Alert archive / Colorado / Winter Storm Warnings in 2018

Winter Storm Warning 3, NWS Pueblo, CO

February 11, 2018Conejos County, Mineral County, Rio Grande County, Colorado

NWS Pueblo, CO issued this winter storm warning at Feb 11, 2018, 3:02 PM MST for Conejos County, Mineral County, Rio Grande County, Colorado. It took effect at Feb 12, 2018, 5:00 AM MST. It was in force for 27 hr. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 11, 2018, 3:02 PM MST (22:02 UTC)
In effect from
Feb 12, 2018, 5:00 AM MST
Expired
Feb 13, 2018, 8:00 AM MST
In force
27 hr
Issued by
NWS Pueblo, CO

Counties Conejos County, CO, Mineral County, CO, Rio Grande County, CO

The radar

The Pueblo radar (KPUX), 230 km from the middle of the area, began a volume at 22:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 12, 7:01 AM MSTSNOW 41 S Wolf Creek Pass, COREPORTED BY WOLF CREEK SKI PATROL OVER THE PAST 24 HOURS.
Feb 12, 9:13 AM MSTSNOW 61 S Wolf Creek Pass, COREPORTED BY WOLF CREEK SKI PATROL OVER THE PAST 24 HOURS.
Feb 12, 2:11 PM MSTSNOW 111 Se Wolf Creek Pass, COFELL IN PAST 24 HOURS.
Feb 13, 7:30 AM MSTSNOW 221 Se Wolf Creek Pass, COSTORM TOTAL. 16 INCHES FELL IN THE PAST 24 HOURS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 10.0 hours before the alert went out and 253 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Grand Junction, CO at 12:00Z on 2018-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 12:00Z on 2018-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1651 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

455 
WWUS45 KPUB 112202
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
302 PM MST Sun Feb 11 2018

COZ068-120700-
/O.UPG.KPUB.WW.Y.0008.180212T1200Z-180213T1200Z/
/O.NEW.KPUB.WS.W.0003.180212T1200Z-180213T1200Z/
Eastern San Juan Mountains Above 10000 Feet-
302 PM MST Sun Feb 11 2018

...WINTER STORM WARNING IN EFFECT FROM 5 AM MONDAY TO 5 AM MST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 8 to 12 
  inches, with localized amounts up to 16 inches, are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...From 5 AM Monday to 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the morning commute on Monday. Be prepared for
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

COZ058-060-066-120700-
/O.NEW.KPUB.WW.Y.0009.180212T1200Z-180213T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
302 PM MST Sun Feb 11 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM MONDAY TO 5 AM MST
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches, with localized amounts up to 10 inches, are expected.

* WHERE...Western Mosquito Range and Eastern Lake County Above 
  11000 Feet, Eastern Sawatch Mountains Above 11000 Feet and La 
  Garita Mountains Above 10000 Feet.

* WHEN...From 5 AM Monday to 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute on Monday. Be prepared 
  for reduced visibilities 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
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
8 follow-up statements
966 
WWUS45 KPUB 120422
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
922 PM MST Sun Feb 11 2018

COZ068-121230-
/O.CON.KPUB.WS.W.0003.180212T1200Z-180213T1200Z/
Eastern San Juan Mountains Above 10000 Feet-
922 PM MST Sun Feb 11 2018

...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM MONDAY TO
5 AM MST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 8 to 12 
  inches, with localized amounts up to 16 inches, are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...From 5 AM Monday to 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  particularly across Wolf Creek Pass.  Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions can 
be obtained by calling 5 1 1.

&&

$$

COZ058-060-066-121230-
/O.CON.KPUB.WW.Y.0009.180212T1200Z-180213T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
922 PM MST Sun Feb 11 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM MONDAY TO
5 AM MST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 
  inches, with localized amounts up to 10 inches, are expected.

* WHERE...Western Mosquito Range and Eastern Lake County Above 
  11000 Feet, Eastern Sawatch Mountains Above 11000 Feet and La 
  Garita Mountains Above 10000 Feet.

* WHEN...From 5 AM Monday to 5 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions,
  particularly over the mountain passes. Be prepared for reduced 
  visibilities 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
roads and limited visibilities, and use caution while driving.
The latest road conditions can be obtained by calling 5 1 1.

&&

$$
358 
WWUS45 KPUB 121049
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
349 AM MST Mon Feb 12 2018

COZ068-121900-
/O.EXT.KPUB.WS.W.0003.180212T1200Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
349 AM MST Mon Feb 12 2018

...WINTER STORM WARNING NOW IN EFFECT UNTIL 8 AM MST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 10 to 
  14 inches, with localized amounts up to 24 inches, are 
  expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  especially over Wolf Creek Pass and Cumbres Pass. Be prepared 
  for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

COZ058-060-066-121900-
/O.EXT.KPUB.WW.Y.0009.180212T1200Z-180213T1500Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
349 AM MST Mon Feb 12 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM MST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 4 to 7 
  inches, with localized amounts up to 12 inches, are expected.

* WHERE...Western Mosquito Range/East Lake County Above 11000 
  Feet, Eastern Sawatch Mountains Above 11000 Feet and La Garita 
  Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities 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
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
334 
WWUS45 KPUB 121822
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1122 AM MST Mon Feb 12 2018

COZ068-130300-
/O.CON.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
1122 AM MST Mon Feb 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Heavy snow. Additional accumulations of 6 to 10 inches,
  with localized amounts up to 18 inches, are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions,
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

COZ058-060-066-130300-
/O.CON.KPUB.WW.Y.0009.000000T0000Z-180213T1500Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
1122 AM MST Mon Feb 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Snow. Additional accumulations of 3 to 6 inches, with 
  localized amounts up to 12 inches, are expected.

* WHERE...Western Mosquito Range and Eastern Lake County above
  11000 feet, Eastern Sawatch Mountains above 11000 feet and La
  Garita Mountains above 10000 feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities 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
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
875 
WWUS45 KPUB 122229
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
329 PM MST Mon Feb 12 2018

COZ068-130700-
/O.CON.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
329 PM MST Mon Feb 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Heavy snow. Additional accumulations of 8 to 12 inches,
  with locally higher amounts, are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice will make travel very hazardous or impossible. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

COZ058-060-066-130700-
/O.CON.KPUB.WW.Y.0009.000000T0000Z-180213T1500Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
329 PM MST Mon Feb 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Periods of snow. Additional accumulations of 3 to 6 
  inches, with locally heavier amounts, are expected.

* WHERE...Western Mosquito Range and Eastern Lake County above
  11000 feet, Eastern Sawatch Mountains above 11000 feet and La
  Garita Mountains above 10000 feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the evening commute. Be prepared for reduced 
  visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$
092 
WWUS45 KPUB 130513
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1013 PM MST Mon Feb 12 2018

COZ068-131315-
/O.CON.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
1013 PM MST Mon Feb 12 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Heavy snow and blowing snow. Additional snow 
  accumulations of 6 to 9 inches are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Winds gusting as high as 40 mph will cause areas of blowing 
  and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions will make travel very hazardous or
impossible. If you must travel, keep an extra flashlight, food
and water in your vehicle in case of an emergency. The latest
road conditions for the state you are calling from can be
obtained by calling 5 1 1.

&&

$$

COZ058-060-066-131315-
/O.CON.KPUB.WW.Y.0009.000000T0000Z-180213T1500Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
1013 PM MST Mon Feb 12 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
TUESDAY...

* WHAT...Snow. Additional snow accumulations of up to 2 inches 
  are expected.

* WHERE...Western Mosquito Range and East Lake County Above 11000
  Feet, Eastern Sawatch Mountains Above 11000 Feet and La Garita 
  Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST Tuesday.

* ADDITIONAL DETAILS...Plan on slippery and snow packed road 
  conditions. In addition, some reductions to visibility are 
  likely. Winds gusting as high as 35 mph will cause patchy 
  blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
370 
WWUS45 KPUB 131141
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
441 AM MST Tue Feb 13 2018

COZ068-131500-
/O.CON.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
441 AM MST Tue Feb 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 3 
  inches are expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST this morning.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Be 
  prepared for significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

COZ058-060-066-131245-
/O.EXT.KPUB.WW.Y.0009.000000T0000Z-180213T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
441 AM MST Tue Feb 13 2018

...WINTER WEATHER ADVISORY will expire at 5 AM MST EARLY THIS 
MORNING...

* WHAT...Snow. Additional snow accumulations of less than 2 inches
  is expected

* WHERE...Western Mosquito Range/East Lake County Above 11000 
  Feet, Eastern Sawatch Mountains Above 11000 Feet and La Garita 
  Mountains Above 10000 Feet.

* WHEN...Until 5 AM MST early this morning.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities 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
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

Hodanish
366 
WWUS45 KPUB 131205
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
505 AM MST Tue Feb 13 2018

COZ058-060-066-131315-
/O.EXP.KPUB.WW.Y.0009.000000T0000Z-180213T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
La Garita Mountains Above 10000 Feet-
505 AM MST Tue Feb 13 2018

...WINTER WEATHER ADVISORY HAS EXPIRED...

The winter weather advisory for the central mountains and La
Garita mountains has expired. Snow showers will be possible the
rest of the day, with accumulations less than 1 inch expected. 

$$

COZ068-131500-
/O.CON.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
505 AM MST Tue Feb 13 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* WHAT...Snow. Additional snow accumulations of 2 to 3 inches are
  expected.

* WHERE...Eastern San Juan Mountains Above 10000 Feet.

* WHEN...Until 8 AM MST this morning.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the morning commute. Be prepared for 
  significant reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. The latest road conditions for
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

Hodanish
217 
WWUS45 KPUB 131433
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
733 AM MST Tue Feb 13 2018

COZ068-131545-
/O.EXP.KPUB.WS.W.0003.000000T0000Z-180213T1500Z/
Eastern San Juan Mountains Above 10000 Feet-
733 AM MST Tue Feb 13 2018

...WINTER STORM WARNING WILL EXPIRE AT 8 AM MST THIS MORNING...

The heavier snow across the San Juan mountains will come to an end
this morning. Snow showers will continue through the afternoon. An
additional inch or two of snow will be possible. 

$$

Hodanish

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pueblo, CO wrote its last area forecast discussion before this winter storm warning went out at Feb 11, 11:06 AM MST, 3 hours 56 minutes earlier.

Area forecast discussion, Feb 11, 11:06 AM MST, 3 hours 56 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1106 AM MST Sun Feb 11 2018

.UPDATE...
Issued at 521 AM MST Sun Feb 11 2018

After reviewing snow chances and amounts for the sw mts with this
next upcoming system, felt that an advisory was needed for zone
68. Remainder of the Continental Divide, and rest of the higher
terrain, will see some accumulating snow, but uncertain on
whether those amounts will reach any sort of highlight criteria.

Incorporated latest obs data, as well as adjusted total snow
amounts and pop grid for 12z Mon. Moore

&&

.SHORT TERM...(Today and tonight)
Issued at 426 AM MST Sun Feb 11 2018

Upper trough dropping south of the state this morning, and with
radar and obs suggesting snow has ended across srn CO, will drop all
pops and end the winter wx advisory with the latest forecast
issuance. Skies will become mostly clear over the region today in
the wake of the trough, though with plentiful snow cover in place
and only modest winds, nudged max temps down a few degf many
locations, as it will likely take until mid/late afternoon to push
above freezing over most valleys/plains/I-25 corridor. Next upper
trough then drops southward through the Great Basin late tonight,
allowing mid level flow to gradually turn southwestward across the
state by early Mon morning. Moisture and clouds will begin to
increase across the area after midnight, with light snow breaking
out along the Continental Divide toward sunrise as upward motion and
favorable orographic flow push eastward into the area. Mins will be
seasonably cold at most locations given residual snow cover, with
perhaps some minor warming after midnight as clouds begin to
thicken.

.LONG TERM...(Monday through Saturday)
Issued at 426 AM MST Sun Feb 11 2018

Monday and Tuesday...An upper trough of low pressure system will be
situated over the Great Basin early Monday morning, with brisk sw
flow over the Four Corners drawing moisture up into western CO. This
trough is forecast to strengthen, with an upper closed low
developing and shifting to the southwest across NV and Southern CA
through Tuesday night. all of the Continental Divide is expected to
receive accumulating snow over the course of 48 hours, though the
southwest mts will receive the heaviest amounts with a total
snowfall potential of 6 to 10 inches, and localized amounts up to 13
inches. The rest of the higher terrain may see amounts in the 3 to 7
inch range, while the plains will remain dry. Look for high temps in
the 40s for most locations on Monday, then warmer on Tuesday as
downslope flow increases with highs in the upper 40s to lower 50s
for the high valleys, and 50s to around 60F for the plains.

Wednesday...The upper low is expected to sit off the southern CA
coast Wed, with just some isolated to possibly low-end scattered
snow showers along the Continental Divide. The main concern for Wed
will be the increasing w-sw flow across the forecast area, with aftn
wind gusts of 30 to 35 mph. This will help bump temps up into the
50s for the high valleys, and upper 50s to near 70F for the plains.

Thursday through Saturday...Extended models indicate that the upper
low moving back onshore across the desert southwest late Wed night,
while another disturbance aloft in the northern stream drops down
across the Rockies. The two features merge, bringing pcpn chances
back to the state for Thursday through Friday morning, then cool but
dry northwest flow for Saturday. Expect max temps each day to range
from the upper 40s to upper 50s for most areas. Moore

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1048 AM MST Sun Feb 11 2018

Weak ridging over the flight area will result in generally VFR
conditions through 06z. After 06z, an approaching disturbance
crossing the Great Basin will begin to draw up moisture into
western Colorado. This will result in the development of snow
along the Continental Divide. The snow along the Divide will start
out spotty at 06z but then steadily increase and become
widespread by 15z.

For the terminals...KCOS and KPUB will see an increase in mid
and high level clouds after 06z but will likely remain VFR through
the forecast period. KALS will also see an increase in mid and
high clouds after about 06z. Forecast models show a very weak
disturbance moving across the terminal vicinity beginning around
09z. There is an outside chance the disturbance could result in
VCSH at the terminal for brief period early Monday morning, in the
the 12-15z timeframe.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 5 AM Monday to 5 AM MST Tuesday for
COZ068.

&&

UPDATE...MOORE
SHORT TERM...PETERSEN
LONG TERM...MOORE
AVIATION...LW
Hazardous weather outlook, Feb 11, 5:36 AM MST, 9 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
536 AM MST Sun Feb 11 2018

COZ058>089-093>099-121400-
Western Mosquito Range/East Lake County Above 11000 Feet-
Leadville Vicinity/Lake County Below 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Western Chaffee County Between 9000 and 11000 Feet-
Central Chaffee County Below 9000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
Saguache County West of Continental Divide Below 10000 Feet-
Saguache County East of Continental Divide Below 10000 Feet-
La Garita Mountains Above 10000 Feet-
Upper Rio Grande Valley/Eastern San Juan Mountains Below
10000 Feet-Eastern San Juan Mountains Above 10000 Feet-
Del Norte Vicinity/Northern San Luis Valley Below 8500 Feet-
Alamosa  Vicinity/Central San Luis Valley Below 8500 Feet-
Southern San Luis Valley-
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Western/Central Fremont County Below 8500 Feet-
Wet Mountain Valley Below 8500 Feet-
Wet Mountains between 6300 and 10000 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-Pikes Peak Above 11000 Feet-
Canon City Vicinity/Eastern Fremont County-
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Feet-
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Feet-Pueblo Vicinity/Pueblo County Below 6300 Feet-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Feet-
Trinidad Vicinity/Western Las Animas County Below 7500 Feet-
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-
536 AM MST Sun Feb 11 2018

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Light to moderate snow will develop along the Continental Divide
early Monday morning, and continue through Tuesday morning, with
total snowfall amounts of 3 to 6 inches expected. The heaviest
hit area will be the Eastern San Juan Mountains above 10000 feet,
where moderate to heavy snow is forecast to begin early Monday
morning and last through the night. 6 to 9 inches of new snow,
with localized amounts of up to 13 inches, are expected there.

The remainder of the mountains will see light accumulations as
well, with total new snowfall amounts ranging from 1 to 4 inches.

Another round of light accumulating snowfall will be possible over
the higher terrain Wednesday night through Friday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters will not be needed today or tonight.

10/27

In the hours before

Local storm report, Feb 11, 9:15 AM MST, 5 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
915 AM MST SUN FEB 11 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0914 AM     SNOW             2 NE LEADVILLE          39.27N 106.27W
02/11/2018  M3.0 INCH        LAKE               CO   TRAINED SPOTTER

&&
Local storm report, Feb 11, 10:33 AM MST, 4 hours 29 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE PUEBLO CO
1033 AM MST SUN FEB 11 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0914 AM     SNOW             2 NE LEADVILLE          39.27N 106.27W
02/11/2018  M3.0 INCH        LAKE               CO   TRAINED SPOTTER

0830 AM     SNOW             2 SSW WETMORE           38.20N 105.10W
02/11/2018  M7.0 INCH        CUSTER             CO   TRAINED SPOTTER

0824 AM     SNOW             2 ESE FOUNTAIN          38.67N 104.67W
02/11/2018  M5.0 INCH        EL PASO            CO   TRAINED SPOTTER

            STORM TOTAL.

0806 AM     SNOW             7 ESE TEXAS CREEK       38.37N 105.46W
02/11/2018  M5.8 INCH        FREMONT            CO   TRAINED SPOTTER

0749 AM     SNOW             1 WSW ROSITA            38.09N 105.35W
02/11/2018  M4.1 INCH        CUSTER             CO   CO-OP OBSERVER

0738 AM     SNOW             5 W WESTCLIFFE          38.13N 105.56W
02/11/2018  M5.0 INCH        CUSTER             CO   TRAINED SPOTTER

0716 AM     SNOW             MAYSVILLE               38.54N 106.22W
02/11/2018  M6.0 INCH        CHAFFEE            CO   TRAINED SPOTTER

            0.30 INCHES WATER EQUIVALENT.

0709 AM     SNOW             5 WSW WALSENBURG        37.59N 104.87W
02/11/2018  M5.0 INCH        HUERFANO           CO   TRAINED SPOTTER

0702 AM     SNOW             1 SE WOLF CREEK PASS    37.47N 106.79W
02/11/2018  M4.0 INCH        MINERAL            CO   PUBLIC

            STORM TOTAL REPORTED BY WOLF CREEK SKI
            PATROL.

0700 AM     SNOW             1 NNW MONARCH PASS      38.51N 106.33W
02/11/2018  M14.0 INCH       CHAFFEE            CO   PUBLIC

            STORM TOTAL REPORTED BY MONARCH SKI PATROL
            IN THE PAST 24 HOURS.

0434 AM     SNOW             1 SE PUEBLO WEST        38.30N 104.74W
02/11/2018  M5.3 INCH        PUEBLO             CO   NWS EMPLOYEE

            0.32 INCHES WATER EQUIVALENT.

1215 AM     SNOW             3 SSW PUEBLO            38.26N 104.65W
02/11/2018  M4.0 INCH        PUEBLO             CO   TRAINED SPOTTER

            STORM TOTAL.

1100 PM     SNOW             5 WNW PUEBLO WEST       38.33N 104.84W
02/10/2018  M5.0 INCH        PUEBLO             CO   NWS EMPLOYEE

1057 PM     SNOW             1 SSE BEULAH            38.07N 104.98W
02/10/2018  M8.0 INCH        PUEBLO             CO   TRAINED SPOTTER

1025 PM     SNOW             2 N PUEBLO              38.32N 104.62W
02/10/2018  M3.0 INCH        PUEBLO             CO   TRAINED SPOTTER

0948 PM     SNOW             CANON CITY              38.46N 105.23W
02/10/2018  M5.0 INCH        FREMONT            CO   PUBLIC

0943 PM     SNOW             6 SSW CALHAN            38.95N 104.34W
02/10/2018  M3.2 INCH        EL PASO            CO   TRAINED SPOTTER

0937 PM     SNOW             2 NW PUEBLO WEST        38.33N 104.78W
02/10/2018  M5.0 INCH        PUEBLO             CO   NWS EMPLOYEE

0936 PM     SNOW             5 WSW WALSENBURG        37.59N 104.87W
02/10/2018  M4.5 INCH        HUERFANO           CO   TRAINED SPOTTER

0932 PM     SNOW             5 SSE AIR FORCE ACADEMY 38.93N 104.83W
02/10/2018  M4.7 INCH        EL PASO            CO   TRAINED SPOTTER

0918 PM     SNOW             1 N PUEBLO WEST         38.33N 104.76W
02/10/2018  M5.0 INCH        PUEBLO             CO   NWS EMPLOYEE

0916 PM     SNOW             1 WSW RYE               37.91N 104.95W
02/10/2018  M6.7 INCH        PUEBLO             CO   NWS EMPLOYEE

            CORRECTS PREVIOUS SNOW REPORT FROM 1 WSW
            RYE. 0.34" LIQUID EQUIVALENT.

0905 PM     SNOW             2 NW COLORADO SPRINGS   38.85N 104.85W
02/10/2018  M5.5 INCH        EL PASO            CO   TRAINED SPOTTER

0832 PM     SNOW             4 NW PETERSON AFB       38.88N 104.74W
02/10/2018  M4.2 INCH        EL PASO            CO   TRAINED SPOTTER

0830 PM     SNOW             MAYSVILLE               38.54N 106.22W
02/10/2018  M6.5 INCH        CHAFFEE            CO   TRAINED SPOTTER

0745 PM     SNOW             5 WSW WALSENBURG        37.59N 104.87W
02/10/2018  M3.5 INCH        HUERFANO           CO   TRAINED SPOTTER

0634 PM     SNOW             CASCADE                 38.90N 104.97W
02/10/2018  M5.0 INCH        EL PASO            CO   TRAINED SPOTTER

0634 PM     SNOW             CANON CITY              38.46N 105.23W
02/10/2018  M4.5 INCH        FREMONT            CO   PUBLIC

0631 PM     SNOW             WOODLAND PARK           38.99N 105.05W
02/10/2018  M3.5 INCH        TELLER             CO   TRAINED SPOTTER

0608 PM     SNOW             2 ENE FOUNTAIN          38.69N 104.68W
02/10/2018  M5.0 INCH        EL PASO            CO   NWS EMPLOYEE

0606 PM     SNOW             1 WSW ROSITA            38.09N 105.35W
02/10/2018  M2.3 INCH        CUSTER             CO   CO-OP OBSERVER

0605 PM     SNOW             MAYSVILLE               38.54N 106.22W
02/10/2018  M4.5 INCH        CHAFFEE            CO   TRAINED SPOTTER

0557 PM     SNOW             2 E PUEBLO              38.30N 104.59W
02/10/2018  M4.0 INCH        PUEBLO             CO   TRAINED SPOTTER

0549 PM     SNOW             5 SSE AIR FORCE ACADEMY 38.93N 104.83W
02/10/2018  M4.3 INCH        EL PASO            CO   TRAINED SPOTTER

0545 PM     SNOW             1 SE PUEBLO WEST        38.30N 104.74W
02/10/2018  M4.5 INCH        PUEBLO             CO   NWS EMPLOYEE

0532 PM     SNOW             CANON CITY              38.46N 105.23W
02/10/2018  M3.5 INCH        FREMONT            CO   PUBLIC

0532 PM     SNOW             CASCADE                 38.90N 104.97W
02/10/2018  M4.0 INCH        EL PASO            CO   PUBLIC

0531 PM     SNOW             1 SSE PUEBLO WEST       38.30N 104.75W
02/10/2018  M4.0 INCH        PUEBLO             CO   NWS EMPLOYEE

0529 PM     SNOW             1 SSE RYE               37.91N 104.92W
02/10/2018  M3.5 INCH        PUEBLO             CO   COCORAHS

0505 PM     SNOW             2 SE PENROSE            38.41N 104.99W
02/10/2018  M3.5 INCH        FREMONT            CO   TRAINED SPOTTER

0436 PM     SNOW             2 NNE COLORADO SPRINGS  38.86N 104.81W
02/10/2018  M3.0 INCH        EL PASO            CO   PUBLIC

0432 PM     SNOW             3 ENE MANITOU SPRINGS   38.87N 104.86W
02/10/2018  M4.5 INCH        EL PASO            CO   TRAINED SPOTTER

0401 PM     SNOW             2 NW COLORADO SPRINGS   38.85N 104.85W
02/10/2018  M5.0 INCH        EL PASO            CO   TRAINED SPOTTER

0343 PM     SNOW             4 NNE COLORADO SPRINGS  38.89N 104.79W
02/10/2018  M3.0 INCH        EL PASO            CO   TRAINED SPOTTER

0331 PM     SNOW             2 SSW COLORADO SPRINGS  38.80N 104.84W
02/10/2018  M4.0 INCH        EL PASO            CO   TRAINED SPOTTER

0320 PM     SNOW             2 ESE FOUNTAIN          38.67N 104.67W
02/10/2018  M3.5 INCH        EL PASO            CO   TRAINED SPOTTER

0317 PM     SNOW             4 NW PETERSON AFB       38.88N 104.74W
02/10/2018  M3.5 INCH        EL PASO            CO   TRAINED SPOTTER

0310 PM     SNOW             1 SE PUEBLO WEST        38.30N 104.74W
02/10/2018  M2.0 INCH        PUEBLO             CO   NWS EMPLOYEE

0138 PM     SNOW             1 N PUEBLO WEST         38.33N 104.76W
02/10/2018  M1.0 INCH        PUEBLO             CO   NWS EMPLOYEE

0130 PM     SNOW             2 NW COLORADO SPRINGS   38.85N 104.85W
02/10/2018  M2.8 INCH        EL PASO            CO   TRAINED SPOTTER

            0.03 WATER EQUIVALENT.

0127 PM     SNOW             3 ENE MANITOU SPRINGS   38.87N 104.86W
02/10/2018  M2.2 INCH        EL PASO            CO   TRAINED SPOTTER

1250 PM     SNOW             2 ENE FOUNTAIN          38.69N 104.68W
02/10/2018  M1.0 INCH        EL PASO            CO   NWS EMPLOYEE

1200 PM     SNOW             1 NNW MONARCH PASS      38.51N 106.33W
02/10/2018  M5.0 INCH        CHAFFEE            CO   PUBLIC

            REPORTED BY MONARCH SKI PATROL OVER THE PAST
            24 HOURS.

1150 AM     SNOW             MAYSVILLE               38.54N 106.22W
02/10/2018  M1.2 INCH        CHAFFEE            CO   TRAINED SPOTTER

1045 AM     SNOW             4 NW PETERSON AFB       38.88N 104.74W
02/10/2018  M1.5 INCH        EL PASO            CO   TRAINED SPOTTER

&&
Local storm report, Feb 11, 12:11 PM MST, 2 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
1211 PM MST SUN FEB 11 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1210 PM     SNOW             7 NNE COLORADO SPRINGS  38.93N 104.77W
02/11/2018  M2.5 INCH        EL PASO            CO   TRAINED SPOTTER

&&

LW

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 5:27 AM MSTWinter Weather AdvisoryPUBConejos, Mineral, Rio Grande10 hr
Feb 11, 3:02 PM MSTWinter Weather AdvisoryPUBChaffee, Lake, Mineral, Rio Grande, Saguache38 hr

Nearby

Winter Storm Warnings in Colorado, 2018Every winter storm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.