Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Oct 20 2026
VAZ018-202000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Tue Oct 20 2026
Date Tue 10/20/26 Wed 10/21/26 Thu 10/22/26
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 71 44 69 41 70
TEMP 60 70 69 56 51 50 47 44 58 68 67 55 49 46 43 42 59 69 66 55
DEWPT 32 33 37 38 39 40 39 39 43 42 43 46 44 41 40 38 42 39 41 43
MAX/MIN RH 25 84 38 90 34
RH 35 25 31 51 63 68 74 82 57 39 42 72 83 83 89 86 53 33 40 64
WIND DIR NE NE N N N N N N NE N N NW NW W NW NW NW NW NW NW
WIND SPD 2 3 1 2 2 2 2 2 1 2 1 2 2 2 4 5 3 4 5 5
WIND GUST 17
CLOUDS CL CL CL CL CL CL CL FW CL CL CL CL CL CL CL FW FW CL CL CL
CLOUDS(%) 2 3 2 1 5 4 2 8 1 3 4 1 3 3 4 7 6 2 2 0
VSBY 10 10 10 10 10 10 10 6 9 10 10 10 10 10 5 0 3 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE N N NE N N N N N N N NW NW NW NW NW NW NW N NW
T WIND SPD 14 10 9 2 3 4 4 3 6 9 8 3 5 5 6 8 8 12 14 8
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 29 35 19 1 2 2 2 4 14 36 33 2 3 3 3 8 16 50 55 4
MAX LVORI 2 1 2 3 4 4 5 6 3 1 1 3 5 5 6 5 2 1 1 3
STABILITY B B A G G G G B A B A G G G F B B B B F
CEILING None None None None None None None None None None
STA PRES 28.03 27.99 28.00 27.98 27.98 27.90 27.90 27.87 27.89 27.88
Date Fri 10/23/26Sat 10/24/26Sun 10/25/26Mon 10/26/26
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 45 65 39 61 41 67 44 71
TEMP 49 45 63 50 43 40 58 50 44 42 64 55 48 45 68 59
DEWPT 43 42 44 42 37 36 38 40 37 36 40 42 38 38 44 47
RH 80 89 50 74 79 85 47 68 76 79 41 61 68 76 42 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL CL FW FW CL CL 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