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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 AM EDT Sat Jun 20 2026
VAZ046-202000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
601 AM EDT Sat Jun 20 2026
Date Sat 06/20/26 Sun 06/21/26 Mon 06/22/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 86 63 90 69 93
TEMP 65 78 84 86 81 70 66 63 68 82 88 90 85 74 72 70 74 86 91 88 82
DEWPT 56 56 56 55 57 56 56 56 59 59 59 59 62 61 61 63 66 69 70 72 71
MAX/MIN RH 34 77 36 80 51
RH 73 47 38 35 44 61 70 78 73 46 38 35 46 64 68 78 76 57 50 59 69
WIND DIR SW W W W W W W W W W W W S SE S S S SW SW SW SW
WIND SPD 4 5 6 8 4 3 2 1 1 3 5 5 2 4 5 9 12 13 14 13 9
WIND GUST 17 18 16 19 24 25 25 20
CLOUDS SC B1 SC FW FW FW FW FW FW SC FW SC SC SC B1 B1 B1 B1 OV OV B1
CLOUDS(%) 39 56 40 14 6 6 11 8 23 29 14 26 39 28 51 57 54 54 90 90 64
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 90
RAIN SHWRS SC SC O O SC
TSTMS IS SC SC SC
MIX HGT <1 5 7 8 <1 <1 <1 <1 <1 5 8 8 <1 <1 <1 <1 2 5 5 4 <1
T WIND DIR W W W W W W W W W W W W SE SE SE SW SW SW SW SW NW
T WIND SPD 3 10 11 12 6 3 2 2 2 9 12 10 1 3 2 4 14 21 26 19 4
DISPERSION VP VP VP VP VP VP PR PR PR
ADI 3 60 89107 3 2 1 1 2 59116 94 1 2 2 4 34 67 82 51 4
MAX LVORI 3 1 1 1 2 3 3 4 3 1 1 1 2 3 3 4 3 1 1 1 3
STABILITY A B B B F G G G A A A A G F E D C D D D D
CEILING None None None None None None None None None 4200
STA PRES 29.27 29.20 29.22 29.23 29.24 29.20 29.20 29.18 29.16 29.12
Date Tue 06/23/26Wed 06/24/26Thu 06/25/26Fri 06/26/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 68 87 63 86 64 86 64 87
TEMP 71 71 85 80 67 67 83 80 67 67 84 79 68 68 84 82
DEWPT 67 65 62 62 59 59 60 62 61 62 64 66 64 64 64 65
RH 87 81 46 54 75 75 46 54 81 84 51 64 87 87 51 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC SC FW SC SC B1 B1 B1 B1 SC SC SC
POP 12HR 50 20 5 10 30 40 30 20
RAIN SHWRS SC IS IS IS SC SC SC SC IS IS
TSTMS SC IS IS SC SC IS
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
FRZG RAIN......Freezing rain
FRZG DRZL......Freezing drizzle
COVERAGE...
IS.............Isolated
SC.............Scattered
NM.............Numerous
O..............Occasional
S..............Slight chance
C..............Chance
L..............Likely
WD.............Widespread
D..............Definite
AR.............Areas
PA.............Patchy
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions