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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EST Thu Jan 15 2026
VAZ012-152100-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
331 AM EST Thu Jan 15 2026
Date Thu 01/15/26 Fri 01/16/26 Sat 01/17/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 20 12 43 27 41
TEMP 18 16 18 19 19 18 17 15 14 14 27 39 42 35 31 29 29 30 37 40 38 31
DEWPT 8 5 6 5 3 3 4 4 3 2 2 5 11 14 18 22 22 26 27 24 21 20
MAX/MIN RH 42 63 23 83 48
RH 64 61 59 54 49 51 56 61 61 58 33 24 28 41 58 75 75 85 67 52 50 63
WIND DIR NW NW NW NW NW NW NW W W W SW SW SW S SW SW SW SW SW W W W
WIND SPD 9 10 9 6 8 6 6 4 4 3 4 5 4 3 2 2 2 3 5 6 5 3
WIND GUST 21 23 21 20 20 19 18 14 16 14 17 16
CLOUDS B2 B2 B2 B2 B1 SC FW CL FW SC SC B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 SC
CLOUDS(%) 83 83 73 80 68 39 21 5 18 40 48 66 58 61 63 72 72 78 74 57 54 48
VSBY 9 8 8 4 5 10 10 10 10 10 10 10 10 10 10 10 8 10 10 10 10 10
POP 12HR 50 0 0 50 40
SNOW S S C C C C S S S
SNOWSHWRS IS SC SC
MIX HGT 3 3 4 5 4 3 2 1 <1 <1 1 3 3 <1 <1 <1 <1 <1 3 5 5 1
T WIND DIR NW NW NW NW NW NW W W W W SW SW SW S S S S SW W W W W
T WIND SPD 34 36 35 31 33 31 28 17 13 13 14 29 23 8 12 9 14 10 31 29 23 10
DISPERSION PR PR PR VP VP VP VP VP VP VP
ADI 46 94 96 95 95 14 13 8 6 14 25 74 58 4 6 4 7 12 76 92 71 5
MAX LVORI 1 1 1 1 1 2 2 3 3 2 2 1 1 2 3 3 4 4 1 1 1 3
STABILITY D D D D D F F F F B C D D F F F F C D D D F
CEILING 1900 2300 None None None 3600 2900 1700 700 None
STA PRES 26.90 26.93 27.01 27.05 27.08 27.08 27.09 27.07 27.16 27.21
Date Sun 01/18/26Mon 01/19/26Tue 01/20/26Wed 01/21/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 16 25 11 32 7 25 10 40
TEMP 24 17 24 18 14 13 29 25 17 9 23 19 14 11 36 31
DEWPT 17 10 5 4 3 3 7 7 4 0 -5 -3 -2 -1 5 11
RH 74 73 43 53 61 63 39 46 56 66 28 37 48 57 27 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 SC FW FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 40 20 5 0 10 0 0 5
SNOW S C S
$$
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