- Excessive heat through this weekend over much of the southern Plains, Desert Southwest, and central California.
- Severe thunderstorms are possible this weekend over portions of the central and northern Plains.
- Strong winds return to the much of the West on Sunday.
- Some snow for the northern Rockies above 5000 feet late Monday and Tuesday, including Glacier National Park.
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Pacific:
— South-central and southeast WA; northeast OR: Flood Watches through Sunday for excessive rainfall. I-82, I-84, I-90 potentially impacted.
— Eastern CA along and east of the Sierra Nevada Mountains; all of NV: Wind Advisories late Sunday morning through Sunday evening. Gusts 50-55 mph. I-15, I-40, I-80, US-50, US-395, CA-58 impacted.
— Northern CA Sacramento Valley, the Delta, and northern San Joaquin Valley: Excessive Heat Warnings today. Forecast high temperatures 100 – 106 deg F. I-5, I-80, CA-99 impacted.
— Southern Central CA interior valleys, including southern Salinas Valley, Antelope Valley, and interior San Luis Obispo County Valleys: Excessive Heat Warning today. Temperatures up to 107 deg F. US-101 impacted.
— Interior southern and southeast CA; southern NV: Excessive Heat Warnings today. Forecast high temperatures ranging from near 110 deg F in Las Vegas to around 120 deg F in Death Valley. I-8, I-10, I-15, I-40, CA-58 impacted.
Mountain:
— Much of northern ID and western ID north of I-84; adjacent northwest MT: Flood Watches late tonight through Monday for excessive rainfall. I-90 potentially impacted.
— Portions of northwest MT, including Glacier NP: Winter Storm Watch Monday evening through late Tuesday night above 5000 feet. Snow accumulations will range from a few inches at 5000 feet to potentially up to 2 feet of snow above 7000 feet.
— Southeast MT: Widely scattered severe thunderstorm possible this evening. Damaging winds and large hail are the primary threats. Area at greatest risk is east of I-25, south of I-94 and north of I-90.
— Southeast MT and northeast WY: Widely scattered severe thunderstorm possible Sunday. Damaging winds and large hail are the primary threats. I-90 potentially impacted.
— Portions of southeast ID: Wind Advisory this afternoon. Gusts to 45 mph. I-15 impacted.
— Southern and western WY: Winds will gust 30-40 mph this afternoon. I-80 impacted.
— Western and central WY: Winds will likely gust 35-50 mph Sunday afternoon. Strongest winds in the Wind River Range. I-80 impacted.
— Northern AZ; southern, southeast and east-central UT; southwest CO; northeast NM: Winds may gust 40-50 mph Sunday afternoon. Advisories possible. I-15, I-25, I-40, I-70 impacted.
— Northwest and west-central AZ: Wind Advisory Sunday afternoon. Gusts 40-50 mph. I-40 impacted.
— Western, central and much of southern AZ: Excessive Heat Warnings today and Sunday. Forecast high temperatures of 105 -116 deg F expected. I-10, I-17, I-40 impacted.
— Southeast NM: Excessive Heat Warning this afternoon. Temperatures could reach 112 deg F.
Central:
— Northwest and central SD: Widely scattered severe thunderstorm possible this evening. Damaging winds and large hail are the primary threats. I-90 potentially impacted.
— Central and western SD; central and western NE; northwest KS: Widely scattered severe thunderstorm possible Sunday. Damaging winds and large hail are the primary threats. I-70, I-80, I-90 potentially impacted.
— Southwest IA; southeast NE; eastern KS; western MO: A few clusters of strong to severe thunderstorms may develop this afternoon and into tonight. While damaging winds and hail are the most likely threats, an isolated tornado is possible too. I-29, I-35, I-70, I-80 potentially impacted.
— Much of southern WI: Dense Fog Advisory through late this morning. I-90 impacted.
— Much of central and northern MS: Dense Fog Advisory through mid-morning. I-20, I-55, I-59 impacted.
Eastern:
— No significant weather impacts to RV travel expected today or Sunday.
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/#NWS_Tornado_Warning for the latest Tornado, Severe Thunderstorm, and Flash Flood WARNINGS.
— See https://rvweather.com/warnings-watches-and-advisories/#NHC_Hurricane_Advisory for the latest Tropical system WARNINGS and information.
Severe thunderstorm threat Saturday and Saturday night 11 June Wind gusts Sunday afternoon 12 June 24 hour rainfall amounts Sunday morning through Monday morning 12-13 June
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