Alert archive / Massachusetts / River Flood Watches in 2017

River Flood Watch 2, NWS Boston/Norton, MA

April 11, 2017Hampden County, Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this river flood watch at Apr 11, 2017, 1:17 PM EDT for Hampden County, Hampshire County, Massachusetts. It took effect at Apr 13, 2017, 4:10 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 11, 2017, 1:17 PM EDT (17:17 UTC)
In effect from
Apr 13, 2017, 4:10 AM EDT
Expired
Apr 12, 2017, 12:47 PM EDT
In force
Issued by
NWS Boston/Norton, MA
Flood severity
None

Counties Hampden County, MA, Hampshire County, MA

The radar

The Albany radar (KENX), 123 km from the middle of the area, began a volume at 17:19 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 Connecticut River at Northampton (NHMM3).

Action stage
110 ft
Minor stage
112 ft
Moderate stage
115 ft
Major stage
120 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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.

078 
WGUS61 KBOX 111717
FFABOX


BULLETIN...IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
117 PM EDT Tue Apr 11 2017

...The National Weather Service in Taunton, MA has issued a Flood 
Watch 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 At Thompsonville affecting Hartford and Hampden 
  Counties
  Connecticut River At Hartford affecting Hartford and Middlesex 
  Counties
  Connecticut River At Middle Haddam affecting Middlesex County


Near record warmth Tuesday, followed by continued unseasonable warmth 
on Wednesday will cause snow melt across the headwaters of the 
Connecticut River in Vermont and New Hampshire. This snow melt will 
translate south over the next 24 to 48 hours and may cause minor 
flooding along the lower Connecticut River in Massachusetts and 
Connecticut - namely from Montague to Middle Haddam. These river 
forecast points could rise to near or above flood stage sometime 
Thursday.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety Message...Observed river stages are courtesy of the U.S. 
Geological Survey and other cooperating agencies. Please stay tuned 
to NOAA Weather Radio or your local television or radio stations for 
the latest information on this river flood event.


&&

MAZ002>003-008-010-120517-
/O.NEW.KBOX.FL.A.0001.170413T0600Z-170413T2217Z/
/MNTM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
117 PM EDT Tue Apr 11 2017

The National Weather Service in Taunton, MA has issued a
* Flood Watch for
  The Connecticut River At Montague
* from late Wednesday night to Thursday evening.
* At 12:30 PM Tuesday the stage was 23.3 feet.
* Minor flooding is possible.
* Flood stage is 28.0 feet.
* Forecast...Flood stage may be reached by early Thursday morning.
* Impact...At 29.0 feet...Flooding of low lying areas is expected 
  primarily from Montague downstream through Sunderland and Whately.

$$

MAZ008-010>011-120516-
/O.NEW.KBOX.FL.A.0002.170413T0810Z-170414T1115Z/
/NHMM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
117 PM EDT Tue Apr 11 2017

The National Weather Service in Taunton, MA has issued a
* Flood Watch for
  The Connecticut River At Northampton
* from late Wednesday night to Friday morning.
* At 12:00 PM Tuesday the stage was 108.1 feet.
* Minor flooding is possible.
* Flood stage is 112.0 feet.
* Forecast...Flood stage may be reached by Thursday morning.
* Impact...At 113.0 feet...Minor flooding will affect portions of 
  Northampton in the vicinity of the Oxbow and Hadley along Aqua 
  Vitae Drive. Farming interests in Hatfield outside flood dike 
  protection will experience flooding.

$$

CTZ002-MAZ009-011-120516-
/O.NEW.KBOX.FL.A.0003.170414T0000Z-170414T0600Z/
/TMVC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
117 PM EDT Tue Apr 11 2017

The National Weather Service in Taunton, MA has issued a
* Flood Watch for
  The Connecticut River At Thompsonville
* from Thursday evening to late Thursday night.
* At 12:46 PM Tuesday the stage was 12.6 feet.
* Minor flooding is possible.
* Flood stage is 15.0 feet.
* Forecast...Flood stage may be reached by Thursday evening.
* Impact...At 15.0 feet...Lowland flooding will begin along the 
  Connecticut River near Thompsonville.

$$

CTZ002-007-120516-
/O.NEW.KBOX.FL.A.0004.170413T1800Z-000000T0000Z/
/HFDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
117 PM EDT Tue Apr 11 2017

The National Weather Service in Taunton, MA has issued a
* Flood Watch for
  The Connecticut River At Hartford
* from Thursday afternoon until further notice.
* At 12:30 PM Tuesday the stage was 13.4 feet.
* Minor flooding is possible.
* Flood stage is 16.0 feet.
* Forecast...Flood stage may be reached by Thursday early afternoon.
* Impact...At 18.0 feet...Flooding of low lying areas below Hartford 
  is expected, especially in areas that are outside of levee 
  protection. Flooding also affects low lying areas upstream of 
  Hartford, including a portion of Windsor where the Farmington River
  empties into the Connecticut River. Further downstream flooding is 
  expected in low lying sections along the Connecticut River from 
  Wethersfield and Glastonbury downstream through Cromwell, 
  Middletown and Portland. Boating interests should prepare for swift
  river flows.

$$

CTZ007-011-120516-
/O.NEW.KBOX.FL.A.0005.170414T0400Z-000000T0000Z/
/MHDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
117 PM EDT Tue Apr 11 2017

The National Weather Service in Taunton, MA has issued a
* Flood Watch for
  The Connecticut River At Middle Haddam
* from late Thursday night until further notice.
* At 12:55 PM Tuesday the stage was 6.2 feet.
* Minor flooding is possible.
* Flood stage is 7.0 feet.
* Forecast...Flood stage may be reached late Thursday night.
* Impact...At 7.0 feet...Flooding is likely in the vicinity of Meadow 
  Road, Route 17 A, in the Gildersleeve section of Portland. A portion
  of this roadway will likely be closed. This includes the Exchange 
  Club of Portland Fairgrounds. Boating interests should prepare for 
  a period of swift river flows during this period.

$$
3 follow-up statements
933 
WGUS61 KBOX 120407
FFABOX


BULLETIN...IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
1207 AM EDT Wed Apr 12 2017



...The Flood Watch continues 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 At Thompsonville affecting Hartford and Hampden 
  Counties
  Connecticut River At Hartford affecting Hartford and Middlesex 
  Counties
  Connecticut River At Middle Haddam affecting Middlesex County

Continued unseasonable warmth today and the last few days will cause
snow melt across the headwaters of the Connecticut River in Vermont 
and New Hampshire. This snow melt will translate south over the next 
24 to 48 hours and may cause minor flooding along the lower 
Connecticut River in Massachusetts and Connecticut - namely from 
Montague to Middle Haddam. These river forecast points could rise 
to near or above flood stage sometime Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety Message...Observed river stages are courtesy of the U.S. 
Geological Survey and other cooperating agencies. Please stay tuned 
to NOAA Weather Radio or your local television or radio stations for 
the latest information on this river flood event.


&&

MAZ002>003-008-010-121607-
/O.CON.KBOX.FL.A.0001.000000T0000Z-170413T2217Z/
/MNTM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1207 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Montague
* until Thursday evening.
* At 11:30 PM Tuesday the stage was 25.0 feet.
* Minor flooding is possible.
* Flood stage is 28.0 feet.
* Forecast...Flood stage may be reached by .
* Impact...At 29.0 feet...Flooding of low lying areas is expected 
  primarily from Montague downstream through Sunderland and Whately.

$$

MAZ008-010>011-121606-
/O.CON.KBOX.FL.A.0002.000000T0000Z-170414T1115Z/
/NHMM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1207 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Northampton
* until Friday morning.
* At 11:00 PM Tuesday the stage was 109.5 feet.
* Minor flooding is possible.
* Flood stage is 112.0 feet.
* Forecast...Flood stage may be reached by .
* Impact...At 112.0 feet...Lowland flooding is expected in and around 
  Northampton including low lying sections of the Oxbow. Minor 
  flooding affects Hadley along Aqua Vitae Drive. In Hatfield, 
  flooding is expected in the lowest lying sections, primarily 
  farming interests outside flood dike protection.

$$

CTZ002-MAZ009-011-121606-
/O.CON.KBOX.FL.A.0003.000000T0000Z-170414T0600Z/
/TMVC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1207 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Thompsonville
* until late Thursday night.
* At 11:30 PM Tuesday the stage was 13.1 feet.
* Minor flooding is possible.
* Flood stage is 15.0 feet.
* Forecast...Flood stage may be reached by .
* Impact...At 15.0 feet...Lowland flooding will begin along the 
  Connecticut River near Thompsonville.

$$

CTZ002-007-121606-
/O.CON.KBOX.FL.A.0004.170413T1600Z-000000T0000Z/
/HFDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1207 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Hartford
* from Thursday afternoon until further notice.
* At 11:30 PM Tuesday the stage was 13.6 feet.
* Minor flooding is possible.
* Flood stage is 16.0 feet.
* Forecast...Flood stage may be reached by tomorrow early afternoon.
* Impact...At 17.0 feet...Lowland flooding is expected along the 
  Connecticut River from Hartford through Wethersfield and 
  Glastonbury, primarily outside of levee protection. This will 
  affect several riverside roadways as well as several park and 
  recreational facilities. Further downstream flooding is expected in
  low lying sections along the Connecticut River from Wethersfield 
  and Glastonbury downstream through Cromwell, Middletown and 
  Portland.

$$

CTZ007-011-121606-
/O.CON.KBOX.FL.A.0005.170414T0330Z-000000T0000Z/
/MHDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1207 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Middle Haddam
* from Thursday evening until further notice.
* At 11:55 PM Tuesday the stage was 6.0 feet.
* Minor flooding is possible.
* Flood stage is 7.0 feet.
* Forecast...Flood stage may be reached by tomorrow late evening.
* Impact...At 8.0 feet...Flooding is expected in low lying sections 
  along the Connecticut River from Wethersfield and Glastonbury 
  downstream through Cromwell, Middletown and Portland. Boating 
  interests should prepare for a period of swift river flows.

$$
658 
WGUS61 KBOX 121340
FFABOX


BULLETIN...IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
940 AM EDT Wed Apr 12 2017

...The Flood Watch continues 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 At Thompsonville affecting Hartford and Hampden 
  Counties
  Connecticut River At Hartford affecting Hartford and Middlesex 
  Counties
  Connecticut River At Middle Haddam affecting Middlesex County


Near record warmth Tuesday, followed by continued unseasonable warmth 
today will cause snow melt across the headwaters of the 
Connecticut River in Vermont and New Hampshire. This snow melt will 
translate south over the next 24 to 48 hours and may cause minor 
flooding along the lower Connecticut River in Massachusetts and 
Connecticut. These river forecast points could rise to near or 
above flood stage sometime Thursday or Thursday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety Message...Observed river stages are courtesy of the U.S. 
Geological Survey and other cooperating agencies. Please stay tuned 
to NOAA Weather Radio or your local television or radio stations for 
the latest information on this river flood event.

&&

MAZ002>003-008-010-130140-
/O.CON.KBOX.FL.A.0001.000000T0000Z-170413T2217Z/
/MNTM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
940 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Montague
* until Thursday evening.
* At 8:30 AM Wednesday the stage was 24.3 feet.
* Minor flooding is possible.
* Flood stage is 28.0 feet.
* Forecast...Flood stage may be reached during Thursday.
* Impact...At 29.0 feet...Flooding of low lying areas is expected 
  primarily from Montague downstream through Sunderland and Whately.

$$

MAZ008-010>011-130140-
/O.CON.KBOX.FL.A.0002.000000T0000Z-170414T1115Z/
/NHMM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
940 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Northampton
* until Friday morning.
* At 9:00 AM Wednesday the stage was 110.0 feet.
* Minor flooding is possible.
* Flood stage is 112.0 feet.
* Forecast...Flood stage may be reached Thursday afternoon.
* Impact...At 112.0 feet...Lowland flooding is expected in and around 
  Northampton including low lying sections of the Oxbow. Minor 
  flooding affects Hadley along Aqua Vitae Drive. In Hatfield, 
  flooding is expected in the lowest lying sections, primarily 
  farming interests outside flood dike protection.

$$

CTZ002-MAZ009-011-130140-
/O.CON.KBOX.FL.A.0003.000000T0000Z-170414T0600Z/
/TMVC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
940 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Thompsonville
* until late Thursday night.
* At 8:30 AM Wednesday the stage was 13.6 feet.
* Minor flooding is possible.
* Flood stage is 15.0 feet.
* Forecast...Flood stage may be reached by Thursday evening.
* Impact...At 15.0 feet...Lowland flooding will begin along the 
  Connecticut River near Thompsonville.

$$

CTZ002-007-130140-
/O.CON.KBOX.FL.A.0004.170413T1600Z-000000T0000Z/
/HFDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
940 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Hartford
* from Thursday afternoon until further notice.
* At 8:46 AM Wednesday the stage was 14.3 feet.
* Minor flooding is possible.
* Flood stage is 16.0 feet.
* Forecast...Flood stage may be reached by tomorrow early afternoon.
* Impact...At 17.0 feet...Lowland flooding is expected along the 
  Connecticut River from Hartford through Wethersfield and 
  Glastonbury, primarily outside of levee protection. This will 
  affect several riverside roadways as well as several park and 
  recreational facilities. Further downstream flooding is expected in
  low lying sections along the Connecticut River from Wethersfield 
  and Glastonbury downstream through Cromwell, Middletown and 
  Portland.

$$

CTZ007-011-130140-
/O.CON.KBOX.FL.A.0005.170414T0330Z-000000T0000Z/
/MHDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
940 AM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Middle Haddam
* from Thursday evening until further notice.
* At  8:55 AM Wednesday the stage was 6.0 feet.
* Minor flooding is possible.
* Flood stage is 7.0 feet.
* Forecast...Flood stage may be reached by tomorrow late evening.
* Impact...At 8.0 feet...Flooding is expected in low lying sections 
  along the Connecticut River from Wethersfield and Glastonbury 
  downstream through Cromwell, Middletown and Portland. Boating 
  interests should prepare for a period of swift river flows.

$$
067 
WGUS61 KBOX 121647
FFABOX


BULLETIN...IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TAUNTON MA
1247 PM EDT Wed Apr 12 2017

...The Flood Watch is cancelled 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 At Thompsonville affecting Hartford and Hampden 
  Counties
  Connecticut River At Hartford affecting Hartford and Middlesex 
  Counties

...The Flood Watch continues for the following rivers in 
Connecticut...
  Connecticut River At Middle Haddam affecting Middlesex County

A considerable amount of snowmelt occurred in the headwaters of the Connecticut River across eastern Vermont and western New Hampshire. However, it is now likely that the Connecticut River will remain below flood stage for the majority of River Forecast Points in Massachusetts
and Connecticut. The exception to this is the Connecticut River at 
Middle Haddam, which could still reach flood stage and go into minor 
flood during Thursday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety Message...Observed river stages are courtesy of the U.S. 
Geological Survey and other cooperating agencies. Please stay tuned 
to NOAA Weather Radio or your local television or radio stations for 
the latest information on this river flood event.

&&

MAZ002>003-008-010-121717-
/O.CAN.KBOX.FL.A.0001.000000T0000Z-170413T2217Z/
/MNTM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1247 PM EDT Wed Apr 12 2017

The Flood Watch is cancelled for
  The Connecticut River At Montague
* At 11:30 AM Wednesday the stage was 24.4 feet.
* Forecast...The river is forecast to reach a maximum stage of 24.4 
  feet by Friday evening.

$$

MAZ008-010>011-121717-
/O.CAN.KBOX.FL.A.0002.000000T0000Z-170414T1115Z/
/NHMM3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1247 PM EDT Wed Apr 12 2017

The Flood Watch is cancelled for
  The Connecticut River At Northampton
* At 12:00 PM Wednesday the stage was 110.0 feet.
* Forecast...The river is forecast to reach a maximum stage of 110.2 
  feet by early Saturday morning.

$$

CTZ002-MAZ009-011-121717-
/O.CAN.KBOX.FL.A.0003.000000T0000Z-170414T0600Z/
/TMVC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1247 PM EDT Wed Apr 12 2017

The Flood Watch is cancelled for
  The Connecticut River At Thompsonville
* At 11:30 AM Wednesday the stage was 13.6 feet.
* Forecast...The river is forecast to reach a maximum stage of 13.7 
  feet by this afternoon, with a second crest near 13.6 feet during 
  Friday night.

$$

CTZ002-007-121717-
/O.CAN.KBOX.FL.A.0004.000000T0000Z-000000T0000Z/
/HFDC3.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1247 PM EDT Wed Apr 12 2017

The Flood Watch is cancelled for
  The Connecticut River At Hartford
* At 11:30 AM Wednesday the stage was 14.6 feet.
* Forecast...The river is forecast to reach a maximum stage of 15.0 
  feet by early Thursday.

$$

CTZ007-011-130447-
/O.CON.KBOX.FL.A.0005.000000T0000Z-000000T0000Z/
/MHDC3.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
1247 PM EDT Wed Apr 12 2017

The Flood Watch continues for
  The Connecticut River At Middle Haddam
* until further notice.
* At 11:55 AM Wednesday the stage was 6.1 feet.
* Minor flooding is possible.
* Flood stage is 7.0 feet.
* Forecast...Flood stage may be reached during Thursday night.
* Impact...At 7.0 feet...Flooding is likely in the vicinity of Meadow 
  Road, Route 17A, in the Gildersleeve section of Portland. A portion
  of this roadway will likely be closed. This includes the Exchange 
  Club of Portland Fairgrounds. Boating interests should prepare for 
  a period of swift river flows during this period.

$$

What forecasters said that day

The local office's own words before this river flood watch 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 watch went out at Apr 11, 10:13 AM EDT, 3 hours 4 minutes earlier.

Area forecast discussion, Apr 11, 10:13 AM EDT, 3 hours 4 minutes before
Area Forecast Discussion
National Weather Service Taunton MA
1013 AM EDT Tue Apr 11 2017

.SYNOPSIS...
Record high temperatures are expected this afternoon away from the
marine influence of the southeast New England coast.  An approaching
cold front may bring a few showers and isolated thunderstorms late
tonight with a better chance on Wednesday. Dry and seasonably
mild conditions will return for the end of the week followed by
a warming trend this weekend but unsettled weather at times.

&&

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

1000 AM Update...

Overall trend in the forecast remains on track for today. A few
sites across the Merrimack valley have already reached into the
70s. Locations across the south coast will remain on the cool
side as ocean temps are still in the 40s. Aside from warm temps,
high level clouds are beginning to stream into the area ahead of
next system to our west.

Previous discussion...

***Record warmth in many locations away from the south coast, Cape
and Islands this afternoon***

Upper level ridging off the southeast coast will result in another
day of anomalous warmth across most of southern New England.  850T
around +14C along with southwest flow, plenty of sunshine and a dry
atmosphere aloft will result in a super adiabatic atmosphere.  High
temps should soar into the middle 80s northwest of a Boston to
Providence line and may see a few upper 80s. Record highs will be
broken in some of these locations.

Meanwhile...southeast of a Boston to Providence line southwest winds
blowing off the cold ocean will result in cooler temps especially
near the south coast.  Winds should not be quite as gusty as
yesterday, so temps will probably get warmer than they did on
Monday. Thinking mainly 70s in the Providence to Taunton Corridor,
but probably still only in the lower 60s along the immediate south
coast, and not breaking 60 across the Islands.

The weather should remain dry across southern New England today.
Shortwave energy and deeper moisture for convection will remain to
our north and west given upper level ridging in place.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/...
***Low risk for a few strong thunderstorms Wednesday with the
highest risk across eastern MA/RI***

Tonight...

Overall, expect mainly dry weather along with unseasonably mild
temperatures.  There is a low risk that a few showers or perhaps a
thunderstorm survive in a weakened form into northwest MA this
evening.  Otherwise, a better shot for a few showers and perhaps a
thunderstorm toward daybreak in western MA/northern CT. This in
association with the approaching cold front.  Low temps will only be
in the 50s.  May also see some  patchy fog develop with increasing
dewpoints.

Wednesday...

A cold front will cross the region on Wednesday, likely with some
scattered showers and isolated thunderstorms.  Surface instability
will be limited given an abundance of clouds and timing of the
front.  However, relatively steep mid level lapse rates coupled with
50+ knots of 0 to 6 km shear there will be a low risk for a few
strong thunderstorms during the afternoon with perhaps localized
hail/gusty winds. While this is a low risk given limited
instability, greatest concern would be across eastern MA/RI. This is
something will have to watch closely, especially if the front slows
down a bit and we see more in the way of sunshine. High temps should
mainly be in the 60s to near 70, but it is possible some locations
get several degrees warmer if more sun is realized.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
Highlights...

* Dry and seasonably mild weather Thu/Fri
* Warming trend this weekend but unsettled weather at times

Overview...

Latest guidance in good agreement for much of the extended period
with progressive pattern. Mid level trof settles over New Eng for
the end of the week which will bring dry and somewhat cooler
weather, then central CONUS ridge builds east into the region during
the weekend with warmer temps. Warm advection will be accompanied by
some shower activity sometime late Sat into Sun. Then next northern
stream trof moves into SE Canada with attending cold fropa bringing
cooler temps early next week.

Details...

Wednesday night into Friday...

Cold front will be moving off the coast by Wed evening. Low risk of
a leftover shower Cape/Islands early Wed evening, otherwise dry
weather expected into Fri as high pres builds east from the Great
lakes and into New Eng by Fri. A period of gusty post-frontal NW
winds expected Wed night into Thu then diminishing wind becoming
light into Fri as the high settles over the region.

Cooler temps Thu but still a bit above normal in the upper 50s to
lower 60s, cooler higher terrain. Similar temps Fri although
seabreezes likely which will keep coastal locations a bit cooler.

Saturday into Sunday...

High pres moves offshore with developing warm advection bringing a
few showers sometime late Sat into Sat night. Latest guidance
including GFS/ECMWF/GGEM indicates warm sector airmass overspreads
SNE on Sunday as warm front lifts to north and east. Mid level
drying should bring some sunshine with the potential for a pretty
warm day. 850 mb temps 12-13C which would support highs into the
upper 70s and lower 80s away from the south coast. Still a day 5
forecast so we trended the temps higher but it may not be warm
enough. Some of the models indicating CAPES up to 1000 J/kg Sun so a
few showers/t-storms possible, especially interior as airmass
destabilizes.

Monday...

Cold front expected to move through Sun night with dry NW flow
following for Mon. Cooler air lagging behind the front so temps
should reach well into the 60s.

&&

.AVIATION /14Z TUESDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

Short Term /through Wednesday/...

Today...High confidence in VFR conditions.  Southwest wind gusts
around 20 knots develop this afternoon.

Tonight...Moderate confidence.  VFR conditions probably dominate.
However, increasing risk for some lower cigs/vsbys along with
a few showers after midnight.

Wednesday...Moderate confidence. VFR conditions probably
dominate but may see lower conditions in scattered showers and
isolated thunderstorms.

KBOS Terminal...High confidence in TAF. Slight chance in
afternoon thunder tomorrow.

KBDL Terminal...High confidence in TAF.

Outlook /Wednesday Night through Saturday/...

Wednesday night through Friday...High confidence. Mainly VFR. W/NW
gusts to 20-25 kt Wed night into Thu.

Saturday...Moderate confidence. Areas of MVFR possible in scattered
showers late Sat into Sat night. Gusty SW winds developing in the
afternoon.

&&

.MARINE...
Forecaster Confidence Levels...

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

Today...Moderate to high confidence. Southwest wind gusts
reaching into the lower 20 knots are possible near shore this
afternoon. Long persistent southwest fetch may yield brief
marginal 5 foot seas across our southern most outer-waters, but
overall feel conditions were too marginal to hoist any small
craft headlines.

Tonight and Wednesday...Moderate to high confidence.  Winds and seas
will generally remain below small craft thresholds, other than
perhaps some brief marginal 5 foot seas across our southern most
outer-waters.  No headlines planned at this time.  A few near shore
thunderstorms will be possible Wednesday afternoon.

Outlook /Wednesday Night through Saturday/...

Wednesday night and Thursday...Moderate confidence. A period of west
gusts to 25 kt possible late Wed night into early Thu.

Friday...High confidence. Light winds becoming locally onshore
10-15 kt over the nearshore waters as seabreezes develop.

Saturday...Moderate confidence. Increasing SW winds with SCA gusts
possible in the afternoon and evening.

&&

.FIRE WEATHER...
Today...

High temps will reach into the middle to even upper 80s northwest of
a Boston to Providence line this afternoon.  This will result in
minimum afternoon relative humidity values between 25 and 30
percent.  Winds not quite as gusty as yesterday, but should see some
20 to 25 mph gusts develop this afternoon.  Will continue the
special weather statement for elevated fire spread potential later
this morning and afternoon.

&&

.HYDROLOGY...
All river flood warnings have now been canceled as river levels have
receded below flood stage. Will have to watch some locations on the
CT River later in the week, as snow melt in northern New England may
result in some more minor flooding.  Too early to issue any
additional warnings at this time.

The following web site has more details on the river levels:

https:/water.weather.gov/ahps2/index.php?wfo=box

&&

.CLIMATE...
Record high temperatures for Today, April 11th:

BOS	 78/1955
PVD	 79/1955
BDL	 79/1955
ORH	 80/1945

Record high min temps for Tuesday April 11th:

BOS   54/1915
PVD   52/1915
BDL   52/1915
ORH   52/1915

&&

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

&&

SYNOPSIS...KJC/Frank
NEAR TERM...Frank/Dunten
SHORT TERM...Frank
LONG TERM...KJC
AVIATION...KJC/Frank
MARINE...KJC/Frank
FIRE WEATHER...
HYDROLOGY...
CLIMATE...
Hazardous weather outlook, Apr 11, 4:15 AM EDT, 9 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Taunton MA
415 AM EDT Tue Apr 11 2017

CTZ002>004-MAZ002>024-026-RIZ001>008-120815-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA-
Western Essex MA-Eastern Essex MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-Western Norfolk MA-Southeast Middlesex MA-
Suffolk MA-Eastern Norfolk MA-Northern Bristol MA-
Western Plymouth MA-Eastern Plymouth MA-Southern Bristol MA-
Southern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
415 AM EDT Tue Apr 11 2017

This Hazardous Weather Outlook is for northern Connecticut, all of
Massachusetts except Berkshire County, and Rhode Island.

.DAY ONE...Today and Tonight.

There will be a continued elevated fire weather potential today, as
stated by fire weather officials.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a low risk for a few strong thunderstorms with hail and
gusty winds on Wednesday, with best chance across eastern MA and
Rhode Island.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-120815-
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-
415 AM EDT Tue Apr 11 2017

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...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 1:17 PM EDTRiver Flood WatchBOXFranklin, Hampshire24 hr
Apr 11, 1:17 PM EDTRiver Flood WatchBOXHampden24 hr

Nearby

River Flood Watches in Massachusetts, 2017Every river flood watch in 2017

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.