Severe Weather Alerts: Thunderstorms, Winds, and Snow Risks

Much of Oklahoma and Kansas into Missouri, with parts of Texas: Numerous severe thunderstorms are expected today into tonight. Damaging winds and hail are the main concerns, with a tornado risk also possible.
Southern Oregon into northern California and the Sierra Nevada: Winter storm impacts through Thursday with heavy mountain snow, strong winds, and periods of poor visibility. Strong winds for southern California.
Southern Minnesota into western and northwestern Wisconsin: Winter Storm and Ice Storm Warnings Thursday and Friday.

From the RV Mobile Command Center in Brunswick GA:

Here are the relevant National Weather Service Warnings, Watches and Advisories that will impact RV and Road travel over the next several days.

Scroll down to the always-updating graphics immediately below this forecast for the latest information and for weather impacts that do not meet NWS Alert criteria.

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Weather Impacts Pacific Time Zone:

— Washington and northern Oregon mountain routes, including Snoqualmie Pass on I-90 and higher stretches of I-5: Winter Weather Advisory beginning this morning through Thursday evening with snow totals generally 4 to 11 inches. Slick roads and slower travel are likely over the higher passes. I-5, I-90, US-2, US-20, US-26, US-97 impacted.

— Southern Oregon passes including Siskiyou Summit on I-5; northeast California: Winter Storm Warning beginning this morning through Thursday evening with heavy snow and storm totals around 9 to 18 inches. Dangerous winter travel with snow-covered passes and periods of poor visibility. Snow levels 5500 feet today, decreasing to 2500 feet tonight. 1-3 inches snow expected on Siskiyou Pass. I-5, US-20, US-26, US-97, US-395 impacted.

— Northern California and the Sierra Nevada, including Donner Pass: Winter Weather Advisory through midday Thursday, and beginning late tonight in northern California, with snow totals generally 4 to 12 inches and locally up to 14 inches on higher terrain, plus gusts 40 to 55 mph in exposed areas. Slick roads, snow-covered passes, and slower travel are likely. I-5 and I-80, US-395, CA-3, CA-139, CA-299 impacted.

— Much of the high Sierra Nevada, including Donner Pass, and adjacent west-central Nevada: High Wind Warning beginning early evening through Thursday afternoon with sustained winds 20 to 30 mph and gusts up to 50-70 mph. I-80, US-50, US-395 impacted.

— Northern and central California into south-central Oregon and western Nevada: Wind Advisory beginning late this morning and lasting into Friday afternoon with winds 20 to 35 mph and gusts 45 to 50 mph. Difficult travel for high-profile vehicles on exposed stretches and near the Sierra front. I-5 and I-80, US-50, US-93, US-95, US-395 impacted.

— Southern California Mojave Desert Slopes: High Wind Warning beginning midday today through midday Friday with winds 25 to 35 mph and gusts to 60 mph. US-395, CA-14, CA-58 impacted.

— Southern California deserts and passes including San Gorgonio Pass on I-10 and Cajon Pass on I-15: Wind Advisory through this morning through Friday morning, with winds generally 25 to 35 mph and gusts 50 to 55 mph. Difficult travel for high-profile vehicles in the passes and desert approaches. I-10, I-15, I-40, I-8, and I-5 impacted.

Weather Impacts Mountain Time Zone:

— Southern Idaho on I-84: Wind Advisory beginning Thursday afternoon through Thursday evening with winds 25 to 30 mph and gusts up to 45 mph. Difficult travel for high-profile vehicles is possible on exposed sections. I-84 impacted.

— Central Idaho, southwest and central Montana, including I-15, Bozeman Pass and Pipestone Pass on I-90, and I-94: Winter Storm Watch beginning Thursday morning and extending into early Saturday, with accumulating snow and gusts 35 to 45 mph in some areas. Travel may deteriorate quickly late in the week with snow-covered passes and reduced visibility. I-15, I-90, and I-94 impacted.

— Southwest Montana, including I-15 and Pipestone Pass on I-90: Winter Storm Warning beginning Thursday morning through Friday afternoon with snow totals of 7 to 11 inches. Dangerous winter travel with snow-covered passes and reduced visibility is likely. I-15 and I-90 impacted.

— Wyoming mountain and high-plains routes, including Togwotee Pass on US-26/287: Winter Storm Watch beginning Thursday morning through Saturday morning. Late-week snow and blowing snow may create hazardous mountain and high-plains travel. US-14, US-16, US-26, US-287 impacted.

— Southeast Wyoming, including Sherman Summit on I-80 and I-25: High Wind Watch beginning Thursday morning and continuing into Friday night with winds 30 to 50 mph and gusts up to 65 to 75 mph. Hazardous crosswinds for high-profile vehicles are likely on exposed ridges and open stretches. I-25 and I-80 impacted.

— Near the Wyoming–South Dakota line on I-90: Freezing rain early this morning may create brief slick spots. Travel could become hazardous on untreated bridges and elevated surfaces. I-90 impacted.

— Utah passes and the Colorado high country, including Beaver Ridge Summit on I-15, Parleys Summit on I-80, I-84 in Utah, Vail Pass on I-70, and adjacent stretches of I-25, I-76, and I-80 in Colorado: Winter Weather Advisory through late tonight with snow totals generally 3 to 12 inches. Slick roads, chain-type conditions, and slower mountain travel are likely. I-15, I-70, I-80, and I-84 impacted.

— Northern Arizona and central New Mexico, including Flagstaff Summit on I-40, Glorieta Pass on I-25, Tijeras Pass on I-40, and I-10 in southern New Mexico: Wind Advisory beginning around midday and lasting through late evening, with winds mostly 20 to 35 mph and gusts up to 50 to 55 mph. Difficult travel for high-profile vehicles is likely in the passes and along exposed desert corridors. I-10, I-17, I-25, I-40, and US-64 impacted.

— Far southeastern New Mexico into west Texas: High Wind Warning beginning this afternoon through Thursday morning with winds 35 to 45 mph and gusts up to 65 mph. Hazardous crosswinds for high-profile vehicles and difficult travel on open east-west routes. I-10, US-62, US-70 impacted.

Weather Impacts Central Time Zone:

— North Dakota, eastern South Dakota, southern Minnesota, and western Wisconsin: Winter Weather Advisory through Thursday evening with snow totals generally 2 to 7 inches and ice up to one quarter inch. Slick roads and slower travel are likely as mixed precipitation spreads across the region. I-29, I-35, I-90, and I-94 impacted.

— Southern Minnesota into western and northwestern Wisconsin, including I-35 and I-94: Winter Storm Warning beginning Thursday morning and continuing into Friday morning with heavy mixed precipitation, including 7 to 10 inches of snow and sleet in the far northeast, a light glaze to significant icing in parts of Wisconsin, and gusts up to 45 mph in the Arrowhead. Dangerous winter travel is likely where heavier snow, sleet, and icing overlap. I-35 and I-94 impacted.

— Central and eastern Wisconsin: Ice Storm Warning beginning Thursday morning through Thursday afternoon with ice accumulations of two tenths to four tenths of an inch. Dangerous icing may create very slippery roads and slower travel. I-39 impacted.

— Iowa, Illinois, Missouri: Scattered severe thunderstorms are expected Thursday into Thursday night. Damaging winds and hail are most likely, with some tornado risk possible. I-35, I-39, I-43, I-44, I-55, I-57, I-70, I-72, I-74, I-80, I-88, I-90, I-96 potentially impacted.

— The Kansas City area: Flood Advisory through this morning for urban and small-stream flooding. Water over roads and flooded low spots may slow travel. I-29, I-35, and I-70 impacted.

— Central and eastern Kansas into central and western Missouri, with parts of central and northern Oklahoma: Flash flooding is possible today into tonight. Heavy rain may lead to water over roads and flooded low spots, especially on lower-lying routes. I-29, I-35, I-44, and I-70 impacted.

— Much of Oklahoma and Kansas into Missouri, with parts of Texas: Numerous severe thunderstorms are expected today into tonight. Damaging winds and hail are the main concerns, with a tornado risk also possible. I-10, I-20, I-29, I-30, I-35, I-40, I-44, I-45, I-70, and I-72 potentially impacted.

— The Texas and Oklahoma Panhandles: Red Flag Warning beginning around midday through late evening, alongside a Wind Advisory. Winds generally 20 to 35 mph and gusts up to 50 mph. I-27 and I-40 impacted.

— Oklahoma into Missouri,Iowa and Wisconsin, with parts of Texas and eastern Kansas: Numerous severe thunderstorms are expected Friday into Friday night. Damaging winds, hail, and some tornado risk may create fast-changing travel conditions across a broad region. I-10, I-20, I-29, I-30, I-35, I-40, I-44, I-55, I-57, I-64, I-65, I-69, I-70, I-72, I-74, I-75, I-80, I-88, I-90, and I-94 potentially impacted.

— Central and eastern Oklahoma, parts of north Texas, central and southern Kansas, and central and southern Missouri: Flash flooding is possible Friday into Friday night. Heavy rain may lead to water over roads and flooded low spots, especially on lower-lying routes and urban approaches. I-20, I-30, I-35, I-40, I-44, and I-45 impacted.

— The Florida Panhandle into southeast Alabama: Dense Fog Advisory through late morning with visibility down to one quarter mile or less. Low visibility could make driving conditions hazardous. I-10 impacted.

Weather Impacts Eastern Time Zone:

— Northern Michigan: Winter Storm Watch beginning Thursday morning through Thursday evening with ice accumulations of one tenth to one quarter inch. Icy travel may develop on untreated roads and ramps. I-75, US-2, US-41 impacted.

— Central and southern Michigan and central and northern Indiana: Scattered severe thunderstorms are expected Thursday into Thursday night. Damaging winds and hail are most likely, with some tornado risk possible. I-65, I-69, I-70, I-74, I-80, I-88, I-90, I-94, and I-96 potentially impacted.

— Upstate and western New York: Flood Warning through Thursday, Friday, and in a few spots into Saturday morning for ongoing river and creek flooding. Water over roads and flooded low spots may affect travel near low-lying crossings and flood-prone approaches. I-81, I-86, and I-90 impacted.

— Central and western New York: Flood Watch through late evening for lingering runoff and high water after heavy rain and snowmelt. Additional road flooding is possible in low-lying and flood-prone areas. I-81, I-86, I-88, and I-90 impacted.

— Ohio into adjacent western Pennsylvania and northern West Virginia, with additional flooding concerns in northern Indiana and lower Michigan: Flood Warning through today, Thursday and Friday for excessive-rainfall and river flooding. Water over roads and flooded low spots may affect travel on secondary roads near the major corridors. I-69, I-70, I-71, I-75, I-76, I-77, I-79, I-80, and I-90 impacted.

— Northern Maine: Winter Weather Advisory through late morning with light additional snow and sleet plus a light glaze of ice. Slick roads and slower travel are likely. I-95 impacted.

— Much of West Virginia, Maryland, Delaware, southern New Jersey, central and southern Ohio and Pennsylvania, and Virginia: A few severe thunderstorms are possible today into tonight. Strong wind gusts are the main concern, with hail or an isolated tornado possible; travel may be disrupted by stronger storms crossing major routes. I-64, I-68, I-70, I-71, I-75, I-76, I-77, I-79, I-81, I-95, and I-99 potentially impacted.

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Looking for real-time road conditions? Here’s a link, courtesy of the Federal Highway Administration, to all the individual State 511 websites.