Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EST Fri Dec 5 2025
VAZ020-052100-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
501 AM EST Fri Dec 5 2025
Date Fri 12/05/25 Sat 12/06/25 Sun 12/07/25
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 31 25 44 26 42
TEMP 25 26 30 30 30 29 29 28 28 34 42 41 35 32 30 28 27 34 41 39 35
DEWPT 22 22 23 24 24 24 24 24 24 27 28 29 26 25 23 22 23 28 30 30 29
MAX/MIN RH 73 90 57 81 64
RH 88 85 75 78 78 81 81 85 85 75 57 62 69 75 75 78 85 78 65 70 78
WIND DIR E SE S S SW SW W W W W W W W W NW NW NW S S S SW
WIND SPD 2 2 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2
CLOUDS OV OV OV B2 B2 B2 B2 B1 B1 SC SC B1 SC SC SC SC B1 B2 B1 B1 B1
CLOUDS(%) 100 94 92 87 76 86 86 61 52 42 48 59 42 36 35 46 57 72 68 60 57
VSBY 1 2 5 5 1 1 2 2 2 2 6 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 0 0 0 30
RAIN S S
SNOW L S
MIX HGT <1 1 1 <1 <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 <1 2 1 <1
T WIND DIR SE SE S NW W SW W W W W W W W W NW W NW S S S SW
T WIND SPD 8 9 4 1 1 1 1 3 4 9 10 13 9 3 2 2 1 5 11 9 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 9 12 7 1 1 1 1 2 4 14 29 28 4 2 1 1 1 6 33 15 1
MAX LVORI 5 4 4 4 4 6 6 6 5 4 2 2 3 3 3 4 6 4 1 3 4
STABILITY D C C C F F F F C B B C F G G F C C C C F
CEILING 600 1200 1900 700 None None None None 7100 1400
STA PRES 27.85 27.74 27.73 27.70 27.69 27.67 27.77 27.80 27.79 27.70
Date Mon 12/08/25Tue 12/09/25Wed 12/10/25Thu 12/11/25
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 26 33 18 40 27 44 33 39
TEMP 32 27 32 24 21 20 38 32 29 29 43 37 37 34 38 30
DEWPT 26 20 17 13 12 13 20 21 21 22 28 27 29 27 22 17
RH 78 74 53 62 68 74 48 63 72 75 55 67 72 75 52 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC SC SC FW SC B1 B1 B2 B2 B2 B1 SC
POP 12HR 20 10 5 5 0 20 30 30
RAIN S S C C C C
SNOW 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