112  
FNUS76 KPQR 301512  
FWSPQR  
 
SPOT FORECAST FOR TYRRELL SEED ORCHARD 2ND AERIAL SPRAY...BLM  
NATIONAL WEATHER SERVICE PORTLAND OR  
812 AM PDT TUE APR 30 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 0800 PDT ON APRIL 30.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A LOW PRESSURE TODAY DROPPING SOUTHEASTWARD ACROSS  
THE REGION WILL PRODUCE PLENTY OF SHOWERS. HIGH PRESSURE WILL  
TEMPORARILY SHIFT OVER THE REGION TONIGHT INTO WEDNESDAY AND LEAD  
TO SHOWERS DECREASING QUICKLY THIS EVENING ACROSS THE REGION.  
CLEARING SKIES WILL BRING A 40-50% CHANCE FOR FOG AND/OR LOW  
CLOUDS TO DEVELOP TOWARDS DAYBREAK ON WEDNESDAY. ANY FOG OR LOW  
CLOUDS THAT DO DEVELOP SHOULD DISSIPATE BETWEEN 1000 AND 1200 ON  
WEDNESDAY. EXPECT LIGHT NORTH TO NORTHWEST WINDS WEDNESDAY  
AFTERNOON EVEN WHEN CLOUDS CLEAR.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS. A SLIGHT CHANCE  
OF THUNDERSTORMS AFTER 1300.  
CHANCE OF PCPN......90 PERCENT.  
MAX TEMPERATURE.....50-52.  
MIN HUMIDITY........60-65 PERCENT.  
DEWPOINT............39.  
SURFACE WINDS.......SOUTHWEST WINDS 10 TO 14 MPH.  
CEILING.............1500 FT IN THE MORNING BECOMING 3000 FEET  
IN THE AFTERNOON.  
VISIBILITY..........10.  
 
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EARLY EVENING.  
PATCHY FROST AND FOG LATE.  
CHANCE OF PCPN......30 PERCENT, MAINLY IN THE EVENING.  
MIN TEMPERATURE.....34-36.  
MAX HUMIDITY........95-100 PERCENT.  
DEWPOINT............38 DECREASING TO 35 EARLY IN THE MORNING.  
SURFACE WINDS.......WEST 6 TO 8 MPH IN THE EVENING BECOMING  
DRAINAGE LESS THAN 3 MPH AFTER 2000.  
CEILING.............4000 FEET IN THE EVENING TEMPORARILY CLEARING  
OVERNIGHT WITH A 40% CHANCE OF CEILINGS  
REFORMING IN THE 400 TO 800 FT RANGE LATE AS  
FOG AND LOW CLOUDS FORM.  
VISIBILITY..........10 MILES UNTIL LATE.  
 
   
WEDNESDAY
 
 
SKY/WEATHER.........PATCHY FOG AND LOW CLOUDS IN THE MORNING  
BECOMING PARTLY CLOUDY AFTER 1100. RAIN  
CHANCES DO NOT REALLY BEGIN TO INCREASE  
UNTIL WEDNESDAY EVENING.  
CHANCE OF PCPN......LESS THAN 10 PERCENT INCREASING TO 30 PERCENT  
AFTER 1700.  
MAX TEMPERATURE.....59-61.  
MIN HUMIDITY........40-45 PERCENT.  
DEWPOINT............36.  
SURFACE WINDS.......LIGHT WINDS BECOMING NORTH TO NORTHWEST 3-5 MPH  
AFTER 1200.  
CEILING.............A 40% CHANCE THEY WILL BE AS LOW AS 400-800 FT  
EARLY IN THE MORNING. EITHER WAY, CEILINGS  
WILL BECOME 4000 FEET OR HIGHER BY AFTERNOON.  
VISIBILITY..........A 40% CHANCE THAT VISIBILITIES WILL BE LESS THAN  
3 MILES. EITHER WAY, VISIBILITIES WILL BE  
10 MILES OR MORE AFTER 1100-1200.  
 

 
 
FORECASTER...NEUMAN  
REQUESTED BY...TONI MOLINA  
TYPE OF REQUEST...OTHER  
.TAG 2412789.0/PQR  
.DELDT 04/30/24  
.FORMATTERVERSION 2.0.0  
.EMAIL TMOLINA@BLM.GOV  
 
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