Suppression Forecast
Issued by NWS Salt Lake City, UT

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
000
FNUS75 KSLC 242245
FWSSLC

SPOT FORECAST FOR BARTHOLOMEW CANYON
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
445 PM MDT FRI OCT 24 2014

.DISCUSSION...THE LARGE SCALE PATTERN FORECAST REMAINS NEARLY THE
SAME FROM THIS MORNING WITH AN APPROACHING STORM SYSTEM RAMPING
WINDS UP ON SATURDAY AHEAD OF THE ASSOCIATED COLD FRONT SCHEDULED
FOR SUNDAY MORNING. A REINFORCING COLD FRONT WHICH WILL BE THE
STRONGER OF THE TWO FRONTS WILL MOVE ACROSS THE BURN SITE LATE
SUNDAY AFTERNOON OR EVENING. THE DETAILS OF THE WINDS ALOFT
ALTHOUGH MINOR AT FIRST LOOK MAY HAVE AN IMPACT ON YOUR WINDS AT
THE BURN SITE SATURDAY AFTERNOON. THE WINDS ALOFT AT ABOUT 10K FT
AGL ARE 240 DEGREES AT 15-20 KTS THIS AFTERNOON. THIS FLOW
PROBABLY IS SPLITTING AROUND THE PROVO PEAK RANGE AND LIKELY
CAUSING A LARGE EDDY AFFECT RESULTING IN THE NORTHERLY WINDS AT
PORTABLE 1 RAWS SITE.

THE WINDS SATURDAY AFTERNOON AT 10K FT AGL ARE FORECAST TO BE
200-210 DEGREES AT 20-25 KTS WHICH SHOULD HAVE A MUCH BETTER
CHANCE OF FLOWING UP THE LEFT FORK OF HOBBLE CREEK RESULTING IN
SOUTHEAST WINDS TO PREVAIL SATURDAY. BELIEVE WINDS WILL DECOUPLE
OVER NIGHT WITH THE TERRAIN DRIVING THE WINDS DOWNSLOPE. WINDS ARE
EXPECTED TO INCREASE FROM THE SOUTHEAST AT 6-10 MPH WITH GUSTS TO
15 MPH BETWEEN 1000 AND 1200 SATURDAY. AFTER 1300 SOUTH SOUTHEAST
WINDS AT 10-15 MPH WITH GUSTS TO 20-25 MPH.

PRECIPITATION LOOKS TO BE VERY MINIMAL WITH THE INCOMING STORM.
THE BEST CHANCE FOR MEASURABLE PRECIPITATION WILL BE SUNDAY
EVENING WITH LESS THAN 0.10 OF AN INCH EXPECTED.

.TONIGHT...
  LAL.................1.
  HAINES INDEX........4 ..LOW.
  SKY/WEATHER.........CLEAR (0-5 PERCENT CLOUD COVER).
  MIN TEMPERATURE.....43-45.
  MAX HUMIDITY........68-70 PERCENT.
  WINDS - 20-FOOT.....NORTHWEST WINDS 5-8 MPH DECREASING TO 5 MPH
                      IN THE LATE EVENING AND OVERNIGHT.

.SATURDAY...
  LAL.................1.
  HAINES INDEX........3 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY SUNNY (5-15 PERCENT CLOUD COVER).
  MAX TEMPERATURE.....70-72.
  MIN HUMIDITY........23-25 PERCENT.
  WINDS - 20-FOOT.....SOUTHEAST WINDS 6-10 MPH AFTER 1000 INCREASING
                      TO 10-15 MPH WITH GUSTS TO 20-25 MPH AFTER 1300.

.OUTLOOK FOR SUNDAY...
  LAL.................1.
  HAINES INDEX........2 ..VERY LOW.
  CLEARING INDEX......1000+.
  SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT CLOUD COVER). A
                      SLIGHT CHANCE OF SHOWERS IN THE
                      MORNING...THEN A CHANCE OF SHOWERS IN THE
                      LATE AFTERNOON.
  MAX TEMPERATURE.....53-55.
  MIN HUMIDITY........46-48 PERCENT.
  WINDS - 20-FOOT.....SOUTHWEST WINDS 10 MPH. EDDY AFFECTS POSSIBLE
                      DUE TO PROVO PEAK RIDGE INFLUENCING WINDS.



FORECASTER...STRUTHWOLF
REQUESTED BY...ALLEN BRIGGS
REASON FOR REQUEST...PRESCRIBED
.TAG 20141024.BARTH.01/SLC

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.