FNUS76 KPQR 060811
FWSPQR

SPOT FORECAST FOR NASTY FIRE...USFS MH
NATIONAL WEATHER SERVICE PORTLAND OR
111 AM PDT TUE SEP 6 2011

FORECAST IS BASED ON REQUEST TIME OF 1431 PDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY EVENING...

.DISCUSSION...TODAY WILL BE THE LEAST CRITICAL FIRE WEATHER DAY
DURING THE NEXT 5 TO 7 DAYS. A DRY AND WARM AIR MASS WILL BE OVER
THE FIRE TODAY WITH WEAK ONSHORE LOW LEVEL FLOW. FIRE WEATHER
CONCERNS WILL BECOME MORE PRONOUNCED TONIGHT AS ANOTHER SURFACE
THERMAL TROUGH DEVELOPS ALONG THE SOUTH OREGON COAST. THIS THERMAL
TROUGH WILL GRADUALLY MIGRATE NORTH AND EXPAND ACROSS THE FIRE ON
WEDNESDAY. THIS WILL ALLOW LIGHT OFFSHORE WINDS TO DEVELOP LATE
TONIGHT. WINDS WILL BECOME MORE ERRATIC WEDNESDAY AFTERNOON WITH
THE THERMAL TROUGH IN THE VICINITY OF THE FIRE. THUS...A FIRE
WEATHER WATCH FOR DRY AND UNSTABLE CONDITIONS WILL BE IN EFFECT
FOR THE FIRE AREA BEGINNING TONIGHT. THE SECOND ISSUE CONCERNS THE
POSSIBILITY OF DRY THUNDERSTORMS. OVERALL CONFIDENCE IS LOW
REGARDING COVERAGE AND TIMING BUT THERE IS ENOUGH CONFIDENCE TO
MENTION THE THREAT IN THE OREGON CASCADE ZONES THURSDAY. THE WATCH
WILL CONTINUE THROUGH THURSDAY EVENING...FOR A COMBINATION OF DRY
AND UNSTABLE CONDITIONS AND THE THREAT OF LIGHTNING.


CHANCE OF WETTING RAIN (CWR) 0.25 INCHES OR GREATER.
FORECAST WINDS ARE 10 MINUTE AVERAGES 20 FT ABOVE VEGETATION.
THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS.


.TODAY...

MAX TEMPERATURE.....79-82.
MIN HUMIDITY........29-33 PERCENT.
WIND (20 FT)........UPSLOPE 2 TO 5 MPH...BECOMING NORTHWEST 4 TO
                    7 MPH AFTER 1300.
SKY/WEATHER.........SUNNY.


TIME (PDT)      6 AM    8 AM    10 AM   NOON   2 PM   4 PM
TEMP............54      56      63      75     77     80
RH..............59      58      47      35     33     30
20 FT WIND......UPSLP 2 UPSLP 3 UPSLP 3 SSE 3  W 5    NW 7
   MAX GUST.....                               9      11


.TONIGHT...

MIN TEMPERATURE.....54-58.
MAX HUMIDITY........42-48 PERCENT.
WIND (20 FT)........NORTH TO NORTHWEST 3 TO 7 MPH...BECOMING EAST
                    2 TO 6 MPH AFTER 2300.
SKY/WEATHER.........CLEAR.


TIME (PDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
TEMP............79     73     68     64     61     59
RH..............26     31     36     39     42     43
20 FT WIND......NW 6   NW 3   NW 2   E 2    E 3    E 4
   MAX GUST.....10     6


.WEDNESDAY...

MAX TEMPERATURE.....83-86.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........EAST TO NORTHEAST 2 TO 6 MPH...BECOMING NORTH
                    AFTER 1500.
SKY/WEATHER.........SUNNY.

TIME (PDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
TEMP............58     59     67     75     82     85
RH..............45     44     36     28     25     20
20 FT WIND......E 3    E 4    E 5    NE 5   NE 5   N 6
   MAX GUST.....5      6      8      8      8      10

$$
FORECASTER...COLLINS
REQUESTED BY...SHEILA BARRY
REASON FOR REQUEST...WILDFIRE
.TAG 20110905.NASTY.01/PQR