Travel & RV Weather Forecast Monday 19 December

** Heads Up ** High impact winter storm and arctic front will create dangerous conditions for RV travel over much of the central and eastern U.S. Wednesday through Friday. I-40 and north will see icy roads. Wind chill temperatures Thursday afternoon along I-40 between New Mexico and Arkansas will be -10 to -20 deg F; Friday morning air temperatures will be around zero deg F. I-20 and I-10 will stay snow-free, but temperatures Thursday night will be in the low teens. Plan for wind gusts 35-50 mph over much of the Midwest and East Friday afternoon. See graphics at the end of this post for details.

  • Possible flash flooding today and Tuesday for the northern Gulf Coast and Florida, respectively.
  • Snow for the Washington Cascades and northern Rockies tonight through Wednesday.
  • Major winter storm will impact the central and eastern U.S. starting mid-week, with snow (Midwest), rain (East), high winds and very cold temperatures.
  • Big warm-up for the entire country starts after Christmas.

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WA Cascades: Winter Storm Watch late tonight through late Tuesday night. 9-21 inches snow expected. I-90 impacted.

— Southeast WA and northeast OR: Winter Weather Advisories this morning. An additional 2-4 inches snow possible with wind gusts to 35 mph. I-84 impacted.

Southeast WA and northeast OR: Winter Storm Watches late tonight through Wednesday morning. 5-8 inches snow possible. I-84 impacted.

— CA Sacramento and San Joaquin Valleys: Dense Fog Advisories through midday today. I-5, I-80, CA-99 impacted.


Northwest and west-central MT; northern ID: Winter Storm Warnings (northwest MT), Watches and Advisories through Wednesday. Up to 2-7 additional of inches of snow this morning with gusts to 35 mph. Then 6-18 snow possible Tuesday and Wednesday. I-90 impacted.

Western, northern and central MT: Wind Chill Warnings this evening through Friday. Wind chill values as low as -55 deg F. I-15, I-90, I-94 impacted.

— Western WY: Winter Storm Warnings (south of Yellowstone) and Advisories tonight through Wednesday night. 10-20 inches snow in the mountains and 6-11 inches in the lower elevations and valleys. Gusts to 50 mph in the mountains.

Southeast WY: High Wind Warnings through this afternoon. Gusts 65-70 mph. I-25, I-80 impacted.

Northwest and southeast WY: Strong to high winds Tuesday afternoon. Gusts 45-60 mph. I-25, I-80 impacted.

Portions of northern and eastern WY; north-central and eastern CO from I-25 eastwards: Wind Chill Watches Wednesday through Friday. Wind chill values dropping to between -40 and -55 deg F. I-25, I-70, I-76, I-80, I-90 impacted.


Central and eastern NE; adjacent north-central KS and western IA: Winter Storm Watches Wednesday evening through Thursday afternoon. Blizzard conditions possible. 2-4 inches snow and wind gusts to 45 mph. I-29, I-80 impacted.

Central and western ND; northwest SD: Wind Chill Warnings this evening through Saturday. Wind chill values as low as -55 deg F. I-94 impacted.

Most of SD; southwest MN; western IA; NE; northwest KS: Wind Chill Watches Wednesday afternoon through Friday. Wind Chill values between -35 and -60 deg F.

— MN Arrowhead: Winter Weather Advisory this afternoon through midday Tuesday. 2-5 inches snow likely. I-35 impacted.


Western and north-central NY downwind of Lake Ontario: Lake Effect Snow Warning and Winter Weather Advisories continue today. Up to 2-8 inches of additional lake effect snow. I-81, I-90, NY Thruway impacted.

— Northern ME: Winter Storm Warnings continue through this afternoon. Additional snow accumulations of 1-4 inches; total storm accumulations 12-20 inches. I-95 impacted.

Access to real-time road information:

Phone numbers and websites for road conditions in all 50 states. Courtesy of the Cheyenne WY Weather Forecast Office

Severe Weather and Tropical Watches and Warnings

— See for the latest Tornado and Severe Thunderstorm WATCHES

— See for the latest Tropical Cyclone WARNINGS and information.

— See for the latest Tornado, Severe Thunderstorm, and Flash Flood WARNINGS.

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