Expected

...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ... WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY... The upper level low offshore will shift to the east just enough to allow for monsoonal moisture to move into the region. Instability will accompany the moisture and allow for increased chances of isolated to scattered thunderstorms across the eastern mountains. Brief heavy downpours, gusty outflow winds in excess of 45 mph, small hail, and frequent lightning will be possible. A

...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ... WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY... The upper level low offshore will shift to the east just enough to allow for monsoonal moisture to move into the region. Instability will accompany the moisture and allow for increased chances of isolated to scattered thunderstorms across the eastern mountains. Brief heavy downpours, gusty outflow winds in excess of 45 mph, small hail, and frequent lightning will be possible. A

...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ... WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY... The upper level low offshore will shift to the east just enough to allow for monsoonal moisture to move into the region. Instability will accompany the moisture and allow for increased chances of isolated to scattered thunderstorms across the eastern mountains. Brief heavy downpours, gusty outflow winds in excess of 45 mph, small hail, and frequent lightning will be possible. A

...HIGH ABUNDANT LIGHTNING RISK WITH THUNDERSTORMS TODAY... ... WINDY AND BREEZY WITH CRITICAL RH FRIDAY AND SATURDAY... The upper level low offshore will shift to the east just enough to allow for monsoonal moisture to move into the region. Instability will accompany the moisture and allow for increased chances of isolated to scattered thunderstorms across the eastern mountains. Brief heavy downpours, gusty outflow winds in excess of 45 mph, small hail, and frequent lightning will be possible. A

* WHAT...Dangerously hot conditions with temperatures of 105 to 112 degrees expected with Major HeatRisk. * WHERE...Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, and Western Pima County. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Warm overnight low temperatures of 82 to 88 degrees will provide little to no relief from heat overnight.

* WHAT...Dangerously hot conditions with temperatures of 100 to 105 expected with Major HeatRisk. * WHERE...Eastern Cochise County below 5000 feet, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. * WHEN...From 10 AM Friday to 8 PM MST Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

* WHAT...Dangerously hot conditions with high temperatures between 108 to 112 degrees. * WHERE...Indian Wells Valley and Mojave Desert. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Texas... Nueces River Near Three Rivers affecting Live Oak County. For the Nueces River...including Three Rivers...Major flooding is forecast. * WHAT...Major flooding is forecast. * WHERE...Nueces River near Three Rivers. * WHEN...From Monday evening until further notice. * IMPACTS...At 35.0 feet, Major lowland flooding occurs. Flow backs up minor creeks to the slabs of lowest homes in the River Creek

* WHAT...Dangerously hot conditions with heat index values up to 107 expected. * WHERE...A portion of northeast Montana. * WHEN...From 10 AM Friday to 10 PM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...For the first Heat Advisory through Saturday morning, temperatures up to 101 F. For the Extreme Heat Warning Saturday afternoon and evening, dangerously hot conditions with temperatures up to 108 F. For the second Heat Advisory Saturday night into Sunday, temperatures up to 101 F. * WHERE...Bears Paw Mountains and Southern Blaine, Cascade County below 5000ft, Fergus County below 4500ft, Hill County, Judith Basin County and Judith Gap, Northern Blaine County, and Western and Central Chouteau County.