Alert archive / Colorado / Blizzard Watches in 2017

Blizzard Watch 1, NWS Pueblo, CO

March 23, 2017El Paso County, Colorado

NWS Pueblo, CO issued this blizzard watch at Mar 23, 2017, 4:07 AM MDT for El Paso County, Colorado. It took effect at Mar 24, 2017, 12:00 AM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 23, 2017, 4:07 AM MDT (10:07 UTC)
In effect from
Mar 24, 2017, 12:00 AM MDT
Expired
Mar 23, 2017, 3:44 PM MDT
In force
Issued by
NWS Pueblo, CO

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 51 km from the middle of the area, began a volume at 10:04 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.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 10.1 hours before the alert went out and 160 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, Denver, CO at 00:00Z on 2017-03-23Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2017-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939587897Sfc1 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
3089 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

361 
WWUS45 KPUB 231007
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
407 AM MDT Thu Mar 23 2017

COZ084-231815-
/O.CAN.KPUB.WS.A.0010.170324T0200Z-170324T2300Z/
/O.NEW.KPUB.BZ.A.0001.170324T0600Z-170324T1800Z/
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Ft-
INCLUDING Black Forest
407 AM MDT Thu Mar 23 2017

...BLIZZARD WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY 
MORNING...

The National Weather Service in Pueblo has issued a Blizzard
Watch, which is in effect from late tonight through Friday
morning. This replaces the Winter Storm Watch. 

* LOCATION...Northern El Paso County including Black Forest and
  Monument. 

* TIMING...A strong storm system will send a cold front south
  across the Palmer Divide this evening with rain changing to snow
  by midnight. Periods of moderate to heavy wet snow and blowing
  snow will be possible late tonight into midday Friday. 

* SNOW ACCUMULATION...6 to 10 inches. 

* WIND...North at 35 to 45 mph, with gusts in excess of 65 mph.

* IMPACT...Hazardous travel conditions are expected due to very
  strong winds, areas of blowing snow, poor visibilities and icy,
  snow covered roads. In addition, the strong winds and heavy wet
  nature of the snowfall may produce power outages and cause tree
  damage where spring leafing has occurred. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Watch means there is a potential for falling and/or
blowing snow with strong winds and extremely poor visibilities.
This can lead to whiteout conditions and make travel very
dangerous.

&&

$$

COZ058-060-066-068-231815-
/O.NEW.KPUB.WW.Y.0012.170323T2100Z-170324T1500Z/
Western Mosquito Range/East Lake County Above 11000 Ft-
Eastern Sawatch Mountains above 11000 Ft-
La Garita Mountains Above 10000 Ft-
Eastern San Juan Mountains Above 10000 Ft-
INCLUDING Climax, Bonanza, North Pass, Cumbres Pass, 
and Wolf Creek Pass
407 AM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 AM MDT FRIDAY...

The National Weather Service in Pueblo has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 3 PM this afternoon to 9 AM MDT Friday. 

* LOCATION...The eastern San Juan mountains above 10000 feet, the
  La Garita mountains above 10000 feet, the Sawatch range above
  11000 feet and the Mosquito Range above 11000 feet. 

* CAUSE AND TIMING...A strong storm system will move across the
  region from late this afternoon through Friday. It will be
  capable of producing periods of heavy snow across the higher
  elevations of the central and southwest mountains through mid-
  morning Friday, with the heaviest snow falling this evening. 

* SNOW ACCUMULATION...4 to 8 inches

* WIND...Southwest 15 to 30 mph today, switching to northwest at
  20 to 40 mph overnight. 

* IMPACT...Hazardous conditions are expected due to strong winds,
  blowing snow, poor visibilities and icy, snow covered roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
visibilities will be limited due to a combination of falling and 
blowing snow. Use caution when traveling, especially in open 
areas.

&&

$$

COZ073-075-231815-
/O.EXT.KPUB.WS.A.0010.170324T0200Z-170324T1800Z/
Northern Sangre de Cristo Mountains above 11000 Ft-
Southern Sangre De Cristo Mountains Above 11000 Ft-
INCLUDING Blanca Peak and Spanish Peaks
407 AM MDT Thu Mar 23 2017

...WINTER STORM WATCH NOW IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

* LOCATION...The Sangre de Cristo Mountains above 11000 feet.

* CAUSE AND TIMING...A strong storm system will move across the
  region tonight through Friday. It will be capable of producing
  periods of heavy snow across the higher elevations of the 
  Sangre de Cristo Mountains through midday Friday. 

* SNOW ACCUMULATION...8 to 14 inches. 

* WIND...North at 20 to 30 mph, with gusts to 50 mph.

* IMPACT...Hazardous conditions are expected due to strong winds,
  blowing snow, poor visibilities and icy, snow covered roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ080>082-231815-
/O.EXT.KPUB.WS.A.0010.170324T0600Z-170324T1800Z/
Wet Mountains above 10000 Ft-
Teller County/Rampart Range above 7500fT/Pike's Peak Between
7500 And 11000 Ft-Pikes Peak above 11000 Ft-
INCLUDING Woodland Park and Pikes Peak
407 AM MDT Thu Mar 23 2017

...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* LOCATION...The Wet Mountains above 10000 feet and the Pikes Peak
  region including Woodland Park. 

* CAUSE AND TIMING...A strong storm system will move across the
  region tonight through Friday. It will be capable of producing
  periods of heavy snow across the higher elevations of the Wet
  Mountains and much of Teller County through midday Friday. 

* SNOW ACCUMULATION...8-12 inches with locally higher amounts of
  up to 16 inches possible near the summit of Pikes Peak. 

* WIND...North at 20 to 30 mph, with gusts of 45 mph.

* IMPACT...Hazardous conditions are expected due to strong winds,
  blowing snow, poor visibilities and icy, snow covered roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
790 
WWUS45 KPUB 231806
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1206 PM MDT Thu Mar 23 2017

COZ058-060-066-068-240215-
/O.CON.KPUB.WW.Y.0012.170323T2100Z-170324T1500Z/
Western Mosquito Range/East Lake County Above 11000 Ft-
Eastern Sawatch Mountains above 11000 Ft-
La Garita Mountains Above 10000 Ft-
Eastern San Juan Mountains Above 10000 Ft-
INCLUDING Climax, Bonanza, North Pass, Cumbres Pass, 
and Wolf Creek Pass
1206 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT
FRIDAY...

* LOCATION...The eastern San Juan mountains above 10000 feet, 
  the La Garita mountains above 10000 feet, the Sawatch range 
  above 11000 feet and the Mosquito Range above 11000 feet. 

* CAUSE AND TIMING...A strong storm system will move across the 
  region from late this afternoon through Friday. It will be 
  capable of producing periods of heavy snow across the higher 
  elevations of the central and southwest mountains through mid- 
  morning Friday, with the heaviest snow falling this evening. 

* SNOW ACCUMULATION...4 to 8 inches

* WIND...Southwest 15 to 30 mph today, switching to northwest at 
  20 to 40 mph overnight. 

* IMPACT...Hazardous conditions are expected due to strong 
  winds, blowing snow, poor visibilities and icy, snow covered 
  roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling, especially in open
areas.

&&

$$

COZ084-240215-
/O.CON.KPUB.BZ.A.0001.170324T0600Z-170324T1800Z/
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Ft-
INCLUDING Black Forest
1206 PM MDT Thu Mar 23 2017

...BLIZZARD WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH FRIDAY MORNING...

* LOCATION...Northern El Paso County including Black Forest and 
  Monument. 

* TIMING...A strong storm system will send a cold front south 
  across the Palmer Divide this evening with rain changing to 
  snow by midnight. Periods of moderate to heavy wet snow and 
  blowing snow will be possible late tonight into midday Friday. 

* SNOW ACCUMULATION...6 to 10 inches.

* WIND...North at 35 to 45 mph, with gusts in excess of 65 mph.

* IMPACT...Hazardous travel conditions are expected due to very 
  strong winds, areas of blowing snow, poor visibilities and 
  icy, snow covered roads. In addition, the strong winds and 
  heavy wet nature of the snowfall may produce power outages and 
  cause tree damage where spring leafing has occurred. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Watch means there is a potential for falling and/or
blowing snow with strong winds and extremely poor visibilities.
This can lead to whiteout conditions and make travel very
dangerous.

&&

$$

COZ073-075-240215-
/O.CON.KPUB.WS.A.0010.170324T0200Z-170324T1800Z/
Northern Sangre de Cristo Mountains above 11000 Ft-
Southern Sangre De Cristo Mountains Above 11000 Ft-
INCLUDING Blanca Peak and Spanish Peaks
1206 PM MDT Thu Mar 23 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM 8 PM MDT THIS
EVENING THROUGH FRIDAY MORNING...

* LOCATION...The Sangre de Cristo Mountains above 11000 feet.

* CAUSE AND TIMING...A strong storm system will move across the 
  region tonight through Friday. It will be capable of producing 
  periods of heavy snow across the higher elevations of the 
  Sangre de Cristo Mountains through midday Friday. 

* SNOW ACCUMULATION...8 to 14 inches.

* WIND...North at 20 to 30 mph, with gusts to 50 mph.

* IMPACT...Hazardous conditions are expected due to strong 
  winds, blowing snow, poor visibilities and icy, snow covered 
  roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

COZ080>082-240215-
/O.CON.KPUB.WS.A.0010.170324T0600Z-170324T1800Z/
Wet Mountains above 10000 Ft-
Teller County/Rampart Range above 7500fT/Pike's Peak Between
7500 And 11000 Ft-Pikes Peak above 11000 Ft-
INCLUDING Woodland Park and Pikes Peak
1206 PM MDT Thu Mar 23 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MDT TONIGHT
THROUGH FRIDAY MORNING...

* LOCATION...The Wet Mountains above 10000 feet and the Pikes 
  Peak region including Woodland Park. 

* CAUSE AND TIMING...A strong storm system will move across the 
  region tonight through Friday. It will be capable of producing 
  periods of heavy snow across the higher elevations of the Wet 
  Mountains and much of Teller County through midday Friday. 

* SNOW ACCUMULATION...8-12 inches with locally higher amounts of 
  up to 16 inches possible near the summit of Pikes Peak. 

* WIND...North at 20 to 30 mph, with gusts of 45 mph.

* IMPACT...Hazardous conditions are expected due to strong 
  winds, blowing snow, poor visibilities and icy, snow covered 
  roads. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
129 
WWUS45 KPUB 232144
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
344 PM MDT Thu Mar 23 2017

COZ084-240600-
/O.UPG.KPUB.BZ.A.0001.170324T0600Z-170324T1800Z/
/O.NEW.KPUB.BZ.W.0001.170324T0600Z-170324T1800Z/
Northern El Paso County/Monument Ridge/Rampart Range Below
7500 Ft-
INCLUDING Black Forest
344 PM MDT Thu Mar 23 2017

...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT
FRIDAY...

The National Weather Service in Pueblo has issued a Blizzard
Warning, which is in effect from midnight tonight to noon MDT
Friday. This upgrades and replaces the Blizzard Watch that was
in effect.

* LOCATION...Northern El Paso County including Monument and Black
  Forest. 

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning.

* SNOW ACCUMULATION...8 to 10 inches with deeper drifts.

* WIND...North 35 to 45 gusting to 65 mph resulting in heavy
  blowing and drifting snow and near zero visibilities.

* IMPACT...Conditions will be hazardous due to heavy, blowing and
  drifting snow and whiteout countdowns. Snow covered roads and
  near zero visibilities will make travel difficult to impossible.
  Strong winds and heavy, blowing snow may result in power outages
  and tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected. 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.

&&

$$

COZ081-082-240600-
/O.UPG.KPUB.WS.A.0010.170324T0600Z-170324T1800Z/
/O.NEW.KPUB.WS.W.0010.170324T0600Z-170324T1800Z/
Teller County/Rampart Range above 7500fT/Pike's Peak Between
7500 And 11000 Ft-Pikes Peak above 11000 Ft-
INCLUDING Woodland Park and Pikes Peak
344 PM MDT Thu Mar 23 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON
MDT FRIDAY...

The National Weather Service in Pueblo has issued a Winter Storm
Warning for heavy snow and blowing snow, which is in effect from 
midnight tonight to noon MDT Friday. This upgrades and replaces
the Winter Storm Watch that was in effect.

* LOCATION...Teller County, the Rampart Range and Pikes Peak
  including Woodland Park, Divide and Cripple Creek.

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning.

* SNOW ACCUMULATION...8 to 10 inches with locally higher amounts.

* WIND...North 20 to 30 gusting to 45 mph.

* IMPACT...Conditions will be hazardous due to heavy, blowing snow
  and poor visibilities. Snow covered roads and poor visibilities
  will make travel difficult. Heavy snow may result in power
  outages and tree damage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected. 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.

&&

$$

COZ073-075-240600-
/O.UPG.KPUB.WS.A.0010.170324T0200Z-170324T1800Z/
/O.EXB.KPUB.WW.Y.0012.170324T0200Z-170324T1800Z/
Northern Sangre de Cristo Mountains above 11000 Ft-
Southern Sangre De Cristo Mountains Above 11000 Ft-
INCLUDING Blanca Peak and Spanish Peaks
344 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
NOON MDT FRIDAY...

The National Weather Service in Pueblo has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 8 PM this evening to noon MDT Friday. This upgrades and
replaces the Winter Storm Watch that was in effect.

* LOCATION...The Sangre de Cristo Mountains above 11000 feet.

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning.

* SNOW ACCUMULATION...4 to 8 inches with locally higher amounts.

* WIND...North 20 to 30 gusting to 50 mph.

* IMPACT...Conditions will be hazardous due to heavy, blowing snow
  and poor visibilities. Snow covered roads and poor visibilities
  will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
periods of snow will cause primarily travel difficulties. Be 
prepared for snow covered roads and limited visibilities, and use 
caution while driving.

&&

$$

COZ080-240600-
/O.UPG.KPUB.WS.A.0010.170324T0600Z-170324T1800Z/
/O.EXB.KPUB.WW.Y.0012.170324T0600Z-170324T1800Z/
Wet Mountains above 10000 Ft-
344 PM MDT Thu Mar 23 2017

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

The National Weather Service in Pueblo has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from midnight tonight to noon MDT Friday. The Winter Storm Watch 
is no longer in effect.

* LOCATION...The Wet Mountains above 10000 feet. 

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning. 

* SNOW ACCUMULATION...4 to 8 inches with locally higher amounts.

* WIND...North 20 to 30 gusting to 45 mph.

* IMPACT...Conditions will be hazardous due to heavy, blowing snow
  and poor visibilities. Snow covered roads and poor visibilities
  will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
periods of snow will cause primarily travel difficulties. Be 
prepared for snow covered roads and limited visibilities, and use 
caution while driving.

&&

$$

COZ085-240600-
/O.EXB.KPUB.WW.Y.0012.170324T0600Z-170324T1800Z/
Colorado Springs Vicinity/Southern El Paso County/Rampart Range
Below 7400 Ft-
INCLUDING Colorado Springs and Peterson AFB
344 PM MDT Thu Mar 23 2017

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

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

* LOCATION...Southern El Paso County including Colorado Springs.

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning. 

* SNOW ACCUMULATION...2 to 6 inches with the highest amounts north
  and west of the Springs.

* WIND...North 20 to 40 gusting to 60 mph overnight resulting in
  areas of blowing and drifting snow and reduced visibilities.

* IMPACT...Conditions will be hazardous due to periods of heavy,
  blowing snow and poor visibilities. Slushy or snow covered roads
  and poor visibilities will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling, especially in open
areas.

&&

$$

COZ072-074-240600-
/O.EXB.KPUB.WW.Y.0012.170324T0200Z-170324T1800Z/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Ft-
Southern Sangre De Cristo Mountains Between 7500 and 11000 Ft-
INCLUDING La Veta Pass, Poncha Pass, Cuchara, Stonewall, 
and Weston
344 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
NOON MDT FRIDAY...

The National Weather Service in Pueblo has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 8 PM this evening to noon MDT Friday. 

* LOCATION...the lower slopes of the Sangre De Cristo Mountains
  including La Veta and Cuchara Passes.

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning. 

* SNOW ACCUMULATION...4 to 8 inches

* WIND...Northerly 20 to 40 gusting to 50 mph. 

* IMPACT...Conditions will be hazardous due to periods of heavy,
  blowing snow and poor visibilities. Slushy or snow covered roads
  and poor visibilities will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling, especially in open
areas.

&&

$$

COZ079-087-088-094-240600-
/O.EXB.KPUB.WW.Y.0012.170324T0600Z-170324T1800Z/
Wet Mountains between 6300 and 10000Ft-
Walsenburg Vicinity/Upper Huerfano River Basin Below 7500 Ft-
Trinidad Vicinity/Western Las Animas County Below 7500 Ft-
Eastern Las Animas County-
INCLUDING Rye, Walsenburg, Trinidad, Branson, and Kim
344 PM MDT Thu Mar 23 2017

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

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

* LOCATION...The lower slopes of the Wet Mountains, Huerfano and
  Las Animas Counties including the southern I-25 corridor.

* CAUSE AND TIMING...A developing storm system will rapidly
  intensify on the eastern Colorado plains late tonight into
  Friday morning.

* SNOW ACCUMULATION...4 to 8 inches for the mountains and 2 to 4
  inches for the lower elevations along the I-25 corridor.

* WIND...North 20 to 40 gusting to 60 mph. 

* IMPACT...Conditions will be hazardous due to periods of heavy,
  blowing snow and poor visibilities. Slushy or snow covered roads
  and poor visibilities will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling, especially in open
areas.

&&

$$

COZ058-060-066-068-240600-
/O.CON.KPUB.WW.Y.0012.000000T0000Z-170324T1500Z/
Western Mosquito Range/East Lake County Above 11000 Ft-
Eastern Sawatch Mountains above 11000 Ft-
La Garita Mountains Above 10000 Ft-
Eastern San Juan Mountains Above 10000 Ft-
INCLUDING Climax, Bonanza, North Pass, Cumbres Pass, 
and Wolf Creek Pass
344 PM MDT Thu Mar 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT
FRIDAY...

* LOCATION...The eastern San Juan mountains above 10000 feet, 
  the La Garita mountains above 10000 feet, the Sawatch range 
  above 11000 feet and the Mosquito Range above 11000 feet. 

* CAUSE AND TIMING...A strong storm system will move across the
  region tonight into Friday.

* SNOW ACCUMULATION...4 to 8 inches.

* WIND...Southwest 15 to 30 mph today. Northwest at 20 to 40
  gusting to 50 mph overnight. 

* IMPACT...Conditions will be hazardous due to periods of heavy,
  blowing snow and poor visibilities. Slushy or snow covered roads
  and poor visibilities will make travel difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling, especially in open
areas.

&&

$$

What forecasters said that day

The local office's own words before this blizzard watch 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 blizzard watch went out at Mar 22, 11:31 PM MDT, 4 hours 36 minutes earlier.

Area forecast discussion, Mar 22, 11:31 PM MDT, 4 hours 36 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1131 PM MDT Wed Mar 22 2017

.UPDATE...
Issued at 604 PM MDT Wed Mar 22 2017

Updated to cancel Red Flag Warning that was in effect for today
for Huerfano and Las Animas counties. Relative humidities in
Huerfano and Las Animas counties has risen above 15 percent and
therefore the warning is no longer needed. However, a Red Flag
Warning remains in effect for Thursday for the I-25 corridor and
all of the southeast Colorado plains.

&&

.SHORT TERM...(This evening through Thursday)
Issued at 304 PM MDT Wed Mar 22 2017

...Snow Returns to the Divide...High Fire Danger Returns to the
Plains...Thunderstorms Possible...

Weather pattern will be in transition over the next 24 hours.
Developing upper low off the coast of California is making slow but
steady progress eastward this afternoon.  Models accelerate the
storm and move it eastward over the Great Basin by 6 am Thursday and
into western Colorado by 6 pm.  As it does so, snow, fire danger and
the potential for a few thunderstorms will ramp up across southern
Colorado.

For tonight, Red Flag conditions are occurring around the Trinidad
area this afternoon.  Expect those to continue for a few more hours.
So, the Red Flag Warning down there will continue for this evening.

As for precipitation, not much going on tonight.  There will be a
few spotty showers possible along the Continental Divide but little
if any snow accumulation is expected with those.

Thursday is when things start ramping up.  Snow should increase
along the Continental Divide during the morning hours, with showers
becoming widespread.  Widespread showers will then continue through
the afternoon and start to spread to the higher elevations of the
eastern mountains.  The high valleys in between could see a few
showers but coverage should be pretty spotty and amounts pretty
light.  The plains should generally remain dry Thursday.

There will be a slight chance of thunderstorms across the area
Thursday afternoon.  The best chance will be over the mountains,
closer to the approaching low.  However, the far eastern plains,
along the Kansas Border, near the dryline will also see a slight
chance of storms late in the day.  The Storm Prediction Center has
this area in a marginal to slight risk of severe weather if
storms can develop.

Fire Danger will be high across all of the plains Thursday
afternoon.  Winds, humidity and fuels will meet criteria on a
widespread basis starting late tomorrow morning and continuing into
the evening.  Gusts to 40 mph, humidities down to at least 10
percent and dry fuels will result in the potential for extreme fire
behavior.  Burning or any other activity that could accidentally
spark a wildfire should be postponed.

.LONG TERM...(Thursday night through Wednesday)
Issued at 304 PM MDT Wed Mar 22 2017

...high winds, snow and rain expected through Friday...

A very potent storm system is forecast to move across Colorado
Thursday night and Friday. The main forecast concerns will be the
very strong winds across the Plains, snow over the mountains and
into the Palmer Divide, and chance for severe weather out near the
Kansas border. Active weather will continue into the middle of
next week, however, there are slight differences in the model
solutions and ensemble members.

Thursday night and Friday...a strong upper level storm system is
forecast to move across northern New Mexico and into Western
Kansas. Expect snow to move into the Continental Divide Thursday
evening and spread into the Eastern Mountains through the
overnight hours.

A surface dryline is forecast to develop out near the Kansas
border late Thursday afternoon. The NAM and NAM 3km develop a
line of thunderstorms along the dryline and spread it east into
western Kansas during the evening hours. The main question will be
how far west convection develops. Modest dewpoints in the 40s
ahead of the dryline will lead to CAPE values around 1000 j/kg.
Shear looks good which should allow storms to rotate in the mid
levels with the primary threat being large hail and strong winds.
Again, severe weather will depend on where the dryline sets up.

The surface cold front is forecast to quickly drop south over the
Palmer Divide and down the I-25 corridor late Thursday night.
Northerly winds 35 to 45 with gusts in excess of 65 mph are likely
late Thursday night into Friday morning, before spreading east
across the Plains Friday afternoon. Hazardous travel conditions
are expected on east to west highways. In addition, downed power
lines may lead to power outages. Tree damage is also possible.
Expect winds to weaken from west to east Friday afternoon and
clear into Kansas by the evening hours.

The other main concern will be the potential for heavy snowfall
over the Palmer Divide. Model guidance suggests 6 to 10 inches
with locally higher amounts possible. This snowfall combined with
the strong winds will produce very hazardous conditions over
northern El Paso County. Near zero visibilities on area roadways
and heavy wet snow may cause tree damage on trees where leaves are
already occurring. The morning commute on Friday will be heavily
impacted.

Elsewhere across the Plains, snow levels look to remain above 6000
feet through the event. Lower elevations will likely see mostly
rain, with perhaps a few snow flakes mixed in as the upper system
moves off to the east.

Saturday...a quick moving ridge of high pressure will move across
Colorado on Saturday with quiet conditions throughout the days.
Temperatures will be 60s for highs.

Sunday into Wednesday...another upper storm system is forecast to
move across the state Sunday into Monday with another round of
rain and snowfall for the Plains. Another storm is forecast to
move across the Desert Southwest by mid week which may lead to
another period of rain and snow.  Mozley

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1125 PM MDT Wed Mar 22 2017

VFR conditions can be expected at the terminal forecast sites
tonight through at least late afternoon on Thu. Thu morning, south
to southwest winds will increase across all of southern CO, with
gusts in the afternoon hours of 30 to 40 kts. KALS could see some
showers move into the VCNTY mainly after 21Z, with ceilings
lowering, but at this time it looks like they will remain VFR thru
the evening. In the evening a cold front will move south thru ern
CO and winds will become northerly at KPUB and KCOS and will
become quite strong by around 06Z with gusts Thu night and into
Fri morning of 45 to 55 kts, and maybe evening higher at times.
Showers are also expected to move into KCOS and KPUB, mainly after
03Z Fri.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from 11 AM to 8 PM MDT Thursday for COZ226>237.

High Wind Watch from late Thursday night through Friday
afternoon for COZ084>089-093>099.

Winter Storm Watch from Thursday afternoon through Friday
afternoon for COZ073-075-080-082.

Winter Storm Watch from Thursday evening through Friday
afternoon for COZ081-084.

&&

UPDATE...28
SHORT TERM...LW
LONG TERM...MOZLEY
AVIATION...28
Hazardous weather outlook, Mar 22, 6:18 PM MDT, 9 hours 49 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
618 PM MDT Wed Mar 22 2017

COZ058>089-093>099-240030-
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-
618 PM MDT Wed Mar 22 2017

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

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

On Thursday, critical fire weather conditions will cover the
plains and Interstate 25 corridor due to very low relative
humidity values and gusty winds. Southwest winds gusting at 30 to
40 mph are expected to lead to extremely critical fire weather
conditions.

A dryline is forecast to develop near the Kansas border Thursday
evening. One or two strong to severe thunderstorms are possible
late Thursday afternoon, into the evening hours. Large hail and
strong winds will be the primary threats.

Snow will move into the Continental Divide Thursday with several
inches of snow possible through Friday morning. Gusty winds will
produce areas of blowing snow.

A strong cold front will drop south through the plains late
Thursday night into Friday morning. Strong northerly winds at 35
to 45 mph, with gusts in excess of 65 mph are likely. These winds
will produce hazardous travel conditions on east to west
highways, especially for high profile vehicles. In addition,
winds may take down power lines and trees, knock out power and
cause property damage. Winds are forecast to subside by Friday
afternoon from west to east.

Snow will move across the Palmer Divide and Teller County late
Thursday night into Friday morning. Snow and blowing snow will
cause very dangerous travel conditions Friday morning. Snow
accumulations of 6 to 10 inches are possible with locally higher
amounts expected over the Rampart Range. The very strong winds
will also produce poor visibilities, icy and snow covered roads.
In addition, the strong winds and heavy wet nature of the snowfall
may produce power outages and cause tree damage where spring
leafing has occurred.

Expect snow to come to an end from west to east Friday afternoon
with snow remaining above 6000 feet.

Several storm systems are forecast to move across the region over
the next week. Another round of rain and snow is forecast for
Sunday into Monday, and again Tuesday into Wednesday. There is
still uncertainty with storm tracks and intensity at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters will not be needed tonight.

28/28

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 4:07 AM MDTWinter Weather AdvisoryPUBAlamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 8 more32 hr
Mar 23, 3:44 PM MDTBlizzard WarningPUBEl Paso20 hr
Mar 23, 3:44 PM MDTWinter Storm WarningPUBEl Paso, Fremont, Teller18 hr
Mar 23, 3:47 PM MDTHigh Wind WarningPUBBaca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more25 hr

Nearby

Blizzard Watches in Colorado, 2017Every blizzard watch in 2017

Sources

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