to our west will continue result in southwest flow aloft and persistent humidity. Dewpoints of 70+ and Pwats 1.5+ inches coupled with pieces of shortwave energy lifting into southern New England will result in unsettled weather too with showers and thunderstorms at times which may result in locally heavy rainfall. Specific timing remains challenging...but activity is likely to be most numerous during the afternoon and evenings when diurnal heating is maximized. The CSU machine learning guidance does indicate some low probs for excessive rainfall/flooding. This will have to be watched given 70+ dewpoints and Pwats of 1.5+ inches. Whether that risk is realized will depend upon if activity can train along the approaching pre-frontal trough and/or cold front. Clouds and precipitation at times will probably hold high temps in the upper 70s to the middle 80s both days with Sunday favored to be on the warmer side of those numbers. Tuesday... The initial shortwave trough probably will have moved east of our region by Tuesday. This should result in somewhat lower humidity and seasonable temps. Some of the guidance indicates a weak wave or two of low pressure may be riding along a frontal boundary to our south on Tue. This may generate onshore flow and keep highs in the 70s for Tue We may even have a few showers or a bit of drizzle for a time...but should be considerably less rainfall than Sun and Mon. Wednesday through Friday... Another potent shortwave trough dropping southeast towards the Great Lakes will continue the relatively active weather pattern. More showers and a few t-storms will be possible by the mid to late next week. Lastly...it is way too soon to know what level of impacts, if any, Hurricane Lee will have across the U.S. east coast. Regardless...high surf and dangerous rip currents will likely impact our beaches next week especially during the latter half of the week. && .AVIATION /00Z SATURDAY THROUGH WEDNESDAY/... Forecast Confidence Levels: Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Tonight...High Confidence. Scattered strong convection across the interior dissipates this evening. Otherwise, widespread IFR/LIFR ceilings return overnight. Light southwest winds prevail. Saturday...High Confidence IFR ceilings early gradually improve to VFR by late morning/early afternoon. Light southwest winds. Scattered SHRA/TSRA. Saturday night...High confidence. IFR ceilings once again. Light SSW winds. KBOS TAF...High confidence in TAF. KBDL TAF...High confidence in TAF. Outlook /Sunday through Wednesday/... Sunday: Mainly MVFR, with areas VFR possible. Chance SHRA, chance TSRA. Sunday Night: Mainly MVFR, with areas VFR possible. Chance SHRA, slight chance TSRA. Monday: Mainly MVFR, with areas VFR possible. SHRA likely, chance TSRA. Monday Night: MVFR/IFR conditions possible. Chance SHRA, slight chance TSRA. Tuesday: MVFR/IFR conditions possible. Slight chance SHRA. Tuesday Night: Mainly MVFR, with local VFR possible. Chance SHRA. Wednesday: Breezy. Chance SHRA. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Through Saturday night... A mid-level ridge to the east will continue to support relatively tranquil conditions across the coastal waters through Saturday night. Winds will be 5-10kts out of the SSW through Saturday, decreasing Saturday night. Can't rule out a pop up shower or thunderstorm over the coastal waters Saturday. Outlook /Sunday through Wednesday/... Sunday: Winds less than 25 kt. Slight chance of rain showers, slight chance of thunderstorms. Sunday Night: Winds less than 25 kt. Chance of rain showers, slight chance of thunderstorms. Monday: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers, slight chance of thunderstorms. Monday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers, slight chance of thunderstorms. Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Tuesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers. Wednesday: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...None. && SYNOPSIS...BW NEAR TERM...Belk/BW SHORT TERM...BW LONG TERM...BL AVIATION...Belk/BL/BW MARINE...BL/BW
In the hours before
Local storm report, Sep 8, 5:26 PM EDT, 3 hours 30 minutes before
Preliminary Local Storm Report
National Weather Service Boston/Norton MA
526 PM EDT Fri Sep 8 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM Hail Andover 42.66N 71.14W
09/08/2023 M1.00 inch Essex MA Trained Spotter
&&Local storm report, Sep 8, 5:27 PM EDT, 3 hours 29 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
527 PM EDT Fri Sep 8 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 PM Tstm Wnd Dmg 3 W Worthington 42.42N 73.00W
09/07/2023 Hampshire MA Law Enforcement
Corrects previous tstm wnd dmg report from 3
W Worthington. Tree down on powerlines near
Old North Rd in Worthington. Relayed by
amateur radio.
0920 PM Tstm Wnd Dmg 3 NE Huntington 42.27N 72.85W
09/07/2023 Hampshire MA Law Enforcement
Tree down on County Rd in Huntington.
Relayed by amateur radio.
0928 PM Tstm Wnd Dmg 1 NW Russell 42.20N 72.87W
09/07/2023 Hampden MA Law Enforcement
Tree down near Dickinson Hill Rd in Russell.
Relayed by amateur radio.
0930 PM Tstm Wnd Dmg 1 ENE Rowe 42.70N 72.89W
09/07/2023 Franklin MA Fire Dept/Rescue
Tree and wires downed on pond road in Rowe.
Relayed by amateur radio.
0930 PM Tstm Wnd Dmg 2 ESE Charlemont 42.63N 72.85W
09/07/2023 Franklin MA Law Enforcement
tree down blocking south river rd in
charlemont. relayed by amateur radio.
0935 PM Tstm Wnd Dmg 3 WNW Hawley 42.58N 72.94W
09/07/2023 Franklin MA Fire Dept/Rescue
Tree down on West Hawley Rd in Hawley.
Relayed by amateur radio.
0940 PM Tstm Wnd Dmg 2 SW Deerfield 42.53N 72.63W
09/07/2023 Franklin MA Fire Dept/Rescue
tree down on wires on stillwater rd in
deerfield. relayed by amateur radio.
0945 PM Tstm Wnd Dmg 1 NW Montague 42.55N 72.55W
09/07/2023 Franklin MA Law Enforcement
tree down at intersection of meadow rd and
south ferry rd in montague. relayed by
amateur radio.
0100 PM Tstm Wnd Dmg Andover 41.73N 72.37W
09/08/2023 Tolland CT Fire Dept/Rescue
Corrects previous non-tstm wnd dmg report
from Andover. Corrects previous non-tstm wnd
dmg report from Andover. Tree and wires down
on Shoddy mill Road. relayed by Amateur
Radio.
0113 PM Hail Storrs 41.81N 72.26W
09/08/2023 M1.00 inch Tolland CT Trained Spotter
Reported by spotter at University of
Connecticut.
0155 PM Tstm Wnd Dmg Woodstock 41.95N 71.98W
09/08/2023 Windham CT Fire Dept/Rescue
Corrects previous tstm wnd dmg report from
Woodstock. Several trees down. Area of Dugg
Hill Road. Relayed by Amateur Radio.
0157 PM Hail West Brookfield 42.24N 72.15W
09/08/2023 M1.00 inch Worcester MA Amateur Radio
Quarter size hail.
0200 PM Tstm Wnd Dmg Dudley 42.05N 71.93W
09/08/2023 Worcester MA Fire Dept/Rescue
Laarge tree down on Blackmere Road. relayed
by Amateur Radio.
0213 PM Tstm Wnd Dmg Millbury 42.20N 71.76W
09/08/2023 Worcester MA Law Enforcement
Trees down on Riverlin Street. Relayed by
Amateur Radio.
0215 PM Tstm Wnd Dmg Sutton 42.15N 71.77W
09/08/2023 Worcester MA Law Enforcement
Tree down across Blackstone Street and tree
down across Wheelock Road. Relayed by
Amateur Radio.
0215 PM Lightning Millbury 42.20N 71.76W
09/08/2023 Worcester MA Amateur Radio
House fire on Stone Road.
0217 PM Tstm Wnd Dmg Westborough 42.27N 71.62W
09/08/2023 Worcester MA Amateur Radio
Tree down on a house on West Main Street.
Trees down on wires on West Main Street.
0225 PM Tstm Wnd Dmg Acton 42.48N 71.47W
09/08/2023 Middlesex MA Trained Spotter
Multiple trees down along Central St.
Windsor Ave, Prospect Street and Main
Street.
0225 PM Tstm Wnd Dmg 1 S Acton 42.47N 71.46W
09/08/2023 Middlesex MA Trained Spotter
Multiple trees down with 12+ inch diameter
at Tuttle Drive and Lothrop Road.
0230 PM Tstm Wnd Dmg Bolton 42.43N 71.60W
09/08/2023 Worcester MA Fire Dept/Rescue
5-6 trees snapped in a stright line along
Route 117/Main St.
0240 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Public
Numerous trees down and snapped. Straight
line SW to NE after the heavy rainfall.
0240 PM Tstm Wnd Dmg Acton 42.48N 71.47W
09/08/2023 Middlesex MA Trained Spotter
2 trees down on Newtown Road.
0240 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Amateur Radio
Tree down on Park Road. Trees down on wires
on Mill Road, Boston Road and Concord Road.
0245 PM Tstm Wnd Dmg Westford 42.58N 71.43W
09/08/2023 Middlesex MA Amateur Radio
tree down on Longmeadow Road.
0253 PM Tstm Wnd Dmg 1 E Lowell 42.64N 71.30W
09/08/2023 Middlesex MA Public
In Lowell wires were down on Rodgers St.
0300 PM Hail Andover 42.66N 71.14W
09/08/2023 M1.00 inch Essex MA Trained Spotter
0300 PM Tstm Wnd Dmg 1 WSW Lowell 42.63N 71.35W
09/08/2023 Middlesex MA Trained Spotter
In Lowell, there were wires down on
Monadnock Ave.
0340 PM Tstm Wnd Dmg Bernardston 42.67N 72.55W
09/08/2023 Franklin MA Law Enforcement
Tree and power lines down on Brattleboro
Road. Relayed by amateur radio.
&&Special weather statement, Sep 8, 6:35 PM EDT, 2 hours 21 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
635 PM EDT Fri Sep 8 2023
CTZ002>004-MAZ003>005-010>013-RIZ001-003-082330-
Hartford CT-Tolland CT-Windham CT-Southern Worcester MA-
Western Norfolk MA-Central Middlesex County MA-Eastern Hampden MA-
Northern Worcester MA-Eastern Franklin MA-Eastern Hampshire MA-
Northwest Providence RI-Western Kent RI-
635 PM EDT Fri Sep 8 2023
...Strong thunderstorms will impact portions of Windham, central
Tolland, southeastern Hartford, Worcester, west central Norfolk,
southeastern Hampshire, south central Middlesex, southeastern
Franklin, southeastern Hampden, west central Kent and western
Providence Counties through 730 PM EDT...
At 635 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Belchertown to Holland to near
Marlborough. Movement was east at 30 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Strong winds could cause minor damage such as downed
branches. Little to no impact from hail is expected.
Locations impacted include...
Worcester, Woonsocket, Shrewsbury, Glastonbury, Franklin, Milford,
Mansfield, Windham, Plainfield, Smithfield, Ludlow, Gardner,
Westborough, Grafton, Willimantic, Killingly, Holden, Webster,
Southbridge, and Bellingham.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when you hear thunder. Do not resume outdoor activities
until at least 30 minutes after the storm has passed.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern Connecticut...and western, central and northeastern
Massachusetts.
&&
LAT...LON 4215 7141 4164 7180 4163 7196 4166 7216
4171 7224 4169 7227 4167 7227 4164 7233
4160 7234 4159 7239 4160 7241 4158 7246
4165 7252 4201 7224 4227 7251 4259 7194
TIME...MOT...LOC 2235Z 257DEG 26KT 4229 7246 4203 7216 4161 7248
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
KPLocal storm report, Sep 8, 8:19 PM EDT, 37 minutes before
Preliminary Local Storm Report
National Weather Service Boston/Norton MA
819 PM EDT Fri Sep 8 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0706 PM Tstm Wnd Dmg 4 SSE Hubbardston 42.43N 71.98W
09/08/2023 Worcester MA Law Enforcement
Tree downed blocking Intervale Road by Rte
68. Time estimated from radar.
0721 PM Hail Sterling 42.43N 71.75W
09/08/2023 M1.00 inch Worcester MA Trained Spotter
0237 PM Tstm Wnd Dmg Concord 42.45N 71.35W
09/08/2023 Middlesex MA Amateur Radio
Numerous reports of trees downed across
town. Time estimated from radar.
0245 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Trained Spotter
Tree down on wires on Porter Road. Trees
down on house and through the window of a
home on Frederick Street.
0530 PM Tstm Wnd Dmg Northampton 42.33N 72.68W
09/08/2023 Hampshire MA Law Enforcement
Wires down on Jackson Street. Relayed by
amateur radio.
0530 PM Tstm Wnd Dmg Hatfield 42.37N 72.61W
09/08/2023 Hampshire MA Law Enforcement
Wires down on Elm Street. Relayed by amateur
radio.
0557 PM Lightning Amherst 42.38N 72.52W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree down due to lightning on Meadow Street.
Relayed by amateur radio.
0610 PM Tstm Wnd Dmg Northampton 42.33N 72.68W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree down on a car on Sylvester Road. Person
was trapped, but not injured. Relayed by
amateur radio.
0615 PM Tstm Wnd Dmg 2 SW Amherst 42.36N 72.55W
09/08/2023 Hampshire MA Public
Report from mPING: 1-inch tree limbs broken;
Shingles blown off.
0620 PM Tstm Wnd Dmg Hatfield 42.37N 72.61W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree uprooted and wires down on Dwight
Street. Relayed by amateur radio.
0638 PM Flood 2 NW Amherst 42.39N 72.55W
09/08/2023 Hampshire MA Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0654 PM Flood 2 WNW Amherst 42.39N 72.55W
09/08/2023 Hampshire MA Public
River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0656 PM Flood 2 W North Amherst 42.39N 72.56W
09/08/2023 Hampshire MA Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0657 PM Flash Flood 3 WSW North Amherst 42.40N 72.57W
09/08/2023 Hampshire MA Public
Street/road flooding; Street/road closed;
Vehicles stranded.
0545 PM Tstm Wnd Dmg Granville 42.07N 72.87W
09/08/2023 Hampden MA Fire Dept/Rescue
Tree and Wires down on Granby Road. Relayed
by amateur radio.
0625 PM Tstm Wnd Dmg Brimfield 42.12N 72.20W
09/08/2023 Hampden MA Law Enforcement
Tree down on Warren Road. Relayed by amateur
radio.
0620 PM Flood Greenfield 42.59N 72.60W
09/08/2023 Franklin MA Fire Dept/Rescue
Arch Street flooded and impassable. Relayed
by amateur radio.
0622 PM Flash Flood 1 ENE Greenfield 42.59N 72.59W
09/08/2023 Franklin MA Public
Report from mPING: Street/road flooding;
Street/road closed; Vehicles stranded.
0300 PM Tstm Wnd Dmg North Andover 42.66N 71.14W
09/08/2023 Essex MA Law Enforcement
Multiple reports of Trees and wires down
across town. Tree down with limbs on the
roof of a home with 2 broken windows on
Beacon Hill Boulevard.
0610 PM Tstm Wnd Dmg Vernon 41.82N 72.48W
09/08/2023 Tolland CT Law Enforcement
Tree down on house on Brookside Lane and a
tree downed on a vehicle on High Street.
Time estimated from radar.
0610 PM Tstm Wnd Dmg Enfield 41.97N 72.57W
09/08/2023 Hartford CT Amateur Radio
Trees and wires down on School Street and
Nonotuck Street. Relayed by amateur radio.
&&Local storm report, Sep 8, 8:20 PM EDT, 36 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
820 PM EDT Fri Sep 8 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0721 PM Hail Sterling 42.43N 71.75W
09/08/2023 M1.00 inch Worcester MA Trained Spotter
0706 PM Tstm Wnd Dmg 4 SSE Hubbardston 42.43N 71.98W
09/08/2023 Worcester MA Law Enforcement
Tree downed blocking Intervale Road by Rte
68. Time estimated from radar.
0657 PM Flash Flood 3 WSW North Amherst 42.40N 72.57W
09/08/2023 Hampshire MA Public
Street/road flooding; Street/road closed;
Vehicles stranded.
0656 PM Flood 2 W North Amherst 42.39N 72.56W
09/08/2023 Hampshire MA Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0654 PM Flood 2 WNW Amherst 42.39N 72.55W
09/08/2023 Hampshire MA Public
River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0638 PM Flood 2 NW Amherst 42.39N 72.55W
09/08/2023 Hampshire MA Public
Report from mPING: River/Creek overflowing;
Cropland/Yard/Basement Flooding.
0625 PM Tstm Wnd Dmg Brimfield 42.12N 72.20W
09/08/2023 Hampden MA Law Enforcement
Tree down on Warren Road. Relayed by amateur
radio.
0622 PM Flash Flood 1 ENE Greenfield 42.59N 72.59W
09/08/2023 Franklin MA Public
Report from mPING: Street/road flooding;
Street/road closed; Vehicles stranded.
0620 PM Tstm Wnd Dmg Hatfield 42.37N 72.61W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree uprooted and wires down on Dwight
Street. Relayed by amateur radio.
0620 PM Flood Greenfield 42.59N 72.60W
09/08/2023 Franklin MA Fire Dept/Rescue
Arch Street flooded and impassable. Relayed
by amateur radio.
0615 PM Tstm Wnd Dmg 2 SW Amherst 42.36N 72.55W
09/08/2023 Hampshire MA Public
Report from mPING: 1-inch tree limbs broken;
Shingles blown off.
0610 PM Tstm Wnd Dmg Northampton 42.33N 72.68W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree down on a car on Sylvester Road. Person
was trapped, but not injured. Relayed by
amateur radio.
0610 PM Tstm Wnd Dmg Vernon 41.82N 72.48W
09/08/2023 Tolland CT Law Enforcement
Tree down on house on Brookside Lane and a
tree downed on a vehicle on High Street.
Time estimated from radar.
0610 PM Tstm Wnd Dmg Enfield 41.97N 72.57W
09/08/2023 Hartford CT Amateur Radio
Trees and wires down on School Street and
Nonotuck Street. Relayed by amateur radio.
0557 PM Lightning Amherst 42.38N 72.52W
09/08/2023 Hampshire MA Fire Dept/Rescue
Tree down due to lightning on Meadow Street.
Relayed by amateur radio.
0545 PM Tstm Wnd Dmg Granville 42.07N 72.87W
09/08/2023 Hampden MA Fire Dept/Rescue
Tree and Wires down on Granby Road. Relayed
by amateur radio.
0530 PM Tstm Wnd Dmg Hatfield 42.37N 72.61W
09/08/2023 Hampshire MA Law Enforcement
Wires down on Elm Street. Relayed by amateur
radio.
0530 PM Tstm Wnd Dmg Northampton 42.33N 72.68W
09/08/2023 Hampshire MA Law Enforcement
Wires down on Jackson Street. Relayed by
amateur radio.
0340 PM Tstm Wnd Dmg Bernardston 42.67N 72.55W
09/08/2023 Franklin MA Law Enforcement
Tree and power lines down on Brattleboro
Road. Relayed by amateur radio.
0300 PM Tstm Wnd Dmg North Andover 42.66N 71.14W
09/08/2023 Essex MA Law Enforcement
Multiple reports of Trees and wires down
across town. Tree down with limbs on the
roof of a home with 2 broken windows on
Beacon Hill Boulevard.
0300 PM Tstm Wnd Dmg 1 WSW Lowell 42.63N 71.35W
09/08/2023 Middlesex MA Trained Spotter
In Lowell, there were wires down on
Monadnock Ave.
0300 PM Hail Andover 42.66N 71.14W
09/08/2023 M1.00 inch Essex MA Trained Spotter
0253 PM Tstm Wnd Dmg 1 E Lowell 42.64N 71.30W
09/08/2023 Middlesex MA Public
In Lowell wires were down on Rodgers St.
0245 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Trained Spotter
Tree down on wires on Porter Road. Trees
down on house and through the window of a
home on Frederick Street.
0245 PM Tstm Wnd Dmg Westford 42.58N 71.43W
09/08/2023 Middlesex MA Amateur Radio
tree down on Longmeadow Road.
0240 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Amateur Radio
Tree down on Park Road. Trees down on wires
on Mill Road, Boston Road and Concord Road.
0240 PM Tstm Wnd Dmg Acton 42.48N 71.47W
09/08/2023 Middlesex MA Trained Spotter
2 trees down on Newtown Road.
0240 PM Tstm Wnd Dmg Chelmsford 42.60N 71.37W
09/08/2023 Middlesex MA Public
Numerous trees down and snapped. Straight
line SW to NE after the heavy rainfall.
0237 PM Tstm Wnd Dmg Concord 42.45N 71.35W
09/08/2023 Middlesex MA Amateur Radio
Numerous reports of trees downed across
town. Time estimated from radar.
0230 PM Tstm Wnd Dmg Bolton 42.43N 71.60W
09/08/2023 Worcester MA Fire Dept/Rescue
5-6 trees snapped in a stright line along
Route 117/Main St.
0225 PM Tstm Wnd Dmg 1 S Acton 42.47N 71.46W
09/08/2023 Middlesex MA Trained Spotter
Multiple trees down with 12+ inch diameter
at Tuttle Drive and Lothrop Road.
0225 PM Tstm Wnd Dmg Acton 42.48N 71.47W
09/08/2023 Middlesex MA Trained Spotter
Multiple trees down along Central St.
Windsor Ave, Prospect Street and Main
Street.
0217 PM Tstm Wnd Dmg Westborough 42.27N 71.62W
09/08/2023 Worcester MA Amateur Radio
Tree down on a house on West Main Street.
Trees down on wires on West Main Street.
0215 PM Lightning Millbury 42.20N 71.76W
09/08/2023 Worcester MA Amateur Radio
House fire on Stone Road.
0215 PM Tstm Wnd Dmg Sutton 42.15N 71.77W
09/08/2023 Worcester MA Law Enforcement
Tree down across Blackstone Street and tree
down across Wheelock Road. Relayed by
Amateur Radio.
0213 PM Tstm Wnd Dmg Millbury 42.20N 71.76W
09/08/2023 Worcester MA Law Enforcement
Trees down on Riverlin Street. Relayed by
Amateur Radio.
0200 PM Tstm Wnd Dmg Dudley 42.05N 71.93W
09/08/2023 Worcester MA Fire Dept/Rescue
Laarge tree down on Blackmere Road. relayed
by Amateur Radio.
0157 PM Hail West Brookfield 42.24N 72.15W
09/08/2023 M1.00 inch Worcester MA Amateur Radio
Quarter size hail.
0155 PM Tstm Wnd Dmg Woodstock 41.95N 71.98W
09/08/2023 Windham CT Fire Dept/Rescue
Corrects previous tstm wnd dmg report from
Woodstock. Several trees down. Area of Dugg
Hill Road. Relayed by Amateur Radio.
0113 PM Hail Storrs 41.81N 72.26W
09/08/2023 M1.00 inch Tolland CT Trained Spotter
Reported by spotter at University of
Connecticut.
0100 PM Tstm Wnd Dmg Andover 41.73N 72.37W
09/08/2023 Tolland CT Fire Dept/Rescue
Corrects previous non-tstm wnd dmg report
from Andover. Corrects previous non-tstm wnd
dmg report from Andover. Tree and wires down
on Shoddy mill Road. relayed by Amateur
Radio.
0945 PM Tstm Wnd Dmg 1 NW Montague 42.55N 72.55W
09/07/2023 Franklin MA Law Enforcement
tree down at intersection of meadow rd and
south ferry rd in montague. relayed by
amateur radio.
0940 PM Tstm Wnd Dmg 2 SW Deerfield 42.53N 72.63W
09/07/2023 Franklin MA Fire Dept/Rescue
tree down on wires on stillwater rd in
deerfield. relayed by amateur radio.
0935 PM Tstm Wnd Dmg 3 WNW Hawley 42.58N 72.94W
09/07/2023 Franklin MA Fire Dept/Rescue
Tree down on West Hawley Rd in Hawley.
Relayed by amateur radio.
0930 PM Tstm Wnd Dmg 2 ESE Charlemont 42.63N 72.85W
09/07/2023 Franklin MA Law Enforcement
tree down blocking south river rd in
charlemont. relayed by amateur radio.
0930 PM Tstm Wnd Dmg 1 ENE Rowe 42.70N 72.89W
09/07/2023 Franklin MA Fire Dept/Rescue
Tree and wires downed on pond road in Rowe.
Relayed by amateur radio.
0928 PM Tstm Wnd Dmg 1 NW Russell 42.20N 72.87W
09/07/2023 Hampden MA Law Enforcement
Tree down near Dickinson Hill Rd in Russell.
Relayed by amateur radio.
0920 PM Tstm Wnd Dmg 3 NE Huntington 42.27N 72.85W
09/07/2023 Hampshire MA Law Enforcement
Tree down on County Rd in Huntington.
Relayed by amateur radio.
0915 PM Tstm Wnd Dmg 3 W Worthington 42.42N 73.00W
09/07/2023 Hampshire MA Law Enforcement
Corrects previous tstm wnd dmg report from 3
W Worthington. Tree down on powerlines near
Old North Rd in Worthington. Relayed by
amateur radio.
&&Special weather statement, Sep 8, 8:34 PM EDT, 22 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
834 PM EDT Fri Sep 8 2023
CTZ002-090130-
Hartford CT-
834 PM EDT Fri Sep 8 2023
...A strong thunderstorm will impact portions of central Hartford
County through 930 PM EDT...
At 834 PM EDT, Doppler radar was tracking a strong thunderstorm over
Naugatuck, moving northeast at 30 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Strong winds could cause minor damage such as downed
branches. Minor damage to outdoor objects is possible.
Locations impacted include...
Hartford, New Britain, West Hartford, Bristol, Manchester, East
Hartford, Southington, Glastonbury, Newington, Windsor, Wethersfield,
South Windsor, Farmington, Simsbury, Bloomfield, Berlin, Rocky Hill,
Avon, Plainville, and Windsor Locks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Get indoors when you hear thunder. Do not resume outdoor activities
until at least 30 minutes after the storm has passed.
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.
This storm may intensify and become severe. Stay tuned to your local
media for updates and possible warnings.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern Connecticut.
&&
LAT...LON 4198 7276 4180 7248 4158 7277 4157 7280
4155 7282 4157 7283 4157 7285 4155 7285
4156 7288 4156 7295 4163 7293 4164 7294
4164 7299 4173 7300
TIME...MOT...LOC 0034Z 219DEG 24KT 4151 7305
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
KPThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 8:34 PM EDT | Special Weather Statement | BOX | 56 min | |
| Sep 8, 9:54 PM EDT | Special Weather Statement | BOX | 66 min | |
| Sep 8, 10:39 PM EDT | Special Weather Statement | BOX | 51 min | |
| Sep 9, 3:38 PM EDT | Special Weather Statement | BOX | 67 min | |
| Sep 9, 4:25 PM EDT | Special Weather Statement | BOX | 65 min | |
| Sep 9, 4:40 PM EDT | Areal Flood Warning | BOX | Northeastern Connecticut Planning Region | 2 hr |
| Sep 9, 5:19 PM EDT | Special Weather Statement | BOX | 56 min | |
| Sep 9, 5:28 PM EDT | Special Weather Statement | BOX | 47 min | |
| Sep 9, 5:42 PM EDT | Special Weather Statement | BOX | 48 min | |
| Sep 9, 5:44 PM EDT | Special Weather Statement | BOX | 46 min | |
| Sep 9, 6:11 PM EDT | Special Weather Statement | BOX | 49 min | |
| Sep 9, 6:57 PM EDT | Special Weather Statement | BOX | 48 min | |
| Sep 9, 2:14 PM EDT | Special Weather Statement | BOX | Plymouth | 61 min |
| Sep 9, 3:11 PM EDT | Special Weather Statement | BOX | Norfolk, Suffolk | 49 min |
| Sep 9, 3:26 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk | 49 min |
| Sep 9, 3:35 PM EDT | Special Weather Statement | BOX | Franklin | 55 min |
| Sep 9, 4:04 PM EDT | Special Weather Statement | BOX | Essex | 56 min |
| Sep 9, 4:10 PM EDT | Special Weather Statement | BOX | Norfolk, Suffolk | 65 min |
| Sep 9, 4:13 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk, Plymouth | 47 min |
| Sep 9, 4:21 PM EDT | Areal Flood Warning | BOX | Franklin, Hampshire | 5 hr |
| Sep 9, 4:54 PM EDT | Special Weather Statement | BOX | Middlesex | 51 min |
| Sep 9, 4:56 PM EDT | Special Weather Statement | BOX | Essex | 49 min |
| Sep 9, 6:43 PM EDT | Special Weather Statement | BOX | Hampshire | 47 min |
| Sep 9, 6:54 PM EDT | Special Weather Statement | BOX | Middlesex | 66 min |
| Sep 9, 7:25 PM EDT | Special Weather Statement | BOX | Hampshire | 50 min |
| Sep 9, 7:28 PM EDT | Areal Flood Warning | BOX | Hampden, Hampshire | 3 hr |
| Sep 9, 7:40 PM EDT | Special Weather Statement | BOX | Hampden | 50 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 2023Severe Thunderstorm Warnings in Massachusetts, 2023Every severe thunderstorm 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.