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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EST Fri Dec 26 2025
NCZ001-262100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1001 AM EST Fri Dec 26 2025
Date Fri 12/26/25 Sat 12/27/25 Sun 12/28/25
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 48 46 57 43 52
TEMP 42 44 47 50 49 48 51 51 56 55 48 47 46 44 44 44 48 51 47
DEWPT 40 42 47 50 49 48 48 47 45 43 44 44 44 42 42 43 44 44 44
MAX/MIN RH 89 100 64 92 79
RH 93 93100100100100 89 86 66 64 86 89 93 93 93 96 86 77 89
WIND DIR S S SW W NW NW NW NW NW W S SE SE S S S S S S
WIND SPD 10 10 11 21 26 24 19 13 8 4 3 5 8 9 9 8 8 8 10
CLOUDS B2 B2 OV B2 OV B2 B2 B1 SC SC FW SC B2 B2 OV B2 B2 B1 B2
CLOUDS(%) 86 79 89 79 88 82 77 63 40 43 24 35 78 86 92 87 78 65 77
VSBY 10 9 7 7 8 9 9 10 10 10 10 10 10 10 4 5 10 10 10
POP 12HR 20 20 0 5 10
DRIZZLE C C
RAIN S S S
MIX HGT <1 <1 <1 1 2 1 1 1 1 1 <1 <1 <1 <1 <1 <1 1 1 <1
T WIND DIR S S SW W W NW NW NW NW NW SE SE SE S S S SW SW SW
T WIND SPD 10 9 6 9 12 18 20 18 12 3 5 10 10 6 6 5 6 5 4
DISPERSION FR GD GD GD VP PR PR PR FR
ADI 11 10 6 8 14 16 27 27 23 5 3 5 9 6 8 6 10 8 4
MAX LVORI 5 5 6 8 5 5 4 4 3 3 5 5 5 5 5 6 4 4 6
STABILITY D D D D D D D D C C G F D D D D D D D
CEILING 300 300 300 21100 None None 400 400 1900
STA PRES 26.58 26.55 26.57 26.66 26.66 26.71 26.71 26.71 26.63
Date Mon 12/29/25Tue 12/30/25Wed 12/31/25Thu 01/01/26
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 40 52 16 25 18 33 22 32
TEMP 49 52 42 29 22 17 22 21 23 21 32 26 26 23 30 23
DEWPT 45 47 36 20 11 8 6 4 4 3 8 12 12 10 9 5
RH 86 83 79 69 62 67 49 47 43 45 36 55 55 57 41 45
WIND SPD 15> 15> 15> 15> 15> 15> 15> 15>
AVG CLOUDS B2 B2 B2 B1 B1 B1 FW FW FW FW FW SC SC SC SC B1
POP 12HR 40 70 20 5 0 0 5 5
RAIN C L C
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