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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 PM EST Fri Jan 2 2026
NCZ003-030900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
631 PM EST Fri Jan 2 2026
Date 01/02/26 Sat 01/03/26 Sun 01/04/26 Mon
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 37 43 31 50 28
TEMP 48 45 43 41 40 40 41 43 38 35 33 32 31 40 48 49 39 34 32 30 28
DEWPT 35 35 35 35 34 34 33 33 33 32 30 28 25 25 21 19 18 18 20 20 19
MIN/MAX RH 86 68 89 30 69
RH 60 68 73 79 79 79 73 67 82 89 89 85 78 55 34 30 42 51 61 66 68
WIND DIR W N NE NE E E NE NE E NE N NW NW N NW N N N NE NE NE
WIND SPD 3 3 3 3 5 5 4 3 3 2 1 2 4 5 5 4 3 2 1 1 2
CLOUDS B2 OV OV B2 OV OV OV B2 B1 FW FW FW FW CL CL FW SC B2 B2 B1 FW
CLOUDS(%) 81 95 92 85 98 96 98 82 66 23 16 24 14 4 5 9 31 72 78 63 24
VSBY 10 10 10 10 10 9 6 5 9 8 7 8 10 10 10 10 10 10 10 10 10
POP 12HR 20 60 5 0 0
RAIN SHWRS SC NM SC
MIX HGT <1 <1 <1 <1 <1 1 1 1 1 <1 <1 <1 <1 1 3 3 <1
T WIND DIR W NE N NE E E NE NE NE NE N SW W NW NW NW N
T WIND SPD 2 1 2 3 3 8 5 4 4 2 0 2 3 10 9 9 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 2 3 10 8 7 2 1 0 1 3 20 28 30 2
MAX LVORI 3 4 4 5 5 4 3 3 4 6 6 6 4 2 2 2 2
STABILITY F F F F C D D C F G G G C C C C G
CEILING 11200 10900 2800 2100 None None None None 22500
STA PRES 28.80 28.82 28.87 28.85 28.87 28.91 29.00 29.02
Date 01/05Tue 01/06/26Wed 01/07/26Thu 01/08/26Fri 01/09/26
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 48 33 58 42 63 44 60 50 63
TEMP 44 41 36 34 53 51 45 44 60 52 47 45 56 54 52 51 59 58
DEWPT 23 30 31 31 39 42 41 41 45 43 42 42 45 46 49 50 52 52
RH 43 65 82 89 59 71 86 89 58 71 83 89 66 74 89 96 78 80
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 SC SC B2 B2 B1 B1 B1 B2 B2 B2 B2 B1 B1
POP 12HR 0 0 0 5 10 10 20 30 30
RAIN S S S
RAIN SHWRS SC SC IS
$$
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