Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 449
NWS Storm Prediction Center Norman OK
120 PM EDT Tue Aug 25 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Extreme western Maryland
Southern New York
Central and Eastern Ohio
Much of Pennsylvania
Northern West Virginia
* Effective this Tuesday afternoon and evening from 120 PM until
900 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Severe thunderstorms will move southeast across the watch
area this afternoon with a risk for damaging wind gusts and isolated
reports of large hail.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles northwest of
Athens OH to 45 miles east southeast of Binghamton NY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
30030.
...Bunting
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 449 SEVERE TSTM MD NY OH PA WV 251720Z - 260100Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
45NW UNI/ATHENS OH/ - 45ESE BGM/BINGHAMTON NY/
..AVIATION COORDS.. 50NM N/S /30SSW APE - 9SE HNK/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 30030.
LAT...LON 40558283 42827517 41087517 38818283
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 449 Status Report Messages:
STATUS REPORT #6 ON WW 449
VALID 252330Z - 260040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NW HTS TO
5 NNE HTS TO 25 NW MRB.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1575
..MOORE..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
WVC093-260040-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
TUCKER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #5 ON WW 449
VALID 252225Z - 252340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 WSW UNI
TO 25 NE PKB TO 10 NNE MGW TO 30 SE CXY.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1573
..MOORE..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC023-252340-
MD
. MARYLAND COUNTIES INCLUDED ARE
GARRETT
$$
OHC053-087-105-167-252340-
OH
. OHIO COUNTIES INCLUDED ARE
GALLIA LAWRENCE MEIGS
WASHINGTON
$$
WVC017-033-035-049-053-061-073-077-085-091-093-095-105-107-
252340-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
DODDRIDGE HARRISON JACKSON
MARION MASON MONONGALIA
PLEASANTS PRESTON RITCHIE
TAYLOR TUCKER TYLER
WIRT WOOD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 449
VALID 252145Z - 252240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW MFD
TO 5 ENE ZZV TO 25 SE HLG TO 25 W AOO TO 15 W MSV.
..MOORE..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC023-252240-
MD
. MARYLAND COUNTIES INCLUDED ARE
GARRETT
$$
OHC009-045-053-073-079-087-105-111-115-121-127-129-131-141-145-
163-167-252240-
OH
. OHIO COUNTIES INCLUDED ARE
ATHENS FAIRFIELD GALLIA
HOCKING JACKSON LAWRENCE
MEIGS MONROE MORGAN
NOBLE PERRY PICKAWAY
PIKE ROSS SCIOTO
VINTON WASHINGTON
$$
PAC001-009-037-041-043-051-055-057-059-067-071-075-099-107-109-
111-133-252240-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ADAMS BEDFORD COLUMBIA
CUMBERLAND DAUPHIN FAYETTE
FRANKLIN FULTON GREENE
JUNIATA LANCASTER LEBANON
PERRY SCHUYLKILL SNYDER
SOMERSET YORK
$$
WVC017-033-035-049-051-053-061-073-077-085-091-093-095-103-105-
107-252240-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
DODDRIDGE HARRISON JACKSON
MARION MARSHALL MASON
MONONGALIA PLEASANTS PRESTON
RITCHIE TAYLOR TUCKER
TYLER WETZEL WIRT
WOOD
$$
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.
$$
STATUS REPORT #3 ON WW 449
VALID 252050Z - 252140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM CMH TO 20
ENE PIT TO 10 ENE AOO TO 15 WSW MSV.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1573
..MOSIER..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC023-252140-
MD
. MARYLAND COUNTIES INCLUDED ARE
GARRETT
$$
NYC105-252140-
NY
. NEW YORK COUNTIES INCLUDED ARE
SULLIVAN
$$
OHC009-013-045-053-059-067-073-079-087-105-111-115-119-121-127-
129-131-141-145-163-167-252140-
OH
. OHIO COUNTIES INCLUDED ARE
ATHENS BELMONT FAIRFIELD
GALLIA GUERNSEY HARRISON
HOCKING JACKSON LAWRENCE
MEIGS MONROE MORGAN
MUSKINGUM NOBLE PERRY
PICKAWAY PIKE ROSS
SCIOTO VINTON WASHINGTON
$$
PAC001-003-009-037-041-043-051-055-057-059-067-069-071-075-079-
099-103-107-109-111-125-129-133-252140-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ADAMS ALLEGHENY BEDFORD
COLUMBIA CUMBERLAND DAUPHIN
FAYETTE FRANKLIN FULTON
GREENE JUNIATA LACKAWANNA
LANCASTER LEBANON LUZERNE
PERRY PIKE SCHUYLKILL
SNYDER SOMERSET WASHINGTON
WESTMORELAND YORK
$$
WVC009-017-033-035-049-051-053-061-069-073-077-085-091-093-095-
103-105-107-252140-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BROOKE DODDRIDGE HARRISON
JACKSON MARION MARSHALL
MASON MONONGALIA OHIO
PLEASANTS PRESTON RITCHIE
TAYLOR TUCKER TYLER
WETZEL WIRT WOOD
$$
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.
$$
STATUS REPORT #2 ON WW 449
VALID 251955Z - 252040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 N CMH TO
30 S FKL TO 20 N AOO TO 25 NW MSV.
..MOSIER..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC023-252040-
MD
. MARYLAND COUNTIES INCLUDED ARE
GARRETT
$$
NYC105-252040-
NY
. NEW YORK COUNTIES INCLUDED ARE
SULLIVAN
$$
OHC009-013-019-031-041-045-049-053-059-067-073-079-081-087-089-
105-111-115-119-121-127-129-131-141-145-157-163-167-252040-
OH
. OHIO COUNTIES INCLUDED ARE
ATHENS BELMONT CARROLL
COSHOCTON DELAWARE FAIRFIELD
FRANKLIN GALLIA GUERNSEY
HARRISON HOCKING JACKSON
JEFFERSON LAWRENCE LICKING
MEIGS MONROE MORGAN
MUSKINGUM NOBLE PERRY
PICKAWAY PIKE ROSS
SCIOTO TUSCARAWAS VINTON
WASHINGTON
$$
PAC001-003-005-007-009-013-019-021-037-041-043-051-055-057-059-
061-063-067-069-071-075-079-087-093-097-099-103-107-109-111-119-
125-127-129-131-133-252040-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ADAMS ALLEGHENY ARMSTRONG
BEAVER BEDFORD BLAIR
BUTLER CAMBRIA COLUMBIA
CUMBERLAND DAUPHIN FAYETTE
FRANKLIN FULTON GREENE
HUNTINGDON INDIANA JUNIATA
LACKAWANNA LANCASTER LEBANON
LUZERNE MIFFLIN MONTOUR
NORTHUMBERLAND PERRY PIKE
SCHUYLKILL SNYDER SOMERSET
UNION WASHINGTON WAYNE
WESTMORELAND WYOMING YORK
$$
WVC009-017-029-033-035-049-051-053-061-069-073-077-085-091-093-
095-103-105-107-252040-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BROOKE DODDRIDGE HANCOCK
HARRISON JACKSON MARION
MARSHALL MASON MONONGALIA
OHIO PLEASANTS PRESTON
RITCHIE TAYLOR TUCKER
TYLER WETZEL WIRT
WOOD
$$
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.
$$
STATUS REPORT #1 ON WW 449
VALID 251840Z - 251940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 W FKL TO
15 E FKL TO 35 SSE UCA.
..MOSIER..08/25/20
ATTN...WFO...PBZ...BGM...CLE...RLX...ILN...CTP...
&&
STATUS REPORT FOR WS 449
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MDC023-251940-
MD
. MARYLAND COUNTIES INCLUDED ARE
GARRETT
$$
NYC007-015-025-077-105-107-251940-
NY
. NEW YORK COUNTIES INCLUDED ARE
BROOME CHEMUNG DELAWARE
OTSEGO SULLIVAN TIOGA
$$
OHC005-009-013-019-029-031-033-041-045-049-053-059-067-073-075-
079-081-083-087-089-099-101-105-111-115-117-119-121-127-129-131-
139-141-145-151-157-163-167-169-175-251940-
OH
. OHIO COUNTIES INCLUDED ARE
ASHLAND ATHENS BELMONT
CARROLL COLUMBIANA COSHOCTON
CRAWFORD DELAWARE FAIRFIELD
FRANKLIN GALLIA GUERNSEY
HARRISON HOCKING HOLMES
JACKSON JEFFERSON KNOX
LAWRENCE LICKING MAHONING
MARION MEIGS MONROE
MORGAN MORROW MUSKINGUM
NOBLE PERRY PICKAWAY
PIKE RICHLAND ROSS
SCIOTO STARK TUSCARAWAS
VINTON WASHINGTON WAYNE
WYANDOT
$$
PAC001-003-005-007-009-013-015-019-021-023-027-031-033-035-037-
041-043-047-051-055-057-059-061-063-065-067-069-071-073-075-079-
081-085-087-093-097-099-103-105-107-109-111-113-115-117-119-125-
127-129-131-133-251940-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
ADAMS ALLEGHENY ARMSTRONG
BEAVER BEDFORD BLAIR
BRADFORD BUTLER CAMBRIA
CAMERON CENTRE CLARION
CLEARFIELD CLINTON COLUMBIA
CUMBERLAND DAUPHIN ELK
FAYETTE FRANKLIN FULTON
GREENE HUNTINGDON INDIANA
JEFFERSON JUNIATA LACKAWANNA
LANCASTER LAWRENCE LEBANON
LUZERNE LYCOMING MERCER
MIFFLIN MONTOUR NORTHUMBERLAND
PERRY PIKE POTTER
SCHUYLKILL SNYDER SOMERSET
SULLIVAN SUSQUEHANNA TIOGA
UNION WASHINGTON WAYNE
WESTMORELAND WYOMING YORK
$$
WVC009-017-029-033-035-049-051-053-061-069-073-077-085-091-093-
095-103-105-107-251940-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BROOKE DODDRIDGE HANCOCK
HARRISON JACKSON MARION
MARSHALL MASON MONONGALIA
OHIO PLEASANTS PRESTON
RITCHIE TAYLOR TUCKER
TYLER WETZEL WIRT
WOOD
$$
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 (60%)
|
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
|
High (80%)
|
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.