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Wyoming, Green Mountains and Rattlesnake Range

Special Statement

Statement as of 4:05 AM MDT on September 05, 2015

Expires 5:00 PM EDT on September 05, 2015


... Sharp cold front to bring cooler temperatures and active
weather to start the Labor Day weekend...

An area of low pressure... and its associated cold front... will
push across the cowboy state this Holiday weekend. Isolated to
scattered afternoon showers and thunderstorms will be possible
ahead of this front today across central Wyoming. A few storms
could produce frequent lightning and gusty winds at times. In
addition... dry and breezy winds ahead of the approaching front
could bring elevated to extreme fire danger across central Wyoming
this afternoon. See the red flag warning for more details. The
mentioned cold front will push across central Wyoming this evening
through the overnight hours. This will bring mainly isolated to
scattered rain showers across central Wyoming through the
overnight hours... .with mountain snow above 8500 feet expected
across western Wyoming. Any lingering showers and mountain snow is
then expected to diminish quickly early Sunday morning.

Dry... but windy conditions are then expected for the rest of
Sunday into Labor Day. Much cooler temperatures are expected for
Sunday... with highs in the 60s and 70s. Morning lows on Monday
will be in the 40s... with slightly warmer daytime highs in the 60s
and 70s for central Wyoming.



405 am MDT Sat Sep 5 2015

... Sharp cold front to bring cooler temperatures and active
weather to start the Labor Day weekend...

An area of low pressure... and its associated cold front... will
push across the cowboy state this Holiday weekend. Isolated to
scattered afternoon showers and thunderstorms will be possible
ahead of this front today across central Wyoming. A few storms
could produce frequent lightning and gusty winds at times. In
addition... dry and breezy winds ahead of the approaching front
could bring elevated to extreme fire danger across central Wyoming
this afternoon. See the red flag warning for more details. The
mentioned cold front will push across central Wyoming this evening
through the overnight hours. This will bring mainly isolated to
scattered rain showers across central Wyoming through the
overnight hours... .with mountain snow above 8500 feet expected
across western Wyoming. Any lingering showers and mountain snow is
then expected to diminish quickly early Sunday morning.

Dry... but windy conditions are then expected for the rest of
Sunday into Labor Day. Much cooler temperatures are expected for
Sunday... with highs in the 60s and 70s. Morning lows on Monday
will be in the 40s... with slightly warmer daytime highs in the 60s
and 70s for central Wyoming.



405 am MDT Sat Sep 5 2015

... Sharp cold front to bring cooler temperatures and active
weather to start the Labor Day weekend...

An area of low pressure... and its associated cold front... will
push across the cowboy state this Holiday weekend. Isolated to
scattered afternoon showers and thunderstorms will be possible
ahead of this front today across central Wyoming. A few storms
could produce frequent lightning and gusty winds at times. In
addition... dry and breezy winds ahead of the approaching front
could bring elevated to extreme fire danger across central Wyoming
this afternoon. See the red flag warning for more details. The
mentioned cold front will push across central Wyoming this evening
through the overnight hours. This will bring mainly isolated to
scattered rain showers across central Wyoming through the
overnight hours... .with mountain snow above 8500 feet expected
across western Wyoming. Any lingering showers and mountain snow is
then expected to diminish quickly early Sunday morning.

Dry... but windy conditions are then expected for the rest of
Sunday into Labor Day. Much cooler temperatures are expected for
Sunday... with highs in the 60s and 70s. Morning lows on Monday
will be in the 40s... with slightly warmer daytime highs in the 60s
and 70s for central Wyoming.



Fire Weather Warning

Statement as of 2:55 AM MDT on September 05, 2015

Expires 11:00 PM EDT on September 06, 2015


... Red flag warning remains in effect from 1 PM this afternoon to
9 PM MDT Sunday for strong wind... low humidity and critical
lightning for fire weather zones 280... 283 and 289...

* affected area... fire weather zone 280. Fire weather zone 283.
Fire weather zone 289.

* Wind... southwest wind 15 to 25 mph with gusts 35 to 40 mph this
afternoon. A cold front will shift winds west to northwest 15 to
25 mph with gusts 30 to 35 mph tonight... continuing through
early Sunday evening.

* Minimum relative humidity... 12 to 15 percent this afternoon.
Near 10 percent Sunday afternoon.

* Lightning... isolated to widely scattered thunderstorms possible
late this afternoon and tonight.

* Impacts... any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

Precautionary/preparedness actions...

A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly. A combination of
strong winds... low relative humidity... and warm temperatures will
create extreme fire behavior.




Weather Severe Map
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Colorado - Public Information Statement
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Indiana - Air Quality Alert
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New York - Record Report
Oregon - Flash Flood Watch , Frost Advisory, Freeze Watch , Record Report
Pennsylvania - Record Report
South Dakota - Record Report
Utah - Wind Advisory , Fire Weather Warning
Washington - Record Report
Wisconsin - Special Statement
Wyoming - Fire Weather Warning , Fire Weather Watch , Special Statement