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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 628
NWS STORM PREDICTION CENTER NORMAN OK
215 PM EDT MON JUL 11 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEAST OHIO
SOUTHWEST PENNSYLVANIA
WEST VIRGINIA
EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
1000 PM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES NORTH
NORTHWEST OF HUNTINGTON WEST VIRGINIA TO 30 MILES SOUTHEAST OF
MORGANTOWN WEST VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
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 627...
DISCUSSION...LINE OF SEVERE STORMS IS MOVING ESEWD OVER CENTRAL OH.
AIR MASS OVER SRN OH INTO WV IS CONTINUING TO HEAT AND DESTABILIZE
WITH MLCAPE OF 1500-2500 J/KG ALONG ERN PORTION OF THE INSTABILITY
AXIS THAT EXTENDS ACROSS THE OH VALLEY. A WELL-DEFINED COLD POOL
AND INCREASINGLY NWLY MID LEVEL WINDS INDICATE CONVECTIVE SYSTEM
WILL PROPAGATE MORE SEWD WITH TIME AND MAINTAIN THREAT FOR DAMAGING
WINDS AND OCCASIONAL HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29025.
...WEISS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 628 SEVERE TSTM OH PA WV 111815Z - 120200Z
AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
35NNW HTS/HUNTINGTON WV/ - 30SE MGW/MORGANTOWN WV/
..AVIATION COORDS.. 65NM N/S /36W HNN - 37NE EKN/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29025.
LAT...LON 39908280 40437951 38257951 37748280
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 628 Status Report Messages:
STATUS REPORT #4 ON WW 628
VALID 112345Z - 120040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NW HTS TO
15 N BKW.
..GARNER..07/11/11
ATTN...WFO...RLX...PBZ...
&&
STATUS REPORT FOR WS 628
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC019-043-089-127-120040-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOYD CARTER GREENUP
LAWRENCE
$$
WVC005-011-043-045-059-099-120040-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BOONE CABELL LINCOLN
LOGAN MINGO WAYNE
$$
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.
$$
STATUS REPORT #3 ON WW 628
VALID 112235Z - 112340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNW HTS
TO 30 NE CRW TO 30 W EKN TO 15 NW LBE.
..GARNER..07/11/11
ATTN...WFO...RLX...PBZ...
&&
STATUS REPORT FOR WS 628
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC019-043-089-127-112340-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOYD CARTER GREENUP
LAWRENCE
$$
OHC087-112340-
OH
. OHIO COUNTIES INCLUDED ARE
LAWRENCE
$$
PAC051-059-129-112340-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
FAYETTE GREENE WESTMORELAND
$$
WVC001-005-007-011-015-019-039-043-045-049-059-061-067-075-077-
079-083-091-093-097-099-101-112340-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BARBOUR BOONE BRAXTON
CABELL CLAY FAYETTE
KANAWHA LINCOLN LOGAN
MARION MINGO MONONGALIA
NICHOLAS POCAHONTAS PRESTON
PUTNAM RANDOLPH TAYLOR
TUCKER UPSHUR WAYNE
WEBSTER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 628
VALID 112200Z - 112340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 SW UNI TO
30 NE CRW TO 45 W EKN TO 30 W MGW TO 15 ESE PIT.
..GARNER..07/11/11
ATTN...WFO...RLX...PBZ...
&&
STATUS REPORT FOR WS 628
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC019-043-089-127-112340-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOYD CARTER GREENUP
LAWRENCE
$$
OHC087-112340-
OH
. OHIO COUNTIES INCLUDED ARE
LAWRENCE
$$
PAC051-059-129-112340-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
FAYETTE GREENE WESTMORELAND
$$
WVC001-005-007-011-015-019-039-043-045-049-059-061-067-075-077-
079-083-091-093-097-099-101-112340-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BARBOUR BOONE BRAXTON
CABELL CLAY FAYETTE
KANAWHA LINCOLN LOGAN
MARION MINGO MONONGALIA
NICHOLAS POCAHONTAS PRESTON
PUTNAM RANDOLPH TAYLOR
TUCKER UPSHUR WAYNE
WEBSTER
$$
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.
$$
STATUS REPORT #1 ON WW 628
VALID 112030Z - 112140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..07/11/11
ATTN...WFO...RLX...PBZ...
&&
STATUS REPORT FOR WS 628
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KYC019-043-089-127-112140-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOYD CARTER GREENUP
LAWRENCE
$$
OHC009-053-079-087-105-111-115-121-127-163-167-112140-
OH
. OHIO COUNTIES INCLUDED ARE
ATHENS GALLIA JACKSON
LAWRENCE MEIGS MONROE
MORGAN NOBLE PERRY
VINTON WASHINGTON
$$
PAC051-059-125-112140-
PA
. PENNSYLVANIA COUNTIES INCLUDED ARE
FAYETTE GREENE WASHINGTON
$$
WVC001-005-007-009-011-013-015-017-019-021-029-033-035-039-041-
043-045-049-051-053-059-061-067-069-073-075-077-079-083-085-087-
091-093-095-097-099-101-103-105-107-112140-
WV
. WEST VIRGINIA COUNTIES INCLUDED ARE
BARBOUR BOONE BRAXTON
BROOKE CABELL CALHOUN
CLAY DODDRIDGE FAYETTE
GILMER HANCOCK HARRISON
JACKSON KANAWHA LEWIS
LINCOLN LOGAN MARION
MARSHALL MASON MINGO
MONONGALIA NICHOLAS OHIO
PLEASANTS POCAHONTAS PRESTON
PUTNAM RANDOLPH RITCHIE
ROANE TAYLOR TUCKER
TYLER UPSHUR WAYNE
WEBSTER 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 (10%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
High (70%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
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% (F2-F5 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.