669  
FNUS52 KKEY 171026  
FWFKEY  
 
FIRE WEATHER PLANNING FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
626 AM EDT TUE OCT 17 2017  
   
DISCUSSION
 
 
CLOUD COVER AND RAIN CHANCES WILL INCREASE THIS AFTERNOON AND  
TONIGHT. ISOLATED LIGHTNING STRIKES WILL BE POSSIBLE AS WELL.  
LIGHT AND VARIABLE BREEZES WILL TRANSITION TO NORTHEAST 10 MPH.  
RELATIVE HUMIDITY VALUES WILL REMAIN SEASONABLY HIGH. THE  
DISPERSION INDEX WILL DROP BELOW 20 AGAIN TONIGHT, BUT IT WILL BE  
HIGHER THAN DURING THE LAST FEW NIGHTS.  
 
FLZ076>078-181130-  
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-  
INCLUDING THE CITIES OF KEY LARGO, MARATHON, AND KEY WEST  
626 AM EDT TUE OCT 17 2017  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
CHANCE PRECIP (%) 30 50 50  
WEATHER TYPE TSTMS TSTMS TSTMS  
TEMP 87 76 86  
RH % 65 91 72  
20FT WIND AM(MPH) NE 6 NE 10  
20FT WIND PM(MPH) E 8 NE 11 NE 10  
PRECIP DURATION 2 2  
PRECIP BEGIN 6 PM CONTINUING  
PRECIP END CONTINUING CONTINUING  
PRECIP AMOUNT 2 2  
LAL 2 2 2  
MIXING HGT(FT-AGL) 4200 900 3600  
TRANSPORT WND(MPH) NE 12 NE 14 E 13  
DISPERSION INDEX 33 18 34  
MAX LVORI 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST  
WINDS NEAR 10 MPH. CHANCE OF RAIN 40 PERCENT.    
THURSDAY
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS IN THE MID 80S. NORTHEAST WINDS  
NEAR 10 MPH. CHANCE OF RAIN 30 PERCENT.    
THURSDAY NIGHT
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 70S. NORTHEAST  
WINDS 10 TO 15 MPH. CHANCE OF RAIN 30 PERCENT.    
FRIDAY THROUGH MONDAY
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE MID 80S. LOWS  
IN THE UPPER 70S. EAST WINDS NEAR 15 MPH, BECOMING SOUTHEAST  
SUNDAY NIGHT AND MONDAY. CHANCE OF RAIN 30 PERCENT EACH DAY AND  
NIGHT.  
 

 
 
KASPER  
 
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