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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Tue Aug 25 2026
VAZ018-260800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Tue Aug 25 2026
Date 08/25/26 Wed 08/26/26 Thu 08/27/26 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 59 85 65 85 65
TEMP 64 62 60 63 76 84 79 72 69 68 67 68 78 84 79 71 69 68 67 67
DEWPT 53 53 53 54 62 63 65 64 63 62 62 64 68 68 68 66 65 63 63 64
MIN/MAX RH 77 49 88 59 90
RH 67 72 78 72 62 49 62 76 81 81 84 87 71 59 69 84 87 84 87 90
WIND DIR NW W N S SE S S S S SW SW SW SW S SW SW SW W W W
WIND SPD 1 1 0 1 3 4 5 3 3 3 2 1 2 3 3 1 1 1 1 1
WIND GUST 13 13
CLOUDS FW FW FW SC SC B1 B1 B1 SC SC FW B1 B1 B2 B2 B1 B1 B2 B1 B1
CLOUDS(%) 14 18 19 28 34 61 69 55 44 48 24 54 57 75 75 69 68 72 66 68
VSBY 10 9 8 2 10 10 10 10 10 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 10 20 60 40
RAIN SHWRS IS NM SC SC SC
TSTMS IS SC SC IS
MIX HGT <1 <1 <1 <1 3 6 3 <1 <1 <1 <1 <1 2 6 3 <1
T WIND DIR S SW W N S S S S S S S S SW SW SE NE
T WIND SPD 2 1 2 0 10 10 11 10 11 4 3 2 8 5 10 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 0 41 46 38 5 5 2 2 2 24 37 40 4
MAX LVORI 3 4 4 4 1 1 3 4 4 5 6 6 3 1 1 5
STABILITY G G G A A C C F F F G B A B B F
CEILING None None None 3700 None None 15900 2600 700
STA PRES 27.89 27.89 27.90 27.83 27.82 27.81 27.80 27.77
Date 08/28Sat 08/29/26Sun 08/30/26Mon 08/31/26Tue 09/01/26
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 82 62 82 64 86 66 90 68 90
TEMP 81 71 65 64 80 72 66 66 83 75 68 68 87 78 70 70 87 78
DEWPT 68 66 63 63 68 66 64 65 68 65 64 65 66 65 64 65 69 66
RH 65 84 93 97 67 81 93 97 61 71 87 90 50 64 81 84 55 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B1 B1 B1 B1 SC SC SC SC FW FW SC SC SC SC SC SC
POP 12HR 60 20 30 10 20 0 5 0 20
RAIN SHWRS SC NM IS IS SC IS IS IS
TSTMS IS SC IS SC IS 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