Alert archive / Colorado / Winter Storm Warnings in 2018

Winter Storm Warning 8, NWS Pueblo, CO

April 19, 201810 counties in Colorado

NWS Pueblo, CO issued this winter storm warning at Apr 19, 2018, 3:09 PM MDT for 10 counties in Colorado. It took effect at Apr 20, 2018, 12:00 AM MDT. It was in force for 19 hr. 12 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
Apr 19, 2018, 3:09 PM MDT (21:09 UTC)
In effect from
Apr 20, 2018, 12:00 AM MDT
Expired
Apr 20, 2018, 7:13 PM MDT
In force
19 hr
Issued by
NWS Pueblo, CO

Counties Alamosa County, CO, Chaffee County, CO, Costilla County, CO, Custer County, CO, El Paso County, CO, Fremont County, CO, Huerfano County, CO, Lake County, CO, Saguache County, CO, Teller County, CO

The radar

The Pueblo radar (KPUX), 121 km from the middle of the area, began a volume at 21:08 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
Apr 20, 10:54 AM MDTSNOW 11 Wsw Rosita, COTHE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Apr 20, 10:54 AM MDTSNOW 11 Wsw Rosita, CO
Apr 20, 10:57 AM MDTSNOW 35 W Westcliffe, COTHE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Apr 20, 10:57 AM MDTSNOW 35 W Westcliffe, CO
Apr 20, 11:24 AM MDTSNOW 27 Ese Texas Creek, CO
Apr 20, 3:28 PM MDTSNOW 3Woodland Park, COON GRASSY AREAS.
Apr 20, 3:28 PM MDTSNOW 3Woodland Park, COON GRASSY AREAS. THE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Apr 20, 3:49 PM MDTSNOW 4.7Maysville, CO
Apr 20, 4:30 PM MDTSNOW 4.6Woodland Park, CO
Apr 20, 4:54 PM MDTSNOW 12 Nne Monument, COTHE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Apr 20, 4:54 PM MDTSNOW 12 Nne Monument, CO
Apr 20, 5:10 PM MDTSNOW 1.44 N Florissant, CO

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

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.2 hours before the alert went out and 267 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 12:00Z on 2018-04-19Temperature 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, Denver, CO at 12:00Z on 2018-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 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
2617 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
341 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

590 
WWUS45 KPUB 192109
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
309 PM MDT Thu Apr 19 2018

COZ061-063-192215-
/O.CAN.KPUB.WS.A.0006.180420T0600Z-180421T1200Z/
Western Chaffee County Between 9000 and 11000 Feet-
Western Mosquito Range/East Chaffee County Above 9000 Feet-
309 PM MDT Thu Apr 19 2018

...WINTER STORM WATCH IS CANCELLED...

The winter storm watch has been replaced by a winter storm warning
for the Central Mountains.

$$

COZ058-060-200515-
/O.UPG.KPUB.WS.A.0006.180420T0600Z-180421T1200Z/
/O.NEW.KPUB.WS.W.0008.180420T0600Z-180421T2100Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
309 PM MDT Thu Apr 19 2018

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
MDT SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 8 to 12
  inches, with localized amounts up to 20 inches, are expected.

* WHERE...The Western Mosquito Range and East Lake County Above 
  11000 Feet and Eastern Sawatch Mountains Above 11000 Feet.

* WHEN...From midnight tonight to 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Expect 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.

&&

$$

COZ073-082-200515-
/O.UPG.KPUB.WS.A.0006.180420T1200Z-180421T2100Z/
/O.NEW.KPUB.WS.W.0008.180420T0600Z-180421T2100Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
309 PM MDT Thu Apr 19 2018

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
MDT SATURDAY...

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

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet 
  and Pikes Peak Above 11000 Feet.

* WHEN...From midnight tonight to 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect
  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.

&&

$$

COZ072-074>076-080-081-200515-
/O.UPG.KPUB.WS.A.0006.180420T1200Z-180421T2100Z/
/O.NEW.KPUB.WW.Y.0021.180420T0600Z-180421T2100Z/
Northern Sangre de Cristo Mountains Between 8500 And 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-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
309 PM MDT Thu Apr 19 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches,
  with localized amounts up to 10 inches, are expected.

* WHERE...The Sangre de Cristo Mountains Between 7500 and 11000 
  Feet, Southern Sangre de Cristo Mountains Above 11000 Feet, 
  Northwestern Fremont County Above 8500 Feet, Wet Mountains Above
  10000 Feet and Teller County and Rampart Range Above 7500 Feet,
  Pikes Peak Between 7500 and 11000 Feet.

* WHEN...From midnight tonight to 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ066-068-200515-
/O.UPG.KPUB.WS.A.0006.180420T0600Z-180421T1200Z/
/O.NEW.KPUB.WW.Y.0021.180420T0600Z-180421T2100Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
309 PM MDT Thu Apr 19 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
3 PM MDT SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 inches,
  with localized amounts up to 10 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet and Eastern San 
  Juan Mountains Above 10000 Feet.

* WHEN...From midnight tonight to 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
6 follow-up statements
356 
WWUS45 KPUB 200458
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1058 PM MDT Thu Apr 19 2018

COZ058-060-073-082-201300-
/O.CON.KPUB.WS.W.0008.180420T0600Z-180421T2100Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
1058 PM MDT Thu Apr 19 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Heavy snow at times expected. Total snow accumulations of
  6 to 12 inches, with localized snow amounts around 20 inches, 
  are expected.

* WHERE...The western Mosquito Range and eastern Lake county above
  11000 feet, the eastern Sawatch Mountains above 11000 feet, the
  northern Sangre de Cristo Mountains above 11000 feet and Pikes
  Peak above 11000 feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions.   
  Expect 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.

&&

$$

COZ066-068-072-074>076-080-081-201300-
/O.CON.KPUB.WW.Y.0021.180420T0600Z-180421T2100Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
Northern Sangre de Cristo Mountains Between 8500 And 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-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
1058 PM MDT Thu Apr 19 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Heavy snow at times expected. Total snow accumulations of
  3 to 6 inches, with localized snow amounts around 15 inches, 
  are expected.

* WHERE...La Garita mountains above 10000 feet, eastern San Juan
  mountains above 10000 feet, northern Sangre de Cristo mountains
  between 8500 and 11000 feet, southern Sangre de Cristo mountains
  above 7500 feet, northwestern Fremont county above 8500 feet,
  the Wet mountains above 10000 feet, Teller county/Rampart Range
  above 7500 feet and Pikes Peak between 7500 and 11000 feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions, 
  including during the morning commute on Friday. Tree branches 
  could fall. Expect reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
922 
WWUS45 KPUB 201248
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
648 AM MDT Fri Apr 20 2018

COZ058-060-073-082-202100-
/O.CON.KPUB.WS.W.0008.000000T0000Z-180421T2100Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
648 AM MDT Fri Apr 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 6 to 9 
  inches, with localized amounts up to 15 inches, are expected.

* WHERE...Western Mosquito Range and East Lake County Above 11000
  Feet, Eastern Sawatch Mountains Above 11000 Feet, Northern 
  Sangre de Cristo Mountains Above 11000 Feet and Pikes Peak Above
  11000 Feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Expect 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.

&&

$$

COZ066-068-072-074>076-080-081-202100-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T2100Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
Northern Sangre de Cristo Mountains Between 8500 And 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-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
648 AM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches,
  with localized amounts up to 8 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet, Eastern San Juan
  Mountains Above 10000 Feet, Northern Sangre de Cristo Mountains
  Between 8500 and 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,
  Wet Mountains Above 10000 Feet and Teller County and Rampart
  Range Above 7500 Feet and Pikes Peak Between 7500 and 11000 
  Feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
660 
WWUS45 KPUB 201611
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
1011 AM MDT Fri Apr 20 2018

COZ058-060-073-082-210015-
/O.CON.KPUB.WS.W.0008.000000T0000Z-180421T2100Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
1011 AM MDT Fri Apr 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 6 to 9
  inches, with localized amounts up to 15 inches, are expected.

* WHERE...Western Mosquito Range/East Lake County Above 11000 
  Feet, Eastern Sawatch Mountains Above 11000 Feet, Northern 
  Sangre de Cristo Mountains Above 11000 Feet and Pikes Peak 
  Above 11000 Feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions. 
  Expect 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.

&&

$$

COZ066-068-072-074>076-080-081-210015-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T2100Z/
La Garita Mountains Above 10000 Feet-
Eastern San Juan Mountains Above 10000 Feet-
Northern Sangre de Cristo Mountains Between 8500 And 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-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
1011 AM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches,
  with localized amounts up to 8 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet, Eastern San Juan 
  Mountains Above 10000 Feet, Northern Sangre de Cristo 
  Mountains Between 8500 and 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, Wet Mountains Above 10000 Feet and 
  Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between 
  7500 and 11000 Feet.

* WHEN...Until 3 PM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
382 
WWUS45 KPUB 202054
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
254 PM MDT Fri Apr 20 2018

COZ068-202200-
/O.CAN.KPUB.WW.Y.0021.000000T0000Z-180421T2100Z/
Eastern San Juan Mountains Above 10000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow showers will be possible through tomorrow morning, with
accumulations generally less than 2 inches. 

$$

COZ073-082-210500-
/O.EXT.KPUB.WS.W.0008.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON MDT SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 5 to 8
  inches, with localized amounts up to 14 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet 
  and Pikes Peak Above 11000 Feet.

* WHEN...Until noon MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Expect 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.

&&

$$

COZ058-060-210500-
/O.EXT.KPUB.WS.W.0008.000000T0000Z-180421T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM MDT SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches, with localized amounts up to 10 inches, are expected.

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

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Expect 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.

&&

$$

COZ072-076-080-081-210500-
/O.EXT.KPUB.WW.Y.0021.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches,
  with localized amounts up to 8 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Between 8500 and 
  11000 Feet, Northwestern Fremont County Above 8500 Feet, Wet 
  Mountains Above 10000 Feet and Teller County/Rampart Range 
  Above 7500 Feet/Pikes Peak Between 7500 and 11000 Feet.

* WHEN...Until noon MDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ066-210500-
/O.EXT.KPUB.WW.Y.0021.000000T0000Z-180421T1200Z/
La Garita Mountains Above 10000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of up to 2 inches, 
  with localized amounts up to 6 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet.

* WHEN...Until 6 AM MDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ074-075-210000-
/O.EXT.KPUB.WW.Y.0021.000000T0000Z-180421T0000Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
254 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

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

* WHERE...Southern Sangre de Cristo Mountains Between 7500 and 
  11000 Feet and Southern Sangre de Cristo Mountains Above 11000 
  Feet.

* WHEN...Until 6 PM MDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
899 
WWUS45 KPUB 202358
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
558 PM MDT Fri Apr 20 2018

COZ074-075-210100-
/O.EXP.KPUB.WW.Y.0021.000000T0000Z-180421T0000Z/
Southern Sangre de Cristo Mountains Between 7500 and 11000 Feet-
Southern Sangre de Cristo Mountains Above 11000 Feet-
558 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

Snow showers will be possible through tomorrow morning, with
accumulations generally less than 2 inches. 

$$

COZ073-082-210800-
/O.CON.KPUB.WS.W.0008.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
558 PM MDT Fri Apr 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 5 to 8 
  inches, with localized amounts up to 15 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet 
  and Pikes Peak Above 11000 Feet.

* WHEN...Until noon MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Expect 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.

&&

$$

COZ058-060-210800-
/O.CON.KPUB.WS.W.0008.000000T0000Z-180421T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
558 PM MDT Fri Apr 20 2018

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 7 
  inches are expected.

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

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on difficult travel conditions, 
  including during the evening commute. Expect 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.

&&

$$

COZ072-076-080-081-210800-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
558 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches, 
  with localized amounts up to 8 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Between 8500 and
  11000 Feet, Northwestern Fremont County Above 8500 Feet, Wet
  Mountains Above 10000 Feet and Teller County, the Rampart Range
  Above 7500 Feet and Pikes Peak Between 7500 and 11000 Feet.

* WHEN...Until noon MDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ066-210800-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T1200Z/
La Garita Mountains Above 10000 Feet-
558 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of up to 2 inches, 
  with localized amounts up to 4 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet.

* WHEN...Until 6 AM MDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$
301 
WWUS45 KPUB 210113
WSWPUB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pueblo CO
713 PM MDT Fri Apr 20 2018

COZ073-082-211030-
/O.CAN.KPUB.WS.W.0008.000000T0000Z-180421T1800Z/
/O.EXA.KPUB.WW.Y.0021.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Above 11000 Feet-
Pikes Peak Above 11000 Feet-
713 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 2 to 5 inches,
  with localized amounts up to 8 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Above 11000 Feet 
  and Pikes Peak Above 11000 Feet.

* WHEN...Until noon MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ058-060-211030-
/O.CAN.KPUB.WS.W.0008.000000T0000Z-180421T1200Z/
/O.EXA.KPUB.WW.Y.0021.000000T0000Z-180421T1200Z/
Western Mosquito Range/East Lake County Above 11000 Feet-
Eastern Sawatch Mountains Above 11000 Feet-
713 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches, 
  with localized amounts up to 5 inches, are expected.

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

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ072-076-080-081-211030-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T1800Z/
Northern Sangre de Cristo Mountains Between 8500 And 11000 Feet-
Northwestern Fremont County Above 8500 Feet-
Wet Mountains Above 10000 Feet-
Teller County/Rampart Range Above 7500 Feet/Pikes Peak Between
7500 And 11000 Feet-
713 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches, 
  with localized amounts up to 8 inches, are expected.

* WHERE...Northern Sangre de Cristo Mountains Between 8500 and
  11000 Feet, Northwestern Fremont County Above 8500 Feet, Wet
  Mountains Above 10000 Feet and Teller County, the Rampart Range
  Above 7500 Feet and Pikes Peak Between 7500 and 11000 Feet.

* WHEN...Until noon MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

COZ066-211030-
/O.CON.KPUB.WW.Y.0021.000000T0000Z-180421T1200Z/
La Garita Mountains Above 10000 Feet-
713 PM MDT Fri Apr 20 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
SATURDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches,
   with localized amounts up to 4 inches, are expected.

* WHERE...La Garita Mountains Above 10000 Feet.

* WHEN...Until 6 AM MDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Expect 
  reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect 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.

&&

$$

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 Apr 19, 11:44 AM MDT, 3 hours 25 minutes earlier.

Area forecast discussion, Apr 19, 11:44 AM MDT, 3 hours 25 minutes before
Area Forecast Discussion
National Weather Service Pueblo CO
1144 AM MDT Thu Apr 19 2018

.SHORT TERM...(Today and tonight)
Issued at 500 AM MDT Thu Apr 19 2018

...High Fire Danger and Evening Precip Chances Thursday...

An impressive mid-level trough, currently  centered over the west-
central California coast, will advance toward Colorado during the
day on Thursday. As the trough approaches the region, deepening
surface low pressure over western Colorado combined with high
pressure residing to our east will tighten the pressure gradient
over eastern Colorado, leading to strong southeasterly surface
winds. Winds across the plains and San Luis Vally will strengthen
throughout the afternoon into the early evening, reaching sustained
levels of 22-32 knots and gusting to 40-45 knots. Continued low RH
values of 10-15% combined with the gusty winds and dry fuels will
lead to critical fire weather conditions across much of the forecast
area during the afternoon and early evening. Further, strong surface
winds may cause blowing dust across parts of the eastern plains.
Winds will decrease only slightly during the evening, still gusting
over 20 knots in many areas.

The mid-level trough evolves into a closed low as it advances into
the four corners region this afternoon into the evening, poking the
exit region of a 100+ knot 300 mb jet into southern Colorado. Strong
southerly/southeasterly low-level flow will drive increased moisture
into the continental divide region, including TPW values in excess
of 0.4". The favorable moisture combined with increasing upper-level
and terrain-induced forcing will develop snow showers across the
continental divide after 00Z. Some of the snow showers will be
convective given the presence of weak instability. A few inches of
snowfall is expected overnight, with higher amounts possible in
convective cells. Snow showers will begin to develop over the
Sangre's by late evening, and isolated rain showers across the
plains by early Friday morning.

Temperatures on Thursday across the plains will rebound into the
upper 60s to low 70s, around 63 in Colorado Springs, and the mid 60s
in the San Luis Valley. Cloud cover will help keep overnight lows
up, with low to mid 40s expected across the plains, and slightly
cooler in the San Luis Valley. Line

.LONG TERM...(Friday through Wednesday)
Issued at 500 AM MDT Thu Apr 19 2018

Longer term meteorological issues continue to include increasing
precipitation potential into Friday and Saturday, winds,
temperatures and thunderstorm potential at times.

Closed upper low centered over east-central Utah at 12Z Friday is
projected to be centered just east of Pueblo by 06Z Saturday
before moving into southwestern Oklahoma by 18Z Saturday and then
into northwestern Arkansas by 12Z Sunday.

This system is projected to bring unsettled and cooler conditions
to many locations of the forecast district from later tonight
into Saturday(including snow, heavy at times over many higher
terrain locations), therefore, have issued a Winter Storm Watch
during this time-frame to account for this potential. In addition,
thunderstorms will also be possible at times with this system.

More tranquil and warmer meteorological conditions are then
expected to return to the majority of the forecast district from
Saturday evening into Monday as transitory upper ridging passed by
to the south.

Then, a return to somewhat more unsettled conditions at times
will be possible Tuesday into Wednesday as a couple of relatively
weak upper systems impact the CWA.

The highest potential for gusty winds during the longer term
should be realized into Friday, while coolest temperatures
are expected Friday and Saturday, with warmest conditions

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon)
Issued at 1140 AM MDT Thu Apr 19 2018

VFR conditions are anticipated at the 3 taf sites; KPUB, KALS and
KCOS, through most of tonight. Towards sunrise, cigs will lower at
KALS and mvfr conditions will be likely tomorrow morning as rain
and snow will be possible. It will remain windy at KALS through
the period.

For KCOS, VFR is likely until tomorrow morning, then cigs will
lower to mvfr and showers will develop by late tomorrow morning.
It will be windy at KCOS through the period.

KPUB will likely be VFR next 24 hours. Winds will pick up at KPUB
by early to mid afternoon and it will remain windy through the
remainder of the period.

&&

.PUB WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning until 8 PM MDT this evening for COZ220>222-
224>233-235.

Winter Storm Watch from late tonight through late Friday night
for COZ058-060-061-063-066-068.

Winter Storm Watch from Friday morning through Saturday
afternoon for COZ072>076-080>082.

&&

AVIATION...HODANISH
Hazardous weather outlook, Apr 19, 12:28 PM MDT, 2 hours 41 minutes before
Hazardous Weather Outlook
National Weather Service Pueblo CO
1228 PM MDT Thu Apr 19 2018

COZ058>089-093>099-201830-
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-
1228 PM MDT Thu Apr 19 2018

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

.DAY ONE...This Afternoon and Tonight

Critical fire weather conditions will develop across a large portion
of southeast and south central Colorado, with humidity values between
10 and 15 percent, and 25 to 35 mph sustained winds, gusting up
to 40 to 45 mph. Areas of blowing dust may cause reduced
visibilities at times this afternoon and evening across portions
of the southeast plains.

Snow showers will develop across the continental divide this
evening, with a few inches of accumulation expected by Friday
morning. In the eastern mountains, a couple inches of snow
accumulation is possible overnight. Most of the accumulating snow
will occur above 10000 feet.

A few thunderstorms will be possible this evening over the
mountains and high valleys. The main threats will be lightning,
small hail, and gusty outflow winds. Isolated heavy snow showers
could occur over the mountains this evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A Pacific storm will bring mountain snows and valley rains to the
region Friday. Significant accumulating snow will be possible at
higher elevations. Over the plains, rain is expected, mainly over
the far eastern plains and the Palmer divide. Rain showers are
expected elsewhere.

In addition, a few thunderstorms, capable of producing brief
periods of moderate to heavy precipitation, hazardous lightning,
gusty winds and small hail will be possible Friday afternoon.

Friday night into Saturday, snow levels will fall, and
accumulating snow will be possible in the valleys and across the
Palmer Divide. Light accumulations on grassy surfaces will be
possible.

.SPOTTER INFORMATION STATEMENT...

Weather conditions that meet reporting criteria for spotters will be
likely over the mountains along the Continental Divide tonight, and
will be possible over the eastern mountains and high valleys.

Hodanish

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 4:22 AM MDTWinter Storm WatchPUBAlamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more11 hr
Apr 19, 3:09 PM MDTWinter Weather AdvisoryPUBAlamosa, Chaffee, Conejos, Costilla, Custer, El Paso and 9 more44 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.