Travel & RV Weather Forecast Sunday 18 December

Lake effect snows in western New York through Monday.
Heavy rains Monday and Tuesday for the northern Gulf Coast and Florida, respectively.
Major winter storm will impact the central and eastern U.S. starting mid-week, with snow, high winds and very cold temperatures.

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Pacific:

— WA far northern Puget Sound: Winter Weather Advisory through this afternoon. An additional inch of snow possible. I-5 impacted.

— West-central WA: Winter Weather Advisory for the Cascades through this evening. 3-9 inches of additional snowfall are possible. I-90 impacted.

— East-central, northeast WA; northern ID: Winter Weather Advisories through Monday morning. 1-4 inches of snow; freezing drizzle also possible. I-90 impacted.

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

— Northeast NV: Freezing Fog Advisory through midday today. I-80 impacted.

Mountain:

— Northwest MT: Winter Weather Advisory through midday Monday. Additional snow accumulations 3-6 inches. I-90 impacted.

— Southwest MT: Winter Weather Advisory through midday today for areas of blowing snow. I-15 impacted.

— Portions of northeast and north-central MT: Winter Weather Advisory through midday today. An inch of new snow expected. US-2 impacted.

— Southeast WY: High Wind Warnings and Watches this morning and again late tonight through Monday afternoon. Gusts 60-65 mph. I-25, I-80 impacted.

— Much of western and northwest WY: Strong winds Monday afternoon. Gusts 40-55 mph.

Central:

— West-central SD: Freezing Fog Advisory through midday today. I-90 impacted.

— Much of ND, SD and north-central NE: Wind Chill Watch late Monday night through Friday. Wind chill values as low as -50 deg F. I-29, I-90, I-94 to be impacted.

— Eastern TX; central and northern LA: Heavy rains Monday and Monday night, with a possibility of isolated flash flooding. I-20, I-49 potentially impacted.

Eastern:

— Portions of MI north-central Upper Peninsula and southwest Lower Peninsula: Winter Weather Advisories through early this afternoon. An inch or two additional accumulation. Wind gusts to 35 mph. I-94, I-196, US-31 impacted.

—MI northwest Lower Peninsula: Winter Weather Advisories through tonight. 2-6 inches lake effect snow. I-75 impacted.

— Northwest PA and southwest NY downwind of Lake Erie: Lake Effect Snow Warnings through midday Monday. Additional accumulations up to 9-18 inches. Wind gusts to 35 mph. I-90, NY Thruway impacted.

— Western and north-central NY downwind of Lake Ontario: Lake Effect Snow Warning and Winter Weather Advisories through Monday evening. Up to 2-3 feet of lake effect snow in the usual favored locations. 3-5 inches snow expected along the Thruway. I-81, I-90, NY Thruway impacted.

— Northern ME: Winter Storm Warnings continue through Monday afternoon. Additional snow accumulations of 6-12 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 Sunday afternoon 18 December
Likelihood of winter weather impacting RV travel Sunday or Sunday night 18 December
Wind gusts Monday afternoon 19 December
Likelihood of winter weather impacting RV travel Monday or Monday night 19 December
Likelihood of winter weather impacting RV travel Tuesday or Tuesday night 20 December
Total snow accumulations through Tuesday night 20 December
Total precipitation amounts through Tuesday night 20 December