Moderate

At 537 PM EDT, Doppler radar was tracking a strong thunderstorm capable of producing a landspout near Archer, or 7 miles north of Williston, moving north at 30 mph. HAZARD...Landspouts and wind gusts of 45 to 55 mph. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Gainesville, Rainbow Lakes Estates, Worthington Spring, Alachua, High

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...A portion of south central Arizona. * WHEN...From 8 AM to 5 PM MST Sunday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. A Wind Advisory means that sustained wind speeds of between 30 and 40 mph are expected, or wind gusts of between 40 and 58 mph. Winds this strong can make driving difficult, especially for high profile vehicles.

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...In Arizona, Central La Paz, Gila River Valley, Kofa, Parker Valley, and Southeast Yuma County. In California, Chuckwalla Mountains, Chuckwalla Valley, Imperial County Southeast, and Palo Verde Valley. * WHEN...From 2 AM MST /2 AM PDT/ to 5 PM MST /5 PM PDT/ Sunday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne.

* WHAT...For the Extreme Heat Warning, dangerously hot conditions. Afternoon temperatures 103 to 105. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. For the Wind Advisory, south winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Yuma. * WHEN...For the Extreme Heat Warning, until 8 PM MST this evening. For the Wind Advisory, from 2 AM to 5 PM MST Sunday. * IMPACTS...Difficult driving conditions, especially for larger

* WHAT...For the Extreme Heat Warning, dangerously hot conditions. Afternoon temperatures 104 to 109. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. For the Wind Advisory, south winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Imperial County West and Imperial Valley. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Wind Advisory, from 2 AM to 5 PM PDT Sunday.

* WHAT...South winds 25 to 35 mph with gusts up to 45 to 55 mph expected. * WHERE...Imperial County Southwest, Salton Sea, Chiriaco Summit, Joshua Tree NP East, and Joshua Tree NP West. * WHEN...From 2 AM to 5 PM PDT Sunday. * IMPACTS...Difficult driving conditions, especially for larger vehicles traveling along roads with crosswinds. Light, unsecured objects may become airborne. A Wind Advisory means that sustained wind speeds of between 30 and 40

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph. * WHERE...In California, Mono County. In Nevada, Mineral and Southern Lyon Counties. * WHEN...From 11 AM to 11 PM PDT Saturday. * IMPACTS...Gusty winds and rough waves on area lakes will create hazardous conditions for small craft. Check lake conditions before heading out and be prepared for a sudden increase in winds and wave heights. Consider postponing boating activities on the lake until a day with less wind.

* WHAT...Southwest winds 15 to 25 mph with gusts up to 40 mph. Waves 2 to 3 feet on Lake Tahoe and Pyramid Lake. * WHERE...Greater Lake Tahoe Area, Greater Reno-Carson City-Minden Area, and Western Nevada Basin and Range including Pyramid Lake. * WHEN...From 5 AM to 11 PM PDT Saturday. * IMPACTS...Gusty winds and rough waves on area lakes will create hazardous conditions for small craft. Check lake conditions before heading out and be prepared for a sudden increase in winds and wave heights. Consider postponing boating

* WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...All of central and northern Arizona, including Apache, Navajo, Coconino, Yavapai and northern Gila counties. * WHEN...From 8 AM MST /9 AM MDT/ to 8 PM MST /9 PM MDT/ Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could snap resulting in a few power outages. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A strong upper-level trough along with the

* WHAT...For the Hazardous Seas Warning, very steep and hazardous seas 9 to 12 ft at 10 seconds and northwest winds 15 to 25 kt expected. For the Small Craft Advisory, seas 10 to 12 ft at 10 seconds and northwest winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE...Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM. * WHEN...Hazardous Seas Warning, until 5 AM PDT Saturday. Small Craft Advisory, from 5 AM to 2 PM PDT Saturday.