Alert archive / Colorado / Winter Storm Warnings in 2018
Winter Storm Warning 7, NWS Pueblo, CO
NWS Pueblo, CO issued this winter storm warning at Apr 7, 2018, 4:07 AM MDT for Chaffee County, Lake County, Saguache County, Colorado. It took effect at Apr 7, 2018, 9:00 PM MDT. It was in force for 12 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
- Apr 7, 2018, 4:07 AM MDT (10:07 UTC)
- In effect from
- Apr 7, 2018, 9:00 PM MDT
- Expired
- Apr 8, 2018, 9:00 AM MDT
- In force
- 12 hr
- Issued by
- NWS Pueblo, CO
Counties Chaffee County, CO, Lake County, CO, Saguache County, CO
The radar
The Grand Junction radar (KGJX), 173 km from the middle of the area, began a volume at 10:09 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 |
|---|---|---|---|
| Apr 8, 12:20 AM MDT | SNOW 4.1 | 2 Ne Leadville, CO | .74 TOTAL WATER FOR 4/7 FROM RAIN SNOW MIX. |
| Apr 8, 7:00 AM MDT | SNOW 8 | 1 Nnw Monarch Pass, CO | 24 HOUR SNOWFALL REPORTED BY MONARCH SKI AREA. 7 FELL OVERNIGHT AND 15 HAS FALLEN IN THE PAST 48 HOURS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 10.1 hours before the alert went out and 199 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
- 2208 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
623 WWUS45 KPUB 071007 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 407 AM MDT Sat Apr 7 2018 COZ058>060-071815- /O.NEW.KPUB.WS.W.0007.180408T0300Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 407 AM MDT Sat Apr 7 2018 ...WINTER STORM WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 inches, with localized amounts up to 10 inches, are expected. * WHERE...Western Mosquito Range/East Lake County Above 11000 Feet, Leadville Vicinity/Lake County Below 11000 Feet and Eastern Sawatch Mountains Above 11000 Feet. * WHEN...From 9 PM this evening to 9 AM MDT Sunday. * 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. && $$
5 follow-up statements
195 WWUS45 KPUB 071648 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1048 AM MDT Sat Apr 7 2018 COZ058>060-080100- /O.CON.KPUB.WS.W.0007.180408T0300Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 1048 AM MDT Sat Apr 7 2018 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 inches, with localized amounts up to 10 inches, are expected. * WHERE...Western Mosquito Range/East Lake County Above 11000 Feet, Leadville Vicinity/Lake County Below 11000 Feet and Eastern Sawatch Mountains Above 11000 Feet. * WHEN...From 9 PM this evening to 9 AM MDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
671 WWUS45 KPUB 072054 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 254 PM MDT Sat Apr 7 2018 COZ058>060-080500- /O.CON.KPUB.WS.W.0007.180408T0300Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 254 PM MDT Sat Apr 7 2018 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SUNDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches are expected, with locally higher amounts. * WHERE...Western Mosquito Range/East Lake County Above 11000 Feet, Leadville Vicinity/Lake County Below 11000 Feet and Eastern Sawatch Mountains Above 11000 Feet. * WHEN...From 9 PM this evening to 9 AM MDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Damage to trees and power lines is likely. 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. && $$
454 WWUS45 KPUB 080425 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 1025 PM MDT Sat Apr 7 2018 COZ058>060-081300- /O.CON.KPUB.WS.W.0007.000000T0000Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 1025 PM MDT Sat Apr 7 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT SUNDAY... * WHAT...Heavy snow. Additional snow accumulations of 3 to 6 inches, with localized amounts up to 8 inches, are expected. * WHERE...Western Mosquito Range and East Lake County Above 11000 Feet, Leadville Vicinity and Lake County Below 11000 Feet, and Eastern Sawatch Mountains Above 11000 Feet. * WHEN...Until 9 AM MDT Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Damage to trees and power lines is likely. Expect significant reductions in visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
584 WWUS45 KPUB 080934 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 334 AM MDT Sun Apr 8 2018 COZ058>060-081500- /O.CON.KPUB.WS.W.0007.000000T0000Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 334 AM MDT Sun Apr 8 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches are expected. * WHERE...Western Mosquito Range/East Lake County Above 11000 Feet, Leadville Vicinity/Lake County Below 11000 Feet and Eastern Sawatch Mountains Above 11000 Feet. * WHEN...Until 9 AM MDT this morning. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Expect significant reductions in visibility at times. Tree branches could break. 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. && $$
564 WWUS45 KPUB 081500 WSWPUB URGENT - WINTER WEATHER MESSAGE National Weather Service Pueblo CO 900 AM MDT Sun Apr 8 2018 COZ058>060-081600- /O.EXP.KPUB.WS.W.0007.000000T0000Z-180408T1500Z/ Western Mosquito Range/East Lake County Above 11000 Feet- Leadville Vicinity/Lake County Below 11000 Feet- Eastern Sawatch Mountains Above 11000 Feet- 900 AM MDT Sun Apr 8 2018 ...WINTER STORM WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING... The Winter Storm Warning for Lake county and western Chaffee county above 11000 feet, expires at 9 am. There will still be some light snow at times, but significant snow has ended. $$
The office that day
Everything else NWS Pueblo, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 2:58 PM MDT | Red Flag Warning | PUB | Alamosa, Conejos, Costilla, Rio Grande, Saguache | 28 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.