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.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 425
NWS STORM PREDICTION CENTER NORMAN OK
1050 PM CDT FRI JUN 3 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
UPPER PENINSULA OF MICHIGAN
NORTHEAST WISCONSIN
LAKE SUPERIOR
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1050 PM
UNTIL 600 AM CDT.
HAIL TO 2 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 NORTH AND SOUTH OF A LINE FROM 80 MILES SOUTHWEST
OF HOUGHTON MICHIGAN TO 100 MILES EAST NORTHEAST OF ESCANABA
MICHIGAN. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
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 423...WW 424...
DISCUSSION...ELEVATED TSTMS /INCLUDING SUPERCELLS/ OVER WRN LAKE
SUPERIOR ARE EXPECTED TO PERSIST OVERNIGHT...AND POSSIBLY INCREASE
IN AREAL COVERAGE ALONG THE NRN FRINGE OF THE CAP WHERE LOW-LEVEL
WAA WILL FOCUS FORCING FOR ASCENT. THE COMBINATION OF MUCAPE OF
2000-3000 J/KG AND EFFECTIVE BULK SHEAR OF 40-45 KT WILL SERVE TO
MAINTAIN ORGANIZED STORM MODES WITH A POTENTIAL FOR UPSCALE GROWTH
INTO AN MCS. WHILE LARGE HAIL WILL INITIALLY BE THE PRIMARY
HAZARD...DAMAGING WINDS WILL BECOME INCREASINGLY POSSIBLE IF STORMS
CAN ORGANIZE A COLD POOL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27030.
...MEAD
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 425 SEVERE TSTM MI WI LS 040350Z - 041100Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
80SW CMX/HOUGHTON MI/ - 100ENE ESC/ESCANABA MI/
..AVIATION COORDS.. 50NM N/S /44NNW RHI - 37WSW SSM/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27030.
LAT...LON 47208966 47138516 45388516 45478966
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 425 Status Report Messages:
STATUS REPORT #3 ON WW 425
VALID 040835Z - 040940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW PLN
TO 35 ENE ESC TO 65 NW ANJ.
..JEWELL..06/04/11
ATTN...WFO...MQT...GRB...
&&
STATUS REPORT FOR WS 425
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MIC003-095-153-040940-
MI
. MICHIGAN COUNTIES INCLUDED ARE
ALGER LUCE SCHOOLCRAFT
$$
LSZ250-251-267-040940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MUNISING TO GRAND MARAIS MI
GRAND MARAIS TO WHITEFISH POINT MI
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER
$$
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.
$$
STATUS REPORT #2 ON WW 425
VALID 040805Z - 040940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NNW PLN
TO 35 ENE ESC TO 45 E MQT TO 60 NNW ANJ.
..JEWELL..06/04/11
ATTN...WFO...MQT...GRB...
&&
STATUS REPORT FOR WS 425
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MIC003-041-095-153-040940-
MI
. MICHIGAN COUNTIES INCLUDED ARE
ALGER DELTA LUCE
SCHOOLCRAFT
$$
LSZ249-250-251-267-040940-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
MARQUETTE TO MUNISING MI
MUNISING TO GRAND MARAIS MI
GRAND MARAIS TO WHITEFISH POINT MI
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE 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 425
VALID 040545Z - 040640Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..JEWELL..06/04/11
ATTN...WFO...MQT...GRB...
&&
STATUS REPORT FOR WS 425
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
MIC003-013-041-043-053-061-071-083-095-103-131-153-040640-
MI
. MICHIGAN COUNTIES INCLUDED ARE
ALGER BARAGA DELTA
DICKINSON GOGEBIC HOUGHTON
IRON KEWEENAW LUCE
MARQUETTE ONTONAGON SCHOOLCRAFT
$$
WIC037-041-085-125-040640-
WI
. WISCONSIN COUNTIES INCLUDED ARE
FLORENCE FOREST ONEIDA
VILAS
$$
LSZ241-242-243-244-245-246-247-248-249-250-251-263-264-265-266-
267-040640-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
BLACK RIVER TO ONTONAGON MI
ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI
UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI
EAGLE RIVER TO MANITOU ISLAND MI
MANITOU ISLAND TO POINT ISABELLE MI
POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI
PORTAGE LAKE TO HURON ISLAND MI TO LOWER ENTRANCE OF PORTAGE
CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS
HURON ISLANDS TO MARQUETTE MI
MARQUETTE TO MUNISING MI
MUNISING TO GRAND MARAIS MI
GRAND MARAIS TO WHITEFISH POINT MI
LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE
CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE
ROYAL NATIONAL PARK
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE
LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI
AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER
BEYOND 5NM FROM SHORE
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE 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 (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
|
Mod (30%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
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.