- The first tropical system of the Atlantic hurricane season is forecast to affect South Florida and associated coastal waters on Friday and into the weekend. Heavy rainfall with the potential for flooding will exist.
- Chance of severe thunderstorms this afternoon and evening for portions of the western central and southern Plains.
- Heavy rainfall for the Pacific Northwest may cause some flooding over northeast OR today.
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Pacific:
— North-central and northeast OR, and adjacent southeast WA: Flood Watch late this morning and this evening due to heavy rain and excessive runoff. I-84 potentially impacted.
— Southern CA western Mojave Desert: Wind Advisory Saturday afternoon and Saturday night. Gusts to 45 mph. I-15, I-40, CA-58 impacted.
— Southern and southeastern NV and adjacent northwest AZ: Wind gusts 30-35 mph both today and Saturday. I-15, I-40 impacted.
Mountain:
— Portions of southwest and south-central CO: Wind gusts this afternoon and evening 30-35 mph.
— Extreme southeast WY and southwest NE; eastern CO along and to the east of I-25; eastern NM; western OK Panhandle; parts of western TX including the western TX Panhandle: Widely scattered severe thunderstorms possible this afternoon and evening. Severe wind gusts and some hail are the most likely threats. I-20, I-27, I-40, I-70, I-76, I-80 potentially impacted.
Central:
— Extreme southeast WY and southwest NE; eastern CO along and to the east of I-25; eastern NM; western OK Panhandle; parts of western TX including the western TX Panhandle: Widely scattered severe thunderstorms possible this afternoon and evening. Severe wind gusts and some hail are the most likely threats. I-20, I-27, I-40, I-70, I-76, I-80 potentially impacted.
Eastern:
— Central and southern FL: Tropical Storm Warnings for coastal areas this afternoon through Saturday. Potential Tropical Cyclone One continues to slowly organize. It will likely become Tropical Storm Alex sometime later today or tonight. Regardless of its name, the most significant and most likely impacts from this system are strong winds gusting 40-55 mph over the bridges to Key West, and very heavy rainfall starting this afternoon and continuing through midday Saturday. Rainfall amounts over south FL and the Keys could reach 6-10 inches and produce significant flash flooding. Also expect strong gusty winds along the Atlantic coast of southern FL late tonight and Saturday. Expect a storm surge of 1-2 feet along the southwest FL coast, from south of Tampa Bay to the Keys. Please follow any directions and guidance given by your local Emergency Managers. I-4, I-75, I-95, US-1 impacted.
— Coastal central and southern ME: Dense Fog Advisories through mid-morning. I-95 impacted.
Tropical and Severe Weather 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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