* WHAT...Low temperatures between 33F and 37F will result in frost
formation.
* WHERE...In Oregon, North Oregon Coast Range and North Oregon Coast
Range Lowlands. In Washington, Willapa Hills.
* WHEN...From midnight tonight to 8 AM PDT Wednesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Low temperatures between 35F and 37F will result in frost
formation.
* WHERE...Tualatin Valley and West Central Willamette Valley.
* WHEN...From midnight tonight to 8 AM PDT Wednesday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
* WHAT...Sub-freezing temperatures as low as 30 degrees are expected.
* WHERE...Portions of the Illinois and Applegate valleys, including
Obrien, Cave Junction, Provolt, and Williams.
* WHEN...From 2 AM to 8 AM PDT Wednesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
...The Flood Warning continues for the following rivers in Oregon...
Owyhee River Below Owyhee Dam affecting Malheur County.
.High mountain snow melt and increased reservoir releases will cause
the river flows to become high. Expect minor flooding downstream
from the dam.
For the Owyhee River...including Owyhee Dam, Owyhee Dam...Minor
flooding is forecast.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Owyhee River below Owyhee Dam.
* WHEN...Until tomorrow morning.
* ADDITIONAL DETAILS...
- At 9:30 AM MDT Tuesday /8:30 AM PDT Tuesday/ the flow was
3,655.0 cfs.
- Bankfull stage is 1,000 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 9:30 AM MDT Tuesday /8:30 AM PDT Tuesday/ was
3,858.0 cfs.
- Forecast...The river is expected to fall below flood stage
just after midnight tonight and continue falling to 2,000.0
cfs Friday, May 10.
- Flood flow is 3,000.0 cfs.
- Flood History...This crest compares to a previous crest of
3,560.0 cfs on 04/20/1999.
- http://www.weather.gov/safety/flood
* WHAT...Snow above 3000 feet. Additional snow accumulations of 2
to 8 inches, heaviest above 3500 ft.
* WHERE...In Oregon, North Oregon Cascades and Cascades of
Marion and Linn Counties. In Washington, South Washington
Cascades.
* WHEN...Until 6 PM PDT this evening.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Sub-freezing temperatures as low as 30 degrees Illinois
Valley.
* WHERE...Eastern Curry County and Josephine County.
* WHEN...Until 10 AM PDT this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Snow expected above 3000 feet. Total snow accumulations
of 2 to 8 inches, heaviest above 3500 feet.
* WHERE...In Oregon, North Oregon Cascades and Cascades of
Marion and Linn Counties. In Washington, South Washington
Cascades.
* WHEN...From 3 AM to 6 PM PDT Tuesday.
* IMPACTS...Plan on slippery road conditions, especially during
the night and morning hours.
At 327 PM MDT, Doppler radar was tracking an area of blowing dust
driven by winds 50-55 mph, moving southeast into the Lower
Treasure Valley of Idaho, at 35 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Observation.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
* WHAT...Sub-freezing temperatures as low as 30 expected.
* WHERE...Most of the Illinois Valley in Josephine County. This
includes Cave Junction, Selma, Obrien, and Takilma.
* WHEN...From 3 AM to 10 AM PDT Tuesday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Snow above 4000 feet. Additional snow accumulations of up
to 4 inches. Winds gusting as high as 45 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 11 AM PDT this morning.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the morning commute.
* ADDITIONAL DETAILS...Highest snow totals are anticipated along
the Cascade crest. Lower snow totals of less than one inch are
forecast along US-97 south of Bend.
* WHAT...Wet snow. Additional snow accumulations of 2 to 8
inches, except up to 12 inches above the passes.
* WHERE...West Slopes of the Northern and Central Oregon
Cascades, and South Washington Cascades.
* WHEN...Until 3 PM PDT this afternoon.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Expect snow levels will settle around 2500
to 3000 ft today.
* WHAT...Sub-freezing temperatures as low as 30 possible Illinois
Valley.
* WHERE...Most of the Illinois Valley in Josephine County. This
includes Cave Junction, Selma, Obrien, and Takilma.
* WHEN...From late tonight through Tuesday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* ADDITIONAL DETAILS...Cloud cover could moderate temperatures and
keep them above freezing. Right now, there is a 60% chance of
freezing.
* WHAT...Snow. Additional accumulations of 3 to 8 inches, heaviest
above the passes.
* WHERE...West Slopes of the Northern and Central Oregon
Cascades, and South Washington Cascades.
* WHEN...Until 2 PM PDT Monday.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Snow levels around 3500 to 4500 feet this
evening will lower overnight, with snow levels settling around
2500 feet Monday morning.
* WHAT...Snow expected. Total snow accumulations of 2 to 8
inches, except up to 10 to 14 inches above 5000 feet.
* WHERE...West Slopes of the Northern and Central Oregon
Cascades, and South Washington Cascades.
* WHEN...From 8 PM this evening to 11 AM PDT Monday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Snow levels around 3500 to 4000 feet this
evening, lowering to 2000 to 2500 feet by Monday morning.
* WHAT...Snow expected. Total snow accumulations of 5 to 8
inches. Winds gusting as high as 35 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...From 11 PM this evening to 11 AM PDT Monday.
* IMPACTS...Travel could be very difficult. The hazardous
conditions could impact the morning commute.
* ADDITIONAL DETAILS...Highest snow totals are anticipated along
the Cascade crest. Lower snow totals of less than one inch are
forecast along US-97 south of Bend.
* WHAT...Sub-freezing temperatures as low as 30 possible..
* WHERE...Most of the Illinois Valley in Josephine County. This
includes Cave Junction, Selma, Obrien, and Takilma.
* WHEN...From late Monday night Tuesday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* ADDITIONAL DETAILS...Cloud cover could moderate temperatures and
keep them above freezing. Right now, there is a 60% chance of
freezing.
...The Flood Warning is extended for the following rivers in
Oregon...
Owyhee River Below Owyhee Dam affecting Malheur County.
.High mountain snow melt and increased reservoir releases will cause
the river flows to remain high. Expect minor flooding downstream
from the dam.
For the Owyhee River...including Owyhee Dam...Minor flooding is
forecast.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Owyhee River below Owyhee Dam.
* WHEN...Until Wednesday morning.
* ADDITIONAL DETAILS...
- At 11:30 AM MDT Sunday /10:30 AM PDT Sunday/ the flow was
3,821 cfs.
- Recent Activity...The maximum river flow in the 24 hours
ending at 11:30 AM MDT Sunday /10:30 AM PDT Sunday/ was 3,894
cfs.
- Forecast...The river is expected to remain near 3,800 cfs in
the near term, though additional rises are possible.
- Flood flow is 3,000 cfs.
- Flood History...This crest compares to a previous crest of
3,560.0 cfs on 04/20/1999.
- https://www.weather.gov/safety/flood
* WHAT...Snow expected. Total snow accumulations of up to 6 to 8
inches. Winds gusting as high as 35 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...From 11 PM this evening to 11 AM PDT Monday.
* IMPACTS...Travel could be very difficult. The hazardous
conditions could impact the morning commute.
* ADDITIONAL DETAILS...US-97 is expected to receive less than an
inch of snow.
* WHAT...Snow expected. Snow levels near 4000 feet today, but
lower to near 2500 feet tonight. Total snow accumulations 2 to
6 inches, but 7 to 15 inches above 4500 feet.
* WHERE...West Slopes of the Northern and Central Oregon
Cascades, and South Washington Cascades.
* WHEN...From 8 PM this evening to 11 AM PDT Monday.
* IMPACTS...Travel could be difficult at times.
* WHAT...Snow expected. Total snow accumulations of up to 6-8
inches. Winds gusting as high as 35 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...From 11 PM Sunday to 11 AM PDT Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the morning commute.
* ADDITIONAL DETAILS...US-97 is expected to receive less than an
inch of snow.
