Texas Flood Watches, Severe Storms, and Rockies Winter Weather

Flood Watches: Locally heavy rain from showers and thunderstorms may lead to flash flooding across central and south-central Texas including the Southern Edwards Plateau, Hill Country and the I-35 Corridor late tonight through late Thursday night.
Isolated severe thunderstorms are possible with wind and hail as the primary hazards and a brief tornado or two, affecting much of south, central, northern and northeast Texas, eastern, central and southern Oklahoma, southeast Kansas, southwest Missouri and western Arkansas late this afternoon into tonight.
Winter Weather Advisories: Snow today above 8000 feet in southwest and south-central Utah and through Thursday night above 8500 feet across parts of southwest and south-central Colorado and north-central New Mexico.

From the RV Weather Field Office in State College PA:

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:

— WA just east of Seattle, foothills and valleys of central King County: Wind Advisory later this morning through late this evening. Wind gusts 40-45 mph. I-90 impacted.

— Western OR; most of CA: Next Pacific storm brings rain to western OR, then to most of CA. Rain starts this evening across OR, and moves into southern CA by Thursday night. Rainfall amounts generally 1/2 inch or less except coastal southwest OR / northwest CA and the Los Angeles Basin. Rainfall in these locations may approach an inch. I-5, I-8, I-10, I-15, I-40, I-80, I-84, US-101 impacted.

— Southern OR Cascade Mountains; northern and northeast CA: Snow tonight above 6000 feet. Snow levels should remain above the major passes.

— Parts of northwest and north-central NV: Freezing Fog Advisory this morning. I-80, US-95 impacted.

— CA Sierra Nevada Mountains: Snow on Thursday. Snow levels 6500 feet in the morning, decreasing to 5500 feet by Thursday afternoon. 2-5 inches snow likely on Donner Pass (I-80). I-80, US-50 impacted.

— Central and southern CA San Joaquin Valley from Merced to Bakersfield: Dense Fog Advisories through mid to late morning. I-5, CA-33, CA-41, CA-43, CA-59, CA-99, CA-145, CA-152, CA-165, CA-180, CA-198 impacted.

Weather Impacts Mountain Time Zone:

— Northwest MT Rocky Mountain Front: Strong winds develop Thursday night and continue into Saturday. Wind gusts 40-55 mph. US-2, US-89 impacted.

— Much of northeast MT: Dense Fog Advisories this morning. US-2, US-191 impacted.

— Parts of southwest and south-central UT: Winter Weather Advisories continue continue through early evening. Additional snow totals of 6 to 9 inches above 8000 feet with locally higher amounts in excess of 12 inches at the highest elevations favored in southerly flow; 1 to 3 inches between 7000 feet and 8000 feet. Winter driving conditions are likely for all mountain routes above 8000 feet today. I-15, US-89 impacted.

— Parts of southwest and south-central CO; north-central NM above 8500 feet: Winter Weather Advisories through Thursday night. Total snow accumulations 3 to 8 inches. Snow accumulations near 10 inches likely across the highest peaks. US-64, US-84, US-160, US-550 impacted.

— Central AZ: Flood Watch through this afternoon. A slow moving storm system will continue to bring periods of rain and a few thunderstorms through this afternoon. Additional heavy rainfall will lead to a threat of flooding. Many areas will see additional rainfall totals of 1/2 to 1 inch by Thursday. I-40, US-93 impacted.

— Southeast AZ; much of central and southern NM: Rain showers and embedded thunderstorms develop tonight and continue into Thursday. Rainfall amounts of 1/2 to 1 inch will be common. I-10, I-19, I-25, I-40 impacted.

— Southeast NM: Isolated severe thunderstorms are possible late this afternoon into tonight. Wind gusts and hail are the primary hazards. US-60, US-62, US-70, US-82, US-84 potentially impacted.

Weather Impacts Central Time Zone:

— Southwest MN; northwest IA and adjacent northeast NE: Areas of fog occasionally reducing visibility to less than a mile will continue through mid-morning. Patchy drizzle is also possible. I-29, I-90, US-75 impacted.

— Much of WI north and east of I-90 and I-94: Dense Fog Advisories this morning. I-39, I-41, I-43, I-90, I-94, US-8, US-10, US-41, US-45, US-51, US-53, US-151 impacted.

— Southwest and south-central NE; much of western KS: Dense Fog Advisories this morning. I-70, I-80, US-6, US-34, US-36, US-50, US-56, US-83 impacted.

— Southeast MO; southern IL; western KY: Areas of fog and drizzle may lead to temporary reductions in visibilities early this morning. I-24, I-55, I-57, I-64, I-69, I-165, US-60 impacted.

— Central and south-central TX, including the Southern Edwards Plateau, Hill Country, and I-35 Corridor: Flood Watches late tonight through late Thursday night. Showers and thunderstorms will begin out west Wednesday night and move across the region Thursday exiting our eastern area Friday morning. Some storms will produce locally heavy rain leading to flash flooding. Rainfall amounts of 1-3 inches with isolated totals to 6 inches. I-10, I-35, I-37, US-83, US-87, US-90, US-183, US-190, US-277, US-281, US-290, US-377 impacted.

— Much of southwest, central and northern TX; OK; KS; central and southern MO; northern and western AR: Rain, with embedded thunderstorms develop tonight and continue through Friday morning. 1-3 inches if rainfall will be common. I-10, I-20, I-30, I-35, I-40, I-44, I-45, I-49, I-70 impacted.

— Much of south, central, northern and northeast TX; eastern, central and southern OK; southeast KS; southwest MO; western AR: Isolated severe thunderstorms are possible late this afternoon into tonight. While wind and hail will be the primary hazard, a brief tornado or two is possible across southern TX. I-10, I-20, I-27, I-30, I-35, I-40, I-44, I-45, I-49 potentially impacted.

— Southwest TX, south of the I-10/I-20 split: Strong winds Thursday. Wind gusts to 35 mph. US-67, US-90 impacted.

— South TX Coast vicinity McAllen: Strong winds Thursday afternoon. Wind gusts 30-35 mph. I-2, I-69E, I-169 impacted.

— Southeast and east-central LA; southern MS; southern AL; FL Panhandle: Dense Fog Advisories this morning. I-10, I-12, I-55, I-59, I-65, US-43, US-45, US-49, US-61, US-84, US-98 impacted.

Weather Impacts Eastern Time Zone:

— Central PA: A period of accumulating wet snow will occur during the early to mid morning hours today. The snow has ended to the west of I-99, and is focused early this morning across the Middle Susquehanna Valley and Western Poconos. Snow will likely stick on untreated roads and cause slushy driving conditions. Snow accumulations on colder, grassy surfaces will be 1 to 2 inches. I-80, I-81, US-11, US-15, US-22, US-220 impacted.

— Central and southwest OH; southeast and southern IN; KY: Areas of low clouds with fog and drizzle may lead to temporary reductions in visibilities on roadways this morning. I-64, I-65, I-69, I-70, I-71, I-74, I-75 impacted.

— Northeast FL; southwest GA; FL Panhandle: Dense Fog Advisories this morning. I-10, I-95, US-1, US-17, US-23, US-27, US-82, US-84, US-98 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.