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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EST Wed Jan 7 2026
NCZ018-080900-
RAWS 311941
36.22N 81.63W Elev. 3254 ft
601 PM EST Wed Jan 7 2026
Date 01/07/26 Thu 01/08/26 Fri 01/09/26 Sat
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 39 54 45 57 52
TEMP 47 42 41 39 39 48 53 52 47 46 46 47 48 51 55 56 54 53 53 52 52
DEWPT 30 35 32 32 30 34 35 36 37 39 42 45 47 50 52 52 52 52 52 52 52
MIN/MAX RH 74 50 99 87 100
RH 51 76 70 76 70 58 50 54 68 76 86 93 96 96 90 86 93 96 96100100
WIND DIR NW NW NW W N SE SE SE SE SE S S S S S S S SW S S S
WIND SPD 3 2 1 1 0 2 6 5 2 3 3 3 4 6 9 6 2 2 2 5 10
WIND GUST 17 21
CLOUDS SC SC B1 SC SC SC B1 B2 OV B2 B2 B2 OV OV OV OV OV OV OV OV OV
CLOUDS(%) 37 44 58 47 40 42 65 74 91 77 85 87 91 95 92 92 91 89 92 92 97
VSBY 10 10 10 10 10 10 10 10 10 10 7 8 9 10 10 9 5
POP 12HR 0 0 20 60 90
RAIN SHWRS IS IS SC SC NM NM O O O O O
MIX HGT <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 <1 1 <1 <1
T WIND DIR NW NW NW NW NW S S S SE SE SE S S S S S S
T WIND SPD 8 4 4 4 3 8 9 10 3 5 4 4 4 5 6 5 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP PR
ADI 4 2 2 2 4 11 16 16 2 3 2 2 5 7 10 7 2
MAX LVORI 2 3 3 3 3 2 2 2 3 4 5 6 7 8 5 5 7
STABILITY G F F F B B D D F F F F D D D D F
CEILING None None None 1400 200 200 300 200 200
STA PRES 26.91 26.94 27.00 26.99 27.0 26.98 27.01 26.99
Date 01/10Sun 01/11/26Mon 01/12/26Tue 01/13/26Wed 01/14/26
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 57 33 36 19 38 24 43 28 44
TEMP 55 54 46 34 35 26 22 19 36 30 26 25 42 32 30 30 43 35
DEWPT 55 51 41 29 18 13 11 11 11 15 13 12 18 22 21 21 25 27
RH 100 90 83 82 49 57 62 70 35 53 57 57 37 66 69 69 49 72
WIND SPD <15 15> 15> 15> <15 <15 <15 <15 <15
AVG CLOUDS OV OV OV B2 B1 SC SC SC FW FW FW FW FW FW SC B1 B1 B1
POP 12HR 100 50 10 10 0 0 5 10 10
RAIN SHWRS O O SC IS
TSTMS 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