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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EST Thu Jan 15 2026
NCZ003-152100-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
1101 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 32 18 39 30 46
TEMP 31 31 26 24 22 20 19 26 35 39 35 34 32 32 32 36 43 46 41
DEWPT 3 4 5 6 6 6 6 6 5 9 13 14 17 19 23 29 32 32 28
MAX/MIN RH 30 57 27 71 56
RH 30 31 40 45 49 54 56 42 28 28 40 43 53 58 69 75 65 58 59
WIND DIR NW NW W W W W SW SW SW SW S SW SW SW SW SW SW W W
WIND SPD 14 16 13 11 8 5 3 5 8 9 6 8 6 5 5 6 9 8 6
WIND GUST 26 28 18 17 19
CLOUDS FW SC FW FW FW FW SC SC FW FW FW B1 B1 B2 B2 B1 B1 SC SC
CLOUDS(%) 20 42 7 7 7 15 47 35 21 10 24 56 68 79 79 69 55 49 46
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 10 20
RAIN S S
MIX HGT 6 6 1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 4 3 <1
T WIND DIR NW NW NW NW W W SW SW SW SW S S SW S SW SW W W W
T WIND SPD 23 25 25 20 14 10 6 11 16 17 5 8 9 8 8 10 16 16 6
DISPERSION FR FR PR PR PR PR PR PR PR
ADI 75 84 23 14 10 5 7 23 49 53 3 7 6 5 9 20 42 56 5
MAX LVORI 1 1 2 2 2 3 3 2 1 1 2 2 2 3 3 3 1 1 3
STABILITY D D D E E F B C C C F D E E D D D C E
CEILING None None None None None None 3700 3300 None
STA PRES 28.75 28.85 28.92 28.97 28.95 28.96 28.93 28.99 29.01
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 26 32 15 37 16 32 16 39
TEMP 33 26 30 26 19 15 34 31 23 17 30 26 19 16 36 33
DEWPT 23 19 14 9 8 6 10 12 8 4 0 3 3 2 7 13
RH 66 74 51 48 61 67 36 45 52 56 27 36 49 53 29 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 SC FW FW CL FW SC FW FW FW CL FW FW FW
POP 12HR 20 20 0 0 0 0 0 0
SNOW 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