Alert archive / Colorado / Winter Storm Warnings in 2021
Winter Storm Warning 9, NWS Pueblo, CO
NWS Pueblo, CO issued this winter storm warning at Oct 11, 2021, 4:14 AM MDT for Conejos County, Mineral County, Rio Grande County, Colorado. It took effect at Oct 12, 2021, 12:00 AM MDT. It was in force for 24 hr. 2 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
- Oct 11, 2021, 4:14 AM MDT (10:14 UTC)
- In effect from
- Oct 12, 2021, 12:00 AM MDT
- Expired
- Oct 12, 2021, 11:44 PM MDT
- In force
- 24 hr
- Issued by
- NWS Pueblo, CO
Counties Conejos County, CO, Mineral County, CO, Rio Grande County, CO
The radar
The Pueblo radar (KPUX), 230 km from the middle of the area, began a volume at 10:15 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 12, 9:34 AM MDT | SNOW 2 | Creede, CO | SNOW STARTED AT 7AM. SNOW CURRENTLY STILL FALLING. |
| Oct 12, 12:42 PM MDT | SNOW 3.5 | Creede, CO | UPDATED SNOW TOTAL FROM SPOTTER. ANOTHER 1.5IN FELL SINCE LAST REPORT THIS MORNING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 10.2 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1971 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
779 WWUS45 KPUB 111014 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 414 AM MDT Mon Oct 11 2021 COZ068-111815- /O.UPG.KPUB.WS.A.0009.211012T0600Z-211013T0000Z/ /O.NEW.KPUB.WS.W.0009.211012T0600Z-211013T0000Z/ Eastern San Juan Mountains Above 10000 Feet- 414 AM MDT Mon Oct 11 2021 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 12 inches. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...From midnight tonight to 6 PM MDT Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. 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. && $$ COZ066-111815- /O.NEW.KPUB.WW.Y.0029.211012T0600Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 414 AM MDT Mon Oct 11 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations of 8 inches. Winds gusting as high as 50 mph. * WHERE...La Garita Mountains Above 10000 Feet. * WHEN...From midnight tonight to 6 PM MDT Tuesday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact travel. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
6 follow-up statements
401 WWUS45 KPUB 111840 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1240 PM MDT Mon Oct 11 2021 COZ068-121300- /O.CON.KPUB.WS.W.0009.211012T0600Z-211013T0000Z/ Eastern San Juan Mountains Above 10000 Feet- 1240 PM MDT Mon Oct 11 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of around 12 inches, with locally higher amounts possible. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...From midnight tonight to 6 PM MDT Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. 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. && $$ COZ066-121300- /O.CON.KPUB.WW.Y.0029.211012T0600Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 1240 PM MDT Mon Oct 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT TUESDAY... * WHAT...Snow expected. Total snow accumulations of around 8 inches, with locally higher amounts possible. Winds gusting as high as 50 mph. * WHERE...La Garita Mountains Above 10000 Feet. * WHEN...From midnight tonight to 6 PM MDT Tuesday. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact travel. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Cohen
928 WWUS45 KPUB 120938 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 338 AM MDT Tue Oct 12 2021 COZ068-121745- /O.CON.KPUB.WS.W.0009.000000T0000Z-211013T0000Z/ Eastern San Juan Mountains Above 10000 Feet- 338 AM MDT Tue Oct 12 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Heavy snow expected. Total snow accumulations of around 12 inches, with locally higher amounts possible. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. 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. && $$ COZ066-121745- /O.CON.KPUB.WW.Y.0029.000000T0000Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 338 AM MDT Tue Oct 12 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected. Total snow accumulations of around 8 inches, with locally higher amounts possible. Winds gusting as high as 55 mph. * WHERE...La Garita Mountains Above 10000 Feet. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact travel. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
564 WWUS45 KPUB 121721 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1121 AM MDT Tue Oct 12 2021 COZ068-130000- /O.CON.KPUB.WS.W.0009.000000T0000Z-211013T0000Z/ Eastern San Juan Mountains Above 10000 Feet- 1121 AM MDT Tue Oct 12 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Heavy snow expected. Total snow accumulations of around 12 inches, with locally higher amounts possible. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. 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. && $$ COZ066-130000- /O.CON.KPUB.WW.Y.0029.000000T0000Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 1121 AM MDT Tue Oct 12 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected. Total snow accumulations of around 8 inches, with locally higher amounts possible. Winds gusting as high as 55 mph. * WHERE...La Garita Mountains Above 10000 Feet. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact travel. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
967 WWUS45 KPUB 122109 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 309 PM MDT Tue Oct 12 2021 COZ068-130515- /O.EXT.KPUB.WS.W.0009.000000T0000Z-211013T0600Z/ Eastern San Juan Mountains Above 10000 Feet- 309 PM MDT Tue Oct 12 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations of around 12 inches, with locally higher amounts possible. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact travel. Patchy blowing snow could significantly reduce visibility. Strong winds could cause tree damage. 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. && $$ COZ066-130000- /O.CON.KPUB.WW.Y.0029.000000T0000Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 309 PM MDT Tue Oct 12 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Snow expected. Total snow accumulations of around 8 inches, with locally higher amounts possible. Winds gusting as high as 55 mph. * WHERE...La Garita Mountains Above 10000 Feet. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact travel. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
080 WWUS45 KPUB 122353 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 553 PM MDT Tue Oct 12 2021 COZ066-130100- /O.CAN.KPUB.WW.Y.0029.000000T0000Z-211013T0000Z/ La Garita Mountains Above 10000 Feet- 553 PM MDT Tue Oct 12 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow showers and flurries will persist through the evening, though any additional accumulations will be light. $$ COZ068-130600- /O.CON.KPUB.WS.W.0009.000000T0000Z-211013T0600Z/ Eastern San Juan Mountains Above 10000 Feet- 553 PM MDT Tue Oct 12 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...Heavy snow expected. Total snow accumulations of around 12 inches, with locally higher amounts possible. Winds gusting as high as 65 mph. * WHERE...Eastern San Juan Mountains Above 10000 Feet. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel could be very difficult over Wolf Creek Pass. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
263 WWUS45 KPUB 130544 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1144 PM MDT Tue Oct 12 2021 COZ068-130645- /O.CAN.KPUB.WS.W.0009.000000T0000Z-211013T0600Z/ Eastern San Juan Mountains Above 10000 Feet- 1144 PM MDT Tue Oct 12 2021 ...WINTER STORM WARNING IS CANCELLED... Flurries or light snow showers will continue for a few more hours overnight, though little or no additional accumulation is expected. $$
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 4:14 AM MDT | Winter Weather Advisory | PUB | Mineral, Rio Grande, Saguache | 38 hr |
| Oct 11, 12:40 PM MDT | Red Flag Warning | PUB | Bent, Crowley, El Paso, Fremont, Huerfano, Kiowa and 3 more | 30 hr |
| Oct 11, 12:40 PM MDT | High Wind Warning | PUB | Alamosa, Baca, Bent, Conejos, Costilla, Crowley and 9 more | 30 hr |
Nearby
Winter Storm Warnings in Colorado, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.