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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 AM EST Thu Nov 13 2025
NCZ003-132100-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
931 AM EST Thu Nov 13 2025
Date Thu 11/13/25 Fri 11/14/25 Sat 11/15/25
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 61 36 64 45 70
TEMP 52 59 59 48 42 39 37 37 52 61 63 54 49 48 46 47 60 69 68 60
DEWPT 33 24 24 24 25 27 27 27 31 29 33 34 36 38 40 43 49 51 52 50
MAX/MIN RH 23 68 29 86 51
RH 48 26 26 39 50 62 67 67 44 29 32 46 61 68 79 86 67 53 57 69
WIND DIR NW NW NW NW NW NW NW W NW W SW SW W W W W W SW SW SW
WIND SPD 5 10 5 3 3 3 3 3 2 4 4 3 2 2 2 2 4 6 6 6
CLOUDS FW SC B1 FW CL CL CL FW FW FW FW SC SC SC SC SC SC SC B1 B1
CLOUDS(%) 23 43 59 18 1 1 3 12 7 10 12 36 27 35 36 35 35 47 55 55
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 0
MIX HGT 3 4 2 <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 2 4 2 <1
T WIND DIR NW NW NW NW W W W W NW NW SW SW SW SW SW W W W SW SW
T WIND SPD 16 19 14 5 3 3 3 3 6 8 8 3 4 3 3 3 5 13 16 10
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 60 98 33 3 2 2 2 4 12 24 15 2 2 2 2 4 15 71 31 7
MAX LVORI 1 1 1 2 2 3 3 3 2 2 2 2 3 3 5 5 3 1 1 3
STABILITY B B C G G G G B B B B G G G G B B B D E
CEILING None None None None None None None None None
STA PRES 29.07 29.11 29.13 29.14 29.04 28.99 28.92 28.87 28.72
Date Sun 11/16/25Mon 11/17/25Tue 11/18/25Wed 11/19/25
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 54 69 39 63 40 59 45 61
TEMP 55 55 67 55 45 40 60 53 44 41 57 53 47 45 59 54
DEWPT 50 50 46 37 29 25 27 33 33 33 40 44 44 43 47 46
RH 83 83 47 51 53 55 28 46 65 73 53 71 89 93 64 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 SC FW FW FW FW SC SC SC B1 SC B1 B1 B1
POP 12HR 5 0 0 0 10 30 20 5
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