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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EDT Thu Oct 15 2026
VAZ018-160800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
831 PM EDT Thu Oct 15 2026
Date 10/15/26 Fri 10/16/26 Sat 10/17/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 64 82 47 54 36
TEMP 65 65 65 64 76 81 76 60 54 52 50 47 49 53 52 43 40 39 37 37
DEWPT 65 64 64 63 66 63 62 56 48 44 43 41 40 37 34 31 30 29 28 26
MIN/MAX RH 100 54 88 49 69
RH 100 97 97 97 71 54 62 87 80 74 77 79 71 54 50 62 67 67 70 64
WIND DIR S SW SW W W W W NW NW NW NW NW N N N N N N N N
WIND SPD 3 2 3 5 6 8 10 14 16 16 14 13 11 9 9 6 4 3 2 2
WIND GUST 20 23 25 26 34 37 39 36 36 31 25 25 20 14
CLOUDS B2 B2 SC FW CL FW SC B1 B1 SC B1 SC SC SC FW FW FW CL CL CL
CLOUDS(%) 85 75 41 19 1 7 38 55 52 50 67 44 49 33 19 8 8 5 1 4
VSBY 2 2 6 5 10 10 8 8 8 9 10 10 10 10 10 10
POP 12HR 20 20 40 10 0
RAIN SHWRS IS SC
TSTMS
Obvis PF PF
MIX HGT <1 <1 <1 <1 3 5 3 2 2 2 3 2 4 5 4 1
T WIND DIR SE S S SW W W W NW NW NW NW N N N N N
T WIND SPD 5 3 3 4 24 24 19 31 33 34 28 28 28 26 23 17
DISPERSION VP VP VP GD GD GD GD PR VP VP VP
ADI 3 2 2 5 84143 66 35 37 46 39 76108107 89 8
MAX LVORI 9 7 8 7 3 1 1 4 3 3 3 3 3 1 1 3
STABILITY F F F B B B C D D D D C C C C F
CEILING 0 None None None None 1400 None None None
STA PRES 27.85 27.77 27.68 27.62 27.72 27.80 27.99 28.08
Date 10/18Mon 10/19/26Tue 10/20/26Wed 10/21/26Thu 10/22/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 58 38 62 42 68 46 68 46 67
TEMP 57 45 40 39 61 51 45 44 67 56 50 47 67 56 50 47 66 56
DEWPT 31 33 31 30 41 41 39 37 46 45 43 41 48 46 45 43 51 48
RH 37 62 70 70 48 68 79 76 47 66 77 79 50 69 83 86 58 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL FW FW FW SC FW FW FW FW FW FW CL FW FW FW
POP 12HR 5 5 5 5 0 0 0 0 0
$$
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