Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 479
NWS STORM PREDICTION CENTER NORMAN OK
1045 PM CDT TUE AUG 6 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN WISCONSIN
LAKE MICHIGAN
* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1045 PM
UNTIL 600 AM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EITHER SIDE OF A LINE FROM 55 MILES SOUTH SOUTHWEST
OF OSHKOSH WISCONSIN TO 35 MILES NORTHWEST OF GREEN BAY
WISCONSIN. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 477...WW 478...
DISCUSSION...MCS INITIALLY OVER WW 477...IN WRN WI AND SERN NM...IS
FCST TO TRANSLATE ITS COLD POOL AND INTERMITTENT DAMAGING-WIND
THREAT ESEWD ACROSS PORTIONS WI. THIS REGIME IS NEAR AND S OF SFC
WARM FRONT AND RELATED MOISTURE/INSTABILITY GRADIENT...PARALLEL TO
ROUGHLY 50-KT DEEP-SHEAR VECTORS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 30035.
...EDWARDS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 479 SEVERE TSTM WI LM 070345Z - 071100Z
AXIS..70 STATUTE MILES EITHER SIDE OF LINE..
55SSW OSH/OSHKOSH WI/ - 35NW GRB/GREEN BAY WI/
..AVIATION COORDS.. 60NM EITHER SIDE /31WNW BAE - 25NW GRB/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 30035.
LAT...LON 43439033 45029004 44638723 43048761
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 479 Status Report Messages:
STATUS REPORT #1 ON WW 479
VALID 070439Z - 070540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 WSW CWA
TO 20 E AUW.
FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 1646.
..EDWARDS..08/07/13
ATTN...WFO...GRB...MKX...
&&
STATUS REPORT FOR WS 479
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
WIC009-015-021-027-039-047-061-071-073-077-087-089-097-111-115-
117-131-135-137-139-141-070540-
WI
. WISCONSIN COUNTIES INCLUDED ARE
BROWN CALUMET COLUMBIA
DODGE FOND DU LAC GREEN LAKE
KEWAUNEE MANITOWOC MARATHON
MARQUETTE OUTAGAMIE OZAUKEE
PORTAGE SAUK SHAWANO
SHEBOYGAN WASHINGTON WAUPACA
WAUSHARA WINNEBAGO WOOD
$$
LMZ522-542-543-643-644-070540-
CW
. ADJACENT COASTAL WATERS INCLUDED ARE
GREEN BAY SOUTH OF LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI
STURGEON BAY TO TWO RIVERS WI
TWO RIVERS TO SHEBOYGAN WI
SHEBOYGAN TO PORT WASHINGTON WI
PORT WASHINGTON TO NORTH POINT LIGHT WI
$$
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 (<5%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
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 (<5%)
|
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 (60%)
|
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.
weather.gov 
@NWSSPC
