Winter Weather Warnings / Watches / Advisories
Issued by NWS Denver/Boulder, CO

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WWUS45 KBOU 180113
WSWBOU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Denver/Boulder CO
713 PM MDT Wed May 17 2017

...HEAVY SNOW EXPECTED FOR THE MOUNTAINS AND NORTHERN FRONT RANGE
FOOTHILLS THROUGH FRIDAY...

.A strong spring storm will drop south across the Great Basin
tonight and Thursday. It then moves slowly east across Colorado
Thursday night through Friday evening. Significant snow is
expected with this storm if it continues on the current forecasted
track. If the storm track moves further north, then the Southern
Front Range Foothills may receive much less snowfall.

This storm is expected to bring rain and possibly snow to the
Urban Corridor including the Denver Metro area. The coldest air
and best chance for snow is expected to be Thursday night and
Friday for the Denver area. Significant snow for the Denver area
is possible.

COZ033-034-180915-
/O.CON.KBOU.WS.W.0011.000000T0000Z-170520T0000Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
713 PM MDT Wed May 17 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT FRIDAY...

* TIMING...snow will become widespread tonight and is expected to
  to continue through Friday afternoon.

* SNOW ACCUMULATIONS...12 to 24 inches of snow expected with up
  to 36 inches on favored east slopes, including Rocky Mountain
  National Park.

* WIND/VISIBILITY...Visibility will fall below a quarter mile in
  heavy snow.

* IMPACTS...Roads will become snow and slush covered. Wet snow
  may accumulate on leafed out trees, resulting in broken tree
  limbs and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel...keep an extra flashlight...
food...and water in your vehicle in case of an emergency.

&&

$$

COZ036-180915-
/O.CON.KBOU.WS.W.0011.170518T0600Z-170520T0000Z/
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
713 PM MDT Wed May 17 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* TIMING...Rain is expected to change to tonight as cold air
  moves into the area. Snow is expected to continue through Friday
  afternoon before it dissipates.

* SNOW ACCUMULATIONS...12 to 24 inches.

* WIND/VISIBILITY...Visibility will fall below a quarter mile in
  heavy snow.

* IMPACTS...Roads will likely become snow and slush covered. Wet
  snow may accumulate on leafed out trees, resulting in broken
  tree limbs and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel...keep an extra flashlight...
food...and water in your vehicle in case of an emergency.

&&

$$

COZ035-180915-
/O.CON.KBOU.WS.W.0011.170518T0600Z-170520T0000Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
713 PM MDT Wed May 17 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT FRIDAY...

* TIMING...Rain is expected to change to snow tonight as cold air
  moves into the area. Snow is expected to continue through
  Friday afternoon before it dissipates.

* SNOW ACCUMULATIONS...12 to 24 inches of snow with up to 36
  inches on favored east slopes.

* WIND/VISIBILITY...Visibility will fall below a quarter mile in
  heavy snow.

* IMPACTS...Roads will likely become snow and slush covered. Wet
  snow may accumulate on leafed out trees, resulting in broken
  tree limbs and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel...keep an extra flashlight...
food...and water in your vehicle in case of an emergency.

&&

$$

COZ038>041-180915-
/O.CON.KBOU.WS.A.0013.170519T0000Z-170520T0000Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
713 PM MDT Wed May 17 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH FRIDAY AFTERNOON...

* TIMING...Rain could change to snow early Thursday evening and
  continue into Friday afternoon.

* SNOW ACCUMULATIONS...Up to 12 inches possible with the highest
  amounts near the foothills and over the Palmer Ridge.

* WIND/VISIBILITY...Visibility could fall below a quarter mile
  in heavy snow.

* IMPACTS...Roads could become snow and slush covered. Wet snow
  may accumulate on leafed out trees, resulting in broken tree
  limbs and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is a potential for significant
snow...sleet...or ice accumulations that may impact travel.
Continue to monitor the latest forecasts.

&&

$$



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