[willamette-fcst] Forecast - Wednesday, July 18th, 2007
Willamette Valley Ag/Burning Forecast
willamette-fcst at listsmart.osl.state.or.us
Wed Jul 18 08:59:25 PDT 2007
Daily Smoke Management Forecast
Oregon Department of Agriculture
Smoke Management Program
Weather Outlook and Field Burning Advisory for Willamette Valley Growers and Fire Districts.
Wednesday, July 18th, 2007 at 9:00am.
Agricultural burning is not recommended.
Preparatory burning is not allowed.
Propane flaming is not allowed.
Stack burning is not allowed.
A Strong upper-level low pressure area, off the Southern
Oregon Coastline this morning, was continuing to spread
clouds and rain across Western Oregon. Rainfall amounts, in
the past 30 hours, have exceeded .10\" throughout the
Willamette Valley, with Eugene recording a third of an
The steady rainfall will taper off to showers behind a
northward-moving surface front, which was near Eugene at
8am. This front should reach Salem by 10am and Portland by
noon. Colder air aloft, in the wake of this front, may help
trigger afternoon shower and thundershower development
across the Willamette Valley.
Due to wet conditions, burning is not allowed today. With
showers expected to continue through Thursday morning and
more rain possible Friday, the potential for burning this week
Var 3 this morning, WSW 6 this afternoon.
Var 3 this morning, WSW 10 this afternoon.
Atmospheric Ventilation Conditions:
Maximum mixing height today will be near 3500 feet. Ventilation index 35.
Salem\'s high temperature today will be near 72.
Minimum relative humidity will be near 55%.
Salem sunset tonight: 8:54pm; sunrise tomorrow: 5:44am.
An upper-level trough will move through Western Oregon
Thursday morning, followed by brief drier weather through early
Friday. Another weather system will likely spread rain onto
the Oregon Coastline Friday morning. This front appears as
if it will be strong enough to bring light rain into the
Willamette Valley Friday afternoon, with the greatest
potential for rain in the northern sections.
Some dry weather is possible Saturday afternoon, with
another weather system now forecast to makes its way onto
the Oregon Coast Sunday morning. This system will weaken,
as it moves inland, but it may also be strong enough to bring
light rain into the Willamette Valley...especially northern
The long-range computer models show the southwesterly flow
aloft shifting northward, beginning Monday, which will bring
drier and warmer weather to the region. The next threat of
a weather system moving into the region looks to be late on
Tomorrow (19 Jul): Showers early. Afternoon Clearing. 58/76
Fri (20 Jul): Mostly Cloudy. Chance of Rain By Afternoon. 55/74
Sat (21 Jul): Mostly Cloudy. Chance of Morning Showers. 59/77
Sun (22 Jul): Increasing Clouds. Slight Chance of Rain in the Afternoon. 59/79
Mon (23 Jul): Becoming Mostly Sunny. 58/80
Tue (24 Jul): Sunny. 58/88
Wed (25 Jul): Increasing Clouds. 59/88
weather at oda.state.or.us
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