Portland, Oregon Weather Conditions

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Current Conditions

  • 60°
  • Clear
  • Wind: West 4 mph
  • Humidity: 69%
  • Visibility: 10.0 miles
  • Dew Point: 50°
  • Pressure: 29.84 in. 0

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
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Mostly Cloudy
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68°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Chance of a Thunderstorm
  • High: 93 °
  • Low: 59 °
  • Chance of a Thunderstorm
  • Tuesday
  • Mostly Cloudy
  • High: 79 °
  • Low: 61 °
  • Mostly Cloudy
  • Wednesday
  • Chance of Rain
  • High: 81 °
  • Low: 57 °
  • Chance of Rain
  • Thursday
  • Partly Cloudy
  • High: 75 °
  • Low: 59 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 79 °
  • Low: 57 °
  • Partly Cloudy

Forecast for Portland, Oregon

Updated: 2:00 AM PDT on September 15, 2014

  • Monday

    Clear in the morning, then overcast with a chance of a thunderstorm. High of 93F. Winds from the North at 5 to 10 mph shifting to the NE in the afternoon. Chance of rain 20%.

  • Monday Night

    Clear with a chance of a thunderstorm in the evening, then partly cloudy with a chance of a thunderstorm. Low of 59F. Winds less than 5 mph.

  • Tuesday

    Mostly cloudy in the morning, then overcast. High of 79F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 61F. Winds less than 5 mph.

  • Wednesday

    Overcast with a chance of rain. High of 81F. Winds from the SSW at 5 to 10 mph shifting to the WNW in the afternoon. Chance of rain 20%.

  • Wednesday Night

    Overcast. Low of 57F. Winds less than 5 mph.

  • Thursday

    Partly cloudy in the morning, then overcast. High of 75F. Winds from the WNW at 5 to 10 mph.

  • Thursday Night

    Mostly cloudy with a chance of rain. Low of 59F. Winds less than 5 mph. Chance of rain 20%.

  • Friday

    Partly cloudy. Fog early. High of 79F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Saturday

    Clear. High of 86F. Winds from the North at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Sunday

    Clear. High of 88F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Monday

    Clear. High of 86F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 63F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 84F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 55F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 86F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Thursday

    Clear. High of 84F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 57F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Special Statement  Statement as of 1:42 PM PDT on September 14, 2014


..smoke will drift over parts of northwest Oregon and southwest
Washington through Monday night...

Smoke from the 36-pit wildfire will impact areas of northwest
Oregon and southwest Washington the next couple of days. The
wildfire is 10 miles east of Estacada along Highway 224. East to
southeast low-level winds will carry some of the smoke over parts
of the northern and central Willamette Valley today through Monday
night.

Southwest mid-level winds will also bring some smoke to
the western Columbia River gorge and the southwest Washington
Cascades and Cascade foothills.

The winds will shift to the south to southwest late Monday night
and Tuesday as a weak disturbance brushes by the region. This
change in wind direction should reduce the impact of smoke to the
Willamette Valley... but may increase smoke across The Gorge and
South Washington Cascades.

The smoke may slightly reduce visibility at times. Those concerned
about air quality should refer to the Oregon department of
environmental quality web site at www.Deq.State.Or.US/aqi/index.Aspx



 Fire Weather Warning  Statement as of 1:10 PM PDT on September 14, 2014


... Red flag warning now in effect until 5 am PDT Tuesday for low
relative humidity... an increasingly unstable environment... critically
dry fuels and dry thunderstorms for Oregon fire weather zones
602... 603... 604... 605... 606... 607... and 608... as well as
Washington fire weather zones 604 and 660...

* affected area... Oregon fire weather zones
602... 603... 604... 605... 606... 607... 608. Washington zones 604
and 660. This includes the Clark County lowlands and extreme
South Washington Cascades and foothills in Washington and much
of northwest Oregon from the Coast Range to the Cascades.

* Timing... critical fire weather conditions will continue through
Monday night.

* Stability... mid-level Haines 6 conditions through Monday.

* Relative humidity... 12 to 25 percent Monday. Very poor humidity
recovery tonight on slopes and ridges.

* Thunderstorms... a threat of thunderstorms over the south half of
the forecast area late Monday afternoon or early evening then
spreading north thereafter. Very little rainfall with any
storm... especially those over the north half of the region.

* Winds... east wind will become rather localized tonight and
Monday. Strongest wind of 10 to 20 mph with gusts to 30 mph will
be confined to portions of the north Oregon Cascades and
foothills... west portion of zone 660... and in the Columbia Gorge
west of Cascade Locks.

* Impacts... the combination of low humidity... an increasingly
unstable environment... critically dry fuels and possible
lightning may result in rapid fire spread of on-going incidents
and the potential for new starts. Wind will be an added factor
near the Columbia River gorge.

Precautionary/preparedness actions... a red flag warning means
that critical fire weather conditions are either occurring now...
or will shortly. A combination of strong winds... low relative
humidity... and warm temperatures will create explosive fire
growth potential.



Weishaar



Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Portland - West Hills, Portland, OR

Updated: 2:27 AM PDT

Temperature: 67.9 °F Dew Point: -36 °F Humidity: - Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Bridlemile, Portland, OR

Updated: 2:16 AM PDT

Temperature: 70.0 °F Dew Point: 34 °F Humidity: 27% Wind: East at 7.8 mph Pressure: 29.70 in Hourly Precipitation: - Graphs

Location: Multnomah Village North, Portland, OR

Updated: 2:14 AM PDT

Temperature: 69.4 °F Dew Point: 39 °F Humidity: 33% Wind: SE at 1.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 2:24 AM PDT

Temperature: 69.7 °F Dew Point: 38 °F Humidity: 32% Wind: WSW at 1.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 2:20 AM PDT

Temperature: 69.5 °F Dew Point: 44 °F Humidity: 40% Wind: Calm Pressure: 29.79 in Hourly Precipitation: - Graphs

Location: South Burlingame, Portland, OR

Updated: 2:27 AM PDT

Temperature: 68.0 °F Dew Point: 41 °F Humidity: 37% Wind: Calm Pressure: 29.48 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest Fremont Bridge West (I-405 MP 3. OR US ODOT, Portland, OR

Updated: 2:00 AM PDT

Temperature: 67 °F Dew Point: 45 °F Humidity: 45% Wind: NW at 1 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 2:24 AM PDT

Temperature: 59.0 °F Dew Point: 46 °F Humidity: 62% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 2:27 AM PDT

Temperature: 63.3 °F Dew Point: 51 °F Humidity: 65% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 2:16 AM PDT

Temperature: 57.3 °F Dew Point: 48 °F Humidity: 70% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Graphs

Location: Sullivan's Gulch, Portland, OR

Updated: 2:27 AM PDT

Temperature: 66.2 °F Dew Point: 29 °F Humidity: 25% Wind: Calm Pressure: 29.59 in Hourly Precipitation: 0.00 in Graphs

Location: Irvington, Portland, OR

Updated: 2:27 AM PDT

Temperature: 59.2 °F Dew Point: 49 °F Humidity: 68% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: Laurelhurst, Portland, OR

Updated: 2:27 AM PDT

Temperature: 65.1 °F Dew Point: 34 °F Humidity: 31% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 0.00 in Graphs

Location: Smith School, Portland, OR

Updated: 2:14 AM PDT

Temperature: 67.5 °F Dew Point: 39 °F Humidity: 35% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Creston Park, Portland, OR

Updated: 2:27 AM PDT

Temperature: 63.1 °F Dew Point: 45 °F Humidity: 52% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: West Slope, Portland, OR

Updated: 2:13 AM PDT

Temperature: 61.6 °F Dew Point: 46 °F Humidity: 57% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: Torreyview, Portland, OR

Updated: 2:27 AM PDT

Temperature: 68.4 °F Dew Point: 27 °F Humidity: 21% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: Woodstock, Portland, OR

Updated: 2:27 AM PDT

Temperature: 61.4 °F Dew Point: 44 °F Humidity: 53% Wind: Calm Pressure: 29.75 in Hourly Precipitation: - Graphs

Location: Crystal P (West Haven), Portland, OR

Updated: 2:27 AM PDT

Temperature: 66.0 °F Dew Point: 36 °F Humidity: 31% Wind: North at 2.2 mph Pressure: 29.35 in Hourly Precipitation: 0.00 in Graphs

Location: West Portland Park, Portland, OR

Updated: 2:26 AM PDT

Temperature: 67.8 °F Dew Point: 38 °F Humidity: 33% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Ardenwald Station #1, Portland, OR

Updated: 2:27 AM PDT

Temperature: 60.9 °F Dew Point: 45 °F Humidity: 55% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Graphs

Location: Garden Home, Portland, OR

Updated: 2:27 AM PDT

Temperature: 59.0 °F Dew Point: 46 °F Humidity: 62% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Mt Tabor, Portland, OR

Updated: 2:25 AM PDT

Temperature: 55.2 °F Dew Point: 43 °F Humidity: 64% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Humboldt, Portland, OR

Updated: 2:27 AM PDT

Temperature: 59.5 °F Dew Point: 44 °F Humidity: 57% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

Location: Portland, OR

Updated: 2:27 AM PDT

Temperature: 68.9 °F Dew Point: 34 °F Humidity: 27% Wind: ENE at 10.0 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Graphs

Location: Portland - SE Lafayette, Portland, OR

Updated: 1:50 AM PDT

Temperature: 65.1 °F Dew Point: - Humidity: 41% Wind: North at 2.9 mph Pressure: 29.57 in Hourly Precipitation: - Graphs

Location: MesoWest US26 EB to I-217 SB (US 26 MP 69 OR US ODOT, Portland, OR

Updated: 2:00 AM PDT

Temperature: 64 °F Dew Point: 44 °F Humidity: 48% Wind: North at 1 mph Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Leahy & NW 94th Tr., Portland, OR

Updated: 1:33 AM PDT

Temperature: 66.2 °F Dew Point: 45 °F Humidity: 46% Wind: SSE at 1.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Graphs

Location: East Beaverton, Beaverton, OR

Updated: 2:27 AM PDT

Temperature: 59.0 °F Dew Point: 47 °F Humidity: 65% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: Forest Heights, Portland, OR

Updated: 2:16 AM PDT

Temperature: 66.4 °F Dew Point: 39 °F Humidity: 37% Wind: NE at 4.8 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Beaumont-Wilshire, Portland, OR

Updated: 2:27 AM PDT

Temperature: 62.5 °F Dew Point: 44 °F Humidity: 51% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Graphs

Location: Milwaukie, OR

Updated: 2:27 AM PDT

Temperature: 61.6 °F Dew Point: 44 °F Humidity: 52% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND OR
903 PM PDT SUN SEP 14 2014

.SYNOPSIS...HOT AND DRY CONDITIONS WILL CONTINUE INTO MONDAY. SMOKE 
FROM THE 36-PIT WILDFIRE WILL IMPACT AREAS OF NW OREGON AND SW 
WASHINGTON THROUGH MONDAY NIGHT. AN UPPER LEVEL TROUGH WILL BRUSH BY 
THE REGION MONDAY NIGHT...AND POSSIBLY TRIGGER SOME DRY 
THUNDERSTORMS OVER THE AREA THROUGH TUESDAY MORNING. THIS TROUGH 
WILL ALSO BRING A RETURN OF LOW MARINE CLOUDS TO THE AREA...AND HELP 
COOL TEMPERATURES FOR TUESDAY. ANOTHER TROUGH WILL BRING ANOTHER 
SLIGHT CHANCE FOR THUNDERSTORMS AND POSSIBLY SOME RAIN MID WEEK. 
HIGH PRESSURE WILL REBUILD FRIDAY WITH DRY AND WARMER CONDITIONS 
NEXT WEEKEND. 

&&

.UPDATE...IMPRESSIVE HEAT SIGNATURE IS SHOWING UP ON SATELLITE 11-3.9
UM FOG PRODUCT FROM THE 36 PIT FIRE...BURNING ABOUT 10 MILES SE OF
ESTACADA. AS A RESULT THIS FIRE CONTINUES TO SPEW OUT PLENTY OF
SMOKE. WITH ANOTHER WARM AND DRY NIGHT TONIGHT IT WILL LIKELY
CONTINUE TO PRODUCE A LARGE AMOUNT OF SMOKE OVERNIGHT. THIS SMOKE
WILL DRAIN DOWN THE CLACKAMAS RIVER DRAINAGE...LIKELY BECOMING DENSE
AS A DRAINAGE INVERSION DEVELOPS. THE SMOKE MAY STILL BE FAIRLY DENSE
AS IT COMES DOWN THE LOWER CLACKAMAS NEAR ESTACADA AND SOUTHEAST
PORTIONS OF THE PDX METRO AREA...BRINGING UP AIR QUALITY CONCERNS.
THE DAY SHIFT ISSUED AN SPS HIGHLIGHTING AIR QUALITY TO FOLKS WHICH
WAS A GOOD CALL. A GOOD WEBSITE TO VISIT FOR AIR QUALITY INFO IS
WWW.DEQ.STATE.OR.US/AQI/INDEX.ASPX

EVEN WHERE THE SMOKE IS NOT THICK ENOUGH TO RAISE AIR QUALITY
CONCERNS...IT WILL LIKELY BE ENOUGH TO SHADE THE SUN A GOOD BIT OF
THE DAY MONDAY. IN THE MORNING...OUTFLOW FROM THE CLACKAMAS RIVER
DRAINAGE WILL LIKELY SPREAD SMOKE THROUGHOUT THE PDX METRO AGAIN. IN
THE AFTERNOON...FLOW ALOFT WILL BE TURNING MORE SOUTHEASTERLY...
WHICH COULD CONTINUE TO SHADE THE SUN. AS A RESULT WE LOWERED HIGH
TEMPS A BIT FOR THE METRO AREA MONDAY...INTO THE MID-UPPER 80S. THE
EFFECT OF SMOKE ON TEMPS IS HARD TO PREDICT...SO IF THE SMOKE THINS
OUT A BIT MANY LOCATIONS COULD EXCEED 90 DEGREES MONDAY AFTERNOON.

IN ANOTHER INTERESTING TWIST IN THE MODELS...THE 00Z NAM SEEMS TO BE
BACKING OFF A BIT ON THE THREAT OF DRY THUNDER MON NIGHT. HOWEVER
LOOKING AT WATER VAPOR IMAGERY IT APPEARS THE 00Z NAM IS WEAKENING
THE UPPER LOW PRESENTLY OFF CALIFORNIA MUCH TOO FAST. REGARDLESS
MODELS ARE STILL IN AGREEMENT THAT THIS SYSTEM WILL BRUSH THE OREGON
COAST AS AN OPEN TROUGH...WITH SOME DEGREE OF DIFFLUENT FLOW ALOFT.
THEREFORE THE SLIGHT CHANCE OF DRY THUNDER THROUGHOUT OUR FCST AREA
STILL LOOKS GOOD MON NIGHT.

EVERYTHING ELSE LOOKS ON TRACK WITH THE OVERALL FORECAST. MEDIUM
RANGE MODELS SEEM TO BE BUILDING ANOTHER STRONG RIDGE OVER THE 
REGION FRIDAY INTO NEXT WEEKEND...THEREFORE FUTURE SHIFTS MAY NEED 
TO CONSIDER WARMING UP FRI/SAT/SUN IF MODELS CONTINUE THIS TREND. 
WEAGLE

/PREV DISC ISSUED 308 PM PDT SUN SEP 14 2014/

.SHORT TERM...DRY OFFSHORE FLOW IS MAINTAINING MOSTLY CLEAR SKIES
ACROSS NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS AFTERNOON. THE
EAST TO SOUTHEAST LOW-LEVEL WINDS IS CARRYING SMOKE FROM THE 36-PIT
WILDFIRE LOCATED NEAR ESTACADA OREGON OVER PARTS OF THE NORTHERN AND
CENTRAL WILLAMETTE VALLEY. SOUTHWEST WINDS ALOFT IS SENDING SOME OF
THE SMOKE OVER THE WESTERN COLUMBIA RIVER GORGE AND SOUTHWEST
WASHINGTON CASCADES AND CASCADE FOOTHILLS. HAVE ISSUED A SPECIAL
WEATHER STATEMENT HIGHLIGHTING THE EXPECTED SMOKE ADVECTION FOR THE
NEXT 24 HOURS OR SO.

THE EASTERLY SURFACE PRESSURE GRADIENT WILL CONTINUE TO WEAKEN
TONIGHT AND MONDAY AS LOW PRESSURE APPROACHES FROM THE
SOUTHWEST...BUT WEAK OFFSHORE LOW-LEVEL WINDS WILL CONTINUE THROUGH
MOST OF MONDAY. EXPECT MONDAY TO BE SLIGHTLY WARMER MONDAY...EXCEPT
ALONG THE IMMEDIATE COAST AND IN AREAS WHERE THICK SMOKE BLOCKS SOLAR
RADIATION.  

WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW NEAR 36N 136W WITH MID
AND UPPER LEVEL MOISTURE ENTRAINED AROUND IT. THIS MID-LEVEL MOISTURE
WILL BEGIN SPREADING OVER NW OREGON FROM THE SOUTH TO THE NORTH
MONDAY AFTERNOON AS THE UPPER LOW NEARS THE CENTRAL OREGON COAST.
THIS MOISTURE COMBINED WITH INCREASING UPPER LEVEL INSTABILITY MAY
RESULT IN ELEVATED CONVECTION MONDAY NIGHT INTO TUESDAY MORNING AS
THE UPPER TROUGH BRUSHES OVER NW OREGON. 

CONFIDENCE ON WHERE THESE STORMS MAY DEVELOP IS STILL LOW AS
ELEVATED CONVECTION HAS A WAY OF SPROUTING UP WHERE IT IS LEAST
EXPECTED. HAVE THEREFORE CONTINUED THE CURRENT COVERAGE OF "ANYWHERE
IS POSSIBLE" MONDAY NIGHT. HOWEVER...THERE IS FAIR CONFIDENCE THAT
THE THREAT FOR THUNDERSTORMS SHOULD BEGIN TO THE SOUTH MONDAY
AFTERNOON WITH S-SE FLOW ALOFT MOVING THE THREAT NORTHWARD THROUGH
THE NIGHT. 

DUE TO VERY DRY AIR NEAR THE SURFACE...IT IS UNLIKELY THESE
THUNDERSTORMS WILL PRODUCE MUCH...IF ANY...RAIN...WHICH IS CONCERNING
CONSIDERING THE EXTREMELY DRY FIRE FUELS ACROSS THE AREA. 

THE UPPER TROUGH WILL ALSO RESULT IN A SOUTHERLY WIND REVERSAL AND
POSSIBLY A STRATUS SURGE UP THE COAST MONDAY EVENING...POSSIBLY
PUSHING INLAND TUESDAY MORNING. AM NOT VERY CONFIDENT ON THE
COVERAGE OF INLAND LOW CLOUDS TUESDAY MORNING AS
SOMETIMES...SOUTHWEST WINDS LEADS TO MORE CLOUDS FOR THE SOUTHERN
WILLAMETTE VALLEY THAN THE NORTHERN. HOWEVER...IT ALL DEPENDS ON HOW
DEEP THE MARINE LAYER IS...AND WHETHER THE CLOUDS CAN EASILY MOVE
OVER THE COAST RANGE.  THE DEEPENING MARINE LAYER MAY EVEN
SQUEEZE OUT SOME DRIZZLE FOR COASTAL AREAS.

REGARDLESS OF THE EXTENT OF CLOUDS...THE MARINE PUSH WILL COOL
TEMPERATURES SIGNIFICANTLY TUESDAY...BACK TO THE LOW 80S INLAND AND
MID TO UPPER 60S FOR THE COAST. ANOTHER APPROACHING UPPER TROUGH WILL
APPROACH FROM THE SOUTH TUESDAY NIGHT WITH MORE MARINE CLOUDS ALONG
THE COAST...AND POSSIBLY INLAND WEDNESDAY MORNING. 

MODELS SUGGEST THAT THERE WILL BE MORE MOISTURE ASSOCIATED WITH THIS
SECOND TROUGH. NW OREGON WILL BE NEAR THE LEFT-FRONT EXIT REGION OF A
95+ KT 500MB JET WEDNESDAY AFTERNOON. WITH THE MOISTURE AND
LIFT...HAVE ADDED A SLIGHT CHANCE FOR THUNDERSTORMS FOR THE NORTHERN
OREGON CASCADES LATE WEDNESDAY AFTERNOON AND EVENING. TJ

.LONG TERM...THURSDAY THROUGH SUNDAY...MODELS ARE CONTINUING TO SHOW 
A DEEP UPPER LEVEL TROUGH MOVING THROUGH OUR REGION LATE NEXT WEEK 
PROVIDING FOR A CHANCE OF SHOWERS ON THURSDAY AND FRIDAY. THERE IS 
THE POSSIBILITY OF AFTERNOON THUNDERSTORMS DEVELOPING OVER THE 
CASCADES ON THURSDAY. HOWEVER...THERE IS NOT ENOUGH CONFIDENCE AT 
THIS POINT TO MENTION IT IN THE FORECAST. UPPER LEVEL RIDGING LOOKS 
TO RETURN NEXT WEEKEND. THIS WILL PROVIDE FOR A DECREASE IN CLOUD 
COVER AND A SLIGHT INCREASE IN TEMPERATURE ACROSS THE CWA. /64

&&

.AVIATION...WEAK OFFSHORE FLOW WILL GENERALLY MAINTAIN VFR
CONDITIONS AT MOST TAF SITES THROUGH 06Z TUESDAY WITH A COUPLE
NOTABLE EXCEPTIONS. FIRST...KONP COULD SEE LIFR/IFR FOG PUSH INTO
THE TERMINAL FROM THE SOUTHWEST LATE TONIGHT...BUT CURRENTLY
THINK LIGHT OFFSHORE WINDS WILL HELP TO KEEP IT AWAY FROM THE
TERMINAL OVERNIGHT. IF IT DOES HOLD OUT...EXPECT LIFR TO IFR
CONDITIONS TO SPREAD INTO THE TERMINAL LATER MONDAY...AND LAST
WELL INTO MONDAY EVENING.

IN ADDITION...SMOKE FROM THE 36 PIT FIRE BURNING NEAR ESTACADA
CONTINUES TO PRODUCE SEVERAL SMOKE LAYERS VARYING BETWEEN THE
GROUND LEVEL AROUND SALEM...AND TO NEARLY 10KFT AROUND MT
HOOD...WITH ONE CURRENTLY NEAR 5KFT AT KPDX. EXPECT THE THICKEST
SMOKE BELOW 3KFT TO PRIMARILY LIE BETWEEN ESTACADA...KPDX...KHIO
AND KSLE LATE TONIGHT THROUGH MONDAY AFTERNOON...BEFORE
INCREASING SOUTHWESTERLY WINDS PUSH THE SMOKE OVER THE CASCADES
LATE WEDNESDAY AFTERNOON AND EVENING.

KPDX AND APPROACHES...WEAK OFFSHORE FLOW WILL GENERALLY MAINTAIN
VFR CONDITIONS THROUGH 06Z TUESDAY. THE MAIN EXCEPTION TO THIS
WILL BE LATE TONIGHT THROUGH MIDDAY MONDAY WHEN SMOKE FROM THE
NEARBY 36 PIT FIRE POSSIBLY PRODUCES CEILINGS BETWEEN 1.5 TO 3KFT.
THERE IS CERTAINLY POTENTIAL FOR SURFACE VISIBILITIES TO BE
REDUCED AS WELL. HOWEVER...TIMING THESE RESTRICTIONS IS LOW
CONFIDENCE AT THIS POINT. /NEUMAN

&&

.MARINE...A SOUTHERLY SURGE OF WINDS WILL OCCUR MONDAY NIGHT
ACROSS THE WATERS...BUT SMALL CRAFT ADVISORIES DO NOT APPEAR
WARRANTED AT THIS POINT. THERE IS A SMALL CHANCE THUNDERSTORMS
COULD IMPACT THE WATERS AS THEY MOVE SOUTH TO NORTH MONDAY NIGHT.

OTHERWISE...WE WILL CONTINUE TO MONITOR A LOW PRESSURE SYSTEM AS
TI MOVES TOWARDS THE WEST COAST MIDWEEK. HOWEVER...MODELS
CONTINUE TO SUGGEST IT WILL WEAKEN SIGNIFICANTLY BEFORE IMPACTING
OUR MARINE ZONES LATE WEDNESDAY INTO THURSDAY. HEADLINES MAY VERY
WELL NOT EVEN BE NEEDED WITH THIS SYSTEM. OTHERWISE...HIGH
PRESSURE MAY BRING QUIET WINDS AND SEAS TO THE WATERS ONCE AGAIN
LATE NEXT WEEK. /NEUMAN

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...RED FLAG WARNING UNTIL 5 AM PDT TUESDAY FOR ZONE 602-ZONE 603-
     ZONE 604-ZONE 605-ZONE 606-ZONE 607-ZONE 608.

WA...RED FLAG WARNING UNTIL 5 AM PDT TUESDAY FOR ZONE 604-ZONE 660.

PZ...NONE.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA    
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON 
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS 
COMMONLY REFERRED TO AS THE FORECAST AREA AS THE FORECAST AREA.



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