093
FNUS71 KAKQ 072248
FWSAKQ
SPOT FORECAST FOR SOUTH QUAY UNITS 3 AND 4...DCR NATURAL HERITAGE
NATIONAL WEATHER SERVICE WAKEFIELD VA
648 PM EDT TUE APR 7 2026
FORECAST IS BASED ON IGNITION TIME OF 1900 EDT ON APRIL 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE AT 757-899-5734.
DISCUSSION
DRY WEATHER WILL PERSIST THROUGH THIS EVENING WITH HIGH LEVEL CLOUDS SLOWLY PUSHING OFF
TO THE SE. RH VALUES WILL RISE THROUGH THE EVENING AS TEMPERATURES BEGIN TO COOL BUT AS
OF 18:45 (6:45PM) RH VALUES ARE 30-40%. WINDS REMAIN OUT OF THE NE AROUND 10MPH WITH GUSTS UPWARDS OF
15 MPH. HOWEVER, THROUGH THE EVENING EXPECT WINDS TO DECREASE BUT THEY WILL REMAIN OUT OF THE
NE AROUND 5MPH.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......4200 FT AGL.
TRANSPORT WINDS.....NORTHEAST 17 TO 22 MPH.
SMOKE DISPERSAL.....FAIR (19780 MPH-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (78315 MPH-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................8 EARLY IN THE MORNING INCREASING TO 93 IN THE
AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 2 2 3 3 4 11 18 25 24 24 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............39 39 41 44 48 50 52 54 55 55 56 55
RH..............59 62 62 55 46 42 41 38 37 37 35 37
20 FT WIND DIR..NE NE NE NE NE NE NE NE NE NE NE NE
20 FT WIND SPD..5 5 5 6 7 7 8 8 8 8 8 7
20 FT WIND GUST.11 11 12 14 14 14 15 15 15 15 15 14
MIX HGT (KFT)...1.2 1.7 2.3 2.7 3.2 3.6 3.8 4.0 4.2 4.1 4.1 4.1
TRANSP WIND DIR.NE NE NE NE NE NE NE NE NE NE NE NE
TRANSP WIND SPD.17 20 22 22 22 21 20 20 18 18 20 18
LVORI...........3 1 1 1 1 1 1 1 1 1 1 1
ADI.............8 44 65 75 84 91 92 92 93 93 93 92
VRATE MPH-FT/1K.19 34 50 60 68 74 75 76 77 77 78 76
VENTRATE CAT....PR PR FR FR FR GD GD GD GD GD GD GD
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MIN TEMPERATURE.....AROUND 38.
MAX HUMIDITY........92 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....EAST 9 TO 17 MPH.
SMOKE DISPERSAL.....GOOD (51979 MPH-FT) EARLY IN THE EVENING
DECREASING TO POOR (6439 MPH-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................64 EARLY IN THE EVENING DECREASING TO 4 LATE IN
THE NIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........31 46 45 52 52 55
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............54 46 43 41 40 39
RH..............40 58 70 79 85 92
20 FT WIND......NE 6 E 3 E 2 NE 1 NE 2 NE 1
20 FT WIND GUST.13 8 6 5 5 5
MIX HGT (FT)....3000 800 700 700 600 800
TRANSPORT WIND..NE 17 E 14 E 10 E 9 E 10 E 12
LVORI...........1 3 3 4 5 6
ADI.............64 6 5 4 5 5
VRATE MPH-FT/1K.51 10 7 6 6 8
VENTRATE CAT....FAIR POOR POOR POOR POOR POOR
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CHANCE OF PCPN......0 PERCENT.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4900 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR (10695 MPH-FT) EARLY IN THE MORNING
INCREASING TO GOOD (31049 MPH-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................5 TO 39.
TIME (EDT) 6 AM 10 AM 2 PM
SKY (%).........53 43 40
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0
TEMP............40 53 65
RH..............92 64 43
20 FT WIND......NE 2G5 NE 3G7 NE 5G11
MIX HGT (FT)....900 2300 4900
TRANSPORT WIND..E 12 E 9 NE 6
LVORI...........6 2 1
ADI.............5 29 39
VRATE MPH-FT/1K.10 22 31
VENTRATE CAT....POOR POOR POOR
FORECASTER...THOMAS
REQUESTED BY...REBECCA WILSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2609453.0/AKQ
.DELDT 04/07/26
.FORMATTERVERSION 2.0.0
.EMAIL REBECCA.WILSON@DCR.VIRGINIA.GOV
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