Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 395
NWS Storm Prediction Center Norman OK
1255 PM EDT Thu Jul 23 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Connecticut
Massachusetts
Downeast Maine
Southern New Hampshire
Rhode Island
Coastal Waters
* Effective this Thursday afternoon and evening from 1255 PM
until 800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Thunderstorms are expected to intensify this afternoon in
a warm, humid, and unstable air mass. The strongest storms will
pose a risk of damaging wind gusts and perhaps hail.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles northeast of
Augusta ME to 30 miles south of Worcester MA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
27025.
...Hart
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 395
NWS Storm Prediction Center Norman OK
1255 PM EDT Thu Jul 23 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Connecticut
Massachusetts
Downeast Maine
Southern New Hampshire
Rhode Island
Coastal Waters
* Effective this Thursday afternoon and evening from 1255 PM
until 800 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1 inch in diameter possible
SUMMARY...Thunderstorms are expected to intensify this afternoon in
a warm, humid, and unstable air mass. The strongest storms will
pose a risk of damaging wind gusts and perhaps hail.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles northeast of
Augusta ME to 30 miles south of Worcester MA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU5).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
27025.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 395 SEVERE TSTM CT MA ME NH RI CW 231655Z - 240000Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
25NE AUG/AUGUSTA ME/ - 30S ORH/WORCESTER MA/
..AVIATION COORDS.. 50NM E/W /29WSW BGR - 21WNW PVD/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27025.
LAT...LON 44576822 41837071 41837305 44577066
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 395 Status Report Messages:
STATUS REPORT #6 ON WW 395
VALID 232330Z - 240040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 E PSF TO
15 E BAF TO 20 S ORH TO 15 NNW PVD TO 10 ESE PVD TO 25 WSW ACK.
..COOK..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-240040-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
RIC003-007-240040-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 395
VALID 232255Z - 232340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NW PSF TO
15 ESE PSF TO 20 ENE BDL TO 20 SE ORH TO 20 ESE BOS TO 40 E BOS.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1324
..COOK..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-232340-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
MAC005-013-021-023-232340-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BRISTOL HAMPDEN NORFOLK
PLYMOUTH
$$
RIC003-007-232340-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
ANZ230-232340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BOSTON HARBOR
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 395
VALID 232145Z - 232240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SE LEB TO
50 S BHB.
..COOK..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-232240-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
MEC031-232240-
ME
. MAINE COUNTIES INCLUDED ARE
YORK
$$
MAC005-009-011-013-015-017-021-023-025-027-232240-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BRISTOL ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NORFOLK PLYMOUTH SUFFOLK
WORCESTER
$$
NHC001-005-011-013-015-017-232240-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
BELKNAP CHESHIRE HILLSBOROUGH
MERRIMACK ROCKINGHAM STRAFFORD
$$
RIC003-007-232240-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
ANZ154-230-251-232240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT
25 NM
BOSTON HARBOR
MASSACHUSETTS BAY AND IPSWICH BAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 395
VALID 232035Z - 232140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SW LCI TO
60 SE AUG.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1323
..DIAL..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-232140-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
MEC031-232140-
ME
. MAINE COUNTIES INCLUDED ARE
YORK
$$
MAC005-009-011-013-015-017-021-023-025-027-232140-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BRISTOL ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NORFOLK PLYMOUTH SUFFOLK
WORCESTER
$$
NHC001-005-011-013-015-017-232140-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
BELKNAP CHESHIRE HILLSBOROUGH
MERRIMACK ROCKINGHAM STRAFFORD
$$
RIC003-007-232140-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
ANZ154-230-251-232140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT
25 NM
BOSTON HARBOR
MASSACHUSETTS BAY AND IPSWICH BAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 395
VALID 231945Z - 232040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DIAL..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-232040-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
MEC001-005-011-013-015-023-027-031-232040-
ME
. MAINE COUNTIES INCLUDED ARE
ANDROSCOGGIN CUMBERLAND KENNEBEC
KNOX LINCOLN SAGADAHOC
WALDO YORK
$$
MAC005-009-011-013-015-017-021-023-025-027-232040-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BRISTOL ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NORFOLK PLYMOUTH SUFFOLK
WORCESTER
$$
NHC001-003-005-011-013-015-017-232040-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
BELKNAP CARROLL CHESHIRE
HILLSBOROUGH MERRIMACK ROCKINGHAM
STRAFFORD
$$
RIC003-007-232040-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
ANZ150-151-152-153-154-230-251-232040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME OUT 25 NM
PENOBSCOT BAY
COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME OUT 25 NM
CASCO BAY
COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT
25 NM
BOSTON HARBOR
MASSACHUSETTS BAY AND IPSWICH BAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 395
VALID 231815Z - 231940Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..DIAL..07/23/20
ATTN...WFO...BOX...GYX...
&&
STATUS REPORT FOR WS 395
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC003-013-015-231940-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
HARTFORD TOLLAND WINDHAM
$$
MEC001-005-011-013-015-023-027-031-231940-
ME
. MAINE COUNTIES INCLUDED ARE
ANDROSCOGGIN CUMBERLAND KENNEBEC
KNOX LINCOLN SAGADAHOC
WALDO YORK
$$
MAC005-009-011-013-015-017-021-023-025-027-231940-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BRISTOL ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NORFOLK PLYMOUTH SUFFOLK
WORCESTER
$$
NHC001-003-005-011-013-015-017-231940-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
BELKNAP CARROLL CHESHIRE
HILLSBOROUGH MERRIMACK ROCKINGHAM
STRAFFORD
$$
RIC003-007-231940-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
KENT PROVIDENCE
$$
ANZ150-151-152-153-154-230-251-231940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME OUT 25 NM
PENOBSCOT BAY
COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME OUT 25 NM
CASCO BAY
COASTAL WATERS FROM CAPE ELIZABETH ME TO MERRIMACK RIVER MA OUT
25 NM
BOSTON HARBOR
MASSACHUSETTS BAY AND IPSWICH BAY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (20%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (10%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.