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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EST Fri Dec 5 2025
NCZ005-052100-
RAWS 310540
36.38N 79.70W Elev. 858 ft
1231 PM 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 33 27 47 26 48
TEMP 31 33 31 30 30 29 31 37 44 45 39 35 32 29 27 38 46 46 39
DEWPT 30 29 31 30 30 29 31 36 38 39 38 35 32 29 27 33 35 36 35
MAX/MIN RH 86 100 76 100 64
RH 96 85100100100100100 96 79 79 96100100100100 82 65 68 85
WIND DIR NE N N N W W SW W W W SW W NW N N NE SE S W
WIND SPD 5 4 2 1 1 1 2 3 5 4 2 2 2 1 2 2 3 2 2
CLOUDS OV OV B2 B2 OV OV OV OV OV B2 SC FW SC SC SC SC B1 SC SC
CLOUDS(%) 96 95 82 81 93 89 88 88 92 71 35 14 30 27 35 50 64 49 48
VSBY 1 2 3 1 1 1 1 6 10 10 9 8 10 10 10 10 10 10 10
POP 12HR 80 0 0 0 10
FRZG RAIN
SNOW
MIX HGT 1 1 1 1 <1 <1 <1 <1 2 1 <1 <1 <1 <1 <1 <1 3 1 <1
T WIND DIR NE N N N N NW SW W SW SW SW SW NW SW N W S SW SW
T WIND SPD 8 8 6 5 3 3 2 4 10 11 3 2 1 1 0 1 6 2 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 11 10 3 3 2 2 2 5 24 16 2 1 1 1 0 1 20 4 4
MAX LVORI 6 5 9 9 10 10 10 7 3 3 8 10 10 10 10 5 3 3 6
STABILITY D C F F F F C B C D F G G G B B C B F
CEILING 1000 1000 700 11500 10800 None None None None
STA PRES 29.25 29.25 29.23 29.24 29.21 29.27 29.31 29.32 29.22
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 30 41 19 43 29 52 39 49
TEMP 35 31 39 31 24 21 40 34 31 31 49 45 43 40 47 38
DEWPT 32 29 25 21 16 16 19 24 27 27 33 35 36 36 29 25
RH 89 92 57 66 71 81 42 66 85 85 54 68 76 85 49 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC FW SC SC FW FW SC SC SC B1 B2 SC SC
POP 12HR 20 20 5 0 0 5 20 20
RAIN S S S S S
SLEET S
SNOW 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