High Wind Warning 27, NWS Riverton, WY

373 
WWUS75 KRIW 152026
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
126 PM MST Wed Nov 15 2017

...Another round of strong wind likely for the Cody Foothills
late tonight into Thursday morning...
...Strong winds possible in the Lander Foothills late tonight
through about sunrise Thursday...
...Strong winds possible from southeast Fremont to Natrona County
on Thursday...

.Strong mountain top winds will likely mix to the surface in the
Cody Foothills tonight into Thursday Morning. Strong mid level 
winds may mix to the surface from Jeffrey City to Casper 
Thursday.

WYZ030-152130-
/O.CAN.KRIW.HW.A.0022.171116T1600Z-171117T0100Z/
East Sweetwater County-
Including the city of Wamsutter
126 PM MST Wed Nov 15 2017

...HIGH WIND WATCH IS CANCELLED...

The National Weather Service in Riverton has cancelled the High
Wind Watch. 

The potential for high winds across eastern Sweetwater County has
diminished for Thursday and thus the high wind watch has been
cancelled. It will still be windy but gusts will be more in the 40
to 50 mph range instead of 60 mph plus.

$$

WYZ003-161000-
/O.CON.KRIW.HW.W.0027.171116T0300Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
126 PM MST Wed Nov 15 2017

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
11 AM MST THURSDAY...

* TIMING...Wind will increase rapidly tonight and continue into
  Thursday morning. The strongest winds will likely occur in the
  early morning hours through about sunrise.

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds 
  are quite possible in and near Clark. 

* IMPACTS...Strong crosswinds along highway 120 from south of 
  Cody to the Clark area will likely impact travel during this 
  period. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-161000-
/O.NEW.KRIW.HW.A.0023.171116T0900Z-171116T1500Z/
Lander Foothills-
Including the city of Lander
126 PM MST Wed Nov 15 2017

...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...

The National Weather Service in Riverton has issued a High Wind
Watch, which is in effect from late tonight through Thursday
morning. 

* TIMING...Very strong southwest winds may develop rapidly along
  the Lander Foothills early Thursday morning and continue through
  about sunrise Thursday.

* WINDS...West 30 to 40 mph with gusts around 60 mph possible.

* IMPACTS...Travellers along 287 between Lander and Fort Washakie
  may experience very strong and erratic crosswinds early
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

WYZ019-020-161000-
/O.CON.KRIW.HW.A.0022.171116T1600Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
126 PM MST Wed Nov 15 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY AFTERNOON...

* TIMING...Winds increasing Thursday morning and becoming strong 
  from midday Thursday through Thursday afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

175 
WWUS75 KRIW 160508
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1008 PM MST Wed Nov 15 2017

...Another round of strong wind likely for the Cody Foothills
late tonight into Thursday morning... ...Strong winds likely in 
the Lander Foothills late tonight through about sunrise 
Thursday... ...Strong winds possible from southeast Fremont to 
Natrona County on Thursday...

.Strong mountain top winds will likely mix to the surface in the
Cody Foothills tonight into Thursday Morning. Strong mid level
winds may mix to the surface from Jeffrey City to Casper
Thursday.

WYZ018-161315-
/O.UPG.KRIW.HW.A.0023.171116T0900Z-171116T1500Z/
/O.EXB.KRIW.HW.W.0027.171116T0600Z-171116T1400Z/
Lander Foothills-
Including the city of Lander
1008 PM MST Wed Nov 15 2017

...HIGH WIND WARNING IN EFFECT UNTIL 7 AM MST THURSDAY...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect until 7 AM MST Thursday. The High
Wind Watch is no longer in effect. 

* TIMING...Very strong southwest winds will likely develop 
  rapidly along the Lander Foothills early Thursday morning and 
  continue through about sunrise Thursday. 

* WINDS...West 30 to 40 mph with gusts around 60 mph possible.

* IMPACTS...Travellers along 287 between Lander and Fort 
  Washakie may experience very strong and erratic crosswinds 
  early Thursday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ003-161315-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
1008 PM MST Wed Nov 15 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THURSDAY...

* TIMING...Wind will increase rapidly tonight and continue into 
  Thursday morning. The strongest winds will likely occur in the 
  early morning hours through about sunrise. 

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds 
  are quite possible in and near Clark. 

* IMPACTS...Strong crosswinds along highway 120 from south of 
  Cody to the Clark area will likely impact travel during this 
  period. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-161315-
/O.CON.KRIW.HW.A.0022.171116T1600Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
1008 PM MST Wed Nov 15 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM 9 AM MST THURSDAY
THROUGH THURSDAY AFTERNOON...

* TIMING...Winds increasing Thursday morning and becoming strong 
  from midday Thursday through Thursday afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

458 
WWUS75 KRIW 160820
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
120 AM MST Thu Nov 16 2017

...Another round of strong wind likely for the Cody Foothills
into this morning... ...Strong winds likely in the Lander 
Foothills until around sunrise this morning... ...Strong winds 
likely from southeast Fremont to Natrona County today...

.Strong mountain top winds will likely mix to the surface in the
Cody Foothills tonight into Thursday Morning. Strong mid level
winds may mix to the surface from Jeffrey City to Casper
Thursday.

WYZ019-020-161900-
/O.UPG.KRIW.HW.A.0022.171116T1600Z-171117T0100Z/
/O.EXB.KRIW.HW.W.0027.171116T1600Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
120 AM MST Thu Nov 16 2017

...HIGH WIND WARNING IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MST
THIS EVENING...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect from 9 AM this morning to 6 PM MST
this evening. The High Wind Watch is no longer in effect. 

* TIMING...Winds increasing this morning and becoming strong from
  midday Thursday through Thursday afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ003-161800-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
120 AM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* TIMING...Wind will increase late tonight and continue into 
  Thursday morning. The strongest winds will likely occur in the 
  early morning hours through about sunrise. 

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds 
  are quite possible in and near Clark. 

* IMPACTS...Strong crosswinds along highway 120 from south of 
  Cody to the Clark area will likely impact travel during this 
  period. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-161400-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171116T1400Z/
Lander Foothills-
Including the city of Lander
120 AM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 AM MST THIS
MORNING...

* TIMING...Strong southwest winds will likely develop rapidly
  along the Lander Foothills early this morning and continue
  through about sunrise. 

* WINDS...West 30 to 40 mph with gusts around 60 mph possible.

* IMPACTS...Travelers along 287 between Lander and Fort Washakie 
  may experience very strong and erratic crosswinds early 
  Thursday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

128 
WWUS75 KRIW 161349
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
649 AM MST Thu Nov 16 2017

...Another round of strong wind likely for the Cody Foothills
this morning... 

...Strong winds likely from southeast Fremont county
to Natrona County all day...

WYZ018-161500-
/O.EXP.KRIW.HW.W.0027.000000T0000Z-171116T1400Z/
Lander Foothills-
Including the city of Lander
649 AM MST Thu Nov 16 2017

...HIGH WIND WARNING WILL EXPIRE AT 7 AM MST THIS MORNING...

Wind speeds of 25 to 35 mph with gusts to 50 mph will still occur
today along the foothills. Widespread high wind gusts are not
expected. Thus, the high wind warning will be allowed to expire 
at 7 AM MST. 

$$

WYZ003-161800-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
649 AM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* TIMING...Strong wind gusts will continue this morning. 

* WINDS...West 30 to 40 mph with gusts to 60 mph. Stronger winds 
  are quite possible in and near Clark. 

* IMPACTS...Strong crosswinds along highway 120 from south of 
  Cody to the Clark area will likely impact travel during this 
  period. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-170100-
/O.CON.KRIW.HW.W.0027.171116T1600Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
649 AM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* TIMING...Winds have been increasing this morning and will become
  stronger today through the afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

467 
WWUS75 KRIW 161746
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1046 AM MST Thu Nov 16 2017

...High winds for portions of Central Wyoming into this evening...

WYZ003-161900-
/O.EXP.KRIW.HW.W.0027.000000T0000Z-171116T1800Z/
Cody Foothills-
Including the cities of Cody and Meeteetse
1046 AM MST Thu Nov 16 2017

...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING...

Strong and gusty wind will continue at times into this evening but
the threat of high winds has diminished. Travellers and residents
can still expect occasional west wind of 25 to 35 mph with gusts
of 40 to 55 mph in the winder locales.

$$

WYZ018-162300-
/O.EXB.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
1046 AM MST Thu Nov 16 2017

...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect until 11 PM MST this evening. 

* TIMING...Winds have been increasing this morning and will become
  stronger through the afternoon and continue through the evening
  hours. 

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds on highway 287 will pose a risk to 
  high profile lightweight vehicles in addition to weakened or 
  dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-162300-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
1046 AM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* TIMING...Winds have been increasing this morning and will 
  become stronger today through the afternoon. 

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile
  lightweight vehicles in addition to weakened or dead trees,
  including interstate 25, highway 20 26, 220 and along Outer
  Drive on the south side of Casper. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

778 
WWUS75 KRIW 161933
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1233 PM MST Thu Nov 16 2017

...High winds for portions of Central Wyoming into this evening...

WYZ019-020-170100-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
1233 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* TIMING...Very strong winds will continue through the afternoon.
 
* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees, 
  including interstate 25, highway 20 26, 220 and along Outer 
  Drive on the south side of Casper. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-170115-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
1233 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...Very strong and erratic winds will continue through the
  evening hours. Winds have already gusted over 60 mph today 
  between Lander and Fort Washakie.

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds on highway 287 will pose a risk to 
  high profile lightweight vehicles in addition to weakened or 
  dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

987 
WWUS75 KRIW 162111
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
211 PM MST Thu Nov 16 2017

...High winds for portions of Central Wyoming into this evening...

WYZ010-011-170115-
/O.EXB.KRIW.HW.W.0027.000000T0000Z-171117T0300Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
211 PM MST Thu Nov 16 2017

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM MST THIS EVENING...

The National Weather Service in Riverton has issued a High Wind
Warning, which is in effect until 8 PM MST this evening. 

* TIMING...Very strong winds will continue through this evening.

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile
  lightweight vehicles in addition to weakened or dead trees,
  including interstate 25 and 90. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ019-020-170100-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
211 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* TIMING...Very strong winds will continue through the afternoon.

* WINDS...Southwest 30 to 40 mph with gusts to 60 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees, 
  including interstate 25, highway 20 26, 220 and along Outer 
  Drive on the south side of Casper. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ018-170115-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
211 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...Very strong and erratic winds will continue through 
  the evening hours. Winds have already gusted over 60 mph today 
  between Lander and Fort Washakie. 

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds on highway 287 will pose a risk to 
  high profile lightweight vehicles in addition to weakened or 
  dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

892 
WWUS75 KRIW 170059
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
559 PM MST Thu Nov 16 2017

...High winds for portions of Central Wyoming into this evening...

WYZ019-020-170200-
/O.EXP.KRIW.HW.W.0027.000000T0000Z-171117T0100Z/
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-
Including the cities of Jeffrey City and Casper
559 PM MST Thu Nov 16 2017

...HIGH WIND WARNING WILL EXPIRE AT 6 PM MST THIS EVENING...

The threat for high winds across the warning area has diminished
and the high wind warning for the area is expiring. It will still
be windy, but gusts will be more in the 40 to 50 mph range 
instead of 60 mph plus. 

$$

WYZ018-170600-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
559 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...Very strong and erratic winds will continue through 
  the evening hours. Winds have already gusted over 60 mph today 
  between Lander and Fort Washakie. 

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds on highway 287 will pose a risk to 
  high profile lightweight vehicles in addition to weakened or 
  dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WYZ010-011-170300-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0300Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
559 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* TIMING...Very strong winds will continue through this evening.

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds will pose a risk to high profile 
  lightweight vehicles in addition to weakened or dead trees, 
  including interstate 25 and 90. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

336 
WWUS75 KRIW 170302
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
802 PM MST Thu Nov 16 2017

...High winds for portions of Central Wyoming into this evening...

WYZ010-011-170415-
/O.EXP.KRIW.HW.W.0027.000000T0000Z-171117T0300Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
802 PM MST Thu Nov 16 2017

...HIGH WIND WARNING HAS EXPIRED...

The threat for high winds across the warning area has diminished
and the high wind warning for the area has expired. It will still
be windy, but gusts will be more in the 40 mph range.


$$

WYZ018-170600-
/O.CON.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
802 PM MST Thu Nov 16 2017

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* TIMING...Very strong and erratic winds will continue through 
  the evening hours. Winds have already gusted over 60 mph today 
  between Lander and Fort Washakie. 

* WINDS...Southwest 30 to 40 mph with gusts to 65 mph.

* IMPACTS...Strong crosswinds on highway 287 will pose a risk to 
  high profile lightweight vehicles in addition to weakened or 
  dead trees. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

133 
WWUS75 KRIW 170554
NPWRIW

URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
1054 PM MST Thu Nov 16 2017

WYZ018-170700-
/O.EXP.KRIW.HW.W.0027.000000T0000Z-171117T0600Z/
Lander Foothills-
Including the city of Lander
1054 PM MST Thu Nov 16 2017

...HIGH WIND WARNING WILL EXPIRE AT 11 PM MST THIS EVENING...

While occasionally gusty southwest winds will continue tonight,
they will remain well below high wind criteria. Therefore, the 
High Wind Warning will be allowed to expire at 11 PM tonight.  

$$

Area Forecast Discussion
National Weather Service Riverton WY
1032 PM MST Tue Nov 14 2017

.SHORT TERM...(This evening through Friday)
Issued at 123 PM MST Tue Nov 14 2017

Trough and frontal boundary moving across the area attm with areas
of gusty to strong wind and a few areas of light snow/rain or
flurries (mainly mtns/foothills and near the nrn piece of this
system in the nrn Bighorn Basin). Shortwave ridging then moves in
tonight through Wednesday. A clearing sky should result in some
chilly overnight lows (nothing unusual) with basin/valley
inversions coming into play for highs on Wednesday. The one plus
is the valleys/basins have little or no snowcover so mid-November
inversions will not be nearly as strong as they could be! After
this brief quiet period, we have to deal with a fairly decent, 36
hour or so cold system beginning later Wednesday evening into
Friday morning. This system off/along the B.C. coast is quite
cold. Ahead of it though, the moist sw flow that develops will be
quite mild, especially in swrn Wyoming. Even the Jackson Valley
will likely be too warm for any snowfall (for all but maybe the
highest spots) until Thursday night. The moist sw flow and
potential right entrance region of first jet streak will likely
get the pcpn going at some point Wednesday night. NAM and GFS are
pretty similar but I still have some concern on pcpn amounts and
timing that the models are showing. Hard to ignore the time
heights across the Tetons especially though with deeply saturated
airmass with 30-40kt mtn top flow and moderate omega through the
layer. With time the area looks better and better as the cold
front approaches late Thursday afternoon, jet streak forcing
starts again combined with increasing H7-H5 lapse rates that
increase to over 7C/km Thursday evening and peak over 8C Friday
morning when the GFS is showing a slightly negative LI even. The
forcing acting on the increasingly steep lapse rates should
produce some pretty decent/impressive snowfall rates Thursday
night into Friday morning. As the trough swings through the flow
turns wnw, the Tetons should keep some impressive snowfall rates
going at least into the morning Friday. Winter storm watch will be
needed to cover this situation from 07z Thursday to 19z Friday
for the Tetons. Other mountain areas will likely need highlights
at Thursday into Friday morning. The western valleys will change
to snow Thursday night with the favored post trough areas snowing
into Friday. Based on potential heavy snow period with and behind
fropa, we will likely need some highlights across the far west
valleys for Thursday night into Friday. East of the divide, the
high wind potential returns to the Cody Foothills later Wednesday
night through Thursday morning when the right front quad of same
jet streak that is helping the far west with right entrance region
support is in the area. Strong mtn top flow could easily mix down
to the surface with potential mtn wave coming into play. Will
look more at the mesoscale models tomorrow to see how that looks.
High wind watch will be issued for this area for this potential.
The wind corridor will also become quite windy Thursday with
potential watch needed down the road. Many/most areas will mix
Thursday leading to the central basins warming considerably over
Wednesday's values (50s and possibly a few lower 60s). Cold front
than moves through east of the divide Thursday night with a swath
of rain showers turning to snow showers by early Friday in the far
north and Friday morning elsewhere. A cold west to northwest wind
will continue behind the cold front through the day Friday along
with sharply colder temps compared to Thursday.

.LONG TERM...(Friday night through Tuesday)
Issued at 123 PM MST Tue Nov 14 2017

The timing of the troughpa scheduled late Friday appears to be
handled better by the current models than the previous run with the
GFS pushing the trough through Central Wyoming at 00Z Saturday and
the ECMWF through Eastern Idaho at 00Z Saturday and then Central
Wyoming by 06Z Saturday with the previous runs having had much more
of a discrepancy in the timing than this. The Euro still splits the
energy more than the GFS, hence the slightly higher pops in the
southeast for Friday evening. The Canadian is actually a compromise
of the GFS and the Euro. Overall, expect decreasing snowfall Friday
night. Expect dry weather along with seasonal temperatures Saturday
and Sunday as high pressure builds in from the west. This ridge is
forecast to retrograde a bit farther west early next week. The ECMWF
brings the next Pacific trough into the area Tuesday with an upper
low centered over Northern Wyoming. The GFS has this trough playing
out as a weak shortwave tracking southeast across Wyoming Tuesday.
The Canadian appears to be more of an outlier with a clipper type
system tracking southeast across Wyoming Monday. The Canadian could
be a likely scenario given the retrograding flattening ridge. So for
now, have chc pops for Monday for Western WY, a short break Monday
evening, and then chc pops in the west again for late Monday
night into Tuesday along with seasonal temps.

&&

.AVIATION...(For the 06Z TAFS through 06Z Wednesday night)
Issued at 1014 PM MST Tue Nov 14 2017

East of the Divide...KCOD/KCPR/KLND/KRIW/KWRL Routes

Conditions will be VFR through the forecast period over the lower
elevations except for some MVFR ceilings vicinity KCPR until 10z.
Areas of mvfr ceilings and visibility in snow showers will occur
until 12z over the Absaroka Mountains with clearing after 12z.
Gusty west to southwest wind 15 - 30kts will develop between
18Z - 21Z Wed over and near the east slopes of the mountains
and from KRKS to KCPR.  Over and near the Continental Divide
areas of MVFR to IFR ceilings and visibility reduced in snow and
fog will obscure the higher mountains becoming widespread above
9000 feet from 03z - 06z Thu.

West of the Divide...KBPI/KJAC/KPNA/KRKS Routes

Conditions will be VFR through 00z Thu over the lower elevations.
Areas of MVFR to IFR ceilings and visibility in snow showers will
occur until 12z over the Mountains with clearing after 12z. MVFR
to IFR ceilings and visibility reduced in snow and fog will
increase across the west from 00z - 03z Thu with mountains
becoming obscured as deep pacific moisture in southwest flow aloft
spreads east from Idaho and northern Utah. Gusty west to
southwest wind 15 - 30kts will develop between 20Z - 23Z Wed.

&&

.FIRE WEATHER...
Issued AT 123 PM MST Tue Nov 14 2017

Many areas will be windy into the evening hours before decreasing
as a cold front and upper level disturbance move east across the
area. Hyr mtns will remain obscd at times before clouds decrease
later this evening or overnight. A brief ridge of high pressure
will build in Wednesday before the next storm approaches the west.
Snow will develop in the western mountains Wednesday night and
continue into Friday. Rain will fall in the western valleys
Wednesday night and Thursday before changing to snow Thursday
night. Strong west to southwest winds will develop again east of
the divide later Wednesday night into Thursday.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from late Wednesday night through Friday
morning for WYZ012.

High Wind Watch from late Wednesday night through Thursday
morning for WYZ003.

&&

SHORT TERM...Skrbac
LONG TERM...Lipson
AVIATION...Baker
FIRE WEATHER...Skrbac

Hazardous Weather Outlook
National Weather Service Riverton WY
1247 PM MST Tue Nov 14 2017

WYZ001>020-022>030-151200-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
1247 PM MST Tue Nov 14 2017

...Winter Storm Watch for the Tetons and Gros Ventre Ranges late
Wednesday Night through Friday Morning...
...High Wind Watch for the Cody Foothills late Wednesday Night
through Thursday Morning...

This Hazardous Weather Outlook is for Western and Central
Wyoming.

.DAY ONE...Tonight and Tuesday.

Mainly light snow in the western mountains. Strong winds along the
east slopes of the Divide and from South Pass to Casper.

.DAYS TWO THROUGH SEVEN...Wednesday through Sunday.

Wednesday night through Friday morning...Strong winds may develop
ahead of the next cold front Wednesday night and Thursday along
the east slopes of the Continental Divide, from South Pass to
Casper and the Cody Foothills. Snow will increase in the western
mountains late Wednesday Night, with rain or a rain and snow mix
in the western valleys through Thursday. Snow, heavy at times,
will continue in the western mountains Thursday through at least
Friday morning before decreasing. Light to moderate snow is
possible in the west Thursday night into Friday morning, with snow
levels lowering to valley floors. Some light snow accumulations
are possible east of the Divide and along the Interstate 80
corridor Friday morning.

.SPOTTER INFORMATION STATEMENT...

Spotters are urged to report snowfall amounts and wind gusts above
45 mph.

Team Riverton