375
FNUS72 KKEY 131934
FWSKEY
SPOT FORECAST FOR BIG PINE KEY RX 3.1,3.2,4.1,4.2...US FISH AND WILDLIFE SERVICE
NATIONAL WEATHER SERVICE KEY WEST FL
334 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
WINDS WILL DECREASE LATE THIS AFTERNOON AND EVENING AND SHIFT TO
THE WEST, ONLY TO SHIFT BACK TO THE SOUTH-SOUTHWEST OVERNIGHT.
IF SKIES REMAIN CLEAR, THERE MAY BE SOME DECOUPLING OVERNIGHT
WHICH WOULD RESULT IN POORER DISPERSION AND HIGHER LVORI, NOT
EXPLICITLY ADVERTISED IN THE TABLE. 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.
REST OF TODAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
CHANCE OF PCPN......10 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........66 PERCENT.
EYE LEVEL WINDS.....WEST WINDS AROUND 6 MPH.
WIND (20 FT)........WEST WINDS AROUND 7 MPH.
MIXING HEIGHT.......3200 FT AGL.
TRANSPORT WINDS.....WEST AROUND 13 MPH.
DISPERSION INDEX....50.
TIME (EDT) 5 PM
SKY COVER.......MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE
TSTM COV........
CHC OF PCPN (%).10
LAL.............1
TEMP............90
RH..............67
20 FT WIND......W 8
20 FT WIND GUST.12
EYE LEVEL WIND..W 6
EYE LVL WND GST.8
MIX HGT (FT)....3200
TRANSPORT WIND..W 13
DISPERSION......50
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
CHANCE OF PCPN......10 PERCENT.
LAL.................NO TSTMS.
MIN TEMPERATURE.....AROUND 81.
MAX HUMIDITY........91 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 5 TO 6 MPH DECREASING TO SOUTHWEST
AROUND 4 MPH LATE IN THE EVENING, THEN SHIFTING
TO THE AROUND 5 MPH EARLY IN THE MORNING.
WIND (20 FT)........WEST WINDS 6 TO 7 MPH IN THE EVENING BECOMING
LIGHT, THEN BECOMING SOUTHWEST AROUND 6 MPH
EARLY IN THE MORNING.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
DISPERSION INDEX....35 DECREASING TO 3.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......MCLEAR PCLDY PCLDY PCLDY MCLEAR MCLEAR
WEATHER COV..... S CHC S CHC S CHC S CHC S CHC
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........
CHC OF PCPN (%).10 10 10 10 10 10
LAL.............1 1 1 1 1 1
TEMP............90 85 84 83 82 82
RH..............68 80 83 85 86 88
20 FT WIND......W 8 W 7 W 7 W 5 SW 5 SW 5
20 FT WIND GUST.12 9 9 7 7 7
EYE LEVEL WIND..W 6 W 5 W 5 W 4 SW 4 SW 4
EYE LVL WND GST.8 6 6 5 5 5
MIX HGT (FT)....2700 1500 1200 900 800 1100
TRANSPORT WIND..W 12 W 10 W 8 W 7 SW 8 SW 10
DISPERSION......35 4 1 3 4 3
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF SHOWERS
EARLY IN THE MORNING.
CHANCE OF PCPN......30 PERCENT.
LAL.................NO TSTMS.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........68 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 5 TO 7 MPH.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 8 MPH.
MIXING HEIGHT.......3800 FT AGL.
TRANSPORT WINDS.....WEST 13 TO 14 MPH.
DISPERSION INDEX....14 INCREASING TO 50.
TIME (EDT) 6 AM 9 AM NOON 3 PM
SKY COVER.......PCLDY PCLDY PCLDY PCLDY
WEATHER COV.....S CHC CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........
CHC OF PCPN (%).10 30 30 30
LAL.............1 1 1 1
TEMP............81 85 90 90
RH..............91 82 70 71
20 FT WIND......SW 7G9 SW 9G13 SW 10G14 W 10G14
EYE LEVEL WIND..SW 5G6 SW 6G9 SW 7G10 W 7G10
MIX HGT (FT)....1300 2000 3700 3600
TRANSPORT WIND..SW 13 SW 14 W 14 W 14
DISPERSION......10 33 50 52
FORECASTER...CLR
REQUESTED BY...BRIAN PIPPIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2322591.1/KEY
.DELDT 10/13/23
.FORMATTERVERSION 2.0.0
.EMAIL BRIAN_PIPPIN@FWS.GOV
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