Alert archive / Massachusetts / River Flood Warnings in 2023

River Flood Warning 13, NWS Boston/Norton, MA

July 10, 2023Franklin County, Massachusetts

NWS Boston/Norton, MA issued this river flood warning at Jul 10, 2023, 12:52 PM EDT for Franklin County, Massachusetts. It was in force for 25 hr.

The area

The outline as issued.

The facts

Issued
Jul 10, 2023, 12:52 PM EDT (16:52 UTC)
Expired
Jul 11, 2023, 1:33 PM EDT
In force
25 hr
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
Minor

County Franklin County, MA

The radar

The Albany radar (KENX), 114 km from the middle of the area, began a volume at 16:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The river

Written for the forecast point Deerfield River at West Deerfield (WDEM3). The gauge peaked at 12.26 ft at Jul 10, 2023, 11:00 PM EDT.

actionminormoderate51007/1007/1107/12
Action stage
8 ft
Minor stage
9 ft
Moderate stage
12 ft
Major stage
16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01170000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

972 
WGUS41 KBOX 101652
FLWBOX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Boston/Norton MA
1252 PM EDT Mon Jul 10 2023

...The National Weather Service in Boston/Norton MA has issued a 
Flood Warning for the following rivers in Massachusetts...
Connecticut...

  Connecticut River At Montague affecting Franklin and Hampshire 
  Counties.

  Connecticut River At Northampton affecting Hampden and Hampshire 
  Counties.

  Connecticut River ABOVE Holyoke Dam affecting Hampden County.

  Connecticut River Below Holyoke affecting Hampden County.

  Farmington River At Unionville affecting Hartford County.

  Farmington River At Simsbury affecting Hartford County.

  West Deerfield River AT West Deerfield affecting Franklin County.



For the Connecticut River...including Montague, Northampton, Holyoke 
Dam, Holyoke, Springfield, Thompsonville, Hartford, Middle Haddam...
Moderate flooding is forecast.
For the Farmington River...including Unionville, Simsbury, 
Tariffville...Minor flooding is forecast.
For the Deerfield River...including Charlemont, West Deerfield...
Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight at 100 AM EDT.

&&

MAC011-110500-
/O.NEW.KBOX.FL.W.0013.230710T1652Z-230711T0946Z/
/WDEM3.1.ER.230710T1606Z.230710T1800Z.230711T0345Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO LATE TONIGHT...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...West Deerfield River at West Deerfield.

* WHEN...From this afternoon to late tonight.

* IMPACTS...At 9.5 feet, The Deerfield River oversrpeads some of the 
  lowest lying farmland in the Deerfield area.  Floodwaters inundate 
  a portion of Pogues Hole Road. Also lowest lying recreational 
  fields and parking lots nearby the river start to flood.

* ADDITIONAL DETAILS...
  - At 12:32 PM EDT Monday the stage was 9.2 feet.
  - Bankfull stage is 25.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 12:32 PM EDT Monday was 9.7 feet.
  - Forecast...The river is expected to rise to a crest of 10.0
    feet this afternoon. It will then fall below flood stage late
    this evening.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.0 feet on 03/24/1953.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4264 7272 4258 7265 4260 7257 4249 7261
      4260 7277


$$

CTC003-110500-
/O.NEW.KBOX.FL.W.0014.230710T1800Z-230711T1320Z/
/UNVC3.1.ER.230710T1800Z.230711T0000Z.230711T0720Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT UNTIL LATE TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Farmington River at Unionville.

* WHEN...Until late tomorrow morning.

* IMPACTS...At 12.0 feet, Minor flooding of lowland areas along the 
  river is expected, and may include lowest lying homes and 
  businesses along Route 4.

* ADDITIONAL DETAILS...
  - At 12:30 PM EDT Monday the stage was 11.8 feet.
  - Bankfull stage is 12.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 12.8 feet this evening. It will
    then fall below flood stage late tonight.
  - Flood stage is 12.0 feet.
  - Flood History...This crest compares to a previous crest of
    12.8 feet on 09/08/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4180 7298 4190 7293 4178 7286 4175 7278
      4168 7285


$$

MAC011-015-110500-
/O.NEW.KBOX.FL.W.0015.230711T0024Z-230713T0633Z/
/MNTM3.2.ER.230711T0024Z.230712T0000Z.230713T0032Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM THIS EVENING TO EARLY THURSDAY 
MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River at Montague.

* WHEN...From this evening to early Thursday morning.

* IMPACTS...At 35.0 feet, Flooding will expand into portions of 
  Montague and Greenfield downstream through Sunderland and Whately. 
  Some residential areas may become inundated and localized road 
  closures may be needed.

* ADDITIONAL DETAILS...
  - At 12:30 PM EDT Monday the stage was 21.1 feet.
  - Bankfull stage is 28.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 35.3 feet tomorrow evening. It
    will then fall below flood stage Wednesday evening.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    35.4 feet on 03/28/1953.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4273 7261 4273 7240 4243 7246 4242 7270


$$

MAC013-015-110500-
/O.NEW.KBOX.FL.W.0016.230711T0818Z-000000T0000Z/
/NHMM3.2.ER.230711T0818Z.230712T0600Z.000000T0000Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM LATE TONIGHT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River at Northampton.

* WHEN...From late tonight until further notice.

* IMPACTS...At 118.0 feet, Flooding spreads across sections of 
  Hatfield, Hadley, Northampton, Easthampton and South Hadley. 
  Should evacuations be required, follow the directions of local 
  officials and head to higher ground quickly. Farming interests 
  will be significantly impacted in the Pioneer Valley as flood 
  waters continue to rise.

* ADDITIONAL DETAILS...
  - At 12:00 PM EDT Monday the stage was 104.9 feet.
  - Bankfull stage is 112.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tonight and continue rising to a crest of 117.6 feet
    early Wednesday morning.
  - Flood stage is 112.0 feet.
  - Flood History...This crest compares to a previous crest of
    117.6 feet on 03/29/1953.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4228 7270 4242 7270 4243 7246 4227 7252


$$

MAC013-110500-
/O.NEW.KBOX.FL.W.0017.230711T0834Z-230713T0712Z/
/HLUM3.2.ER.230711T0834Z.230712T0000Z.230713T0112Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM LATE TONIGHT TO EARLY THURSDAY 
MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River above Holyoke Dam.

* WHEN...From late tonight to early Thursday morning.

* ADDITIONAL DETAILS...
  - At 6:59 AM EDT Monday the stage was 4.0 feet.
  - Bankfull stage is 9.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tonight to a crest of 11.1 feet tomorrow evening. It
    will then fall below flood stage late Wednesday evening.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    11.1 feet on 03/24/1903.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4221 7269 4228 7270 4227 7252 4220 7252


$$

CTC003-110500-
/O.NEW.KBOX.FL.W.0018.230711T1106Z-230712T1536Z/
/SIMC3.1.ER.230711T1106Z.230712T0000Z.230712T0936Z.NO/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM TUESDAY MORNING TO LATE WEDNESDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Farmington River at Simsbury.

* WHEN...From Tuesday morning to late Wednesday morning.

* IMPACTS...At 13.0 feet, Flooding affects Old Farms and Tolliston 
  Roads in Avon, Meadow Road in Farmington, and Nod, Riverside, and 
  Terrys Plain Roads in Simsbury. Route 315 in Simsbury is also 
  impacted. Flooding spreads into Plantation Country Club and 
  adjoining Town Farm Road in Simsbury. Also, flooding will approach 
  the Paine Boathouse.

* ADDITIONAL DETAILS...
  - At 12:30 PM EDT Monday the stage was 6.6 feet.
  - Bankfull stage is 12.0 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 13.3 feet tomorrow evening. It
    will then fall below flood stage early Wednesday morning.
  - Flood stage is 12.0 feet.
  - Flood History...This crest compares to a previous crest of
    13.3 feet on 09/17/1999.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4175 7279 4178 7286 4190 7283 4187 7273


$$

MAC013-110500-
/O.NEW.KBOX.FL.W.0019.230711T1256Z-230712T2323Z/
/HLYM3.1.ER.230711T1256Z.230712T0600Z.230712T1722Z.UU/
1252 PM EDT Mon Jul 10 2023

...FLOOD WARNING IN EFFECT FROM TUESDAY MORNING TO WEDNESDAY 
EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River below Holyoke.

* WHEN...From Tuesday morning to Wednesday evening.

* IMPACTS...At 29.0 feet, Flooding will continue to spead across low 
  lying areas from Holyoke south through Agawam. Inundation of areas 
  which are outside of local levee protection is likely.

* ADDITIONAL DETAILS...
  - At 12:30 PM EDT Monday the stage was 12.6 feet.
  - Bankfull stage is 26.5 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 29.1 feet early Wednesday
    morning. It will then fall below flood stage early Wednesday
    afternoon.
  - Flood stage is 26.5 feet.
  - Flood History...This crest compares to a previous crest of
    27.7 feet on 08/30/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4212 7268 4221 7269 4220 7252 4213 7253


$$

BL & AED
4 follow-up statements
861 
WGUS81 KBOX 110049
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
849 PM EDT Mon Jul 10 2023

...The Flood Warning is extended for the following rivers in 
Massachusetts...

  West Deerfield River AT West Deerfield affecting Franklin County.



For the Deerfield River...including West Deerfield...Minor flooding 
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Tuesday morning at 830 AM EDT.

&&

MAC011-111230-
/O.EXT.KBOX.FL.W.0013.000000T0000Z-230711T1230Z/
/WDEM3.1.ER.230710T1606Z.230711T0600Z.230711T1312Z.NO/
849 PM EDT Mon Jul 10 2023

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...West Deerfield River at West Deerfield.

* WHEN...Until tomorrow morning.

* IMPACTS...At 11.0 feet, Portions of Stillwater Rd near I-91, 
  Pogues Hole Rd, Round Pond Rd and Broughams Pond Rd are inundated. 
  Floodwaters encroach on Little Meadow Rd. Also lowest lying 
  recreational fields and some adjacent parking lots close to the 
  Deerfield River are inundated. Flooding occurs along farmland and 
  some farm houses close to the Deerfield River.

* ADDITIONAL DETAILS...
  - At 8:31 PM EDT Monday the stage was 8.4 feet.
  - Bankfull stage is 25.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 11.0 feet just after midnight
    tonight. It will then fall below flood stage late tomorrow
    morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.9 feet on 10/20/1989.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4264 7272 4258 7265 4260 7257 4249 7261
      4260 7277


$$

KS
203 
WGUS81 KBOX 110207
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
1007 PM EDT Mon Jul 10 2023

...The Flood Warning continues for the following rivers in 
Massachusetts...Connecticut...

  Connecticut River At Montague affecting Hampshire and Franklin 
  Counties.

  Connecticut River Below Holyoke affecting Hampden County.

  Connecticut River At Northampton affecting Hampshire and Hampden 
  Counties.

  Connecticut River ABOVE Holyoke Dam affecting Hampden County.

  Connecticut River At Thompsonville affecting Hampden and Hartford 
  Counties.

  Connecticut River At Hartford affecting Middlesex and Hartford 
  Counties.

  Farmington River At Simsbury affecting Hartford County.

...The Flood Warning is extended for the following rivers in 
Massachusetts...

  Deerfield At Charlemont affecting Berkshire and Franklin Counties.

  West Deerfield River AT West Deerfield affecting Franklin County.



For the Connecticut River...including Montague, Northampton, Holyoke 
Dam, Holyoke, Springfield, Thompsonville, Hartford, Middle Haddam...
Moderate flooding is forecast.
For the Farmington River...including Unionville, Simsbury, 
Tariffville...Minor flooding is forecast.
For the Deerfield River...including Charlemont, West Deerfield...
Moderate flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

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

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued Tuesday morning at 1015 AM EDT.

&&

MAC003-011-111415-
/O.EXT.KBOX.FL.W.0020.000000T0000Z-230711T1602Z/
/CLMM3.2.ER.230710T1712Z.230711T0600Z.230711T1002Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...

* WHAT...Minor flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Deerfield at Charlemont.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 13.5 feet, In Charlemont, low lying structures off of 
  Zoar Road are inundated. Floodwaters inundate the lower section of 
  the Mohawk Park Campground. Larger swaths of farmland in 
  Charlemont become inundated.  Floodwaters encroach on lowest lying 
  structures off of Zoar Road, Route 2, East Hawley Road and West 
  Hawley Road.

* ADDITIONAL DETAILS...
  - At 9:30 PM EDT Monday the stage was 12.6 feet.
  - Bankfull stage is 12.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:30 PM EDT Monday was 12.9 feet.
  - Forecast...The river is expected to rise to a crest of 13.1
    feet just after midnight tonight. It will then fall below
    flood stage tomorrow morning.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    13.1 feet on 05/29/1984.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4272 7292 4264 7272 4259 7275 4263 7301
      4272 7299


$$

MAC011-015-111415-
/O.EXT.KBOX.FL.W.0015.000000T0000Z-230713T0632Z/
/MNTM3.2.ER.230710T2305Z.230712T0000Z.230713T0032Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY THURSDAY MORNING...

* WHAT...Minor flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Connecticut River at Montague.

* WHEN...Until early Thursday morning.

* IMPACTS...At 35.0 feet, Flooding will expand into portions of 
  Montague and Greenfield downstream through Sunderland and Whately. 
  Some residential areas may become inundated and localized road 
  closures may be needed.

* ADDITIONAL DETAILS...
  - At 9:30 PM EDT Monday the stage was 29.1 feet.
  - Bankfull stage is 28.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:30 PM EDT Monday was 29.1 feet.
  - Forecast...The river is expected to rise to a crest of 35.3
    feet tomorrow evening. It will then fall below flood stage
    Wednesday evening.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    35.4 feet on 03/28/1953.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4273 7261 4273 7240 4243 7246 4242 7270


$$

MAC011-111415-
/O.EXT.KBOX.FL.W.0013.000000T0000Z-230711T1912Z/
/WDEM3.1.ER.230710T1606Z.230711T0600Z.230711T1312Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...West Deerfield River at West Deerfield.

* WHEN...Until tomorrow afternoon.

* IMPACTS...At 11.0 feet, Portions of Stillwater Rd near I-91, 
  Pogues Hole Rd, Round Pond Rd and Broughams Pond Rd are inundated. 
  Floodwaters encroach on Little Meadow Rd. Also lowest lying 
  recreational fields and some adjacent parking lots close to the 
  Deerfield River are inundated. Flooding occurs along farmland and 
  some farm houses close to the Deerfield River.

* ADDITIONAL DETAILS...
  - At 9:46 PM EDT Monday the stage was 8.3 feet.
  - Bankfull stage is 25.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 11.0 feet just after midnight
    tonight. It will then fall below flood stage late tomorrow
    morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.9 feet on 10/20/1989.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4264 7272 4258 7265 4260 7257 4249 7261
      4260 7277


$$

MAC013-111415-
/O.EXT.KBOX.FL.W.0019.230711T1256Z-230712T2322Z/
/HLYM3.1.ER.230711T1256Z.230712T0600Z.230712T1722Z.UU/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING NOW IN EFFECT FROM TUESDAY MORNING TO WEDNESDAY 
EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River below Holyoke.

* WHEN...From Tuesday morning to Wednesday evening.

* IMPACTS...At 29.0 feet, Flooding will continue to spead across low 
  lying areas from Holyoke south through Agawam. Inundation of areas 
  which are outside of local levee protection is likely.

* ADDITIONAL DETAILS...
  - At 9:30 PM EDT Monday the stage was 17.4 feet.
  - Bankfull stage is 26.5 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 29.1 feet early Wednesday
    morning. It will then fall below flood stage early Wednesday
    afternoon.
  - Flood stage is 26.5 feet.
  - Flood History...This crest compares to a previous crest of
    27.7 feet on 08/30/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4212 7268 4221 7269 4220 7252 4213 7253


$$

MAC013-015-111415-
/O.CON.KBOX.FL.W.0016.230711T0818Z-000000T0000Z/
/NHMM3.2.ER.230711T0818Z.230712T0600Z.000000T0000Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING REMAINS IN EFFECT FROM LATE TONIGHT UNTIL FURTHER 
NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River at Northampton.

* WHEN...From late tonight until further notice.

* IMPACTS...At 118.0 feet, Flooding spreads across sections of 
  Hatfield, Hadley, Northampton, Easthampton and South Hadley. 
  Should evacuations be required, follow the directions of local 
  officials and head to higher ground quickly. Farming interests 
  will be significantly impacted in the Pioneer Valley as flood 
  waters continue to rise.

* ADDITIONAL DETAILS...
  - At 9:00 PM EDT Monday the stage was 109.1 feet.
  - Bankfull stage is 112.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tonight and continue rising to a crest of 117.6 feet
    early Wednesday morning.
  - Flood stage is 112.0 feet.
  - Flood History...This crest compares to a previous crest of
    117.6 feet on 03/29/1953.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4228 7270 4242 7270 4243 7246 4227 7252


$$

MAC013-111415-
/O.CON.KBOX.FL.W.0017.230711T0834Z-230713T0712Z/
/HLUM3.2.ER.230711T0834Z.230712T0000Z.230713T0112Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING REMAINS IN EFFECT FROM LATE TONIGHT TO EARLY 
THURSDAY MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River above Holyoke Dam.

* WHEN...From late tonight to early Thursday morning.

* ADDITIONAL DETAILS...
  - At 6:59 AM EDT Monday the stage was 4.0 feet.
  - Bankfull stage is 9.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tonight to a crest of 11.1 feet tomorrow evening. It
    will then fall below flood stage late Wednesday evening.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    11.1 feet on 03/24/1903.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4221 7269 4228 7270 4227 7252 4220 7252


$$

CTC003-MAC013-111415-
/O.CON.KBOX.FL.W.0021.230711T0945Z-000000T0000Z/
/TMVC3.2.ER.230711T0945Z.230712T0600Z.000000T0000Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING REMAINS IN EFFECT FROM LATE TONIGHT UNTIL FURTHER 
NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River at Thompsonville.

* WHEN...From late tonight until further notice.

* IMPACTS...At 18.0 feet, Significant and widespread flooding along 
  the river can be expected from the Massachusetts towns of Agawam 
  and Longmeadow, through the northern Connecticut towns of Suffield 
  and Enfield.

* ADDITIONAL DETAILS...
  - At 10:00 PM EDT Monday the stage was 13.0 feet.
  - Bankfull stage is 5.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tonight and continue rising to a crest of 17.7 feet
    early Wednesday morning.
  - Flood stage is 15.0 feet.
  - Flood History...This crest compares to a previous crest of
    17.8 feet on 03/15/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4180 7273 4204 7270 4203 7261 4204 7251
      4180 7259


$$

CTC003-111415-
/O.CON.KBOX.FL.W.0018.230711T1106Z-230712T1536Z/
/SIMC3.1.ER.230711T1106Z.230712T0000Z.230712T0936Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING REMAINS IN EFFECT FROM TUESDAY MORNING TO LATE 
WEDNESDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Farmington River at Simsbury.

* WHEN...From Tuesday morning to late Wednesday morning.

* IMPACTS...At 13.0 feet, Flooding affects Old Farms and Tolliston 
  Roads in Avon, Meadow Road in Farmington, and Nod, Riverside, and 
  Terrys Plain Roads in Simsbury. Route 315 in Simsbury is also 
  impacted. Flooding spreads into Plantation Country Club and 
  adjoining Town Farm Road in Simsbury. Also, flooding will approach 
  the Paine Boathouse.

* ADDITIONAL DETAILS...
  - At 9:31 PM EDT Monday the stage was 9.5 feet.
  - Bankfull stage is 12.0 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 13.3 feet tomorrow evening. It
    will then fall below flood stage early Wednesday morning.
  - Flood stage is 12.0 feet.
  - Flood History...This crest compares to a previous crest of
    13.3 feet on 09/17/1999.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4175 7279 4178 7286 4190 7283 4187 7273


$$

CTC003-007-111415-
/O.CON.KBOX.FL.W.0022.230711T1448Z-000000T0000Z/
/HFDC3.1.ER.230711T1448Z.230712T1800Z.000000T0000Z.NO/
1007 PM EDT Mon Jul 10 2023

...FLOOD WARNING REMAINS IN EFFECT FROM TUESDAY MORNING UNTIL 
FURTHER NOTICE...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River at Hartford.

* WHEN...From Tuesday morning until further notice.

* IMPACTS...At 23.0 feet, Flooding affects some residential areas 
  below Hartford through Rocky Hill, including some roadways. 
  Upstream of Hartford, flooding is likely to affect Windsor Locks, 
  East Windsor and Windsor. Should localized evacuations be 
  necessary, act quickly. Know alternate routes for travel in your 
  location should roads along the river become flooded and 
  impassable. Further downstream flooding increases through 
  Middletown and Portland to Old Saybrook. Some evacuations of low 
  lying areas may be needed.

* ADDITIONAL DETAILS...
  - At 9:30 PM EDT Monday the stage was 9.4 feet.
  - Bankfull stage is 16.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late tomorrow morning and continue rising to a crest of 23.2
    feet early Wednesday afternoon.
  - Flood stage is 16.0 feet.
  - Flood History...This crest compares to a previous crest of
    23.4 feet on 04/18/2007.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4163 7270 4180 7273 4180 7259 4164 7258
      4163 7263 4164 7263


$$

KS
605 
WGUS81 KBOX 111038
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
638 AM EDT Tue Jul 11 2023

...The Flood Warning continues for the following rivers in 
Connecticut...Massachusetts...

  Connecticut River At Thompsonville affecting Hampden and Hartford 
  Counties.

  Connecticut River ABOVE Holyoke Dam affecting Hampden County.

  Connecticut River At Northampton affecting Hampden and Hampshire 
  Counties.

  Connecticut River At Montague affecting Franklin and Hampshire 
  Counties.

  Connecticut River Below Holyoke affecting Hampden County.

  Connecticut River At Hartford affecting Hartford and Middlesex 
  Counties.

  Connecticut River At Middle Haddam affecting Middlesex County.

  Farmington River At Simsbury affecting Hartford County.

  West Deerfield River AT West Deerfield affecting Franklin County.



For the Connecticut River...including Holyoke, Middle Haddam, 
Hartford, Thompsonville, Montague, Holyoke Dam, Northampton...
Moderate flooding is forecast.
For the Deerfield River...including West Deerfield...Minor flooding 
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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

Additional information is available at www.weather.gov.

The next statement will be issued this afternoon at 315 PM EDT.

&&

CTC003-MAC013-112245-
/O.CON.KBOX.FL.W.0021.000000T0000Z-000000T0000Z/
/TMVC3.2.ER.230711T1050Z.230712T0600Z.230713T0300Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River at Thompsonville.

* WHEN...Until further notice.

* IMPACTS...At 17.0 feet, Flooding will become more widespread along 
  the Connecticut River from the Massachusetts towns of Agawam and 
  Longmeadow, through the northern Connecticut towns of Suffield and 
  Enfield.

* ADDITIONAL DETAILS...
  - At 5:30 AM EDT Tuesday the stage was 14.8 feet.
  - Bankfull stage is 5.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this morning to a crest of 17.2 feet just after midnight
    tonight. It will then fall below flood stage late tomorrow
    evening.
  - Flood stage is 15.0 feet.
  - Flood History...This crest compares to a previous crest of
    17.2 feet on 10/10/2005.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4180 7273 4204 7270 4203 7261 4204 7251
      4180 7259


$$

MAC013-112245-
/O.CON.KBOX.FL.W.0017.000000T0000Z-230713T0712Z/
/HLUM3.2.ER.230711T1102Z.230712T0000Z.230712T1054Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY THURSDAY MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Connecticut River above Holyoke Dam.

* WHEN...Until early Thursday morning.

* ADDITIONAL DETAILS...
  - At 6:59 AM EDT Monday the stage was 4.0 feet.
  - Bankfull stage is 9.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this morning to a crest of 10.4 feet this evening. It will
    then fall below flood stage tomorrow morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.4 feet on 08/30/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4221 7269 4228 7270 4227 7252 4220 7252


$$

MAC013-015-112245-
/O.CON.KBOX.FL.W.0016.000000T0000Z-000000T0000Z/
/NHMM3.2.ER.230711T0701Z.230712T0600Z.230713T0300Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Connecticut River at Northampton.

* WHEN...Until further notice.

* IMPACTS...At 117.0 feet, Flooding impacts a large portion of the 
  Oxbow in Northampton. Flooding associated with back water from the 
  Connecticut will continue to impact Hatfield. Flooding will 
  continue to worsen along the Mill River in Hatfield while flooding 
  begins to affect parts of Cronin Hill. Some streets may be closed 
  and some local evacuations may be required. Flooding will also 
  become more widespread throughout Northampton.

* ADDITIONAL DETAILS...
  - At 6:00 AM EDT Tuesday the stage was 113.1 feet.
  - Bankfull stage is 112.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 6:00 AM EDT Tuesday was 113.1 feet.
  - Forecast...The river is expected to rise to a crest of 116.9
    feet just after midnight tonight. It will then fall below
    flood stage late tomorrow evening.
  - Flood stage is 112.0 feet.
  - Flood History...This crest compares to a previous crest of
    117.2 feet on 08/30/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4228 7270 4242 7270 4243 7246 4227 7252


$$

MAC011-015-112245-
/O.CON.KBOX.FL.W.0015.000000T0000Z-230713T0632Z/
/MNTM3.2.ER.230710T2305Z.230711T1800Z.230712T1340Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY THURSDAY MORNING...

* WHAT...Minor flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Connecticut River at Montague.

* WHEN...Until early Thursday morning.

* IMPACTS...At 35.0 feet, Flooding will expand into portions of 
  Montague and Greenfield downstream through Sunderland and Whately. 
  Some residential areas may become inundated and localized road 
  closures may be needed.

* ADDITIONAL DETAILS...
  - At 6:01 AM EDT Tuesday the stage was 31.3 feet.
  - Bankfull stage is 28.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 6:01 AM EDT Tuesday was 31.3 feet.
  - Forecast...The river is expected to rise to a crest of 34.8
    feet this afternoon. It will then fall below flood stage late
    tomorrow morning.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    34.9 feet on 05/05/1940.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4273 7261 4273 7240 4243 7246 4242 7270


$$

MAC011-111915-
/O.CON.KBOX.FL.W.0013.000000T0000Z-230711T1912Z/
/WDEM3.1.ER.230710T1606Z.000000T0000Z.230711T1236Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE THIS AFTERNOON...

* WHAT...Minor flooding is forecast.

* WHERE...West Deerfield River at West Deerfield.

* WHEN...Until late this afternoon.

* IMPACTS...At 9.5 feet, The Deerfield River oversrpeads some of the 
  lowest lying farmland in the Deerfield area.  Floodwaters inundate 
  a portion of Pogues Hole Road. Also lowest lying recreational 
  fields and parking lots nearby the river start to flood.

* ADDITIONAL DETAILS...
  - At 6:16 AM EDT Tuesday the stage was 8.4 feet.
  - Bankfull stage is 25.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this morning to a crest of 9.1 feet this morning. It will
    then fall below flood stage this morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.1 feet on 08/19/1955.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4264 7272 4258 7265 4260 7257 4249 7261
      4260 7277


$$

CTC003-112245-
/O.CON.KBOX.FL.W.0018.230711T1106Z-230712T1536Z/
/SIMC3.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE TOMORROW MORNING...

* WHAT...No flooding is currently forecast.

* WHERE...Farmington River at Simsbury.

* WHEN...Until late tomorrow morning.

* IMPACTS...At 12.0 feet, Flooding begins on Riverside Road in 
  Simsbury. Flooding also begins along Old Bridge and Drake Hill 
  Roads.

* ADDITIONAL DETAILS...
  - At 5:30 AM EDT Tuesday the stage was 10.1 feet.
  - Bankfull stage is 12.0 feet.
  - Forecast...The river is expected to rise to a crest of 10.3
    feet this morning.
  - Flood stage is 12.0 feet.
  - Flood History...This crest compares to a previous crest of
    11.7 feet on 03/10/1998.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4175 7279 4178 7286 4190 7283 4187 7273


$$

MAC013-112245-
/O.CON.KBOX.FL.W.0019.230711T1256Z-230712T2322Z/
/HLYM3.1.ER.230711T1710Z.230712T0000Z.230712T0900Z.UU/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL TOMORROW EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River below Holyoke.

* WHEN...Until tomorrow evening.

* IMPACTS...At 29.0 feet, Flooding will continue to spead across low 
  lying areas from Holyoke south through Agawam. Inundation of areas 
  which are outside of local levee protection is likely.

* ADDITIONAL DETAILS...
  - At 5:46 AM EDT Tuesday the stage was 21.6 feet.
  - Bankfull stage is 26.5 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 28.8 feet this evening. It will
    then fall below flood stage late tonight.
  - Flood stage is 26.5 feet.
  - Flood History...This crest compares to a previous crest of
    27.7 feet on 08/30/2011.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4212 7268 4221 7269 4220 7252 4213 7253


$$

CTC003-007-112245-
/O.CON.KBOX.FL.W.0022.230711T1448Z-000000T0000Z/
/HFDC3.1.ER.230711T1700Z.230712T1400Z.000000T0000Z.NO/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT FROM THIS MORNING UNTIL FURTHER 
NOTICE...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River at Hartford.

* WHEN...From this morning until further notice.

* IMPACTS...At 22.0 feet, Flooding affects some residential areas 
  below Hartford through Rocky Hill, including some roadways. 
  Upstream of Hartford, flooding is likely to affect Windsor Locks, 
  East Windsor and Windsor. Should localized evacuations be 
  necessary, act quickly. Further downstream flooding will likely 
  result in the evacuation of low lying area along River Road in 
  Cromwell and Meadow Road in Portland. Flooding increases from 
  Middletown and Portland to the river mouth at Old Saybrook.

* ADDITIONAL DETAILS...
  - At 5:30 AM EDT Tuesday the stage was 12.8 feet.
  - Bankfull stage is 16.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon and continue rising to a crest of 21.9 feet
    late tomorrow morning.
  - Flood stage is 16.0 feet.
  - Flood History...This crest compares to a previous crest of
    22.0 feet on 04/13/1887.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4163 7270 4180 7273 4180 7259 4164 7258
      4163 7263 4164 7263


$$

CTC007-112245-
/O.CON.KBOX.FL.W.0023.230712T0100Z-000000T0000Z/
/MHDC3.1.ER.230712T0300Z.230713T0400Z.000000T0000Z.UU/
638 AM EDT Tue Jul 11 2023

...FLOOD WARNING REMAINS IN EFFECT FROM THIS EVENING UNTIL FURTHER 
NOTICE...

* WHAT...Minor flooding is forecast.

* WHERE...Connecticut River at Middle Haddam.

* WHEN...From this evening until further notice.

* IMPACTS...At 9.5 feet, Flooding closes most of Meadow Road, Route 
  17A, in the Gildersleeve section of Portland. Flooding impacts the 
  Middletown Marina and Meadow Farms. In Cromwell, portions of River 
  Road will be closed. In Rocky Hill, parts of Meadow Road will be 
  impassable for a time. Flooding continues along the river 
  southward through Essex.

* ADDITIONAL DETAILS...
  - At 5:55 AM EDT Tuesday the stage was 4.5 feet.
  - Bankfull stage is 7.0 feet.
  - Forecast...The river will rise above flood stage late this
    evening to 9.9 feet early Thursday morning. It will then fall
    Thursday evening. It will rise to 9.3 feet late Thursday
    evening. It will then fall again but remain above flood
    stage.
  - Flood stage is 7.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.1 feet on 04/28/2019.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4164 7269 4164 7258 4129 7225 4126 7239
      4141 7251 4156 7270


$$

BW
192 
WGUS81 KBOX 111733
FLSBOX

Flood Statement
National Weather Service Boston/Norton MA
133 PM EDT Tue Jul 11 2023

...The Flood Warning is cancelled for the following rivers in 
Massachusetts...

  West Deerfield River AT West Deerfield affecting Franklin County.



MAC011-111845-
/O.CAN.KBOX.FL.W.0013.000000T0000Z-230711T1733Z/
/WDEM3.1.ER.230710T1606Z.000000T0000Z.000000T0000Z.NO/
133 PM EDT Tue Jul 11 2023

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the West Deerfield River AT West Deerfield.

* ADDITIONAL DETAILS...
  - At 10:16 AM EDT Tuesday the stage was 6.9 feet.
  - Bankfull stage is 25.0 feet.
  - Forecast...The river is expected to fall to 4.3 feet Friday
    morning.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4264 7272 4258 7265 4260 7257 4249 7261
      4260 7277


$$

BL

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Jul 10, 9:44 AM EDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jul 10, 9:44 AM EDT, 3 hours 8 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
944 AM EDT Mon Jul 10 2023

.SYNOPSIS...
Widespread showers and scattered thunderstorms with heavy rainfall
will move across the region today. The highest risk for significant
flooding will be across far western New England. Showers will be
lifting to the north tonight. Drier weather Tuesday, then hot and
humid conditions return Wednesday. The dry weather pattern is brief,
with rain chances increasing through the end of the workweek.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
940 am update...

going forecast in pretty good shape. Made minor tweaks to the
hourly PoP progression based on current radar trends. Folded in
the HREF and Hi-ResARW which seemed to be the two models doing
the "better" job compared to current precipitation coverage.

Concern the next few hours revolves around the batch of moderate
to heavy rain that is moving into eastern CT as I type. Saw a
CoCoRaHS report out of New London county CT of over 4" in 90
minutes a little bit ago. Goes to show how efficient the
rainfall is even if the reflectivities aren't super high. Very
tropical/warm rain processes going on. This batch of rain should
continue to push NNE, so concerns for flooding will move along
with that. Particularly for the urban areas around PVD. Could
also be problems in Fall River as well as that area has problems
with just 1" of rain in a short time. We are closely monitoring
radar trends and MRMS/FLASH outputs to help with flooding
potential.

Currently some breaks in the clouds across CT, but given the
very tropical atmosphere (precipitable water values ranging from
1.9" to 2.1"), the little extra instability will lead to more
showers developing. Instability parameters not overly high, but
marginal enough that a few t-storms are possible especially
across CT, RI and into SE MA for the afternoon.

630 AM Update

Forecast remains on track. KBOX radar beginning to reveal
moderate to heavy rainfall across western MA and CT this
morning. Expect moderate to heavy rainfall to continue into the
afternoon. Radar reflectivity over Rhode Island is more of the
light to moderate category at this hour, but more intense
rainfall rates are forecast to develop over this area over the
next couple of hours. No flash flood warnings have been issued
at this time, but special weather statements are in effect for
most of Hartford county and the areas west of I-91 to the east
slopes of The Berkshires. We'll continue to monitor trends and
may issue flash flood warnings where appropriate. No changes
have been made to the forecast for today, see further details in
the previous discussion.

Previous Discussion

Highlights...

* Highest risk for flash flooding through the morning will be from
  the Berkshires to western CT

* Secondary maximum of heavy rainfall possible across RI

* Low risk for a few strong/severe storms

Quite an anomalous system for mid July with amplifying mid level
trough moving east from the Gt Lakes and closing off as it lifts
into central/northern New Eng tonight. Strong forcing for ascent
acting on tropical moisture plume will bring heavy rainfall to
portions of SNE today.

Hi-res and global guidance is in excellent agreement that the most
prolific rainfall from this storm will be across VT. However, will
see heavy rainfall amounts extending south across western New Eng.
Surface low off the mid Atlc coast with an inverted trough extending
to the north into SE NY. It appears this boundary will be a focus
for heavy rainfall through the morning as it moves slowly E into
western CT/MA. This is where the greatest risk for possible flash
flooding will be this morning, especially from the Berkshires to
western CT, mainly west of I-91 as heavy showers and embedded t-
storms blossom and move north across this area. HREF indicating
moderate probs of greater than 1"/hr rainfall rates in this
region.

Numerous showers and embedded t-storms will be moving east across
rest of SNE today as shortwave energy rotates around the base of the
trough and approaches from the SW and sfc low and boundary move
eastward. Multiple CAMs are suggesting a secondary heavy rainfall
max across RI today, which could produce street flooding and bring
about rapid rises of creeks and streams and fast responding rivers.
Locally heavy rainfall also expected in portions of eastern MA but
not expecting significant impacts in this area.

Regarding rainfall amounts, we expect the heaviest rain with
potential for storm total amounts of 2-4 inches and locally
higher amounts across the Berkshires to far western CT.
Elsewhere, generally 1 to 2 inches expected with less across SE
MA and especially Cape Cod, but locally 2+ inches possible
across portions of RI.

The other concern for today is the potential for a few strong to
severe t-storms. 0-6km shear is increasing to 30-35 kt but
instability may be a limiting factor. CAPES of 500-1000 J/kg are
expected, possibly a bit higher in western New Eng. If the higher
instability can be realized the potential exists for a few strong to
severe storms with wind the main concern. However, always have to be
watchful for spinups in tropical environments with increasing shear,
especially near boundaries. Low level wind field is weak and
helicity values are unimpressive, but 0-3km CAPE is decent and we
have a boundary which could locally enhance low level shear. CSU
machine learning probs are highlighting a very low TOR risk so will
have to closely monitor radar for rotation.

&&

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

Dry slot will be overspreading SNE from the south tonight leading to
showers tapering off from south to north this evening. Mid level low
lifts across central/northern New Eng and southern edge of the comma
head could keep showers going into the overnight across northern and
especially NW MA. Lows will be mostly in the 60s.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
Highlights...

* Mainly and very warm Tue

* Hot and sunny on Wednesday with somewhat drier conditions

* Unsettled weather and humidity returns on Thursday

Wednesday

A brief period of dry weather for southern New England on Wednesday
as a relatively dry air mass characterized by PWATs ranging from 1
to 1.25 inches which is relatively low for mid-July. This will
support abundant sunshine across southern New England on Wednesday
with the exception of some diurnal cu. 925 hPa temps near 25 Celsius
will support hot temperatures in the low 90s at the surface. With
dewpoints only in the mid to upper 60s, the heat index will only be
a degree or two higher on Wednesday afternoon. Wednesday definitely
looks to be the pick of the week for those who prefer sunshine.

Thursday and Friday

The dry spell is very short-lived as a moisture and humidity return
to southern New England on Thursday. Deep southwest flow will advect
of a plume of 1.75+ inch PWATs over the region. This will result in
increasing cloud cover Thursday morning into Thursday afternoon. As
an upper-level disturbance approaches from the west we may see some
showers and thunderstorms by the mid-afternoon across the western
areas before spreading east Thursday night into Friday. As short-
wave energy associated with this disturbance lifts northeast over
The Hudson River Valley Thursday night through Friday, southern New
England is likely to receive another round of substantial rainfall.
Won't dive into the where and how much just yet, but given soils are
likely to be saturated from tonight and tomorrows heavy rainfall
threat, we'll have to be on the lookout for flood/flash flood
potential as we approach the end of the week. Given favorable
antecedent conditions, WPC has placed portions of western MA and CT
in a marginal risk for excessive rainfall for the Thursday/Friday
time frame and a slight risk for the Friday/Saturday time frame.

Next Weekend

Broad cyclonic flow aloft with embedded short-waves will continue to
support shower/thunderstorm chances over The Northeast next weekend.
Details are vague at this time, so have leaned on NBM for guidance
which appropriately places chance PoPs across the region.

&&

.AVIATION /14Z MONDAY THROUGH FRIDAY/...
Forecast Confidence Levels:

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

Through 12z...

IFR-LIFR stratus and patchy fog. Showers and embedded t-storms
mainly focused across western MA and northern CT.

Today...Moderate confidence.

IFR-LIFR conditions with numerous showers and scattered
t-storms moving across SNE. Improving to MVFR in the CT valley
in the afternoon. Variable winds, mostly E/SE across eastern
New Eng and shifting to N in the CT valley during the afternoon.

Tonight...Moderate confidence.

Gradual improvement from MVFR/IFR to VFR from SW to NE as
showers lift to the north. Showers may linger across portion of
N/NW MA overnight. Variable winds shift to the W/NW late
overnight.

BOS Terminal...Moderate confidence. IFR-LIFR cigs persisting
through the day and may see vsbys drop to around 1 mile at
times. Widespread showers develop mid/late morning and can't
rule out a few embedded t-storms. Improving to MVFR then VFR
03-06z as winds shift to SW.

BDL Terminal...Moderate confidence. Lowering to IFR with
numerous showers and embedded t-storms through the morning,
improving to MVFR in the afternoon and VFR this evening.

Outlook /Tuesday through Friday/...

Tuesday: VFR. Breezy. Slight chance SHRA.

Tuesday Night through Wednesday: VFR.

Wednesday Night: VFR. Isolated SHRA.

Thursday: VFR. Scattered SHRA, isolated TSRA.

Thursday Night: Mainly VFR, with areas MVFR possible. Breezy.
Numerous SHRA, isolated TSRA.

Friday: Mainly MVFR, with local IFR possible. Breezy. Numerous
SHRA, isolated TSRA.

&&

.MARINE...
Forecaster Confidence Levels:

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

Tranquil boating conditions persist through Monday with light winds
and seas. The main impact will be areas of poor nighttime and
morning visibility in areas of fog which could be dense at
times. Showers and a few t-storms will also be moving into the
waters Monday on moving northward Monday night.

Outlook /Tuesday through Friday/...

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

Tuesday Night through Wednesday Night: Winds less than 25 kt.

Thursday: Winds less than 25 kt. Isolated rain showers.

Thursday Night through Friday: Winds less than 25 kt. Seas
locally approaching 5 ft. Scattered rain showers, isolated
thunderstorms.

&&

.HYDROLOGY...
Rivers: For the latest river stage levels and forecasts, see the
forecasts from the Northeast River Forecast. Larger rivers and
smaller streams are expected to rise through today in the face
of heavy rains. NERFC forecasts call for rises into the Minor
Flood Category on most of the Connecticut River basins later
Monday into Tuesday. We are most concerned about the
Connecticut, Deerfield, Westfield, and Farmington Rivers to
experience rises to near or over bankfull. Besides just local
rainfall amounts reaching the rivers, rains falling upriver in
the CT River basin in VT and NH will likely lead to additional
rises even after heavy rains have ended.

&&

.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...KJC/RM
NEAR TERM...KJC/RM/Nash
SHORT TERM...KJC
LONG TERM...Loconto/RM
AVIATION...KJC/Loconto
MARINE...KJC/Loconto
HYDROLOGY...Team BOX
Hazardous weather outlook, Jul 10, 4:10 AM EDT, 8 hours 42 minutes before
Hazardous Weather Outlook
National Weather Service Boston/Norton MA
410 AM EDT Mon Jul 10 2023

CTZ002>004-MAZ002>004-008>012-026-RIZ001>007-110815-
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-
410 AM 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...Today and 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-RIZ008-110815-
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-
410 AM EDT Mon Jul 10 2023

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-110815-
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-
410 AM EDT Mon Jul 10 2023

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

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

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

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

You can follow us on Twitter at
@NWSBoston

In the hours before

Local storm report, Jul 10, 10:34 AM EDT, 2 hours 18 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1034 AM EDT Mon Jul 10 2023

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

1017 AM     Flood            Douglas                 42.05N 71.73W
07/10/2023                   Worcester          MA   Amateur Radio

            Gilboa Road has significant street 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.

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.

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.

0834 AM     Flood            Chester                 42.28N 72.98W
07/10/2023                   Hampden            MA   Amateur Radio

            Blandford Road at Route 20 closed due to
            flooding.

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.

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.

&&
Local storm report, Jul 10, 11:04 AM EDT, 1 hour 48 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1104 AM EDT Mon Jul 10 2023

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

1017 AM     Flood            Douglas                 42.05N 71.73W
07/10/2023                   Worcester          MA   Amateur Radio

            Gilboa Road has significant street 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.

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.

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.

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.

0834 AM     Flood            Chester                 42.28N 72.98W
07/10/2023                   Hampden            MA   Amateur Radio

            Blandford Road at Route 20 closed due to
            flooding.

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.

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.

1025 AM     Flood            Ashfield                42.53N 72.78W
07/10/2023                   Franklin           MA   Law Enforcement

            Brrton Hill Road washed out. 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.

&&
Special weather statement, Jul 10, 11:38 AM EDT, 1 hour 14 minutes before
Special Weather Statement
National Weather Service Boston/Norton MA
1138 AM EDT Mon Jul 10 2023

MAZ005-012-013-017-020-RIZ001>007-101700-
Southern Worcester MA-Western Norfolk MA-Northern Bristol MA-
Southern Bristol MA-Central Middlesex County MA-
Northwest Providence RI-Bristol RI-Washington RI-Eastern Kent RI-
Western Kent RI-Newport RI-Southeast Providence RI-
1138 AM EDT Mon Jul 10 2023

...A strong thunderstorm will impact portions of southeastern
Worcester, Norfolk, south central Middlesex, Bristol, northeastern
Washington, Newport, eastern Kent, eastern Providence and Bristol
Counties with heavy rainfall through 100 PM EDT...

At 1136 AM EDT, Doppler radar was tracking a strong thunderstorm over
Cranston, moving north at 35 mph.

HAZARD...Minor flooding.

SOURCE...Radar indicated.

IMPACT...Minor nuisance flooding of typically flood prone areas near
         Providence and Fall River.

Locations impacted include...
Providence, Fall River, Warwick, Cranston, Pawtucket, Framingham,
Taunton, East Providence, Woonsocket, Coventry, Dartmouth,
Cumberland, Natick, North Providence, Franklin, West Warwick,
Needham, Johnston, North Attleborough and Norwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roads or underpasses. Avoid low lying
areas near small streams.

This storm may intensify and become severe. Stay tuned to your local
media for updates and possible warnings.

&&

LAT...LON 4147 7119 4162 7124 4171 7116 4172 7127
      4158 7133 4164 7135 4163 7133 4171 7129
      4179 7137 4165 7136 4169 7145 4168 7145
      4153 7136 4159 7142 4156 7144 4160 7153
      4230 7161 4225 7118 4152 7099
TIME...MOT...LOC 1536Z 186DEG 31KT 4180 7146

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

Dooley
Local storm report, Jul 10, 12:06 PM EDT, 46 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1206 PM EDT Mon Jul 10 2023

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

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.

1017 AM     Flood            Douglas                 42.05N 71.73W
07/10/2023                   Worcester          MA   Amateur Radio

            Gilboa Road has significant street flooding.

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.

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.

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.

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.

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.

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.

0834 AM     Flood            Chester                 42.28N 72.98W
07/10/2023                   Hampden            MA   Amateur Radio

            Blandford Road at Route 20 closed due to
            flooding.

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.

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.

1025 AM     Flood            Ashfield                42.53N 72.78W
07/10/2023                   Franklin           MA   Law Enforcement

            Brrton Hill Road washed out. 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.

&&
Local storm report, Jul 10, 12:36 PM EDT, 16 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1236 PM EDT Mon Jul 10 2023

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

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.

1017 AM     Flood            Douglas                 42.05N 71.73W
07/10/2023                   Worcester          MA   Amateur Radio

            Gilboa Road has significant street flooding.

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.

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.

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.

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.

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.

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.

0834 AM     Flood            Chester                 42.28N 72.98W
07/10/2023                   Hampden            MA   Amateur Radio

            Blandford Road at Route 20 closed due to
            flooding.

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.

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.

1025 AM     Flood            Ashfield                42.53N 72.78W
07/10/2023                   Franklin           MA   Law Enforcement

            Brrton Hill Road washed out. 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.

&&
Special weather statement, Jul 10, 12:51 PM EDT, 1 minute 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

Dooley

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 6:19 AM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire56 min
Jul 10, 7:14 AM EDTSpecial Weather StatementBOXBristol91 min
Jul 10, 7:22 AM EDTSpecial Weather StatementBOXFranklin, Hampden, Hampshire83 min
Jul 10, 8:30 AM EDTAreal Flood WarningBOXFranklin, Hampden, Hampshire5 hr
Jul 10, 8:50 AM EDTSpecial Weather StatementBOXBristol85 min
Jul 10, 10:29 AM EDTAreal Flood WarningBOXHampden, Hampshire, Middlesex, Worcester4 hr
Jul 10, 11:38 AM EDTSpecial Weather StatementBOXBristol, Norfolk82 min
Jul 10, 11:49 AM EDTAreal Flood WarningBOXBristol, Middlesex, Norfolk, Worcester3 hr
Jul 10, 11:53 AM EDTAreal Flood WarningBOXMiddlesex, Worcester3 hr
Jul 10, 12:45 PM EDTFlash Flood WarningBOXBristol2 hr
Jul 10, 12:51 PM EDTSpecial Weather StatementBOXBristol, Norfolk, Plymouth84 min
Jul 10, 12:52 PM EDTRiver Flood WarningBOXFranklin, Hampshire60 hr
Jul 10, 12:52 PM EDTRiver Flood WarningBOXHampden, Hampshire21 days
Jul 10, 12:52 PM EDTRiver Flood WarningBOXHampden62 hr
Jul 10, 12:52 PM EDTRiver Flood WarningBOXHampden40 hr
Jul 10, 2:24 PM EDTSpecial Weather StatementBOXEssex, Suffolk66 min
Jul 10, 2:38 PM EDTSpecial Weather StatementBOXFranklin37 min
Jul 10, 2:53 PM EDTRiver Flood WarningBOXBerkshire, Franklin13 hr
Jul 10, 3:24 PM EDTSpecial Weather StatementBOXMiddlesex, Norfolk, Worcester81 min
Jul 10, 4:24 PM EDTFlash Flood WarningBOXWorcester3 hr
Jul 10, 4:54 PM EDTFlash Flood WarningBOXWorcester2 hr
Jul 10, 5:30 PM EDTSpecial Weather StatementBOXMiddlesex60 min
Jul 10, 6:08 PM EDTRiver Flood WarningBOXHampden21 days

Nearby

River Flood Warnings in Massachusetts, 2023Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.