Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 747
NWS STORM PREDICTION CENTER NORMAN OK
1220 AM EDT MON SEP 28 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND SOUTHEAST INDIANA
FAR NORTHERN KENTUCKY
WESTERN OHIO
EFFECTIVE THIS MONDAY MORNING FROM 1220 AM UNTIL 600 AM EDT.
HAIL TO 0.5 INCH 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 105
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF
MUNCIE INDIANA TO 40 MILES EAST SOUTHEAST OF BLOOMINGTON INDIANA.
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 745...WW 746...
DISCUSSION...VEERING LOW LVL WINDS UPSTREAM ACROSS IL LIKELY HAVE
CONTRIBUTED TO RECENT DEVELOPMENT OF STORMS IN W CNTRL IND. THIS
ACTIVITY...AND POSSIBLE ADDITIONAL DEVELOPMENT SWD ALONG COLD FRONT
IN CNTRL IL /REF MCD 2040/...COULD POSE A THREAT FOR ISOLD DMGG
WINDS...MARGINALLY SVR HAIL...AND POSSIBLY A BRIEF TORNADO AS DEEP
FORCING FOR ASCENT INCREASES RAPIDLY ESEWD AHEAD OF AMPLIFYING MN/WI
UPR VORT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 350. MEAN STORM
MOTION VECTOR 27055.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 747 SEVERE TSTM IN KY OH 280420Z - 281000Z
AXIS..105 STATUTE MILES EAST AND WEST OF LINE..
25N MIE/MUNCIE IN/ - 40ESE BMG/BLOOMINGTON IN/
..AVIATION COORDS.. 90NM E/W /24SSW FWA - 52NNW LOU/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 350. MEAN STORM MOTION VECTOR 27055.
LAT...LON 40598340 38908398 38908788 40598740
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 747 Status Report Messages:
STATUS REPORT #2 ON WW 747
VALID 280635Z - 280740Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 N SDF TO
30 W DAY TO 45 ESE FWA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2041.
..PETERS..09/28/09
ATTN...WFO...IND...ILN...
&&
STATUS REPORT FOR WS 747
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC029-041-047-115-137-161-280740-
IN
. INDIANA COUNTIES INCLUDED ARE
DEARBORN FAYETTE FRANKLIN
OHIO RIPLEY UNION
$$
KYC015-037-117-280740-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOONE CAMPBELL KENTON
$$
OHC011-017-021-023-025-027-037-057-061-065-091-109-113-135-149-
165-280740-
OH
. OHIO COUNTIES INCLUDED ARE
AUGLAIZE BUTLER CHAMPAIGN
CLARK CLERMONT CLINTON
DARKE GREENE HAMILTON
HARDIN LOGAN MIAMI
MONTGOMERY PREBLE SHELBY
WARREN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 747
VALID 280540Z - 280640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 SE BMG TO
25 N MIE.
..PETERS..09/28/09
ATTN...WFO...IND...ILN...
&&
STATUS REPORT FOR WS 747
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
INC005-029-031-035-041-047-059-065-071-079-095-115-135-137-139-
145-161-177-280640-
IN
. INDIANA COUNTIES INCLUDED ARE
BARTHOLOMEW DEARBORN DECATUR
DELAWARE FAYETTE FRANKLIN
HANCOCK HENRY JACKSON
JENNINGS MADISON OHIO
RANDOLPH RIPLEY RUSH
SHELBY UNION WAYNE
$$
KYC015-037-117-280640-
KY
. KENTUCKY COUNTIES INCLUDED ARE
BOONE CAMPBELL KENTON
$$
OHC011-017-021-023-025-027-037-057-061-065-091-107-109-113-135-
149-165-280640-
OH
. OHIO COUNTIES INCLUDED ARE
AUGLAIZE BUTLER CHAMPAIGN
CLARK CLERMONT CLINTON
DARKE GREENE HAMILTON
HARDIN LOGAN MERCER
MIAMI MONTGOMERY PREBLE
SHELBY WARREN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Low (10%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (50%)
|
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.