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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Fri Jun 19 2026
VAZ024-192000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
631 AM EDT Fri Jun 19 2026
Date Fri 06/19/26 Sat 06/20/26 Sun 06/21/26
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 84 58 86 60 91
TEMP 70 78 81 82 75 65 61 58 62 77 84 85 77 66 62 60 65 81 88 90 83
DEWPT 68 63 56 51 52 55 54 54 56 56 54 56 57 57 57 56 59 61 60 60 63
MAX/MIN RH 35 86 36 88 36
RH 93 60 42 34 45 70 78 86 81 48 36 37 50 73 84 87 81 51 39 37 51
WIND DIR W NW NW NW NW W W W W W W W W W NW NW N SW SW SW S
WIND SPD 4 9 10 11 6 4 3 1 2 5 6 8 4 1 1 1 0 2 4 4 1
WIND GUST 17 18 19 16
CLOUDS OV B1 FW CL CL FW FW FW FW FW FW FW CL CL CL FW FW FW SC SC SC
CLOUDS(%) 100 63 13 3 3 6 22 24 20 19 20 8 1 5 5 15 11 14 26 27 34
VSBY 9 10 10 10 10 10 10 6 6 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
RAIN SHWRS
MIX HGT 1 4 6 6 <1 <1 <1 <1 1 5 7 7 <1 <1 <1 <1 <1 5 7 7 <1
T WIND DIR NW NW NW NW NW W W W W W NW W W NW NW NW NW SW SW SW S
T WIND SPD 6 16 18 21 12 4 3 3 3 12 14 13 9 3 3 3 2 8 12 14 11
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 9 58121 99 6 2 2 2 5 73111103 4 2 2 2 2 47102126 5
MAX LVORI 6 3 1 1 2 3 4 5 4 1 1 1 2 3 5 6 5 1 1 1 2
STABILITY D C B C F F G F A A B B F G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 28.35 28.37 28.46 28.48 28.50 28.46 28.47 28.48 28.48 28.43
Date Mon 06/22/26Tue 06/23/26Wed 06/24/26Thu 06/25/26
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 67 89 64 87 60 87 61 89
TEMP 69 70 87 80 69 67 84 79 63 64 85 80 65 65 87 80
DEWPT 62 65 71 70 66 64 62 61 58 58 60 63 60 61 62 64
RH 78 84 59 72 90 90 48 54 84 81 43 56 84 87 43 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 OV B1 B1 SC SC FW SC SC SC SC SC FW SC
POP 12HR 20 90 40 20 5 20 20 30
RAIN SHWRS IS NM O SC IS IS IS IS SC
TSTMS IS SC SC IS IS IS SC
$$
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