MIL-OSI USA: SPC Severe Thunderstorm Watch 275

By   /  July 13, 2018  /  Comments Off on MIL-OSI USA: SPC Severe Thunderstorm Watch 275

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Source: US National Oceanic and Atmospheric Administration

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.Note: Click for Watch Status Reports.
SEL5

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 275
NWS Storm Prediction Center Norman OK
815 PM CDT Thu Jul 12 2018

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Central Wisconsin

* Effective this Thursday night and Friday morning from 815 PM
until 100 AM CDT.

* Primary threats include…
Scattered damaging wind gusts to 70 mph likely
Scattered large hail events to 1.5 inches in diameter possible

SUMMARY…A line of intense thunderstorms over western Wisconsin
will track eastward across the watch area this evening, posing a
risk of locally damaging wind gusts.

The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 30 miles west of
Mosinee WI to 45 miles north of Oshkosh WI. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU5).

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 273…WW 274…

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
27030.

…Hart

SEL5

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 275
NWS Storm Prediction Center Norman OK
815 PM CDT Thu Jul 12 2018

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Central Wisconsin

* Effective this Thursday night and Friday morning from 815 PM
until 100 AM CDT.

* Primary threats include…
Scattered damaging wind gusts to 70 mph likely
Scattered large hail events to 1.5 inches in diameter possible

SUMMARY…A line of intense thunderstorms over western Wisconsin
will track eastward across the watch area this evening, posing a
risk of locally damaging wind gusts.

The severe thunderstorm watch area is approximately along and 50
statute miles north and south of a line from 30 miles west of
Mosinee WI to 45 miles north of Oshkosh WI. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU5).

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 273…WW 274…

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
27030.

…Hart

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW5
WW 275 SEVERE TSTM WI 130115Z – 130600Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
30W CWA/MOSINEE WI/ – 45N OSH/OSHKOSH WI/
..AVIATION COORDS.. 45NM N/S /52E EAU – 16WNW GRB/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27030.

LAT…LON 45509027 45348855 43908855 44049027

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.

Watch 275 Status Report Message has not been issued yet.

Note:  Click for Complete Product Text.TornadoesProbability of 2 or more tornadoes

Low ( 2 inches

Low (20%)

Combined Severe Hail/WindProbability 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.

MIL OSI USA News

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