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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 AM EDT Fri Jul 24 2026
VAZ018-242000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
931 AM EDT Fri Jul 24 2026
Date Fri 07/24/26 Sat 07/25/26 Sun 07/26/26
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 72 61 75 62 85
TEMP 68 71 71 67 65 63 63 63 68 73 75 70 66 64 62 64 77 82 84 76
DEWPT 62 62 62 63 63 62 63 63 65 65 66 65 64 61 60 62 66 66 66 65
MAX/MIN RH 73 100 72 94 54
RH 81 73 73 87 93 97100100 90 76 74 84 93 90 93 93 69 58 55 69
WIND DIR SE SE SE SE SE SE E SE SE SE SE S N N W NW NW NW NW NW
WIND SPD 5 5 5 3 3 2 2 1 2 2 2 2 0 0 1 2 2 3 4 2
WIND GUST 12
CLOUDS B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC FW FW FW FW SC SC SC
CLOUDS(%) 75 75 71 80 83 87 77 86 71 66 52 59 28 16 24 25 25 37 37 26
VSBY 7 10 7 6 6 6 6 7 10 10 7 10 10 10 10 10 10 7 7 10
POP 12HR 40 70 30 10 20
RAIN SHWRS SC IS SC SC NM SC IS SC IS IS
TSTMS IS IS IS
Obvis PF PF
MIX HGT 2 3 2 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 4 6 5 1
T WIND DIR SE SE SE E E NE E E NE S NW W NW NW NW NW N NW NW NW
T WIND SPD 12 12 9 6 3 2 2 2 1 2 8 8 8 4 3 3 10 8 6 9
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 34 39 25 3 2 1 1 2 2 8 29 4 4 2 2 3 50 56 43 4
MAX LVORI 4 3 3 6 7 7 10 9 7 4 3 5 6 6 7 6 1 1 1 3
STABILITY C C C F F F F B B B B F G G G A A A A G
CEILING 1600 100 1600 100 1700 None None None None
STA PRES 27.91 27.90 27.86 27.87 27.81 27.79 27.77 27.75 27.69
Date Mon 07/27/26Tue 07/28/26Wed 07/29/26Thu 07/30/26
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 64 88 68 89 67 85 63 86
TEMP 66 67 85 77 70 70 87 78 71 69 83 75 66 66 84 75
DEWPT 62 64 67 67 65 66 70 69 67 66 66 64 61 62 62 62
RH 87 90 55 71 84 87 57 74 87 90 57 69 84 87 48 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC B1 B1 B1 B1 B1 SC SC B1 FW FW SC FW
POP 12HR 5 20 30 50 40 30 10 20
RAIN SHWRS IS SC IS IS SC SC IS IS SC IS
TSTMS IS IS IS SC IS 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