At 638 PM PDT, Doppler radar was tracking a strong thunderstorm over
Belknap Springs, or 36 miles west of Bend, moving north at 15 mph.
HAZARD...Wind gusts up to 45 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Belknap Springs.
This includes the following highways in Oregon...
State Highway 126 from Eugene to McKenzie Bridge between mile
markers 53 and 55.
State Highway 126 from McKenzie Bridge to the Santiam Highway
between mile markers 7 and 19.
Ongoing thunderstorms are producing locally strong, gusty outflow
winds of 40-55 mph across central Oregon and along the east
slopes of the Oregon Cascades. Radar indicates stronger storms
have produced hail near one inch in diameter, and frequent cloud-
to-ground lightning is also occurring.
SVRMFR
The National Weather Service in Medford has issued a
* Severe Thunderstorm Warning for...
Southeastern Douglas County in southwestern Oregon...
Northeastern Jackson County in southwestern Oregon...
Northwestern Klamath County in south central Oregon...
* Until 400 PM PDT.
* At 327 PM PDT, a severe thunderstorm was located near Thousand
Springs Sno-Park, or near Crater Lake, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Thousand Springs Sno-Park, Broken Arrow Campground, and Highway 138
Diamond Lake Summit.
At 322 PM PDT, Doppler radar was tracking a strong thunderstorm near
Thousand Springs Sno-Park, or near Crater Lake. This storm was nearly
stationary.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Crater Lake, Crater Lake National Park, Annie Creek Snow Park, Crater
Lake Lodge, Thousand Springs Sno-Park, and Highway 62 Near Crater
Lake.
...DRY THUNDERSTORMS EXPECTED FOR CENTRAL OREGON TODAY, FOLLOWED
BY DRY AND WINDY CONDITIONS ACROSS THE COLUMBIA BASIN AND THROUGH
THE KITTITAS VALLEY WEDNESDAY...
.A ridge of high pressure overhead is inducing hot and dry
conditions across the region. Dry thunderstorms have already
initiated this afternoon across central Oregon. The ridge of high
pressure is anticipated to break down further on Wednesday, with
west winds picking up through the Cascade gaps. With RHs having
little time to recover from the heat, this will lead to critical
fire weather conditions across the Kittitas Valley and into the
Columbia Basin.
The National Weather Service in Pendleton has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from 2 PM to 9 PM PDT Wednesday.
* AFFECTED AREA...Fire Weather Zone 691 Lower Columbia Basin of
Oregon.
* TIMING...From 2 PM to 9 PM PDT Wednesday.
* WINDS...West 15 to 25 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...As low as 10 percent.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
...DRY THUNDERSTORMS EXPECTED FOR CENTRAL OREGON TODAY, FOLLOWED
BY DRY AND WINDY CONDITIONS ACROSS THE COLUMBIA BASIN AND THROUGH
THE KITTITAS VALLEY WEDNESDAY...
.A ridge of high pressure overhead is inducing hot and dry
conditions across the region. Dry thunderstorms have already
initiated this afternoon across central Oregon. The ridge of high
pressure is anticipated to break down further on Wednesday, with
west winds picking up through the Cascade gaps. With RHs having
little time to recover from the heat, this will lead to critical
fire weather conditions across the Kittitas Valley and into the
Columbia Basin.
* AFFECTED AREA...Fire Weather Zone 700 Central Mountains of
Oregon.
* TIMING...Until 9 PM PDT this evening.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* RAINFALL AMOUNTS...Storms are mostly expected to be dry with
rainfall amounts less than a tenth of an inch, though a few
storms could produce rainfall amounts in excess of a tenth of an
inch.
* OUTFLOW WINDS...As high as 50 mph.
...RED FLAG WARNING FOR SCATTERED LIGHTNING...
.Scattered thunderstorms will develop Wednesday afternoon and
evening across southeast Oregon. Some of the storms will contain
little rainfall, and combined with hot temperatures and low
humidity will lead to critical fire weather conditions.
The National Weather Service in Boise has issued a Red Flag
Warning for lightning, which is in effect from noon MDT /11 AM
PDT/ Wednesday to midnight MDT /11 PM PDT/ Wednesday night.
* AFFECTED AREA...In Oregon, Fire Weather Zones 670 Burns BLM,
672 Southern Grasslands, 673 Central Canyonlands, 674
Northwestern Vale BLM and 675 Baker Valley.
* TIMING...From noon MDT /11 AM PDT/ Wednesday to midnight MDT
/11 PM PDT/ Wednesday night.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* THUNDERSTORMS...Scattered.
* OUTFLOW WINDS...Isolated gusts up to 50 mph.
* WHAT...Temperatures up to 103 Lower Snake Plain, Treasure Valley,
and Weiser Basin.
* WHERE...Portions of southwest Idaho and southeast Oregon.
* WHEN...Until 8 PM MDT /7 PM PDT/ this evening.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
The National Weather Service in Medford has issued a Red Flag
Warning, which is in effect from 2 PM to 8 PM PDT Wednesday.
* IMPACTS...Any fires that develop will likely spread rapidly.
* AFFECTED AREA...In CAZ285...Fire weather zone 285.In ORZ624...
Fire weather zone 624.In ORZ625...Fire weather zone 625.
* THUNDERSTORMS...Scattered afternoon and evening thunderstorms,
mainly along and eats of the highway 97 corridor.
* OUTFLOW WINDS...Gusts up to 45 mph. These outflow winds can
travel up to 25 miles away from the thunderstorm that caused it.
* DETAILEDURL...View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Temperatures up to 104 expected in the Lower Snake Plain,
Treasure Valley, and Weiser Basin.
* WHERE...Portions of southwest Idaho and southeast Oregon.
* WHEN...From 11 AM MDT /10 AM PDT/ this morning to 8 PM MDT /7 PM
PDT/ this evening.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
SVRMFR
The National Weather Service in Medford has issued a
* Severe Thunderstorm Warning for...
West central Klamath County in south central Oregon...
* Until 700 PM PDT.
* At 636 PM PDT, a severe thunderstorm was located near Fort Klamath,
or 17 miles south of Crater Lake, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Annie Creek Snow Park and Fort Klamath.
At 630 PM PDT, Doppler radar was tracking a strong thunderstorm over
Worden, or 11 miles southwest of Klamath Falls, moving northwest at
15 mph.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Miller Island Klamath Wildlife Area, Spring Island Boat Launch,
Midland, Worden, Keno, Klamath River Campground, and Topsy
Campground.
* WHAT...Hot conditions with temperatures up to 103 degrees. This
will pose a moderate to major risk of heat-related illness.
* WHERE...Lower Columbia Basin of Oregon and Washington.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Extreme heat will significantly increase the risk of
heat-related illnesses for much of the population, especially
those who are heat sensitive and those without effective cooling
or adequate hydration.
* WHAT...Hot conditions with temperatures up to 97 degrees. This
will pose a moderate to major risk of heat-related illness.
* WHERE...Foothills of the Southern Blue Mountains of Oregon and
North Central Oregon.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Heat will significantly increase the risk of
heat-related illnesses for those who are sensitive to heat,
especially those without effective cooling or adequate hydration.
* WHAT...Hot conditions with temperatures up to 100 degrees. This
will pose a moderate to major risk of heat-related illness.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Foothills of the Blue Mountains of
Washington.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Extreme heat will significantly increase the risk of
heat-related illnesses for much of the population, especially
those who are heat sensitive and those without effective cooling
or adequate hydration.
* WHAT...Hot conditions with temperatures up to 100 degrees. This
will pose a moderate to major risk of heat-related illness.
* WHERE...Eastern Columbia River Gorge of Oregon and Washington.
* WHEN...Until 9 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses. Heat will
significantly increase the risk of heat-related illnesses for
those who are sensitive to heat, especially those without
effective cooling or adequate hydration.
* WHAT...Temperatures up to 104 expected in the Lower Snake Plain,
Treasure Valley, and Weiser Basin.
* WHERE...Portions of southwest Idaho and southeast Oregon.
* WHEN...From 11 AM MDT /10 AM PDT/ to 8 PM MDT /7 PM PDT/ Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
...DRY THUNDERSTORMS EXPECTED FOR CENTRAL OREGON TUESDAY, FOLLOWED
BY DRY AND WINDY CONDITIONS ACROSS THE KITTITAS VALLEY AND
WASHINGTON BASIN WEDNESDAY...
.The high pressure currently leading to hot and dry conditions
will start to break down Tuesday into Wednesday, allowing for dry
thunderstorms to develop across central Oregon. Once high pressure
has completely broken down on Wednesday, winds will pick up. With
RHs having little time to recover from Monday and Tuesday's heat,
this will lead to potentially critical fire weather conditions
across the Kittitas Valley and into the Washington Columbia Basin.
The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from 2 PM to
9 PM PDT Tuesday.
* AFFECTED AREA...Fire Weather Zone 700 Central Mountains of
Oregon.
* TIMING...From 2 PM to 9 PM PDT Tuesday.
* IMPACTS...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
* RAINFALL AMOUNTS...Storms are mostly expected to be dry, with
rainfall amounts less than a tenth of an inch. A few isolated
storm cells could produce rainfall amounts of 0.1 to 0.2
inches.
* OUTFLOW WINDS...As high as 45 mph.
* WHAT...Temperatures up to 103 expected in the Lower Snake Plain,
Treasure Valley, and Weiser Basin.
* WHERE...Portions of southwest Idaho and southeast Oregon.
* WHEN...From 11 AM MDT /10 AM PDT/ to 8 PM MDT /7 PM PDT/ Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
* WHAT...Temperatures up to 103 expected.
* WHERE...Treasure Valley and Weiser River Basin.
* WHEN...From 11 AM MDT /10 AM PDT/ to 8 PM MDT /7 PM PDT/ Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.