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.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 477
NWS STORM PREDICTION CENTER NORMAN OK
735 PM EDT FRI JUN 6 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SMALL PART OF EAST CENTRAL INDIANA
LARGE PART OF NORTHWEST OHIO
LAKE ERIE
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 735 PM
UNTIL 100 AM EDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
NORTHEAST OF FINDLAY OHIO TO 20 MILES EAST SOUTHEAST OF DAYTON
OHIO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
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 473...WW 475...WW 476...
DISCUSSION...LINE OF SEVERE THUNDERSTORMS CONTINUE TO MOVE VERY
RAPIDLY EWD ACROSS CENTRAL INDIANA ACCOMPANIED BY DAMAGING WINDS.
WHILE AIR MASS INTO OH A LITTLE LESS UNSTABLE...THE STEEP LAPSE
RATES AND STRONG DEEP LAYER SHEAR SHOULD SUPPORT DAMAGING WINDS FOR
SEVERAL MORE HOURS AS THE LINE MOVES INTO NWRN OH.
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 24045.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 477 SEVERE TSTM IN OH LE 062335Z - 070500Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
40NNE FDY/FINDLAY OH/ - 20ESE DAY/DAYTON OH/
..AVIATION COORDS.. 50NM E/W /39S DXO - 31SSE ROD/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24045.
LAT...LON 41548220 39778273 39778500 41548452
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 477 Status Report Messages:
STATUS REPORT #4 ON WW 477
VALID 070230Z - 070340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ESE DAY
TO 25 SE FDY TO 30 ENE TOL.
..BROYLES..06/07/08
ATTN...WFO...ILN...IWX...CLE...
&&
STATUS REPORT FOR WS 477
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC033-041-043-077-101-117-123-139-143-147-159-070340-
OH
. OHIO COUNTIES INCLUDED ARE
CRAWFORD DELAWARE ERIE
HURON MARION MORROW
OTTAWA RICHLAND SANDUSKY
SENECA UNION
$$
LEZ143-144-162-163-164-444-070340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
DETROIT RIVER LT. TO MAUMEE BAY OH TO RENO BEACH OH BEYOND 5NM
OFFSHORE TO US/CANADIAN BORDER
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORE TO US/CANADIAN
BORDER
THE ISLANDS TO VERMILION OH BEYOND 5NMM OFF SHORETO US/CANADIAN
BORDER
MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI
$$
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.
$$
STATUS REPORT #3 ON WW 477
VALID 070200Z - 070340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW DAY
TO 20 SSW FDY TO 5 WNW TOL.
..BROYLES..06/07/08
ATTN...WFO...ILN...IWX...CLE...
&&
STATUS REPORT FOR WS 477
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OHC021-023-033-041-043-063-065-077-091-095-101-109-117-123-139-
143-147-159-173-175-070340-
OH
. OHIO COUNTIES INCLUDED ARE
CHAMPAIGN CLARK CRAWFORD
DELAWARE ERIE HANCOCK
HARDIN HURON LOGAN
LUCAS MARION MIAMI
MORROW OTTAWA RICHLAND
SANDUSKY SENECA UNION
WOOD WYANDOT
$$
LEZ142-143-144-162-163-164-070340-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MAUMEE BAY TO RENO BEACH OH
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
DETROIT RIVER LT. TO MAUMEE BAY OH TO RENO BEACH OH BEYOND 5NM
OFFSHORE TO US/CANADIAN BORDER
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORE TO US/CANADIAN
BORDER
THE ISLANDS TO VERMILION OH BEYOND 5NMM OFF SHORETO US/CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 477
VALID 070035Z - 070140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..06/07/08
ATTN...WFO...ILN...IWX...CLE...
&&
STATUS REPORT FOR WS 477
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC177-070140-
IN
. INDIANA COUNTIES INCLUDED ARE
WAYNE
$$
OHC003-011-021-023-033-037-039-041-043-051-063-065-069-077-091-
095-101-107-109-117-123-125-137-139-143-147-149-159-161-173-175-
070140-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN AUGLAIZE CHAMPAIGN
CLARK CRAWFORD DARKE
DEFIANCE DELAWARE ERIE
FULTON HANCOCK HARDIN
HENRY HURON LOGAN
LUCAS MARION MERCER
MIAMI MORROW OTTAWA
PAULDING PUTNAM RICHLAND
SANDUSKY SENECA SHELBY
UNION VAN WERT WOOD
WYANDOT
$$
LEZ142-143-144-162-163-164-070140-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MAUMEE BAY TO RENO BEACH OH
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
DETROIT RIVER LT. TO MAUMEE BAY OH TO RENO BEACH OH BEYOND 5NM
OFFSHORE TO US/CANADIAN BORDER
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORE TO US/CANADIAN
BORDER
THE ISLANDS TO VERMILION OH BEYOND 5NMM OFF SHORETO US/CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 477
VALID 062350Z - 070040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..06/06/08
ATTN...WFO...ILN...IWX...CLE...
&&
STATUS REPORT FOR WS 477
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC177-070040-
IN
. INDIANA COUNTIES INCLUDED ARE
WAYNE
$$
OHC003-011-021-023-033-037-039-041-043-051-063-065-069-077-091-
095-101-107-109-117-123-125-137-139-143-147-149-159-161-173-175-
070040-
OH
. OHIO COUNTIES INCLUDED ARE
ALLEN AUGLAIZE CHAMPAIGN
CLARK CRAWFORD DARKE
DEFIANCE DELAWARE ERIE
FULTON HANCOCK HARDIN
HENRY HURON LOGAN
LUCAS MARION MERCER
MIAMI MORROW OTTAWA
PAULDING PUTNAM RICHLAND
SANDUSKY SENECA SHELBY
UNION VAN WERT WOOD
WYANDOT
$$
LEZ142-143-144-162-163-164-070040-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MAUMEE BAY TO RENO BEACH OH
RENO BEACH TO THE ISLANDS OH
THE ISLANDS TO VERMILION OH
DETROIT RIVER LT. TO MAUMEE BAY OH TO RENO BEACH OH BEYOND 5NM
OFFSHORE TO US/CANADIAN BORDER
RENO BEACH TO THE ISLANDS OH BEYOND 5NM OFF SHORE TO US/CANADIAN
BORDER
THE ISLANDS TO VERMILION OH BEYOND 5NMM OFF SHORETO US/CANADIAN
BORDER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (40%)
|
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% (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.