Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
0-
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 450
NWS Storm Prediction Center Norman OK
310 PM EDT Tue Aug 25 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Connecticut
Massachusetts
Eastern Maine
Southern New Hampshire
Northeast New Jersey
Southeast New York
Rhode Island
Southern Vermont
Coastal Waters
* Effective this Tuesday afternoon and evening from 310 PM until
1000 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Clusters of severe thunderstorms will move southeast
across the watch area through early evening with a risk for damaging
wind gusts and isolated instances of large hail.
The severe thunderstorm watch area is approximately along and 60
statute miles east and west of a line from 25 miles east northeast
of Augusta ME to 10 miles southwest of Bridgeport CT. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 449...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30035.
...Bunting
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 450 SEVERE TSTM CT MA ME NH NJ NY RI VT CW 251910Z - 260200Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
25ENE AUG/AUGUSTA ME/ - 10SW BDR/BRIDGEPORT CT/
..AVIATION COORDS.. 50NM E/W /30SW BGR - 35NE JFK/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 30035.
LAT...LON 44456812 41067211 41067442 44457055
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 450 Status Report Messages:
STATUS REPORT #5 ON WW 450
VALID 260020Z - 260Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S GON TO
30 SSE EWB TO 40 E ACK.
..MOORE..08/26/20
ATTN...WFO...OKX...BOX...ALY...GYX...CAR...
&&
STATUS REPORT FOR WS 450
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ANZ255-256-260140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 450
VALID 252330Z - 260Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSW EWR
TO 30 WSW GON TO 25 N GON TO 20 SE ORH TO 15 W BOS TO 25 ESE PSM.
..MOORE..08/25/20
ATTN...WFO...OKX...BOX...ALY...GYX...CAR...
&&
STATUS REPORT FOR WS 450
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MAC001-005-007-019-021-023-025-260040-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BARNSTABLE BRISTOL DUKES
NANTUCKET NORFOLK PLYMOUTH
SUFFOLK
$$
NYC103-260040-
NY
. NEW YORK COUNTIES INCLUDED ARE
SUFFOLK
$$
RIC001-003-005-007-009-260040-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
BRISTOL KENT NEWPORT
PROVIDENCE WASHINGTON
$$
ANZ230-231-232-233-234-235-236-237-250-251-254-255-256-330-340-
345-350-353-355-260040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BOSTON HARBOR
CAPE COD BAY
NANTUCKET SOUND
VINEYARD SOUND
BUZZARDS BAY
RHODE ISLAND SOUND
NARRAGANSETT BAY
BLOCK ISLAND SOUND
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY
MASSACHUSETTS BAY AND IPSWICH BAY
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY
PECONIC AND GARDINERS BAYS
SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY
MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM
FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
$$
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.
$$
STATUS REPORT #3 ON WW 450
VALID 252230Z - 252Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SSE MSV
TO 5 E POU TO 20 SSW PSF TO 25 N PSF TO 70 ESE PSM.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1574
..MOORE..08/25/20
ATTN...WFO...OKX...BOX...ALY...GYX...CAR...
&&
STATUS REPORT FOR WS 450
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-003-005-007-009-011-013-015-252340-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD HARTFORD LITCHFIELD
MIDDLESEX NEW HAVEN NEW LONDON
TOLLAND WINDHAM
$$
MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027-
252340-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BARNSTABLE BERKSHIRE BRISTOL
DUKES ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NANTUCKET NORFOLK PLYMOUTH
SUFFOLK WORCESTER
$$
NJC003-013-017-031-039-252340-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
BERGEN ESSEX HUDSON
PASSAIC UNION
$$
NYC005-047-059-061-079-081-085-087-103-119-252340-
NY
. NEW YORK COUNTIES INCLUDED ARE
BRONX KINGS NASSAU
NEW YORK PUTNAM QUEENS
RICHMOND ROCKLAND SUFFOLK
WESTCHESTER
$$
RIC001-003-005-007-009-252340-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
BRISTOL KENT NEWPORT
PROVIDENCE WASHINGTON
$$
ANZ230-231-232-233-234-235-236-237-250-251-254-255-256-330-335-
338-340-345-350-353-355-252340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
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
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
PECONIC AND GARDINERS BAYS
SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY
MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM
FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 450
VALID 252140Z - 252Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNW EEN
TO 5 W CON TO 15 S PWM TO 50 S BHB.
..MOORE..08/25/20
ATTN...WFO...OKX...BOX...ALY...GYX...CAR...
&&
STATUS REPORT FOR WS 450
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-003-005-007-009-011-013-015-252240-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD HARTFORD LITCHFIELD
MIDDLESEX NEW HAVEN NEW LONDON
TOLLAND WINDHAM
$$
MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027-
252240-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BARNSTABLE BERKSHIRE BRISTOL
DUKES ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NANTUCKET NORFOLK PLYMOUTH
SUFFOLK WORCESTER
$$
NHC005-011-013-015-017-252240-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
CHESHIRE HILLSBOROUGH MERRIMACK
ROCKINGHAM STRAFFORD
$$
NJC003-013-017-031-039-252240-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
BERGEN ESSEX HUDSON
PASSAIC UNION
$$
NYC001-005-021-027-039-047-059-061-071-079-081-083-085-087-103-
111-119-252240-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALBANY BRONX COLUMBIA
DUTCHESS GREENE KINGS
NASSAU NEW YORK ORANGE
PUTNAM QUEENS RENSSELAER
RICHMOND ROCKLAND SUFFOLK
ULSTER WESTCHESTER
$$
RIC001-003-005-007-009-252240-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
BRISTOL KENT NEWPORT
PROVIDENCE WASHINGTON
$$
VTC003-025-252240-
VT
. VERMONT COUNTIES INCLUDED ARE
BENNINGTON WINDHAM
$$
ANZ230-231-232-233-234-235-236-237-250-251-254-255-256-330-335-
338-340-345-350-353-355-252240-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BOSTON HARBOR
CAPE COD BAY
NANTUCKET SOUND
VINEYARD SOUND
BUZZARDS BAY
RHODE ISLAND SOUND
NARRAGANSETT BAY
BLOCK ISLAND SOUND
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY
MASSACHUSETTS BAY AND IPSWICH BAY
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
PECONIC AND GARDINERS BAYS
SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY
MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM
FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
$$
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.
$$
STATUS REPORT #1 ON WW 450
VALID 252055Z - 252Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NW CON TO
20 E CON TO 10 WNW BHB.
..MOSIER..08/25/20
ATTN...WFO...OKX...BOX...ALY...GYX...CAR...
&&
STATUS REPORT FOR WS 450
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
CTC001-003-005-007-009-011-013-015-252140-
CT
. CONNECTICUT COUNTIES INCLUDED ARE
FAIRFIELD HARTFORD LITCHFIELD
MIDDLESEX NEW HAVEN NEW LONDON
TOLLAND WINDHAM
$$
MEC009-029-031-252140-
ME
. MAINE COUNTIES INCLUDED ARE
HANCOCK WASHINGTON YORK
$$
MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027-
252140-
MA
. MASSACHUSETTS COUNTIES INCLUDED ARE
BARNSTABLE BERKSHIRE BRISTOL
DUKES ESSEX FRANKLIN
HAMPDEN HAMPSHIRE MIDDLESEX
NANTUCKET NORFOLK PLYMOUTH
SUFFOLK WORCESTER
$$
NHC005-011-013-015-017-019-252140-
NH
. NEW HAMPSHIRE COUNTIES INCLUDED ARE
CHESHIRE HILLSBOROUGH MERRIMACK
ROCKINGHAM STRAFFORD SULLIVAN
$$
NJC003-013-017-031-039-252140-
NJ
. NEW JERSEY COUNTIES INCLUDED ARE
BERGEN ESSEX HUDSON
PASSAIC UNION
$$
NYC001-005-021-027-039-047-059-061-071-079-081-083-085-087-103-
111-119-252140-
NY
. NEW YORK COUNTIES INCLUDED ARE
ALBANY BRONX COLUMBIA
DUTCHESS GREENE KINGS
NASSAU NEW YORK ORANGE
PUTNAM QUEENS RENSSELAER
RICHMOND ROCKLAND SUFFOLK
ULSTER WESTCHESTER
$$
RIC001-003-005-007-009-252140-
RI
. RHODE ISLAND COUNTIES INCLUDED ARE
BRISTOL KENT NEWPORT
PROVIDENCE WASHINGTON
$$
VTC003-025-252140-
VT
. VERMONT COUNTIES INCLUDED ARE
BENNINGTON WINDHAM
$$
ANZ052-150-151-152-153-230-231-232-233-234-235-236-237-250-251-
254-255-256-330-335-338-340-345-350-353-355-252140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
INTRA COASTAL WATERS FROM SCHOODIC POINT ME TO STONINGTON ME
COASTAL WATERS FROM STONINGTON ME TO PORT CLYDE ME OUT 25 NM
PENOBSCOT BAY
COASTAL WATERS FROM PORT CLYDE ME TO CAPE ELIZABETH ME OUT 25 NM
CASCO BAY
BOSTON HARBOR
CAPE COD BAY
NANTUCKET SOUND
VINEYARD SOUND
BUZZARDS BAY
RHODE ISLAND SOUND
NARRAGANSETT BAY
BLOCK ISLAND SOUND
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY
MASSACHUSETTS BAY AND IPSWICH BAY
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND
LONG ISLAND SOUND EAST OF NEW HAVEN CT/PORT JEFFERSON NY
LONG ISLAND SOUND WEST OF NEW HAVEN CT/PORT JEFFERSON NY
NEW YORK HARBOR
PECONIC AND GARDINERS BAYS
SOUTH SHORE BAYS FROM JONES INLET THROUGH SHINNECOCK BAY
MORICHES INLET NY TO MONTAUK POINT NY OUT 20 NM
FIRE ISLAND INLET NY TO MORICHES INLET NY OUT 20 NM
SANDY HOOK NJ TO FIRE ISLAND INLET NY OUT 20 NM
$$
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.
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