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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Pacific:

— 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.

Mountain:

— 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:

— 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.

Eastern:

— 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 https://rvweather.com/warnings-watches-and-advisories/#SPC_Tornado_Watch for the latest Tornado and Severe Thunderstorm WATCHES

— See https://rvweather.com/warnings-watches-and-advisories/#NHC_Hurricane_Advisory for the latest Tropical Cyclone WARNINGS and information.

— See https://rvweather.com/warnings-watches-and-advisories/#NWS_Tornado_Warning for the latest Tornado, Severe Thunderstorm, and Flash Flood WARNINGS.

Wind gusts Monday afternoon 19 December
Flash Flood Risk Monday and Monday night 19 December
Likelihood of winter winter impacting RV travel Monday or Monday night 19 December
Wind gusts Tuesday afternoon 20 December
Wind chill values Tuesday evening 20 December
Flash Flood Risk Tuesday and Tuesday night 20 December
Likelihood of winter weather impacting RV travel Tuesday or Tuesday night 20 December
Likelihood of winter weather impacting RV travel Wednesday or Wednesday night 21 December
Total snowfall amounts through Wednesday night 21 December
Total precipitation amounts through Wednesday night 21 December
Wind chill values Thursday evening 22 December
Wind gusts Friday afternoon 23 December