917  
FNUS71 KPBZ 071125  
FWSPBZ  
 
SPOT FORECAST FOR RX301 TRAINING...USFWS  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
725 AM EDT THU JUN 7 2018  
 
FORECAST IS BASED ON IGNITION TIME OF 0600 EDT ON JUNE 07.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (412) 262-1485, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
DRY WEATHER IS EXPECTED THROUGH TONIGHT UNDER HIGH PRESSURE. WIND AND  
RH LEVELS SHOULD NOT BE TOO PROBLEMATIC FOR BURNING TODAY. PERIODIC  
RAIN CHANCES RETURN FRIDAY THROUGH PART OF THE WEEKEND  
WITH CROSSING LOW PRESSURE.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 72.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 6 MPH LATE IN  
THE MORNING.  
MIXING HEIGHT.......0-1000 FT AGL INCREASING TO 4100-4400 FT AGL.  
TRANSPORT WINDS.....WEST 0 TO 8 MPH.  
HAINES INDEX........3 TO 4...OR VERY LOW TO LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........39 31 23 28 33 38 34 30 26 25 25 24  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............41 43 46 51 55 62 65 67 69 71 72 72  
RH..............100 100 96 88 79 64 58 54 49 47 45 45  
20 FT WIND DIR..S S SW SW SW W W W W W W W  
20 FT WIND SPD..3 3 3 3 4 5 6 6 5 6 6 6  
20 FT WIND GUST.4 4 4 5 6 6  
MIX HGT (KFT)...0.1 0.1 0.2 1.0 2.1 3.0 3.4 3.6 3.8 4.1 4.4 4.4  
TRANSP WIND DIR.SW W W W W W W SW SW SW W W  
TRANSP WIND SPD.1 0 0 2 6 8 8 7 6 6 7 8  
HAINES INDEX....3 3 4 4 4 4 4 4 4 4 4 4  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
LAL.................NO TSTMS.  
MIN TEMPERATURE.....AROUND 53.  
MAX HUMIDITY........93 PERCENT.  
WIND (20 FT)........WEST WINDS AROUND 5 MPH EARLY IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......1900-3800 FT AGL DECREASING TO 200-1200 FT AGL  
IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 1 TO 8 MPH.  
HAINES INDEX........3 TO 5...OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........19 14 10 9 9 8 10 11 12 15 17 19  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
LAL.............1 1 1 1 1 1 1 1 1 1 1 1  
TEMP............71 69 67 63 60 58 57 56 56 55 54 53  
RH..............47 51 55 62 69 75 78 79 80 85 90 93  
20 FT WIND DIR..W W W W NW NW NW W W W SW SW  
20 FT WIND SPD..5 4 3 3 2 2 2 2 2 2 2 2  
20 FT WIND GUST.6 5 4  
MIX HGT (KFT)...3.8 2.8 1.9 1.2 0.7 0.3 0.2 0.3 0.3 0.3 0.2 0.2  
TRANSP WIND DIR.W W NW NW NW NW W W W W SW SW  
TRANSP WIND SPD.8 7 7 5 3 2 1 1 1 1 1 1  
HAINES INDEX....4 4 5 5 5 3 3 3 3 3 3 3  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
CHANCE OF PCPN......20 PERCENT.  
LAL.................NO TSTMS UNTIL 1300, THEN 1-8 STRIKES.  
MAX TEMPERATURE.....AROUND 78.  
MIN HUMIDITY........52 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING WEST AROUND 5 MPH LATE IN  
THE AFTERNOON, THEN BECOMING LIGHT LATE IN THE  
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED  
NEAR THUNDERSTORMS IN THE AFTERNOON.  
MIXING HEIGHT.......100-1900 FT AGL INCREASING TO 6100-6900 FT AGL.  
TRANSPORT WINDS.....WEST 0 TO 9 MPH INCREASING TO 7 TO 10 MPH IN  
THE AFTERNOON.  
HAINES INDEX........3 TO 4...OR VERY LOW TO LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........21 24 26 31 36 40 45 50 55 59 63 66  
WEATHER COV..... SCH SCH SCH SCH SCH  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH SCH SCH SCH  
CHC OF PCPN (%).0 0 0 10 10 10 10 20 20 20 20 20  
LAL.............1 1 1 1 1 1 1 2 2 2 2 2  
TEMP............54 57 61 66 70 74 76 77 78 78 77 77  
RH..............91 84 74 66 59 54 52 52 54 54 55 57  
20 FT WIND DIR..SW SW SW SW SW SW SW W W W W W  
20 FT WIND SPD..2 2 2 2 3 3 4 4 4 4 5 4  
20 FT WIND GUST. 4 5 5 5 5  
MIX HGT (KFT)...0.1 0.1 0.5 1.9 3.6 5.2 6.1 6.7 6.9 6.9 6.6 6.1  
TRANSP WIND DIR.SW S S SW W W W W W W W W  
TRANSP WIND SPD.1 0 1 3 6 9 9 10 9 9 8 7  
HAINES INDEX....3 3 4 4 4 4 4 4 4 4 4 4  
 

 
FORECASTER...CL  
REQUESTED BY...JOHN ASHCRAFT  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1811199.0/PBZ  
.EMAIL GCAHALAN@TNC.ORG  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab OH Page
The Nexlab PA Page
The Nexlab WV Page
The Nexlab MD Page Main Text Page