201
FNAK71 PAFC 202141
FWSAER
SPOT FORECAST FOR BREATH OF LIFE RUN...FOREST SERVICE
NATIONAL WEATHER SERVICE ANCHORAGE AK
141 PM AKDT THU AUG 20 2026
FORECAST IS BASED ON FORECAST START TIME OF 0000 AKDT ON AUGUST 21.
DISCUSSION
VERY LIGHT, ON AND OFF RAIN IS EXPECTED THROUGH FRIDAY EVENING AS
A WEAK SYSTEM SOUTH OF THE KENAI MOVES EAST TOWARDS YAKUTAT.
RAINFALL TOTALS BETWEEN NOW AND THE START OF THE RACE LOOK LIGHT
(0.1 TO 0.2 IN). ON SATURDAY, A NORTH TO SOUTH ORIENTED FRONT WILL
SPREAD LIGHT TO MODERATE RAIN OVER THE AREA STARTING AROUND
SUNRISE AND CONTINUING THROUGH MOST OF THE DAYLIGHT HOURS.
RAINFALL WILL BE THE HEAVIEST BETWEEN 9AM AND 1PM. AS TO BE
EXPECTED IN COMPLEX TERRAIN, THE WEATHER WILL DIFFER BETWEEN
PRIMROSE AND LOST LAKE. WITH THE SOUTH TO NORTH WIND (SOUTHERLY
WINDS) COMING INTO RESURRECTION BAY, WINDS NEAR THE LAKE AND ON
THE ALPINE TUNDRA PORTION OF THE COURSE MAY BE GUSTING UP TO 20-30
MPH AT THE HIGH END. THE NORTH SIDE OF THE COURSE IS LIKELY TO BE
MORE SHELTERED FROM WINDS AND PRECIPITATION. IF THE RACE ENDS ON
THE SEWARD SIDE, HEAVIER RAIN IS EXPECTED THERE. ONCE THE RAIN
STARTS ON SATURDAY, ANY FOG THAT DEVELOPS WILL MIX OUT, BUT CLOUD
CEILINGS WILL LIKELY BE BETWEEN 1500 AND 2500 FT, WITH THE HIGHER
CEILINGS MORE LIKELY ON THE PRIMROSE SIDE OF THE COURSE.
PROBABILISTIC PRECIPITATION FORECAST:
QPF > 0.25" = 74%
QPF > 0.50" = 42%
QPF > 1.00" = 8%
REST OF TONIGHT
SKY/WEATHER.........CLOUDY (90-100 PERCENT). WIDESPREAD RAIN
SHOWERS OVERNIGHT, THEN NUMEROUS RAIN SHOWERS
OVERNIGHT.
CHANCE OF PCPN......80 PERCENT.
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........97 PERCENT.
SURFACE WINDS (MPH).LIGHT WINDS.
TRANSPORT WINDS.....SOUTH 6 TO 7 MPH.
RAINFALL AMOUNT.....0.04 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........6100-6600 FT.
CEILING (KFT).......2000-3000FT
VISIBILITY..........2-6 MILES
TIME (AKDT) MIDNGT 3 AM
SKY (%).........92 93
WEATHER COV.....WIDSPD NUMRUS
WEATHER TYPE....RNSHWR RNSHWR
CHC OF PCPN (%).80 70
TEMP............47 47
RH..............97 96
SURFACE WIND....S 3 S 2
TRANSPORT WIND..S 7 S 7
SNOW LVL (KFT)..6.6 6.3
CEILING (KFT)...2000-3000FT
VISIBILITY (SM).2-6 MILES
FRIDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) THEN BECOMING MOSTLY
CLOUDY (65-75 PERCENT). NUMEROUS RAIN SHOWERS
EARLY IN THE MORNING, THEN SCATTERED RAIN
SHOWERS IN THE LATE MORNING AND EARLY
AFTERNOON. CHANCE OF RAIN LATE IN THE
AFTERNOON.
CHANCE OF PCPN......70 PERCENT.
MAX TEMPERATURE.....AROUND 51.
MIN HUMIDITY........87 PERCENT.
SURFACE WINDS (MPH).LIGHT WINDS.
TRANSPORT WINDS.....SOUTH 3 TO 7 MPH.
RAINFALL AMOUNT.....0.05 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........6000-6300 FT.
CEILING (KFT).......2000-3000FT
VISIBILITY..........2-6 MILES
TIME (AKDT) 6 AM 9 AM NOON 3 PM
SKY (%).........95 91 82 66
WEATHER COV.....NUMRUS NUMRUS SCTTRD SCTTRD
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
CHC OF PCPN (%).70 60 40 40
TEMP............47 47 48 50
RH..............97 96 91 87
SURFACE WIND....W 1 NW 1 SE 1G3 SE 2
TRANSPORT WIND..S 6 S 3 S 5 S 6
SNOW LVL (KFT)..6.1 6.0 6.0 6.1
CEILING (KFT)...2000-3000FT
VISIBILITY (SM).2-6 MILES
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
IN THE EVENING AND OVERNIGHT, THEN RAIN LIKELY
AFTER 3 AM.
CHANCE OF PCPN......60 PERCENT.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........98 PERCENT.
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTH 6 TO 7 MPH.
TRANSPORT WINDS.....SOUTH 7 TO 9 MPH.
RAINFALL AMOUNT.....0.04 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........6000-6300 FT.
CEILING (KFT).......2000-3000FT
VISIBILITY..........>6 MILES
TIME (AKDT) 6 PM 9 PM MIDNGT 3 AM
SKY (%).........76 78 82 87
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RAIN RAIN RAIN RAIN
CHC OF PCPN (%).50 40 40 40
TEMP............49 47 46 46
RH..............88 93 96 96
SURFACE WIND....SE 3 S 6G8 S 7G9 S 7G9
TRANSPORT WIND..S 7 S 7 SE 7 S 8
SNOW LVL (KFT)..6.3 6.3 6.3 6.2
CEILING (KFT)...2000-3000FT
VISIBILITY (SM).>6 MILES
SATURDAY
SKY/WEATHER.........CLOUDY (90-100 PERCENT). RAIN LIKELY EARLY IN
THE MORNING, THEN RAIN IN THE LATE MORNING AND
EARLY AFTERNOON. RAIN LIKELY LATE IN THE
AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
MAX TEMPERATURE.....AROUND 48.
MIN HUMIDITY........89 PERCENT.
SURFACE WINDS (MPH).SOUTHEAST WINDS 6 TO 8 MPH.
TRANSPORT WINDS.....SOUTHEAST 8 TO 10 MPH.
RAINFALL AMOUNT.....0.31 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
SNOW LEVEL..........5400-6000 FT.
CEILING (KFT).......2000-3000FT
VISIBILITY..........>6 MILES
TIME (AKDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........93 95 95 95 100 100 100 100 100 100 100 100
WEATHER COV.....LKY LKY LKY LKY DEF DEF DEF DEF DEF DEF LKY LKY
WEATHER TYPE....RN RN RN RN RN RN RN RN RN RN RN RN
CHC OF PCPN (%).60 70 70 70 80 80 80 80 80 80 80 80
TEMP............46 45 46 46 46 46 46 46 46 47 47 47
RH..............97 98 97 97 96 95 93 92 91 90 89 90
SURFACE WND DIR.SE SE SE SE SE SE SE SE SE SE SE SE
SURFACE WND SPD.7 8 8 8 8 8 8 8 8 8 6 6
SURFACE WND GST.8 9 9 9 10 10 10 10 10 10 8 8
TRANSP WIND DIR.SE SE SE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.9 9 9 9 9 9 9 10 10 10 8 8
SNOW LVL (KFT)..6.0 5.8 5.8 5.8 5.5 5.5 5.5 5.5 5.5 5.5 5.4 5.4
CEILING (KFT)...2000-3000FT
VISIBILITY (SM).>6 MILES
FORECASTER...JONES
REQUESTED BY...MONIKA ADAM
TYPE OF REQUEST...OTHER
.TAG 2620024.0/AER
.DELDT 08/20/26
.FORMATTERVERSION 2.0.0
.EMAIL MONIKA.C.ADAM@USDA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page