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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EST Tue Jan 13 2026
NCZ001-132100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1231 PM 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 46 34 41 12 17
TEMP 44 43 39 38 38 37 35 36 39 36 34 31 24 18 13 13 15 15 14
DEWPT 17 18 22 22 22 23 25 28 29 30 31 27 19 12 6 5 4 2 2
MAX/MIN RH 33 70 53 89 55
RH 33 36 50 52 52 56 66 72 67 79 89 85 81 77 73 70 61 55 58
WIND DIR W W W W W W W W W W W NW NW NW NW NW NW NW NW
WIND SPD 10 10 12 16 21 21 18 13 12 13 21 28 33 35 36 31 24 26 29
CLOUDS CL FW FW FW FW SC SC B2 B2 OV OV B2 B2 B2 B1 B1 SC SC SC
CLOUDS(%) 2 7 9 13 25 38 47 73 80 91 89 82 80 76 68 59 48 49 36
VSBY 10 10 10 10 10 10 10 10 10 6 4 8 10 10 10 10 10 10 10
POP 12HR 0 5 50 50 10
RAIN S
SNOW C C C C
MIX HGT 2 2 <1 <1 <1 <1 <1 1 2 1 1 2 2 2 2 3 4 5 3
T WIND DIR W SW SW W W W W W W W NW NW NW NW NW NW NW NW NW
T WIND SPD 17 11 8 9 11 11 10 19 21 14 17 31 33 28 29 25 26 27 28
DISPERSION FR GD GD GD GD GD GD GD GD
ADI 43 27 7 8 10 10 11 26 46 22 15 35 45 32 59 58 73 82 39
MAX LVORI 1 2 2 2 2 2 3 3 1 3 4 4 3 3 3 3 1 1 1
STABILITY C C D D D D D D D D D D D D D D D D D
CEILING None None None 6100 700 700 600 None None
STA PRES 26.59 26.51 26.42 26.35 26.31 26.33 26.35 26.43 26.45
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 10 30 23 30 15 22 11 25
TEMP 12 12 27 24 26 26 29 24 20 16 21 17 14 11 21 20
DEWPT 2 1 7 13 17 19 17 14 11 9 9 8 4 1 6 9
RH 63 60 42 62 68 74 60 65 67 73 59 67 64 63 52 62
WIND SPD 15> 15> 15> 15> 15> 15> 15> 15>
AVG CLOUDS FW FW SC B1 SC B1 B1 B1 B1 B1 B1 SC SC SC FW FW
POP 12HR 0 5 20 20 20 20 5 5
SNOW 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