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
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 630
NWS STORM PREDICTION CENTER NORMAN OK
505 PM EDT MON JUL 11 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL MAINE
EFFECTIVE THIS MONDAY AFTERNOON FROM 505 PM UNTIL MIDNIGHT 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 90
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES NORTHEAST
OF HOULTON MAINE TO 95 MILES NORTHWEST OF BANGOR MAINE. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).
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...WW 628...WW 629...
DISCUSSION...STORMS ARE INCREASING OVER PARTS OF NRN ME AS WELL AS
TO THE WEST OVER SRN QUEBEC. SUFFICIENT INSTABILITY WITH MLCAPE OF
1000-1500 J/KG COUPLED WITH 40 KT WLY FLOW AND ASSOCIATED STRONG
DEEP LAYER SHEAR WILL SUPPORT THREAT FOR SEVERE STORMS THROUGH THE
EVENING HOURS.
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 450. MEAN STORM
MOTION VECTOR 26030.
...WEISS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 630 SEVERE TSTM ME 112105Z - 120400Z
AXIS..90 STATUTE MILES NORTH AND SOUTH OF LINE..
15NE HUL/HOULTON ME/ - 95NW BGR/BANGOR ME/
..AVIATION COORDS.. 80NM N/S /17NE HUL - 64ENE YSC/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 26030.
LAT...LON 44976758 44457022 47067022 47586758
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 630 Status Report Messages:
STATUS REPORT #3 ON WW 630
VALID 112340Z - 120040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..07/11/11
ATTN...WFO...CAR...GYX...
&&
STATUS REPORT FOR WS 630
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MEC003-019-021-025-120040-
ME
. MAINE COUNTIES INCLUDED ARE
AROOSTOOK PENOBSCOT PISCATAQUIS
SOMERSET
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 630
VALID 112230Z - 112340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..07/11/11
ATTN...WFO...CAR...GYX...
&&
STATUS REPORT FOR WS 630
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MEC003-019-021-025-112340-
ME
. MAINE COUNTIES INCLUDED ARE
AROOSTOOK PENOBSCOT PISCATAQUIS
SOMERSET
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 630
VALID 112200Z - 112340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GARNER..07/11/11
ATTN...WFO...CAR...GYX...
&&
STATUS REPORT FOR WS 630
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MEC003-019-021-025-112340-
ME
. MAINE COUNTIES INCLUDED ARE
AROOSTOOK PENOBSCOT PISCATAQUIS
SOMERSET
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
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 (70%)
|
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.