Today's NOAA Weather Map Forecast

There will be a chance of showers and thunderstorms in the
mountains today with only a slight chance of showers and
thunderstorms elsewhere. Brief heavy rain, small hail and wind
gusts to 40 mph will be possible with any of the storms.
http://www.crh.noaa.gov/bou/

Warmer temperatures expected today...with scattered afternoon and evening showers and thunderstorms possible across the mountains...some of which may produce brief heavy rain and small hail. Only isolated storms with light rain and gusty winds are expected across the adjacent plains.

Hazardous Weather Outlook for Park, Jefferson, Summit, Clear Creek, and Gilpin Counties

Showers and thunderstorms will increase by midday in the mountains and then spread across the foothills and Front Range Urban Corridor this afternoon. Some of this activity will move across the northeast plains this evening. The stronger storms will be capable of producing from 1 to 2 inches of rain in the less than 45 minutes especially from the southern foothills across the Denver area and Palmer Divide. In addition to the heavy rain, small hail and gusty winds to 40 mph may also occur. For tonight, showers and a few thunderstorms may linger overnight in the mountains, foothills and along the Urban Corridor as another disturbance moves across the state.

A storm system will move into northwest Colorado by late tonight.
As this system gets closer snow will increase in the northern
mountains tonight and may be heavy at times. At lower elevations
rain showers will increase tonight mainly from Denver north to the
Wyoming border and in the northern foothills. The rain will change
to snow in the northern foothills after midnight. Some snow may
mix in with the rain towards sunrise over northern areas of the
Front Range Urban Corridor.

For today and tonight:
Strong, gusty and erratic chinook winds will continue to develop
in the Front Range mountains, foothills and nearby plains this
afternoon and will persist tonight. Gusts could approach 80 mph
in these areas. Strong westerly winds may also spread out across
the plains during the day, but speeds are not expected to exceed
50 mph. Drivers of light weight and high profile vehicles will
need to be alert for the strong and erratic cross winds.
Otherwise, scattered snow showers will continue in the high
country through this evening and will increase overnight in
advance of a potent winter storm system.


For Tuesday through Sunday:
Sharply colder weather and snow will arrive with an arctic cold
front on Tuesday, with cold weather continuing into this
weekend. From Wednesday through Friday, high temperatures will
be in the single digits and low teens with overnight lows
below zero. There may be some moderation over the weekend but
temperatures should stay well below freezing. The next week may
be the coldest week in the last 15 years.

The main period of snow will begin in the mountains early
Tuesday, and on the plains later in the afternoon or early
evening. The snow is expected to diminish late Wednesday.
Current estimates of snowfall for this period is from 1 to 2 feet
in the mountains, with 3 to 8 inches on the plains. There may be
localized areas of heavier snowfall. Additional snow is possible
after Wednesday, but any snowfall later in the week would be
light.


Spotter reports of strong winds or wind damage will be
appreciated.

The cold front that has moved across the plains will bring a better chance of snow all the way south toward the Denver Metro area overnight. Most of the accumulating snowfall on the plains of 1-2� will likely stay just east of the Front Range Urban Corridor, but there is still a threat of light snow accumulations closer to the foothills, including Denver. Mountain areas will see the heavier snow accumulations with a few inches through early Monday morning. Be prepared for winter driving conditions.

For today and tonight:
Strong winds gusting above 50 mph above 9000 feet will combine
with scattered snow showers to create very low visibilities in the
mountains this morning. The snow will decrease today, but winds
will persist through the day and tonight. On the plains snow will
linger this morning, but it will be mostly dry this afternoon.


For Tuesday through Sunday:
An upper level weather disturbance accompanied by a surface cold
front will swing across north central and northeast Colorado on
Tuesday. The cold front is expected to arrive in the afternoon
bringing cooler temperatures and gusty northerly winds to the
plains. Mountain areas will continue to see periods of light
snow, mainly over and west of the Continental Divide and strong
gusty west winds east of the divide. Where will also be a slight
chance of rain and snow over and near the Front Range foothills
and Palmer Divide during the afternoon and evening hours. Dry
conditions will return to the region Christmas Day with gradual
warming through Friday.


Spotter activation will not be needed today or tonight, but we
would appreciate snow and wind reports.

http://www.crh.noaa.gov/wxstory.php?site=bou

For today and tonight:
Moisture will spread back into the mountains during the afternoon
with snow increasing again by this evening. The snow could be
heavy at times tonight. Accumulations of 4 to 7 inches can be
expected by Friday morning, with higher amounts possible around
Rabbit Ears Pass. Winds will also increase, with speeds of 25 to
40 mph tonight and gusts as high as 70 mph above timberline. For
the plains, dry conditions will prevail with high temperatures in
the 40s.


For Friday through Wednesday:
Snowfall will diminish early Friday morning in the mountains but
then increase again Friday afternoon and continue Friday night.
Additional snowfall of 4 to 7 inches can be expected during this
time. Strong westerly winds continue to produce hazardous
conditions through Friday night. Speeds up to 70 mph my be
possible over the high mountain passes and exposed terrain.

After dry and mild conditions on Saturday, another weather system
will move across the state on Sunday bringing snow and gusty
winds to the high country and a slight chance of rain or snow
showers and cool northwest winds to the plains.


Spotter activation will not be needed today or tonight.
http://www.crh.noaa.gov/bou/

For today and tonight:
A warm, dry and breezy day is expected under a building upper
ridge and with a deepening surface low. Gusty west winds of 30 to
40 mph will occur in the foothills, and northwest winds will gust
between 25 and 30 mph over the far northeastern plains. Low
humidities in the mid teens over the plains will combine with the
gusty northwest winds to elevate fire weather concerns, mainly
between 11 AM and 2 PM. The main area of concern will include
Logan, Sedgwick, Phillips and Washington counties.


For Wednesday through Monday:
Snow is expected to develop across the northeast plains and Front
Range foothills Wednesday night. At this time, mainly light
snowfall is expected with possible accumulations in the 1 to 3
inch range. Temperatures will turn much colder Wednesday night
which may result in a slick and slow commute Thursday
morning, even as the snow comes to an end. A cold front and
passing upper level disturbance will bring the snow and much
colder temperatures.

Dry and warmer weather will then develop by Friday and remain in
place through the weekend.


Spotter activation will not be needed today or tonight.

http://www.crh.noaa.gov/bou/

For today and tonight:
A cold front is expected to push south across the plains around
noon today with snow developing this evening. This system will
mainly stay along and east of the Continental Divide, so clouds
pushed against the foothills and eastern slopes of the Front Range
mountains will cause poor visibilities. Snow will continue through
the night over the eastern high terrain and plains and into
Thursday morning. Snow amounts overnight are expected to be
between 1 to 2 inches over the plains and 2 to 4 inches over the
metro areas, eastern Front Range mountains and foothills.
Temperatures will drop into the low teens to possible single
digits. Roads will likely become icy and slick causing hazardous
travel conditions. The snow will begin to diminish towards
sunrise.


For Thursday through Tuesday:
Lingering light snow or flurries will come to an end in most
locations Thursday morning, but the morning commute will likely
be slow due to snowpacked or icy roads from tonights snowfall. Any
additional snowfall Thursday morning will be less than an inch and
mainly south of I-70.

Dry and warmer weather will then develop Friday and persist
through the weekend. Temperatures may cool again by Sunday night
or Monday with a slight chance of snow as another cold front
approaches the region.


Spotter activation will not be needed today or tonight.

For today and tonight:
Snow will gradually develop in the mountains of north central
Colorado this afternoon and become more widespread and heavier
this evening. Wind gusts from 60 to 70 mph will cause whiteout
conditions above timberline and on the higher passes overnight.
High country accumulations by late tonight will range from 7 to 14
inches with 4 to 8 inches in the mountain valleys west of the
Continental Divide by morning.

Along the east slope of the Front Range, gusty west winds will
continue to strengthen through the afternoon with gusts
approaching 70 mph in areas prone to high winds such as in the
foothills of Jefferson and Boulder counties. By this evening high
winds are expected to become more widespread over the Front Range
and in foothills with potential gusts to around 80 mph until
around 3 AM MST tonight. The strong and gusty winds will produce
blowing snow causing near white out conditions. Near the base of
the foothills, wind gusts to near 60 mph this evening will also
produce blowing snow and reduced visibilities in open areas such
as along Highway 93 between golden and Boulder.


For Thursday through Tuesday:
Snow, heavy at times is expected to continue over the mountains
and high valleys on Thursday into Thursday night. Accumulations
Thursday and Thursday night will be significant, with 7 to 14
more inches of snow. West winds gusting up to 50 mph will cause
blowing snow. Snow will continue in the mountains on Friday,
although intensities will be lighter. Across the plains snow will
be likely late Thursday afternoon and Thursday night with another
round of snow possible Friday. Accumulating snow can be expected.
There will be a slight chance of snow in the mountains Saturday
then again on Monday. Dry conditions will prevail Saturday through
Tuesday. Colder air will spread over the outlook area by the weekend
with temperatures much below normal for all the forecast area
through next Tuesday.


Spotter activation will not be needed today or tonight but snow
reports will be appreciated.