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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Oct 16 2026
VAZ024-162000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Fri Oct 16 2026
Date Fri 10/16/26 Sat 10/17/26 Sun 10/18/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 84 47 59 35 60
TEMP 74 82 80 68 60 55 51 48 50 56 57 48 42 39 37 36 49 58 59 49
DEWPT 67 65 63 61 53 49 48 46 44 39 35 34 32 31 28 27 29 31 32 34
MAX/MIN RH 54 96 43 72 34
RH 79 56 56 78 78 80 89 93 80 53 43 58 67 73 70 69 46 36 36 56
WIND DIR SW SW W NW NW NW NW N N N N N N N N N NE NE NE NE
WIND SPD 5 8 6 6 8 6 4 8 10 10 10 5 5 2 3 4 4 4 4 2
WIND GUST 19 17 18 21 17 19 21 20 20 12 13 14
CLOUDS FW FW B1 B1 SC B2 B1 SC SC FW CL CL FW FW FW FW FW FW FW FW
CLOUDS(%) 12 13 63 57 34 79 55 41 27 12 2 5 6 10 10 10 10 15 15 25
VSBY 10 10 6 10 10 6 6 4 6 10 10 10 10 10 1 1 10 10 10 10
POP 12HR 40 30 20 0 5
RAIN SHWRS SC SC SC IS
MIX HGT 2 5 3 1 <1 2 1 1 5 5 5 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR SW W W NW NW NW N N N N N N N N N NE NE NE NE NE
T WIND SPD 8 21 14 19 23 19 9 25 25 23 19 8 8 8 9 6 16 12 12 4
DISPERSION PR PR PR VP PR PR VP VP VP
ADI 19136 35 13 15 13 6 48100 98 81 4 4 4 4 7 56 53 46 2
MAX LVORI 4 1 1 4 4 4 5 4 3 1 1 3 3 3 3 3 1 1 1 3
STABILITY B B D E E E E B C C C F F G G B B B B G
CEILING None None None 2500 None None None None None None
STA PRES 28.41 28.32 28.41 28.51 28.67 28.76 28.89 28.94 29.04 28.98
Date Mon 10/19/26Tue 10/20/26Wed 10/21/26Thu 10/22/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 35 64 41 70 44 70 43 67
TEMP 39 36 61 53 44 42 67 59 48 45 68 59 48 44 66 58
DEWPT 33 32 41 43 40 38 46 46 45 42 47 47 46 44 49 48
RH 79 85 48 69 86 86 47 62 89 89 47 64 93100 54 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC FW SC FW FW FW FW FW FW FW FW FW FW
POP 12HR 5 10 5 0 0 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