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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EDT Wed Oct 21 2026
VAZ018-212000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
701 AM EDT Wed Oct 21 2026
Date Wed 10/21/26 Thu 10/22/26 Fri 10/23/26
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 65 43 65 41 63
TEMP 42 55 64 64 54 49 47 43 43 56 64 65 51 46 45 42 42 56 63 61 49
DEWPT 34 38 37 38 39 38 35 35 32 32 32 35 36 35 35 36 37 45 44 42 41
MAX/MIN RH 35 72 30 83 48
RH 73 53 37 38 57 66 63 73 65 40 30 33 56 65 68 79 82 66 50 49 74
WIND DIR N NE N N NW NW NW NW NW NW NW NW NW NW NW NW N NE E E E
WIND SPD 2 1 2 2 3 3 3 4 5 3 3 4 5 3 2 2 2 3 3 3 2
WIND GUST 13 18 13
CLOUDS CL CL CL CL CL CL CL FW FW FW CL CL CL CL CL CL CL FW FW CL CL
CLOUDS(%) 2 2 3 3 1 5 5 11 12 13 3 4 1 3 4 4 4 8 6 2 0
VSBY 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 7 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 2 3 3 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR NW N N N NW NW NW NW NW NW N N NW NW NW NW N NE NE NE E
T WIND SPD 3 8 10 8 5 5 5 5 6 5 8 10 10 5 4 3 5 13 8 8 4
DISPERSION VP VP VP VP PR VP VP VP VP
ADI 4 16 41 30 3 3 3 3 7 10 33 40 5 3 2 2 6 47 36 32 2
MAX LVORI 3 2 1 2 3 4 4 5 4 2 1 1 3 3 3 4 4 1 1 1 3
STABILITY B A B B G G G F B B B B F G G G B B B B G
CEILING None None None None None None None None None None
STA PRES 27.96 27.89 27.89 27.86 27.89 27.88 27.95 27.99 28.07 28.06
Date Sat 10/24/26Sun 10/25/26Mon 10/26/26Tue 10/27/26
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 37 60 38 64 40 69 45 68
TEMP 42 38 59 48 42 39 62 52 45 42 67 57 49 46 67 57
DEWPT 36 32 37 36 34 33 40 40 37 35 42 44 41 39 47 46
RH 79 79 44 63 73 79 44 63 73 76 40 62 74 76 49 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW CL CL FW FW FW FW FW FW FW FW SC SC SC
POP 12HR 0 0 0 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