Winter Weather Warnings / Watches / Advisories
Issued by NWS Riverton, WY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
000
WWUS45 KRIW 301838
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1238 PM MDT Thu Mar 30 2017

...A major winter storm will impact quite a bit of the higher
elevations and much of Fremont County tonight through Friday night...

.A strong upper level low will bring a return to winter weather
for many areas. This upper low will track towards the 4-corners
region tonight and remain in the area through Friday night. A very
moist flow will move into the area with heavy amounts of rain,
snow and rain snow mix depending on elevation and time of day.
This is a very challenging forecast for snow levels in the lowest
elevations.

WYZ014-015-311200-
/O.UPG.KRIW.WS.A.0014.170331T0600Z-170401T0900Z/
/O.NEW.KRIW.BZ.W.0002.170331T0300Z-170401T1200Z/
Wind River Mountains West-Wind River Mountains East-
1238 PM MDT Thu Mar 30 2017

...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO 6 AM MDT
SATURDAY...

The National Weather Service in Riverton has issued a Blizzard
Warning, which is in effect from 9 PM this evening to 6 AM MDT
Saturday. The Winter Storm Watch is no longer in effect.

* TIMING...Snow...heavy at times...is expected to develop quickly
  late this evening and continue through late Friday night. A
  northeast wind will develop quickly this evening and increase
  overnight, continuing through Friday. Blizzard conditions are
  expected over South Pass much of this time.

* SNOWFALL...2 to 3 feet.

* WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy
  snow will likely produce near zero visibility at times in
  blizzard conditions.

* Main impact...Travel over South Pass may become impossible by
  later tonight through Friday night due to heavy snow and 50 to
  60 mph wind gusts creating zero visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

WYZ019-311200-
/O.UPG.KRIW.WS.A.0014.170331T0600Z-170401T0900Z/
/O.NEW.KRIW.WS.W.0011.170331T0600Z-170401T1200Z/
Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
1238 PM MDT Thu Mar 30 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
MDT SATURDAY...

The National Weather Service in Riverton has issued a Winter
Storm Warning for snow and wind, which is in effect from midnight
tonight to 6 AM MDT Saturday. The Winter Storm Watch is no longer
in effect.

* TIMING...Snow...heavy at times...is expected to develop towards
  midnight and continue through Friday night for elevations above
  6500 feet. Some of the lower elevations like Jeffrey City and
  Sweetwater Station may see a rain or a rain snow mixture change
  to snow later Friday into Friday evening with several inches possible.

* SNOWFALL...10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere.

* WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy
  snow will likely produce near zero visibility at times in
  blizzard conditions over Beaver Rim and the Green Mountains and
  Rattlesnake Range above 6500 feet.

* MAIN IMPACT...Travel over Beaver Rim may become impossible by
  Friday due to heavy snow and 45 mph plus wind gusts.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ018-311200-
/O.UPG.KRIW.WS.A.0014.170331T1200Z-170401T0900Z/
/O.NEW.KRIW.WS.W.0011.170331T0900Z-170401T1200Z/
Lander Foothills-
Including the city of Lander
1238 PM MDT Thu Mar 30 2017

...WINTER STORM WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 AM MDT
SATURDAY...

The National Weather Service in Riverton has issued a Winter
Storm Warning for snow and wind, which is in effect from 3 AM
Friday to 6 AM MDT Saturday. The Winter Storm Watch is no longer
in effect.

* TIMING...Rain will mix with snow and change over to snow Friday
  morning and become heavy at times into Friday evening. The
  higher elevations including Sinks Canyon will likely change to
  snow after 3 am with other areas not changing over until after 6
  am. This storm will be extremely elevation dependent and some of
  the lowest elevations could change back and forth between rain
  and snow several times on Friday.

* SNOWFALL...10 to 15 inches in Lander with up to 2 feet in Sinks
  Canyon State Park. Hudson will likely vary from 2 to 5 inches.

* VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30
  mph in open areas with visibilities under one half mile at
  times.

* MAIN IMPACT...Travel may become difficult with snow covered
  and snow packed roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm warning means significant amounts of snow, and or
blowing snow are expected or occurring. This could make travel
very hazardous or impossible. If you must travel keep some food,
water, and an extra flashlight in your vehicle in case of an
emergency. Check the latest road conditions at wyoroad.info or by
dialing 5 1 1.

&&

$$

WYZ008-009-311200-
/O.NEW.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
1238 PM MDT Thu Mar 30 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT MDT FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Weather Advisory for snow and wind, which is in effect from
midnight tonight to midnight MDT Friday night.

* TIMING...Snow will develop overnight and continue through Friday
  evening before ending.

* SNOWFALL...5 to 10 inches.

* WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and
  in open areas with visibility under one half mile at times due
  to wind and snow.

* MAIN IMPACT...Travel over Granite and Powder River Passes will
  likely be impacted by slick snow covered roads and limited
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ002-007-311200-
/O.NEW.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/
Absaroka Mountains-Owl Creek and Bridger Mountains-
1238 PM MDT Thu Mar 30 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT MDT FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Weather Advisory for snow and wind, which is in effect from
midnight tonight to midnight MDT Friday night.

* TIMING...Snow will develop overnight and continue through Friday
  evening before ending.

* SNOWFALL...6 to 12 inches, the higher amounts will be above 7000
  to 8000 feet.

* WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with
  visibility under one half mile at times due to wind and snow.

* MAIN IMPACT...Backcountry travellers should be prepared for the
  wet heavy snow and limited visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ017-311200-
/O.NEW.KRIW.WW.Y.0019.170331T0900Z-170401T0900Z/
Wind River Basin-
Including the cities of Riverton and Shoshoni
1238 PM MDT Thu Mar 30 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM FRIDAY TO 3 AM MDT
SATURDAY...

The National Weather Service in Riverton has issued a Winter
Weather Advisory for wind and snow, which is in effect from 3 AM
Friday to 3 AM MDT Saturday.

* TIMING...Rain will develop tonight with the higher portions
  above 5500 to 6000 feet changing over to snow after 3 am. As
  colder air filters in Friday morning, more areas down to around
  5000 feet will see periods of snow or mixed rain and snow. When
  the coldest air arrives Friday evening, all areas that didn`t
  see snow will also see a period of snow Friday evening. This is
  still a very challenging forecast with a change in temperature
  of a degree or two making a huge difference. Please stay abreast
  of the latest forecast for your area.

* SNOWFALL...8 to 12 inches around Fort Washakie...3 to 7 inches
  above 5500 feet elsewhere and generally 2 to 4 inches for
  elevations of 5000 feet or less.

* WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in
  open areas will combine with snow at times to limit visibility
  to under one half mile.

* MAIN IMPACT...Roads may be slushy at times, especially during
  bursts of heavier snow, especially above 5500 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

Skrbac



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.