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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Tue Jul 7 2026
VAZ012-080800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 PM EDT Tue Jul 7 2026
Date 07/07/26 Wed 07/08/26 Thu 07/09/26 Fri
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 62 85 62 83 62
TEMP 79 74 67 65 64 66 76 80 80 74 67 65 64 65 75 78 81 74 66 64 63 65
DEWPT 69 68 66 65 64 66 70 69 69 67 65 65 64 65 69 68 68 66 65 64 63 65
MIN/MAX RH 100 64 100 63 100
RH 72 82 97100100100 82 69 69 79 93100100100 82 71 65 76 97100100100
WIND DIR NW NW N N NW W W W W N N W W W W W W W W W W W
WIND SPD 1 1 0 1 1 1 1 1 1 0 0 1 1 2 3 3 3 2 2 3 3 4
CLOUDS B1 FW FW SC SC SC B1 B1 B1 SC B1 B1 SC B1 B1 B2 B2 SC SC SC SC B1
CLOUDS(%) 67 21 12 27 35 46 51 61 67 38 67 66 39 57 53 87 87 29 26 26 42 54
VSBY 10 10 10 9 8 9 10 10 10 10 9 6 6 8 10 10 10 10 10 8 6 10
POP 12HR 10 60 50 80 20
RAIN SHWRS SC SC SC IS SC SC SC SC O O IS IS SC
TSTMS SC SC SC IS IS IS SC SC IS
MIX HGT 4 <1 <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR NW NW NW NW NW NW NW NW W SW S SW NW NW W W W W
T WIND SPD 5 9 4 3 3 4 6 3 4 1 2 4 3 8 12 16 12 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 30 4 2 2 2 5 29 17 19 1 1 2 2 10 53 83 55 4
MAX LVORI 3 5 8 10 10 9 4 3 3 4 8 9 10 7 3 3 1 3
STABILITY B G G G G A B B B G F F G B B B B G
CEILING 2500 None None None 2900 None None 600 2500 None
STA PRES 27.27 27.30 27.32 27.33 27.29 27.27 27.26 27.28 27.25
Date 07/10Sat 07/11/26Sun 07/12/26Mon 07/13/26Tue 07/14/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 84 63 79 61 79 59 82 58 86
TEMP 79 73 65 64 74 72 63 64 75 71 63 63 77 74 62 63 81 76
DEWPT 67 66 65 64 69 66 63 64 67 65 62 63 65 64 61 62 63 64
RH 67 79100100 84 81100100 76 81 97100 67 71 97 97 54 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B1 B2 B2 B1 B1 B2 B2 B1 B1 B1 B1 FW FW SC FW
POP 12HR 70 50 80 40 70 30 40 10 10
RAIN SHWRS SC NM SC SC O O SC SC NM NM SC IS SC SC
TSTMS IS SC SC IS SC SC SC IS SC 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