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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EST Tue Jan 13 2026
VAZ024-132100-
RAWS 441631
37.63N 79.51W Elev. 865 ft
1001 AM EST Tue Jan 13 2026
Date Tue 01/13/26 Wed 01/14/26 Thu 01/15/26
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 56 36 53 24 32
TEMP 52 53 45 42 40 37 37 45 53 51 46 41 34 28 24 28 32 31 26
DEWPT 23 26 27 28 27 28 30 34 37 38 38 33 24 17 11 9 6 4 4
MAX/MIN RH 32 75 54 75 31
RH 32 35 49 57 59 70 75 65 54 61 73 73 66 63 57 44 33 31 38
WIND DIR SW S SW SW SW SW SW SW W W W W NW NW NW NW NW NW NW
WIND SPD 5 5 3 2 2 2 2 2 4 4 3 4 5 6 6 10 10 10 6
WIND GUST 16 12 14 14 18 20 24 24 26 25 25 24
CLOUDS CL SC SC FW SC SC B1 B2 B2 OV OV B2 B1 B1 B1 SC FW FW FW
CLOUDS(%) 2 28 34 22 32 35 52 81 82 90 88 71 54 55 54 39 22 16 9
VSBY 10 10 10 10 10 10 10 6 6 6 9 8 10 10 10 8 8 8 10
POP 12HR 0 5 40 30 5
RAIN C C C C
MIX HGT 3 2 <1 <1 <1 <1 <1 1 3 3 2 3 3 4 4 5 5 5 4
T WIND DIR SW S S SW SW SW SW SW W W W NW NW NW NW NW NW NW NW
T WIND SPD 12 12 9 6 4 4 5 6 18 18 16 20 27 27 28 26 24 26 24
DISPERSION VP VP VP VP VP VP PR PR PR
ADI 36 33 4 3 2 2 5 13 46 46 7 14 19 19 82105100111 11
MAX LVORI 1 1 2 3 3 3 3 3 1 1 3 3 3 2 1 1 1 1 2
STABILITY C C G G G G C C D D F E E E D C C C F
CEILING None None None 9100 4400 4400 None None None
STA PRES 28.38 28.29 28.22 28.15 28.11 28.18 28.24 28.30 28.34
Date Fri 01/16/26Sat 01/17/26Sun 01/18/26Mon 01/19/26
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 15 38 24 44 21 35 17 36
TEMP 21 17 36 33 28 25 43 35 27 22 35 28 22 18 34 30
DEWPT 4 6 7 12 16 20 22 20 17 14 12 11 9 8 7 11
RH 47 61 29 41 60 81 43 54 65 71 38 48 57 64 32 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW SC B1 SC SC B1 B1 SC SC SC SC SC SC FW FW
POP 12HR 0 5 10 20 10 20 5 5
SNOW S S 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