Alert archive / Colorado / Winter Storm Watches in 2021
Winter Storm Watch 14, NWS Pueblo, CO
NWS Pueblo, CO issued this winter storm watch at Dec 26, 2021, 2:52 PM MST for Conejos County, Mineral County, Rio Grande County, Colorado. It took effect at Dec 27, 2021, 11:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 26, 2021, 2:52 PM MST (21:52 UTC)
- In effect from
- Dec 27, 2021, 11:00 AM MST
- Expired
- Dec 27, 2021, 3:33 AM MST
- In force
- 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 21:55 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
Grand Junction, CO (KGJT), launched 12:00Z, 9.9 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.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1865 m above ground
- 0-6 km bulk shear
- 113 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
124 WWUS45 KPUB 262152 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 252 PM MST Sun Dec 26 2021 COZ068-270600- /O.NEW.KPUB.WS.A.0014.211227T1800Z-211229T1800Z/ /O.EXT.KPUB.WS.W.0013.000000T0000Z-211227T0700Z/ Eastern San Juan Mountains Above 10000 Feet- 252 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY MORNING THROUGH WEDNESDAY MORNING... * WHAT...For the Winter Storm Warning, light snow and blowing snow with low visibility. Additional snow accumulations of 1 to 3 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 1 to 2 feet possible. Winds could gust as high as 60 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...For the Winter Storm Warning, until midnight MST tonight. For the Winter Storm Watch, from late Monday morning through Wednesday morning. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ060-270600- /O.CON.KPUB.WS.W.0013.000000T0000Z-211227T1200Z/ Eastern Sawatch Mountains Above 11000 Feet- 252 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow. Additional snow accumulations of 4 to 10 inches. Winds gusting as high as 70 mph causing considerable blowing and drifting snow. * WHERE...Eastern Sawatch Mountains Above 11000 Feet. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on icy and snow packed roads. Widespread blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ066-067-270600- /O.EXT.KPUB.WW.Y.0034.000000T0000Z-211227T0700Z/ La Garita Mountains Above 10000 Feet- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Feet- 252 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * WHAT...Snow. Additional snow accumulations of up to 4 inches. Winds gusting as high as 70 mph causing widespread blowing and drifting snow. * WHERE...Upper Rio Grande Valley and Eastern San Juan Mountains Below 10000 Feet. * WHEN...Until midnight MST tonight. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ058-059-061-270600- /O.CON.KPUB.WW.Y.0034.000000T0000Z-211227T1200Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- 252 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow. Additional snow accumulations of up to 4 inches. Winds gusting as high as 70 mph causing widespread blowing and drifting snow. * WHERE...Lake County Below 11000 Feet including Leadville, Western Mosquito Range and East Lake County Above 11000 Feet, and Western Chaffee County Between 9000 and 11000 Feet. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
3 follow-up statements
297 WWUS45 KPUB 270545 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1045 PM MST Sun Dec 26 2021 COZ068-271345- /O.CON.KPUB.WS.W.0013.000000T0000Z-211227T0700Z/ /O.CON.KPUB.WS.A.0014.211227T1800Z-211229T1800Z/ Eastern San Juan Mountains Above 10000 Feet- 1045 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... ...WINTER STORM WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH WEDNESDAY MORNING... * WHAT...For the Winter Storm Warning, light snow and blowing snow with low visibility. Additional snow accumulations generally an inch or two. For the Winter Storm Watch, heavy snow possible . Total snow accumulations of 1 to 2 feet possible. Winds could gust as high as 60 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...For the Winter Storm Warning, until midnight MST tonight. For the Winter Storm Watch, from late Monday morning through Wednesday morning. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ060-271200- /O.CON.KPUB.WS.W.0013.000000T0000Z-211227T1200Z/ Eastern Sawatch Mountains Above 11000 Feet- 1045 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow. Additional snow accumulations of 3 to 4 inches. Winds gusting as high as 70 mph causing considerable blowing and drifting snow. * WHERE...Eastern Sawatch Mountains Above 11000 Feet. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on icy and snow packed roads. Widespread blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ058-059-061-271200- /O.CON.KPUB.WW.Y.0034.000000T0000Z-211227T1200Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- 1045 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow. Additional snow accumulations of up to 2 to 3 inches. Winds gusting as high as 70 mph causing widespread blowing and drifting snow. * WHERE...Lake County Below 11000 Feet including Leadville, Western Mosquito Range and East Lake County Above 11000 Feet, and Western Chaffee County Between 9000 and 11000 Feet. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ066-067-270700- /O.CON.KPUB.WW.Y.0034.000000T0000Z-211227T0700Z/ La Garita Mountains Above 10000 Feet- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Feet- 1045 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... * WHAT...Snow. Additional snow accumulations of an inch or two. Winds gusting as high as 70 mph causing widespread blowing and drifting snow. * WHERE...Upper Rio Grande Valley and Eastern San Juan Mountains Below 10000 Feet. * WHEN...Until midnight MST tonight. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Hodanish
682 WWUS45 KPUB 270643 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1143 PM MST Sun Dec 26 2021 COZ068-271445- /O.EXP.KPUB.WS.W.0013.000000T0000Z-211227T0700Z/ /O.CON.KPUB.WS.A.0014.211227T1800Z-211229T1800Z/ Eastern San Juan Mountains Above 10000 Feet- 1143 PM MST Sun Dec 26 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM 11 AM MST MONDAY THROUGH WEDNESDAY MORNING... ...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT... * WHAT...The winter storm warning will expire tonight. A new winter storm watch goes in effect late tomorrow morning, and snowfall amounts of 12 to 24 inches will be possible Winds could gust as high as 60 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet County. * WHEN...From 11 AM MST Monday through Wednesday morning. * IMPACTS...Travel could be difficult. Areas of blowing snow could significantly reduce visibility. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ COZ066-067-270745- /O.EXP.KPUB.WW.Y.0034.000000T0000Z-211227T0700Z/ La Garita Mountains Above 10000 Feet- Upper Rio Grande Valley/Eastern San Juan Mountains Below 10000 Feet- 1143 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MST TONIGHT... The winter weather advisory for the La Garita mountains will expire tonight. Light snow will be possible the rest of tonight. More snow will re-develop tomorrow and last into Wednesday. $$ COZ060-271200- /O.CON.KPUB.WS.W.0013.000000T0000Z-211227T1200Z/ Eastern Sawatch Mountains Above 11000 Feet- 1143 PM MST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches possible. Winds gusting as high as 50 mph. * WHERE...Eastern Sawatch Mountains Above 11000 Feet County. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ COZ058-059-061-271200- /O.CON.KPUB.WW.Y.0034.000000T0000Z-211227T1200Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- 1143 PM MST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST MONDAY... * WHAT...Snow. Additional snow accumulations of an inch or two. Winds gusting as high as 45 mph. * WHERE...Leadville Vicinity/Lake County Below 11000 Feet, Western Mosquito Range/East Lake County Above 11000 Feet and Western Chaffee County Between 9000 and 11000 Feet Counties. * WHEN...Until 5 AM MST Monday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. Gusty winds could bring down tree branches. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Hodanish
507 WWUS45 KPUB 271033 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 333 AM MST Mon Dec 27 2021 COZ068-271845- /O.UPG.KPUB.WS.A.0014.211227T1800Z-211229T1800Z/ /O.EXB.KPUB.WS.W.0013.000000T0000Z-211230T0000Z/ Eastern San Juan Mountains Above 10000 Feet- 333 AM MST Mon Dec 27 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Heavy snow. Additional snow accumulations of 1 to 2 feet with locally higher amounts across the west and southwest facing slopes. Winds gusting as high as 60 mph causing considerable blowing and drifting snow. * WHERE...Eastern San Juan Mountains Above 10000 Feet County. * WHEN...Until 5 PM MST Wednesday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow will significantly reduce visibility at times. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. * ADDITIONAL DETAILS...Continuous snow with several rounds of heavier snow will impact the area through the period. The heaviest snow will fall this afternoon through tonight and again Tuesday night into Wednesday morning. Although snow will fall lighter at times, strong winds and widespread blowing snow will keep travel conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ COZ060-271845- /O.EXT.KPUB.WS.W.0013.000000T0000Z-211230T0000Z/ Eastern Sawatch Mountains Above 11000 Feet- 333 AM MST Mon Dec 27 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Heavy snow. Additional snow accumulations of 4 to 12 inches. Winds gusting as high as 70 mph causing considerable blowing and drifting snow. * WHERE...Eastern Sawatch Mountains Above 11000 Feet County. * WHEN...Until 5 PM MST Wednesday. * IMPACTS...Travel could be very difficult. Widespread blowing snow could significantly reduce visibility. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. * ADDITIONAL DETAILS...Continuous light to moderate snow will impact the area through the period. The heaviest snow will fall this afternoon through tonight and again Tuesday night into Wednesday morning. Although snow will fall lighter at times, strong winds and widespread blowing snow will keep travel conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ066-271845- /O.EXB.KPUB.WW.Y.0034.000000T0000Z-211230T0000Z/ La Garita Mountains Above 10000 Feet- 333 AM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST WEDNESDAY... * WHAT...Snow. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 50 mph causing areas of blowing snow. * WHERE...La Garita Mountains Above 10000 Feet County. * WHEN...Until 5 PM MST Wednesday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. * ADDITIONAL DETAILS...Continuous light to moderate snow will impact the area through the period. The heaviest snow will fall this afternoon through tonight and again Tuesday night into Wednesday morning. Although snow will fall lighter at times, strong winds and areas of blowing snow will keep travel conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ COZ058-059-061-271845- /O.EXT.KPUB.WW.Y.0034.000000T0000Z-211228T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Western Chaffee County Between 9000 and 11000 Feet- 333 AM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM MST TUESDAY... * WHAT...Snow. Additional snow accumulations of 3 to 5 inches. Winds gusting as high as 55 mph causing blowing and drifting snow. * WHERE...Lake County Below 11000 Feet, Western Mosquito Range and East Lake County Above 11000 Feet and Western Chaffee County Between 9000 and 11000 Feet Counties. * WHEN...Until 8 AM MST Tuesday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
What forecasters said that day
The local office's own words before this winter storm 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 winter storm watch went out at Dec 26, 10:38 AM MST, 4 hours 14 minutes earlier.
Area forecast discussion, Dec 26, 10:38 AM MST, 4 hours 14 minutes before
Area Forecast Discussion National Weather Service Pueblo CO 1038 AM MST Sun Dec 26 2021 .SHORT TERM...(Today and tonight) Issued at 346 AM MST Sun Dec 26 2021 Key messages: 1) Heavy snow will continue across the Continental Divide with significant wind driven snow and poor visibility 2) Damaging wind gusts will spread across much of southern CO today with gusts 70-85 mph in and near the mountains and gusts up to 65 mph across the lower elevations. 3) High Fire Danger expected across the I-25 corridor and southeast plains today due to very strong winds and low relative humidity 4) Restricted visibility due to blowing dust will become a concern this afternoon across the San Luis Valley and southeast plains with blowing dust warnings possible if visibility drops sufficiently Winds have been gradually increasing across the higher mountains with highest gust so far of 64 mph at Wolf Creek Pass. With quite a bit of forward shear aloft, the lower elevations have stayed below high wind criteria so far, though that trend should be changing as strong 100+ kt upper jet at H5 translates across the area through the day. With mixing it won't take much momentum transport to reach high wind criteria across much of the region and high res deterministic models and ensemble model blends are showing a strong signal for widespread high wind criteria across the mountains San Luis Valley and adjacent southeast plains. Main challenge is how far east these higher gusts will get. Have expanded High Wind Warnings once again to include Bent county. Western Kiowa and Baca counties could get close, but there has not been sufficient run-to-run agreement in the high res models to warrant expansion that far east. Crude analysis of forecast surface pressure gradient suggests it could get very close though and will be monitoring high res model runs closely to see if further expansions eastward will be necessary. Wind should decrease after 00z and ending time of High Wind Warnings at 8 PM still looks good. Areas of blowing dust will also be of high concern today across the plains with the possibility of needing some blowing dust warnings if visibility becomes sufficiently restricted. With the strong winds and low relative humidity, critical fire weather conditions will also remain a high concern today. Getting humidity levels right around 15 percent across much of the plains within current Red Flag Warning area. Some areas to watch will be the eastern fringes of the fire zones 221, 222 and 225 (Pikes Peak, Fremont county and the Wets and Sangres). Humidity levels range in the 18-25 percent range for these areas but most of these zones maintain higher humidity values over/near the mountains where. some blow over snow showers will occur at times. Thus, will keep these zones out of the Red Flag Warning, however any activities which could start a fire should be curtailed in and near the Red Flag Warning given such strong winds today. Meanwhile, heaviest snow will impact the Continental Divide today with snowfall rates tailing back this evening behind the upper trough passage. Still looking additional accumulations of up to a foot for the eastern San Juan mountains and up to 8 inches for the eastern Sawatch range. Getting lesser amounts for the La Garitas, western Mosquitoes and the the lower elevations of Lake county, but given the strong winds over fresh snow pack, combined with some lighter accumulations of up to 4 inches, widespread blowing and drifting snow will cause adverse conditions. Current advisories handle this well. Snowfall decreases overnight and suspect that highlights may be able to be cancelled a bit earlier than current 5 AM expiration. The eastern San Juans will see at least scattered snow showers continue into Monday but accumulations after midnight look pretty light. Expansion of highlights down that way into Monday do not look necessary at this point as there may be a sufficient break between this storm and the beginning of the next. But this will continue to be assessed. -KT .LONG TERM...(Monday through Saturday) Issued at 346 AM MST Sun Dec 26 2021 Key Messages: - Multiple waves embedded in the upper-level flow will make their way across Colorado throughout the week, bringing copious amounts of precipitation to the mountains. The San Juans will likely get hit the hardest with snow, as has been the pattern recently, with the Continental Divide also getting some accumulations. - After a brief decrease in precipitation after mid-week, more unsettled weather appears to be in store for next weekend, with more mountain snow and a potential cooldown. Monday-Wednesday... The first embedded shortwave of the work week will begin to pass over on Monday, with effects lasting until mid-week. The flow aloft will mostly remain west-southwesterly, but with the strength of the upper-level jet, a few things become clear. First, orographic lift will be plentiful over our western mountains, and accumulating snow will be inevitable over the higher terrain. Snow showers are expected to begin Monday over the San Juans and Continental Divide, before spreading to the Sangre de Cristos. The Sangres should only get a few inches, while the Cont. Divide will be seeing upwards of a foot or so. Meanwhile, the greater accumulations over the San Juans will continue, with additional snowfall measuring upwards of several feet by the end of the day on Wednesday. Cooler air is expected to filter into the area along with this wave as well. Monday and Tuesday will be similar, with high temperatures in the high-40s to low-50s over the plains, and 20-30s over the higher terrain. Cooler air will filter in with the main part of the jet on Wednesday, and highs will mainly be in the 30s to low-40s. Wednesday night-Thursday... An upper-level low will dip south off the west coast, while the main jet flattens out somewhat aloft, providing Colorado with a brief lull in the unsettled weather pattern. The moist airmass from the previous few days will still be in place, although lift will be much weaker, leaving us with a few light snow showers expected mainly over the San Juans on Thursday. Additionally, high temperatures will noticeably rebound, increasing into the low-50s again over the eastern plains. Friday Onwards... Model solutions become less clear at this point, but current deterministic solutions suggest that the closed upper-low will move in from the west coast before merging with the main energy of the upper-level trough. This could potentially bring more prolific snow to our mountains into next weekend. Meanwhile, high temperatures will increase by about 5 degrees on Friday before a potent cold front is currently slated to pass over the plains on Saturday, knocking temperatures back down to near-seasonal norms. && .AVIATION...(For the 18Z TAFS through 18Z Monday afternoon) Issued at 1026 AM MST Sun Dec 26 2021 At KALS, prevailing conditions will remain VFR, with brief periods(20-30 minutes) of MVFR vis possible due to blowing dust and/or snow showers this afternoon. SW winds will remain strong, gusting near 50 kts until sunset. VFR conditions expected overnight with diminishing winds. At KPUB and KCOS, VFR conditions expected the next 24 hrs. Low risk of brief MVFR vis at KPUB due to blowing dust, though expect bulk of any visibility restrictions to be farther east toward KLHX. Strong sw winds will gust 45-50 kts until sunset at both sites, then become more w-nw and diminish this evening. && .PUB WATCHES/WARNINGS/ADVISORIES... Red Flag Warning until 5 PM MST this afternoon for COZ226>237. High Wind Warning until 8 PM MST this evening for COZ069>080- 083>089-093-094-097. Winter Weather Advisory until 5 AM MST Monday for COZ058-059-061- 066-067. Winter Storm Warning until 5 AM MST Monday for COZ060-068. && SHORT TERM...KT LONG TERM...GARBEROGLIO AVIATION...PETERSEN
Hazardous weather outlook, Dec 26, 5:03 AM MST, 9 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Pueblo CO 503 AM MST Sun Dec 26 2021 COZ058>089-093>099-271215- 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- 503 AM MST Sun Dec 26 2021 This hazardous weather outlook is for portions of central...east central...south central and southeast Colorado. .DAY ONE...Today and Tonight Heavy wind driven snow will continue today along the Continental Divide with an additional 4 to 12 inches of snow possible. Considerable blowing and drifting snow will make travel hazardous across the mountain passes. Damaging winds will spread across the mountains, San Luis Valley, and most of the southeast plains today. Gusts up to 80 mph will be possible across the mountains with gusts up to 65 mph across the lower elevations. Areas of blowing dust could reduce visibility to less than a mile at times across the San Luis Valley and portions of the southeast plains today at the height of the strongest winds. The strong winds combined with the persistent dry conditions will lead to very high fire danger across the southeast plains today where conditions will be favorable for very rapid rates of fire growth and spread. .DAYS TWO THROUGH SEVEN...Monday through Saturday Moderate to heavy snow will be possible over our mountains Monday into Tuesday with the passage of another upper-level wave. Along with this, winds over the entire area will be increasing and will remain gusty. The heaviest snow will be over our western mountains. After a brief lull around Thursday, precipitation over the mountains will increase again heading into next weekend. .SPOTTER INFORMATION STATEMENT... Weather conditions that meet reporting criteria for spotters will be likely across south central and southeast Colorado today, and across the mountains continuing into tonight. 31/GARBEROGLIO
In the hours before
Local storm report, Dec 26, 2:07 PM MST, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
207 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0127 PM NON-TSTM WND GST 3 ESE HOEHNE 37.27N 104.33W
12/26/2021 M71 MPH LAS ANIMAS CO AWOS
AWOS STATION KTAD TRINIDAD AIRPORT.
&&
MWLocal storm report, Dec 26, 2:08 PM MST, 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
208 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0123 PM NON-TSTM WND GST 4 S CHERAW 38.05N 103.52W
12/26/2021 M64 MPH OTERO CO ASOS
ASOS STATION KLHX LA JUNTA AIRPORT.
&&
MWLocal storm report, Dec 26, 2:47 PM MST, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
247 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 PM NON-TSTM WND GST 2 NNE FLORENCE 38.42N 105.10W
12/26/2021 M60 MPH FREMONT CO AWOS
AWOS STATION K1V6 FREMONT COUNTY ARPT.
&&
MWLocal storm report, Dec 26, 2:48 PM MST, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
248 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0134 PM NON-TSTM WND GST 3 SW SWISSVALE 38.44N 105.96W
12/26/2021 M61 MPH FREMONT CO MESONET
MESONET STATION BEKC2 BEAR CREEK.
&&
MWLocal storm report, Dec 26, 2:49 PM MST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
249 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0225 PM NON-TSTM WND GST 1 SE PETERSON AFB 38.82N 104.68W
12/26/2021 M53 MPH EL PASO CO ASOS
ASOS STATION KCOS COLORADO SPRINGS AIRPORT.
&&
MWLocal storm report, Dec 26, 2:50 PM MST, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PUEBLO CO
250 PM MST SUN DEC 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0222 PM NON-TSTM WND GST 4 SE AIR FORCE ACADEMY 38.97N 104.82W
12/26/2021 M52 MPH EL PASO CO AWOS
AWOS STATION KAFF US AIR FORCE ACADEMY.
&&
MWNearby
Winter Storm Watches in Colorado, 2021Every winter storm watch in 2021
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.