052  
FNUS73 KJKL 211432  
FWSJKL  
 
SPOT FORECAST FOR MARSH...USFS  
NATIONAL WEATHER SERVICE JACKSON, KY  
1032 AM EDT SAT APR 21 2018  
 
FORECAST IS BASED ON REQUEST TIME OF 1100 EDT ON APRIL 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
HIGH PRESSURE WILL CONTINUE TO KEEP DRY CONDITIONS IN  
PLACE TODAY, WITH MINIMUM RH VALUES DROPPING TO AROUND 25 PERCENT  
THIS AFTERNOON AS NORTHEAST TO SOUTHEAST WINDS REMAIN LIGHT AT LESS  
THAN 10 MPH. MORE MOIST CONDITIONS WILL RETURN ON SUNDAY AS MINIMUM  
RH VALUES GENERALLY REMAIN IN THE 35-40 PERCENT RANGE. RAIN WILL  
BECOME INCREASINGLY POSSIBLE SUNDAY NIGHT INTO EARLY NEXT WEEK.  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
CHANCE OF PCPN......0 PERCENT.  
TEMPERATURE.........58 AT REQUEST...MAX 72.  
RH..................37 PERCENT AT REQUEST...MIN 25 PERCENT.  
DEWPOINT............33 INCREASING TO 36 LATE IN THE AFTERNOON.  
WIND (20 FT)........WINDS EAST AT 3 MPH AT REQUEST...OTHERWISE  
LIGHT WINDS BECOMING EAST AROUND 5 MPH LATE IN  
THE MORNING.  
TRANSPORT WINDS.....SOUTHWEST 2 TO 6 MPH.  
VENT RATE...........POOR /11100 KNOT-FT/ AT REQUEST. MAX...FAIR  
/21700 KNOT-FT/.  
LVORI...............3.  
ADI.................16 INCREASING TO 28 THIS AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH AT REQUEST...MAX 5.  
 
TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........14 17 20 22 22 23 23  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CCH OF PCPN (%).0 0 0 0 0 0 0  
TEMP............58 63 66 68 70 72 72  
DEWPOINT........33 34 34 35 35 36 36  
RH..............39 34 30 29 27 27 27  
20 FT WIND DIR..E E SE SW S SE NE  
20 FT WIND SPD..2 2 2 2 2 2 2  
20 FT WIND GUST.5 5 5 5 5 5 5  
RIDGE WIND DIR..E E SE SW S SE NE  
RIDGE WIND SPD..5 5 0 5 5 5 0  
TRANSP WIND DIR.SE S SW SW SW SW S  
TRANSP WIND SPD.6 6 6 5 3 2 2  
LVORI...........2 2 2 2 2 2 2  
ADI.............16 21 28 28 23 17 15  
HAINES INDEX....5 5 4 4 4 3 3  
VRATE KT-FT/100011 15 21 22 18 13 11  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.  
CHANCE OF PCPN......0 PERCENT.  
TEMPERATURE.........MIN 45.  
RH..................MAX 82 PERCENT.  
DEWPOINT............38.  
WIND (20 FT)........LIGHT WINDS.  
TRANSPORT WINDS.....SOUTH AROUND 2 MPH SHIFTING TO THE EAST 3 TO 5  
MPH.  
VENT RATE...........POOR TO FAIR (700-18800 KNOT-FT).  
LVORI...............3.  
ADI.................17 DECREASING TO 2.  
HAINES INDEX........2 TO 4 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%).........25 28 39 50 62 66  
WEATHER COV.....  
WEATHER TYPE....NONE NONE NONE NONE NONE NONE  
TSTM COV........  
CCH OF PCPN (%).0 0 0 0 0 0  
TEMP............71 66 59 53 49 47  
DEWPOINT........37 38 39 39 39 38  
RH..............29 36 47 59 68 71  
20 FT WIND......NE 2 NE 2 NE 2 NE 2 NE 2 E 2  
20 FT WIND GUST.5 5 10 10 5 5  
RIDGETOP WIND...NE 5 NE 5 NE 5 NE 5 NE 0 E 5  
TRANSPORT WIND..S 2 E 5 NE 5 NE 5 E 3 E 3  
LVORI...........2 2 2 3 3 3  
ADI.............17 2 2 2 2 2  
HAINES INDEX....3 3 2 3 4 4  
VRATE KT-FT/100013 19 6 1 1 1  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS  
EARLY IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
TEMPERATURE.........MAX 68.  
RH..................MIN 40 PERCENT.  
DEWPOINT............41 INCREASING TO 44 LATE IN THE AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 6 MPH IN THE  
AFTERNOON.  
TRANSPORT WINDS.....EAST 2 TO 9 MPH INCREASING TO 13 TO 15 MPH LATE  
IN THE AFTERNOON.  
VENT RATE...........POOR TO GOOD (500-30400 KNOT-FT).  
LVORI...............3.  
ADI.................5 INCREASING TO 31.  
HAINES INDEX........3 TO 4 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6 AM 9 AM NOON 3 PM  
SKY (%).........71 78 83 86  
WEATHER COV..... S CHC  
WEATHER TYPE....NONE NONE NONE RNSHWR  
TSTM COV........  
CCH OF PCPN (%).0 0 10 20  
TEMP............45 50 62 67  
DEWPOINT........39 42 43 43  
RH..............79 74 50 42  
20 FT WIND......E 2G5 E 2G5 E 3G5 E 4G5  
RIDGETOP WIND...E 0 E 5 E 5 E 5  
TRANSPORT WIND..E 3 SE 2 SE 5 E 9  
LVORI...........4 3 2 2  
ADI.............1 2 6 15  
HAINES INDEX....4 3 3 3  
VRATE KT-FT/10001 1 4 11  
 

 
 
FORECASTER...DJ  
REQUESTED BY...KAREN  
TYPE OF REQUEST...WILDFIRE  
.TAG 1807265.0/JKL  
.EMAIL KYDBFE1DISPATCH@FS.FED.US  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab KY Page Main Text Page