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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Oct 23 2026
NCZ003-232000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Fri Oct 23 2026
Date Fri 10/23/26 Sat 10/24/26 Sun 10/25/26
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 39 63 38 63
TEMP 58 64 64 52 47 44 43 40 53 58 59 50 47 43 41 39 52 61 62 53
DEWPT 41 42 42 43 43 41 42 40 43 43 42 40 40 40 38 39 46 47 46 47
MAX/MIN RH 43 100 47 99 54
RH 53 45 45 71 86 89 96100 69 57 53 68 76 89 89100 80 60 56 80
WIND DIR E E E NE NE N N N E E E NE N N N N E E E N
WIND SPD 2 3 4 1 1 1 0 1 3 3 4 1 1 0 1 1 2 3 3 0
CLOUDS CL CL FW CL CL FW SC SC FW CL CL CL CL FW FW FW FW FW CL CL
CLOUDS(%) 2 3 11 5 3 25 41 36 24 5 2 2 1 6 10 12 13 10 5 5
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 4 4 <1 <1 <1 <1 <1 3 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR E NE E E E E E NE E E E E NE E NE N E E E NE
T WIND SPD 6 5 6 6 8 6 6 6 8 5 6 5 5 6 6 6 6 5 5 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 22 28 32 3 4 3 3 7 26 22 25 3 3 3 3 7 19 24 22 2
MAX LVORI 2 2 1 3 5 6 6 8 3 2 2 3 4 6 6 8 3 2 2 5
STABILITY B B B G G G F A B B B G G G G A B B B G
CEILING None None None None None None None None None None
STA PRES 28.36 28.36 28.45 28.49 28.53 28.49 28.54 28.56 28.57 28.50
Date Mon 10/26/26Tue 10/27/26Wed 10/28/26Thu 10/29/26
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 39 70 41 72 45 66 44 70
TEMP 43 39 67 57 46 43 70 60 49 46 64 57 48 45 67 59
DEWPT 41 38 42 46 40 38 46 50 45 43 48 50 45 44 51 52
RH 93 96 40 67 79 82 42 69 86 89 56 77 89 96 56 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW CL CL CL FW FW FW FW SC SC SC SC 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