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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 PM EST Mon Dec 29 2025
VAZ018-300900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
631 PM EST Mon Dec 29 2025
Date 12/29/25 Tue 12/30/25 Wed 12/31/25 Thu
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 20 31 23 41 29
TEMP 23 22 23 22 21 25 29 29 25 24 24 25 26 33 40 39 35 34 34 32 30
DEWPT 13 12 11 9 8 9 8 8 5 5 7 10 11 15 19 20 19 21 22 22 20
MIN/MAX RH 66 39 54 42 68
RH 65 65 59 57 56 50 40 40 42 43 47 52 52 47 42 46 52 58 61 66 66
WIND DIR NW NW NW NW NW NW NW W W W W W W W W W W W W W W
WIND SPD 20 20 23 23 25 21 19 10 10 10 10 10 10 10 10 10 10 12 13 14 14
WIND GUST 44 49 55 56 52 44 37 34 34 34 32 35 35 35 33 34 36 40 41 42 42
CLOUDS SC SC SC SC FW FW FW FW FW SC SC B1 SC SC SC B1 SC B1 B1 B1 B1
CLOUDS(%) 38 45 42 29 19 10 7 8 7 28 49 58 43 40 49 54 50 58 61 65 57
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 30
SNOW C C
MIX HGT 3 3 2 2 2 3 3 3 2 2 2 2 2 3 4 4 3
T WIND DIR W NW NW NW NW NW NW NW W W W W W W W W W
T WIND SPD 40 42 42 40 37 36 28 26 25 23 21 23 21 27 28 25 25
DISPERSION GD GD GD GD FR FR FR FR FR FR FR GD
ADI 54 57 57 45 70 83 71 86 17 15 29 31 51 83102 66 34
MAX LVORI 1 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1
STABILITY D D D D D D D C E E D D C C C D D
CEILING None None None None None None None None 2600
STA PRES 27.61 27.61 27.68 27.67 27.68 27.62 27.57 27.52
Date 01/01Fri 01/02/26Sat 01/03/26Sun 01/04/26Mon 01/05/26
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 39 27 49 35 48 30 47 30 50
TEMP 38 30 28 29 48 38 36 36 47 37 32 30 46 35 32 31 50 41
DEWPT 17 16 19 21 25 26 28 29 32 28 24 23 22 22 22 23 30 29
RH 42 55 68 72 40 62 72 75 56 70 72 75 38 59 66 72 46 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC B1 B1 B2 B2 B2 B1 SC SC SC B1 B1 B2 B1 SC
POP 12HR 10 0 0 30 40 20 5 5 20
RAIN C C S S 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
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