Suppression Forecast
Issued by NWS Portland, OR

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FNUS76 KPQR 191430
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Spot Forecast for RX-130 May...Scappoose Fire District
National Weather Service Portland OR
730 AM PDT Sun May 19 2019

Forecast is based on ignition time of 0800 PDT on May 19.
If conditions become unrepresentative...contact the National Weather
Service Portland, Oregon office.

.DISCUSSION...Unsettled conditions will persist today. An area of
rain that moved across northwest Oregon overnight was moving
northwest this morning. Expect a threat of light rain over the
burn area through the morning, but primarily until 0900. Showers
develop in the afternoon and are expected to persist through
the evening. There will be a break in the precipitation tonight
through Monday morning, but another system moves into Northwest
Oregon Monday evening.

.REST OF TODAY...

Sky/weather.........Cloudy. Showers, decreasing through the
                    morning. A chance of showers late afternoon.
CWR.................20 percent decreasing to less than 10 percent
                    late afternoon.
LAL.................1.
Max temperature.....mid 60s.
Min humidity........60-65 percent.
Wind (20 ft)........
 Slope/valley.......Variable to 5 mph becoming Northwest 5 to 10 mph
                    in the afternoon.
 Ridgetop...........West to Northwest 5 to 10 mph.
Mixing height.......5500 ft AGL.
Transport winds.....Northwest 6 to 10 mph.
Haines Index(High)..2 or very low.
Haines Index (Mid)..3 or very low.
Rainfall amount.....Up to an additional 0.10 inches.

TIME (PDT)      8 AM     10 AM    NOON     2 PM     4 PM

Temp............54        57      60        62       65
RH..............90        75      66        60       60
20 ft wind......NW 1    NW 0-3   NW 1-4   NW 4-8   NW 5-10
20 ft wind gust.
Mix hgt (ft)....2500     3500    4500     5300      5500
Transport wind..W 7    W 8    W 6    W 6    NW 7
Haines index....2      2      2      2      2
Haines mid lvl..3      3      3      3      3

.TONIGHT...

Sky/weather.........Mostly cloudy. A chance of showers in the
                    evening, then a slight chance of showers.
CWR.................Less than 10 percent.
LAL.................1.
Min temperature.....50-55.
Max humidity........87-95 percent.
Wind (20 ft)........
 Slope/valley.......Northwest 5 to 10 mph in the evening
                    becoming variable less than 5 mph.
 Ridgetop...........West 4 to 8 mph.
Mixing height.......Lowering to 500 ft AGL.
Transport winds.....Northwest 5 to 10 mph, becoming light
                    by midnight.
Haines Index(High)..2 or very low.
Haines Index (Mid)..3 to 4 or very low to low.
Rainfall amount.....Trace to 0.05 inches.

$$
Forecaster...Weishaar
Requested by...Chief Jeff Pricher
Type of request...PRESCRIBED
.TAG 1909587.0/PQR
.DELDT 05/19/19
.FormatterVersion 1.0.26
.EMAIL jpricher@srfd.us



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