Hazardous Weather Outlook
Issued by NWS Pueblo, CO

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Hazardous Weather Outlook
National Weather Service Pueblo CO
859 AM MDT Fri Apr 28 2017

COZ058>089-093>099-291500-
Western Mosquito Range/East Lake County Above 11000 Ft-
Leadville Vicinity/Lake County Below 11000 Ft-
Eastern Sawatch Mountains above 11000 Ft-
Western Chaffee County Between 9000 and 11000 Ft-
Central Chaffee County Below 9000 Ft-
Western Mosquito Range/East Chaffee County above 9000Ft-
Saguache County West of Continental Divide Below 10000 Ft-
Saguache County East of Continental Divide below 10000 Ft-
La Garita Mountains Above 10000 Ft-
Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Ft-
Eastern San Juan Mountains Above 10000 Ft-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft-
Northern Sangre de Cristo Mountains above 11000 Ft-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Ft-
Southern Sangre de Cristo Mountains Above 11000 Ft-
Northwestern Fremont County  Above 8500Ft-
Western/Central Fremont County Below 8500 Ft-
Wet Mountain Valley Below 8500 Ft-
Wet Mountains between 6300 and 10000Ft-
Wet Mountains above 10000 Ft-
Teller County/Rampart Range above 7500fT/Pike`s Peak Between
7500 And 11000 Ft-Pikes Peak above 11000 Ft-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Ft-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Ft-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft-
Crowley County-La Junta Vicinity/Otero County-
Eastern Las Animas County-Western Kiowa County-
Eastern Kiowa County-Las Animas Vicinity/Bent County-
Lamar Vicinity/Prowers County-Springfield Vicinity/Baca County-
859 AM MDT Fri Apr 28 2017

This hazardous weather outlook is for portions of central...east
central...south central and southeast Colorado.

.DAY ONE...Today and Tonight

A developing storm system will spread snow into the mountains late
this afternoon through this evening as an upper low intensifies
over the Four Corners region. Isolated thunderstorms will be
possible over the eastern plains late this afternoon, with
lightning and wind gusts to 50 mph the main storm threats.

Rain and snow will then spread southward from the Palmer Divide
into the southeast plains this evening through the overnight hours
as the storm moves slowly across New Mexico overnight. This
system has much colder air associated with it than the past
several storms and a quicker change over to snow is expected this
evening along the I-25 corridor, with rain changing to snow across
all of the southeast plains by early Saturday morning. The
heaviest snow is expected to impact the southeast mountains and
I-25 corridor tonight with deteriorating travel conditions
expected into Saturday morning, particularly south of highway 50.
Gusty north winds 20 to 30 mph will cause areas of poor
visibilities in blowing snow. Tree damage and power outages will
be possible due to heavy wet snow accumulation on leafed out trees
and cold surfaces.

The track and strength of this storm system is still vulnerable to
change over the next 24 hours and forecast snowfall amounts may
change as well, particularly across the southeast plains. If you
have travel plans across southern Colorado please check the latest
forecasts. Some areas may see difficult to impossible travel
conditions by late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A vigorous storm system is expected to impact the region with
snow, heavy at times, in combination with gusty north winds from
Saturday into Sunday morning. Numerous winter weather warnings,
advisories and watches have been issued for southern Colorado.
Although the storm track is uncertain, particularly as it lifts
northeastward into the central plains on Sunday, some preliminary
snowfall estimates are for 6 to 12 inches for the central
mountains, Pikes Peak and northern El Paso county, with 4 to 8
inches and locally up to 1 foot for the southwest mountains. The
San Luis Valley could see 2 to 4 inches with up to 6 inches along
the valley edges, particularly in the southern portions of the
valley. However, the heaviest snowfall amounts will impact the
Wet Mountains and Sangre De Cristo mountains where 8 to 15 inches
will be possible with locally up to 2 feet possible along the
northeast facing slopes. The southern I-25 corridor and Northern
Raton Mesa region will see between 8 and 14 inches.

Considerable uncertainty remains concerning snowfall totals for
the southeast plains from Pueblo eastward to the Kansas border.
Temperatures on Saturday will hover around or slightly above
freezing, and residual warmth in ground and pavement surfaces may
lead to some melting at times. However the potential for heavy
snowfall rates, along with strong north winds gusting to 40 mph
may lead to downed tree limbs and power lines due to snow loading.
Travel may also be adversely impacted due to poor visibilities in
blowing snow along with slushy or snow covered road surfaces at
times. And the potential exists for this to be a prolonged event
with the storm now advertised to depart Sunday morning. Overall
snowfall amounts of 6 inches or more will be possible across the
plains with the heaviest amounts south of highway 50. Please
continue to monitor the latest forecasts, warnings and advisories
for the latest information.

Colder air with this storm will also lead to below freezing
temperatures across most of southern Colorado this weekend. If you
have tender vegetation outside make plans to bring them indoors
or protect them.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
likely across all of south central and southeast colorado tonight.


$$

10/31



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