Severe

* WHAT...Dangerously hot conditions with heat index values up to 114. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...Until 9 PM CDT this evening. * 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. To reduce risk during outdoor work, the Occupational Safety and

The Flood Watch will expire for portions of central, south central, southwest, and west central Minnesota, including the following areas, in central Minnesota, Kandiyohi, McLeod, Meeker, Renville and Sibley. In south central Minnesota, Brown, Le Sueur and Nicollet. In southwest Minnesota, Redwood. In west central Minnesota, Chippewa, Lac Qui Parle, Swift and Yellow Medicine. The flash flooding threat has ended. Therefore, the Flood Watch will expire at noon CDT today.

* WHAT...Dangerously hot conditions with temperatures up to 105 expected. Warm overnight lows in the low to mid 70s will offer little relief. * WHERE...Northern Wasatch Front, Salt Lake Valley, Tooele and Rush Valleys, and Utah Valley. * WHEN...From noon Saturday to 9 PM MDT Sunday. * 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.

* WHAT...Dangerously hot conditions with temperatures up to 105 on Friday, up to 108 on Saturday, and up to 110 on Sunday. Warm overnight lows in the upper 60s to mid 70s will offer little relief. * WHERE...Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Western Canyonlands, Lower Washington County, and Zion National Park. * WHEN...Until 9 PM MDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of south central New Mexico, including all of Otero County and extreme eastern Sierra and Dona Ana Counties and in southwest Texas, including the following areas, El Paso County and western Hudspeth County * WHEN...From Saturday afternoon through Saturday evening. * IMPACTS...Excessive runoff may result in flooding of creeks, arroyos, dry washes and other low-lying and flood-prone locations. Low-water crossings may be flooded.

The National Weather Service in Riverton has issued a Fire Weather Watch, which is in effect from Sunday afternoon through Monday evening. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Wind Shift with a Cold Front could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater...Uinta.

The National Weather Service in Riverton has issued a Fire Weather Watch, which is in effect from Sunday afternoon through Sunday evening. * IMPACTS: Low Humidities...Unseasonably Warm Temperatures...and Wind Shift with a Cold Front could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...283...285. In North Central WY Fire Zones...275...276...282. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Big Horn...Hot Springs...Johnson...Park Washakie.

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG IN EFFECT 2PM UNTIL 8PM SATURDAY FOR THE FOLLOWING AREAS: OKANOGAN VALLEY (ZONE 703) - COLVILLE RESERVATION (ZONE 702) - WATERVILLE PLATEAU (ZONE 706) - WESTERN COLUMBIA BASIN (ZONE 707) - EASTERN COLUMBIA BASIN (ZONE 708) AND LOWER PALOUSE AND SNAKE RIVER (ZONE 709). WIND GUSTS OF 40 TO 50 MPH COMBINED WITH HUMIDITY LEVELS OF 15 TO 20 PERCENT WILL CREATE EXTREME FIRE WEATHER CONDITIONS... A strong cold front will sweep across the Inland Northwest this