* WHAT...High temperatures of 95 to 105 degrees and lows of 55 to 65
are expected.
* WHERE...Josephine and Jackson counties and eastern Curry County.
This includes the entire Rogue Valley and the cities of Medford,
Grants Pass, Cave Junction, and Butte Falls.
* WHEN...Until 9 PM PDT Saturday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Area rivers will be cold and can cause shock
to swimmers.
* WHAT...High temperatures of 95 to 102 degrees with lows in the mid
to upper 50s expected.
* WHERE...In California, Modoc County and eastern Siskiyou County.
This includes the cities and communities of Macdoel, Tulelake,
Pondosa, Bray, Tennant, Dorris, Tionesta, Alturas, and Adin. In
Oregon, Klamath and Lake counties. This includes the cities of
Klamath Falls, Chemult, Summer Lake, Chiloquin, Malin, Keno,
Sprague River, and Lakeview.
* WHEN...Until 9 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat illnesses. Area rivers
will be cold and can cause shock to swimmers.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures up to 105. For the Heat Advisory,
temperatures up to 101 expected.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur
County.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Heat Advisory, from midnight
MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/
Sunday night.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures up to 101. For the Heat Advisory,
temperatures up to 99 expected.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM
PDT Sunday.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
* WHAT...Dangerously hot conditions through Saturday, especially
across lower elevations.
* WHERE...In Idaho, Lower Treasure Valley ID. In Oregon, Oregon
Lower Treasure Valley.
* WHEN...Until midnight MDT Sunday night.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures up to 105. For the Heat Advisory,
temperatures up to 101 expected.
* WHERE...In Idaho, Upper Weiser River. In Oregon, Malheur
County.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Heat Advisory, from midnight
MDT /11 PM PDT/ Saturday night to midnight MDT /11 PM PDT/
Sunday night.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with temperatures up to 101. For the Heat Advisory,
temperatures up to 99 expected.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Heat Advisory, from 11 PM Saturday to 11 PM
PDT Sunday.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
* WHAT...Hot conditions through Saturday, especially across lower
elevations.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...Until midnight MDT /11 PM PDT/ Saturday night.
* IMPACTS...Extreme heat will significantly increase the potential
for heat related illnesses, particularly for those working or
participating in outdoor activities.
...Potential for abundant lightning this weekend...
The National Weather Service in Boise has issued a Fire Weather
Watch for lightning, which is in effect from Saturday afternoon
through Sunday evening.
* Thunderstorms...Scattered storms with little to no
precipitation and abundant lightning are possible Saturday and
Sunday.
* Outflow Winds...Up to 50 MPH possible.
* Timing...From Saturday afternoon through Sunday evening.
* IMPACTS...any fires that develop will likely spread rapidly.
Outdoor burning is banned during fire season.
* AFFECTED AREA...For southern portions of the Fremont-Winema
National Forest in Oregon fire zone 624 and northern portions
of the Modoc National Forest in California fire zone 285.
* WIND...Southwest 15 to 20 mph gusting 25 to 35 mph.
* HUMIDITY...8 to 12 percent.
* DETAILED URL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions through Saturday. For the Excessive Heat Watch,
dangerously hot conditions are possible.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Excessive Heat Watch, from Saturday evening
through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Heat Advisory, hot conditions through Saturday,
especially across lower elevations. For the Excessive Heat
Watch, dangerously hot conditions are possible.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...For the Heat Advisory, until midnight MDT /11 PM PDT/
Saturday night. For the Excessive Heat Watch, from late
Saturday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions through Saturday, especially across lower elevations.
For the Excessive Heat Watch, dangerously hot conditions are
possible.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Excessive Heat Watch, from
late Saturday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions through Saturday. For the Excessive Heat Watch,
dangerously hot conditions are possible.
* WHERE...Baker County.
* WHEN...For the Excessive Heat Warning, until 11 PM PDT
Saturday. For the Excessive Heat Watch, from Saturday evening
through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Heat Advisory, hot conditions through Saturday,
especially across lower elevations. For the Excessive Heat
Watch, dangerously hot conditions are possible.
* WHERE...Portions of south central and southwest Idaho and
southeast Oregon.
* WHEN...For the Heat Advisory, until midnight MDT /11 PM PDT/
Saturday night. For the Excessive Heat Watch, from late
Saturday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
* WHAT...For the Excessive Heat Warning, dangerously hot
conditions through Saturday, especially across lower elevations.
For the Excessive Heat Watch, dangerously hot conditions are
possible.
* WHERE...Portions of southwest and west central Idaho and
southeast Oregon.
* WHEN...For the Excessive Heat Warning, until midnight MDT /11
PM PDT/ Saturday night. For the Excessive Heat Watch, from
late Saturday night through Sunday evening.
* IMPACTS...Extreme heat will significantly increase the
potential for heat related illnesses, particularly for those
working or participating in outdoor activities.
...HOT, DRY AND UNSTABLE ALONG WITH BREEZY WINDS THROUGH
THURSDAY...
.The high pressure driving this ongoing heat wave will begin to
weaken today, but will result in breezy and unstable conditions
through at least Thursday. Even as temperatures cool down
slightly over the coming days, relative humidities will remain
very low in the teens and single digits. This, combined with
incoming breezy conditions through the Cascade Gaps and spreading
into the Basin, will result in critical fire weather conditions.
* AFFECTED AREA...Fire Weather Zone 639 East Slopes of the
Northern Oregon Cascades.
* TIMING...Through this Thursday morning.
* WINDS...West 5 to 15 mph with gusts up to 25 mph.
* RELATIVE HUMIDITY...As low as 19 percent.
* TEMPERATURES...Up to 75.
* IMPACTS...Any new and existing fires have a strong potential
for extreme fire behavior. Breezy conditions may also lead to
rapid fire spread.
* HAINES...As high as 5.
...HOT, DRY AND UNSTABLE ALONG WITH BREEZY WINDS THROUGH
THURSDAY...
.The high pressure driving this ongoing heat wave will begin to
weaken today, but will result in breezy and unstable conditions
through at least Thursday. Even as temperatures cool down
slightly over the coming days, relative humidities will remain
very low in the teens and single digits. This, combined with
incoming breezy conditions through the Cascade Gaps and spreading
into the Basin, will result in critical fire weather conditions.
* AFFECTED AREA...Fire Weather Zones 641 Lower Columbia Basin of
Oregon and 691 Lower Columbia Basin.
* WINDS...West 10 to 20 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 12 percent.
* IMPACTS...Breezy conditions combined with low RHs will result
in rapid fire spread and extreme fire behavior.
* WHAT...High temperatures of 95 to 102 degrees with lows in the mid
to upper 50s expected.
* WHERE...In California, Modoc County and eastern Siskiyou County.
This includes the cities and communities of Macdoel, Tulelake,
Pondosa, Bray, Tennant, Dorris, Tionesta, Alturas, and Adin. In
Oregon, Klamath and Lake counties. This includes the cities of
Klamath Falls, Chemult, Summer Lake, Chiloquin, Malin, Keno,
Sprague River, and Lakeview.
* WHEN...Until 9 PM PDT Saturday.
* IMPACTS...Hot temperatures may cause heat illnesses. Area rivers
will be cold and can cause shock to swimmers.
* WHAT...High temperatures of 95 to 105 degrees and lows of 55 to 65
are expected.
* WHERE...Josephine and Jackson counties and eastern Curry County.
This includes the entire Rogue Valley and the cities of Medford,
Grants Pass, Cave Junction, and Butte Falls.
* WHEN...Until 9 PM PDT Saturday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Area rivers will be cold and can cause shock
to swimmers.
