- Isolated to scattered severe thunderstorms possible across parts of the northern High Plains into the Upper Mississippi Valley this afternoon and evening.
- Heat impacts much of the Plains today; excessive heat warnings Monday across the Desert Southwest.
- Watching the central Gulf Coast later this week for possible tropical weather development.
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Pacific:
— Southeast CA deserts: Excessive Heat Warning Monday afternoon and evening. Temperatures 110-117 deg F. I-8, I-10 impacted.
Mountain:
— Southeast and south-central AZ: Excessive Heat Warning Monday afternoon and evening. Temperatures 110-114 deg F. I-8, I-10, I-17 impacted.
— Southern and western WY: Strong winds gusting to 30 mph this afternoon. I-80 impacted.
— Northeast WY and adjacent southeast MT and western SD: Isolated to scattered severe thunderstorms possible this afternoon and evening. Damaging winds and large hail are the main threats. I-90 potentially impacted.
Central:
— Much of central and eastern SD: Severe Thunderstorm Watch through mid-morning. Ping-pong ball-sized hail and wind gusts to 85 mph possible. I-29, I-94 potentially impacted.
— Central and eastern ND; central and northern MN; northwest WI: Isolated to scattered severe thunderstorms possible this afternoon and evening. Damaging winds and large hail are the main threats. I-29, I-35, I-94 potentially impacted.
— Central NE: Excessive Heat Warnings this afternoon and evening. Heat index values may reach 106 deg F. I-80 impacted.
— East-central TX along the I-35 corridor: Excessive Heat Warnings through this evening. Heat index values may reach 112 deg F. I-10, I-20, I-30, I-35, I-45 impacted.
— Southeast IA; northeast MO; northern and central IL: Some severe thunderstorms possible Monday. Damaging winds will be the primary threat. I-39, I-55, I-57, I-72, I-74, I-80, I-88 potentially impacted.
Eastern:
— SC central and southern coastal regions: Flood Watch this afternoon and tonight for excessive rainfall. I-26, I-95 impacted.
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.
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Some useful links:
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(For serious weather geeks!) National Weather Service Mesoscale Outlooks
General National Weather Service info
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