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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EST Fri Jan 2 2026
NCZ003-022100-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
631 AM EST Fri Jan 2 2026
Date Fri 01/02/26 Sat 01/03/26 Sun 01/04/26
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 38 45 34 50
TEMP 33 46 55 55 47 44 42 40 41 41 43 45 41 39 37 34 35 40 48 50 41
DEWPT 30 35 36 36 37 36 37 37 37 39 39 39 38 37 35 33 30 28 26 25 24
MAX/MIN RH 47 90 80 93 36
RH 89 65 49 49 68 73 82 89 85 92 86 79 89 92 92 96 82 62 42 37 50
WIND DIR SW SW W W W N N N N E E E N N N NW NW NW NW NW NW
WIND SPD 2 3 5 3 1 0 0 0 0 1 2 1 0 0 0 2 2 3 4 3 1
WIND GUST 16
CLOUDS SC B1 B2 B2 B2 B2 OV OV OV OV OV OV B2 B1 B1 SC FW CL CL FW SC
CLOUDS(%) 47 68 78 86 72 83 98 98100100 99 91 83 69 55 37 18 5 4 13 45
VSBY 10 10 10 10 10 10 9 8 9 7 3 4 1 0 2 8 10 10 10 10 10
POP 12HR 0 40 80 5 0
RAIN L D L C
MIX HGT <1 1 3 2 <1 <1 <1 <1 <1 1 1 1 1 1 <1 <1 <1 2 3 3 <1
T WIND DIR W W W W NW NW N NE NE E E E E E E N NW NW NW NW NW
T WIND SPD 3 13 17 9 5 4 1 1 1 4 3 4 3 2 1 0 3 9 13 13 9
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 25 58 23 3 2 1 1 1 6 6 7 2 1 1 0 4 25 46 52 4
MAX LVORI 5 3 1 2 3 4 6 6 6 5 4 4 7 7 8 8 5 2 1 1 2
STABILITY B B C C F F F F D D C C F F F G B B C B F
CEILING 26900 15600 11800 9000 1400 1100 700 None None None
STA PRES 27.89 27.89 27.94 27.95 27.98 27.97 28.00 28.02 28.11 28.13
Date Mon 01/05/26Tue 01/06/26Wed 01/07/26Thu 01/08/26
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 29 48 33 58 43 64 44 60
TEMP 33 30 46 42 36 35 55 50 45 45 61 54 47 44 57 55
DEWPT 22 25 31 34 32 32 40 41 41 43 47 45 43 42 46 46
RH 63 81 55 73 85 89 57 71 86 93 60 71 86 93 67 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2
POP 12HR 0 0 0 0 5 10 20 30
RAIN S C C
$$
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