461  
FNUS71 KAKQ 030928  
FWSAKQ  
 
SPOT FORECAST FOR NASSAWANGO- BEAR SWAMP...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE WAKEFIELD VA  
528 AM EDT TUE JUN 3 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON JUNE 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE AT 757-899-5734.  
   
DISCUSSION  
 
HIGH PRESSURE SHIFTS OFFSHORE TODAY WITH WARMER TEMPERATURES  
EXPECTED. MOSTLY SUNNY WITH A HAZY SKY DUE TO SMOKE ALOFT FROM  
CANADIAN WILDFIRES. REMAINING RELATIVELY DRY TODAY AND WELL MIXED  
WITH MINIMUM RH VALUES OF 30-35%. A WEST WIND OF 5 TO 10 MPH IS  
EXPECTED TO DEVELOP LATER THIS MORNING AND CONTINUE INTO THE  
AFTERNOON, BEFORE BECOMING SOUTH AND THEN SOUTHEAST AFTER 4 TO 5  
PM.  
   
REST OF TODAY  
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 82.  
MIN HUMIDITY........34 PERCENT.  
WIND (20 FT)........WEST WINDS 5 TO 10 MPH BECOMING SOUTH LATE  
IN THE AFTERNOON.  
MIXING HEIGHT.......4200 FT AGL.  
TRANSPORT WINDS.....WEST 6 TO 12 MPH.  
SMOKE DISPERSAL.....FAIR (14834 MPH-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (32429 MPH-FT) IN THE  
AFTERNOON.  
LVORI...............2.  
ADI.................19 TO 41.  
 
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........3 2 3 2 2 1 2 2 1  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0  
TEMP............67 72 76 78 80 81 81 82 80  
RH..............65 51 43 39 36 35 35 34 36  
20 FT WIND DIR..W W W W W W W SW S  
20 FT WIND SPD..3 4 4 4 4 4 4 5 5  
20 FT WIND GUST.5 6 6 6 7 7 8 8 9  
MIX HGT (KFT)...1.3 2.1 2.9 3.3 3.8 4.2 4.1 3.9 3.7  
TRANSP WIND DIR.W W W W W W W SW SW  
TRANSP WIND SPD.12 10 9 8 7 6 7 8 9  
LVORI...........3 2 1 1 1 1 1 1 1  
ADI.............19 28 34 34 33 33 35 39 41  
VRATE MPH-FT/1K.14 21 26 26 25 26 27 30 32  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR  
   
TONIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
MIN TEMPERATURE.....AROUND 60.  
MAX HUMIDITY........84 PERCENT.  
WIND (20 FT)........SOUTH WINDS 5 TO 6 MPH IN THE EVENING AND  
OVERNIGHT BECOMING LIGHT.  
MIXING HEIGHT.......300 FT AGL.  
TRANSPORT WINDS.....SOUTH 7 TO 9 MPH.  
SMOKE DISPERSAL.....FAIR (22655 MPH-FT) EARLY IN THE EVENING  
DECREASING TO POOR (2300 MPH-FT) LATE IN THE  
NIGHT.  
LVORI...............4.  
ADI.................3 TO 29.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........1 2 2 2 3 4 4 6 3 3 5 5  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............80 78 73 69 66 65 64 63 62 62 62 60  
RH..............36 40 48 57 63 65 65 70 70 72 75 84  
20 FT WIND DIR..S S S S S S S S S S S SW  
20 FT WIND SPD..5 6 6 6 5 5 5 5 5 5 4 4  
20 FT WIND GUST.9 11 11 11 9 8 8 8 8 8 6 6  
MIX HGT (KFT)...2.6 1.5 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3  
TRANSP WIND DIR.SW S S S S S S S S S S S  
TRANSP WIND SPD.9 8 8 8 7 7 7 8 8 7 7 7  
LVORI...........2 2 2 3 3 3 3 3 3 3 4 5  
ADI.............29 4 4 3 3 3 3 3 4 3 3 3  
VRATE MPH-FT/1K.22 12 2 2 2 2 2 2 2 2 2 2  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
CHANCE OF PCPN......0 PERCENT.  
MAX TEMPERATURE.....AROUND 83.  
MIN HUMIDITY........43 PERCENT.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 9 MPH IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......3800 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 17 MPH.  
SMOKE DISPERSAL.....POOR (3679 MPH-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (55774 MPH-FT) IN THE  
AFTERNOON.  
LVORI...............3.  
ADI.................4 EARLY IN THE MORNING INCREASING TO 68 IN THE  
AFTERNOON.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........5 2 1 2 2 4 3 3 2 3 3 4  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............62 63 67 73 76 79 80 82 83 82 82 81  
RH..............78 81 75 64 58 52 49 46 43 44 43 44  
20 FT WIND DIR..SW SW SW SW SW SW SW S S S S S  
20 FT WIND SPD..4 4 4 5 6 7 7 8 8 8 9 9  
20 FT WIND GUST.6 6 6 8 9 11 12 13 14 14 15 15  
MIX HGT (KFT)...0.4 0.5 0.6 1.2 1.9 2.6 3.0 3.4 3.8 3.6 3.4 3.2  
TRANSP WIND DIR.S SW SW SW SW SW SW SW S S S S  
TRANSP WIND SPD.9 12 13 13 12 10 10 12 13 15 16 17  
LVORI...........4 4 4 2 2 1 1 1 1 1 1 1  
ADI.............4 11 13 20 28 33 39 47 57 63 68 68  
VRATE MPH-FT/1K.3 5 7 15 21 26 31 38 47 52 55 54  
VENTRATE CAT....PR PR PR PR PR PR PR PR FR FR FR FR  
 
 
FORECASTER...ZIMMERMAN  
REQUESTED BY...GABRIEL CAHALAN  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2515258.0/AKQ  
.DELDT 06/03/25  
.FORMATTERVERSION 2.0.0  
.EMAIL GCAHALAN@TNC.ORG  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab VA Page
The Nexlab NC Page
The Nexlab MD Page
Main Text Page