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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Tue Dec 30 2025
NCZ001-310900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
701 PM EST Tue Dec 30 2025
Date 12/30/25 Wed 12/31/25 Thu 01/01/26 Fri
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 15 32 26 32 27
TEMP 18 17 17 19 22 29 30 28 28 28 28 27 26 29 31 28 28 29 30 32
DEWPT 4 6 7 7 9 12 14 17 19 20 21 22 21 21 20 21 22 24 24 25
MIN/MAX RH 63 49 83 65 81
RH 53 61 64 59 57 48 51 63 68 71 75 81 81 72 63 75 78 81 78 75
WIND DIR W W W W W W W W W W W NW NW W W W W W W W
WIND SPD 27 26 28 29 26 21 21 29 36 37 43 42 33 20 17 16 13 12 13 13
WIND GUST 40 32 32 43
CLOUDS B1 SC SC FW SC FW FW FW FW SC B1 B1 B1 SC SC SC SC B2 B2 B2
CLOUDS(%) 52 30 29 16 32 20 18 13 20 44 67 68 69 50 47 43 32 70 71 77
VSBY 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10
POP 12HR 0 0 10 0 0
MIX HGT <1 1 <1 <1 1 2 2 <1 <1 1 1 1 2 2 2 1
T WIND DIR NW W W W W W W W W W W NW NW NW W W
T WIND SPD 25 18 18 18 19 19 19 18 29 27 28 28 29 23 10 6
DISPERSION GD GD GD GD GD GD GD GD FR FR FR
ADI 23 16 16 20 31 37 36 16 27 25 26 42 58 46 21 6
MAX LVORI 2 2 2 2 1 1 1 2 3 3 3 3 4 3 3 4
STABILITY D D D D D D D D D D D D D D D D
CEILING None None None None None 0 100 None None
STA PRES 26.54 26.51 26.50 26.46 26.43 26.40 26.48 26.53
Date 01/02Sat 01/03/26Sun 01/04/26Mon 01/05/26Tue 01/06/26
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 43 36 44 30 44 32 45 33 42
TEMP 40 39 39 36 43 36 33 30 41 37 34 35 44 38 36 33 40 33
DEWPT 28 30 32 32 31 29 26 24 26 27 25 26 29 29 28 26 24 23
RH 62 70 76 85 62 75 75 78 55 67 69 69 55 70 72 75 52 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 15> 15>
AVG CLOUDS B2 B2 B2 B2 B2 B1 SC FW FW SC SC SC B1 B1 B1 B1 B1 SC
POP 12HR 5 30 20 5 0 5 5 10 10
RAIN S 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