500
FNUS72 KKEY 131918
FWSKEY
SPOT FORECAST FOR BIG PINE KEY 9.2...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE KEY WEST FL
318 PM EDT FRI OCT 13 2023
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (305) 295-1316 EXT 3, IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
WIND MAGNITUDES ON SATURDAY WILL BE VERY SIMILAR TO TODAY,
ALTHOUGH LOOK FOR WINDS TO TURN FROM SOUTHWEST TO WEST JUST AFTER
NOON. MID AND UPPER LEVEL CLOUD COVER WILL INCREASE AFTER SUNRISE,
WHICH MAY TEMPER THE AFTERNOON HIGH TEMPERATURES. LOW LEVEL
MOISTURE WILL BE ON THE INCREASE, SO THE AFTERNOON CUMULUS
ACCUMULATING ALONG THE ISLAND CHAIN WILL BE A LITTLE THICKER. THE
VERTICAL PROFILE SATURDAY AFTERNOON WILL BE SUPPORTIVE OF
AFTERNOON SHOWERS FORMING ALONG AND IN THE LEE OF BIG PINE. A COLD
FRONT WILL APPROACH AND PUSH THROUGH THE KEYS SUNDAY EVENING.
WINDS WILL INCREASE AHEAD OF THE FRONT ON SUNDAY, WITH COOLER AND
DRIER BREEZES SUNDAY NIGHT AND MONDAY.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF
SHOWERS.
CHANCE OF PCPN......30 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........68 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 6 TO 7 MPH.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 8 MPH.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....WEST AROUND 14 MPH.
DISPERSION INDEX....29 INCREASING TO 50.
TIME (EDT) 8 AM 10 AM NOON 2 PM 4 PM
SKY COVER.......PCLDY PCLDY PCLDY PCLDY PCLDY
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........
CHC OF PCPN (%).30 30 30 30 30
LAL.............1 1 1 1 1
TEMP............82 88 90 91 90
RH..............88 72 70 68 71
20 FT WIND......SW 9 SW 9 SW 10 W 10 W 10
20 FT WIND GUST.13 13 14 14 14
EYE LEVEL WIND..SW 6 SW 6 SW 7 W 7 W 7
EYE LVL WND GST.9 9 10 10 10
MIX HGT (FT)....1400 2800 3700 3700 3500
TRANSPORT WIND..SW 14 SW 14 W 14 W 14 W 14
DISPERSION......25 41 50 51 52
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT). CHANCE OF
SHOWERS THROUGH THE NIGHT. SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING.
CHANCE OF PCPN......40 PERCENT.
LAL.................NO TSTMS UNTIL 2000, THEN 1-8 STRIKES.
MIN TEMPERATURE.....AROUND 80.
MAX HUMIDITY........94 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 7 TO 8 MPH.
WIND (20 FT)........WEST WINDS 8 TO 9 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS EARLY IN THE
EVENING.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
DISPERSION INDEX....36 DECREASING TO 22 EARLY IN THE EVENING, THEN
DECREASING TO 12 EARLY IN THE EVENING
INCREASING TO 20 AFTER 3 AM.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......PCLDY PCLDY PCLDY PCLDY PCLDY PCLDY
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ S CHC S CHC S CHC S CHC S CHC
CHC OF PCPN (%).30 40 40 40 40 40
LAL.............1 2 2 2 2 2
TEMP............89 84 83 82 81 81
RH..............73 82 89 91 89 91
20 FT WIND......W 10 W 10 W 10 W 10 W 10 W 10
20 FT WIND GUST.15 15 15 15 15 15
EYE LEVEL WIND..W 7 W 7 W 7 W 7 W 7 W 7
EYE LVL WND GST.11 11 11 11 11 11
MIX HGT (FT)....2800 2000 1600 1200 900 1200
TRANSPORT WIND..W 15 W 15 W 15 W 16 W 17 W 18
DISPERSION......36 10 8 12 16 18
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS.
CHANCE OF PCPN......50 PERCENT.
LAL.................1-8 STRIKES.
MAX TEMPERATURE.....AROUND 87.
MIN HUMIDITY........74 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 8 TO 10 MPH.
WIND (20 FT)........WEST WINDS 9 TO 12 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......3100 FT AGL.
TRANSPORT WINDS.....WEST 16 TO 21 MPH.
DISPERSION INDEX....31 INCREASING TO 47 EARLY IN THE MORNING, THEN
INCREASING TO 60 IN THE LATE MORNING AND EARLY
AFTERNOON DECREASING TO 47 LATE IN THE
AFTERNOON.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY COVER.......MCLDY MCLDY PCLDY PCLDY
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........S CHC S CHC S CHC S CHC
CHC OF PCPN (%).40 50 50 50
LAL.............2 2 2 2
TEMP............80 83 86 85
RH..............94 85 76 76
20 FT WIND......W 12G16 W 13G17 W 13G17 W 13G17
EYE LEVEL WIND..W 8G11 W 9G12 W 9G12 W 9G12
MIX HGT (FT)....1400 2000 3100 3100
TRANSPORT WIND..W 20 W 21 W 18 W 16
DISPERSION......27 51 62 49
FORECASTER...CLR
REQUESTED BY...GREG SUSZEK
TYPE OF REQUEST...PRESCRIBED
.TAG 2322276.1/KEY
.DELDT 10/13/23
.FORMATTERVERSION 2.0.0
.EMAIL GREG_SUSZEK@FWS.GOV
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