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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EST Mon Jan 12 2026
NCZ001-122100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 AM EST Mon Jan 12 2026
Date Mon 01/12/26 Tue 01/13/26 Wed 01/14/26
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 36 27 46 33 41
TEMP 26 34 35 29 29 30 29 29 37 45 44 37 37 37 36 34 36 41 39 36
DEWPT 7 7 7 12 10 9 10 12 16 21 24 24 22 22 22 23 26 29 30 31
MAX/MIN RH 29 48 38 65 55
RH 44 32 30 48 44 41 44 48 42 38 45 59 54 54 56 64 67 62 70 82
WIND DIR W W W W W W W W W SW SW SW W W W W W W W W
WIND SPD 9 8 8 10 13 13 13 12 8 9 9 10 14 19 21 20 16 12 12 16
CLOUDS CL CL CL CL CL FW FW FW FW CL FW CL FW FW SC B1 B2 B2 B2 B2
CLOUDS(%) 5 5 5 3 4 25 14 10 10 5 12 5 9 22 42 58 80 76 84 85
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 4 4 1
POP 12HR 0 0 0 0 40
SNOW C C D
MIX HGT <1 2 1 <1 <1 <1 <1 <1 <1 2 1 <1 <1 <1 <1 <1 1 3 2 <1
T WIND DIR NW W W W W NW NW W W W SW SW W W W W W W W W
T WIND SPD 10 11 10 6 6 8 8 6 10 18 9 6 10 12 13 12 19 19 12 14
DISPERSION FR FR FR FR FR GD GD GD GD
ADI 8 25 15 5 6 7 7 8 8 42 15 5 9 11 12 14 27 44 21 13
MAX LVORI 2 2 2 2 2 2 2 2 2 1 2 3 2 2 2 2 3 1 3 4
STABILITY C C C E D D D D C C C E D D D D D D D D
CEILING None None None None None None None 16600 400
STA PRES 26.83 26.82 26.79 26.77 26.64 26.56 26.46 26.40 26.33
Date Thu 01/15/26Fri 01/16/26Sat 01/17/26Sun 01/18/26
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 21 11 27 20 30 14 21
TEMP 32 19 18 16 13 11 23 22 22 22 27 25 21 15 18 13
DEWPT 28 18 9 6 4 2 7 12 13 14 14 17 13 9 4 2
RH 85 96 67 64 67 66 50 65 68 71 57 71 71 77 53 61
WIND SPD 15> 15> 15> 15> 15> 15> 15> 15>
AVG CLOUDS B2 B2 B2 B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 SC
POP 12HR 80 50 20 5 10 20 20 20
SNOW D L C C S S 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