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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Thu Oct 15 2026
VAZ046-160800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
431 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 60 85 50 58 37
TEMP 67 64 63 62 62 62 74 84 83 72 64 58 53 51 53 56 56 48 44 41 39 38
DEWPT 64 63 63 62 62 62 67 67 66 65 58 52 50 48 44 38 34 34 32 31 29 30
MIN/MAX RH 100 54 91 44 73
RH 90 97100100100100 79 57 57 79 81 80 89 89 71 51 43 58 62 67 67 73
WIND DIR NE NE NE N SW SW SW SW SW W NW NW NW N N N N N N N N N
WIND SPD 8 4 2 0 2 5 10 12 11 10 11 8 6 10 14 14 13 8 5 5 5 6
WIND GUST 21 21 23 19 18 20 25 25 24 19 16
CLOUDS B2 B1 B2 B1 B2 B1 SC FW FW SC B1 OV B2 B1 B1 FW FW FW CL CL CL CL
CLOUDS(%) 82 69 70 57 73 53 27 9 18 34 66 90 74 66 53 24 20 11 5 4 5 1
VSBY 9 10 8 9 6 5 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 5 70 20 5
RAIN SHWRS SC IS SC IS IS
Obvis PF PF
MIX HGT 2 1 1 <1 <1 <1 1 4 4 2 <1 1 <1 1 4 5 5 1
T WIND DIR NE NE E SE S SW SW SW SW W NW NW NW N N N N N
T WIND SPD 13 10 5 2 1 4 11 21 23 26 24 24 16 21 28 25 23 12
DISPERSION VP VP VP VP FR FR PR PR PR PR PR PR
ADI 24 7 3 1 1 5 20 82 84 18 22 22 11 29 84 79 93 8
MAX LVORI 4 6 9 10 10 9 3 1 1 3 3 3 5 4 3 1 1 2
STABILITY D E F F F D C C C E D D E D D D C E
CEILING 400 400 None None 3700 4200 None None None
STA PRES 29.37 29.29 29.19 29.06 29.19 29.32 29.51 29.62
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 43 67 47 67 46 67
TEMP 56 47 39 40 60 53 46 44 66 58 50 48 67 58 50 47 65 58
DEWPT 32 36 36 36 45 45 45 44 49 50 48 47 51 50 49 47 52 52
RH 40 65 89 85 58 74 96100 54 75 93 96 56 75 96100 63 80
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 5 5 5 5 5 5 0 5 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