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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Fri Jan 16 2026
NCZ005-170900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
231 AM EST Fri Jan 16 2026
Date 01/15/26 Fri 01/16/26 Sat 01/17/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX TEMP 18 42 31 51 30
TEMP 20 19 29 40 42 35 34 32 33 34 41 48 50 44 39 37 34 31
DEWPT 8 7 7 3 4 9 11 12 16 20 29 34 34 33 32 30 28 25
MIN/MAX RH 58 19 62 46 79
RH 59 59 39 21 20 33 38 43 49 56 62 58 54 65 76 75 78 78
WIND DIR W SW SW SW S S S SW SW SW SW SW SW W W NW NW NW
WIND SPD 4 3 5 10 10 5 9 9 9 9 10 10 8 3 3 2 3 3
WIND GUST 20
CLOUDS CL FW SC FW FW FW FW B1 B2 B2 B2 B2 SC SC B1 B2 OV B2
CLOUDS(%) 5 10 29 19 6 15 11 53 74 74 78 70 45 38 62 78 90 87
VSBY 10 10 10 10 10 10 10 10 10 7 7 7 7 7 7 6 6 5
POP 12HR 0 0 10 30 30
RAIN C C S S S S C
SNOW C C C
MIX HGT <1 <1 2 3 3 <1 <1 <1 <1 <1 2 2 3 <1 <1 <1 <1 <1
T WIND DIR W W SW SW S S S S S S SW SW SW SW W NW NW N
T WIND SPD 13 8 9 16 19 8 9 9 9 9 14 12 10 3 2 12 2 1
DISPERSION VP PR PR PR PR VP VP VP VP
ADI 6 8 21 50 65 4 6 8 8 10 29 25 36 2 1 6 1 1
MAX LVORI 3 2 2 1 1 2 2 2 2 2 2 2 1 3 4 4 4 4
STABILITY F B C C C F E D D D D D C G F F F C
CEILING None None None 7700 2100 None 8100 1600
STA PRES 29.33 29.30 29.33 29.31 29.37 29.39 29.43 29.41
Date 01/18Mon 01/19/26Tue 01/20/26Wed 01/21/26Thu 01/22/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 37 20 44 16 35 17 45 29 54
TEMP 36 30 24 22 41 35 24 16 32 28 21 20 43 38 33 30 51 45
DEWPT 18 17 15 13 13 12 4 -3 -6 -1 3 3 9 15 19 21 28 29
RH 47 58 68 68 31 38 41 42 18 28 45 47 24 38 56 69 41 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 SC FW FW CL FW FW FW CL CL CL CL FW FW FW SC SC B1
POP 12HR 30 0 0 0 0 0 0 10 20
RAIN S S S
SNOW 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