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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Thu Nov 13 2025
VAZ020-140900-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
1231 AM EST Thu Nov 13 2025
Date 11/12/25 Thu 11/13/25 Fri 11/14/25 Sat
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 38 53 31 59 41
TEMP 41 39 38 46 53 51 42 39 37 33 32 48 58 56 47 46 45 43 42
DEWPT 23 24 27 27 24 23 24 24 24 24 24 26 25 27 28 31 32 33 35
MIN/MAX RH 63 32 74 28 78
RH 48 54 64 47 32 33 48 54 59 69 72 42 28 32 47 55 60 67 76
WIND DIR W W W NW NW NW W W W W W W W W W W W W W
WIND SPD 6 5 5 5 4 4 3 3 2 2 2 2 2 2 2 2 2 2 2
WIND GUST 16 14
CLOUDS CL SC FW CL FW FW FW FW FW CL FW FW FW FW SC SC B1 B1 B1
CLOUDS(%) 0 29 13 3 6 17 11 10 8 5 8 8 10 18 40 48 54 51 54
VSBY 10 10 10 10 10 10 10 10 10 10 10 3 3 3 3 3 10 3 2
POP 12HR 0 0 0 0 10
MIX HGT <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 2 4 2 <1
T WIND DIR W W W NW NW NW W NW W W W W NW W W
T WIND SPD 10 8 8 28 29 26 9 8 5 5 4 13 23 13 3
DISPERSION PR PR VP VP VP VP VP VP VP VP
ADI 5 4 8105129102 4 4 3 3 5 30 99 35 2
MAX LVORI 3 3 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY F F B B B B G G G G B B B B G
CEILING None None None None None None None None
STA PRES 27.81 27.86 27.87 27.90 27.91 27.93 27.86
Date 11/15Sun 11/16/25Mon 11/17/25Tue 11/18/25Wed 11/19/25
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 63 52 60 36 53 34 53 39 57
TEMP 63 56 56 54 58 47 41 36 52 41 37 35 52 44 42 39 56 46
DEWPT 49 48 48 48 37 26 22 21 19 20 22 26 35 35 35 35 39 37
RH 60 74 74 80 45 43 46 54 27 42 54 69 52 70 76 85 53 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 SC FW FW FW FW FW SC SC B1 B1 B1 B1 SC SC
POP 12HR 10 30 20 5 5 20 30 20 10
RAIN S C S S C 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