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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EDT Sat Aug 1 2026
VAZ012-012000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1231 PM EDT Sat Aug 1 2026
Date Sat 08/01/26 Sun 08/02/26 Mon 08/03/26
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 81 65 79 64 80
TEMP 80 77 70 68 67 67 67 71 75 78 72 67 66 65 65 73 76 79 72
DEWPT 63 65 67 66 66 67 67 71 71 71 69 67 66 65 65 70 69 69 68
MAX/MIN RH 57 100 80 100 73
RH 56 67 90 93 97100100100 87 79 90100100100100 90 79 72 87
WIND DIR S S S SE S SE SE S S S S S SW SW SW S SW SW SW
WIND SPD 4 4 5 5 5 3 3 3 4 3 2 1 1 1 1 1 2 1 1
WIND GUST 16 17 16
CLOUDS B2 B2 B2 B2 B2 OV OV B2 B1 OV B1 B2 B1 B1 SC SC OV OV B1
CLOUDS(%) 87 87 71 81 82 93 89 87 69 90 67 78 61 52 50 46 88 88 51
VSBY 10 10 7 7 7 5 3 6 7 7 7 4 7 7 7 7 7 7 7
POP 12HR 20 50 80 50 80
RAIN SHWRS IS SC SC SC SC SC SC SC O SC SC IS IS O O IS
TSTMS IS SC IS IS IS SC SC NM SC IS IS SC SC IS
MIX HGT 4 2 1 <1 <1 <1 1 2 3 3 1 <1 <1 <1 <1 2 4 3 <1
T WIND DIR S S S S S S S S S S S SW SW SW SW W SW SW SW
T WIND SPD 21 19 16 17 18 9 13 20 18 20 19 19 3 3 5 11 10 5 2
DISPERSION PR PR PR VP VP VP VP VP VP
ADI 80 56 11 12 12 4 20 48 58 69 9 9 2 2 6 35 49 21 1
MAX LVORI 1 1 5 5 5 9 5 4 4 3 5 8 10 10 9 4 3 3 6
STABILITY C C E E E F B B C B F F F F A A B B F
CEILING 1900 700 700 700 600 700 2700 None 2400
STA PRES 27.12 27.08 27.07 27.07 27.05 27.10 27.12 27.17 27.18
Date Tue 08/04/26Wed 08/05/26Thu 08/06/26Fri 08/07/26
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 62 79 62 80 63 81 64 84
TEMP 64 65 76 72 65 65 77 73 65 65 78 74 65 66 79 74
DEWPT 64 65 68 68 65 65 69 68 65 65 69 68 65 66 69 69
RH 100100 76 87100100 76 84100100 74 82100100 72 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B2 SC B1 B1 B2 SC SC SC B2 SC SC SC B2
POP 12HR 20 70 10 70 10 60 10 60
RAIN SHWRS IS SC NM SC NM IS NM IS NM
TSTMS IS IS SC IS SC SC 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