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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Fri Oct 23 2026
VAZ046-232000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1031 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 68 36 62 36 65
TEMP 60 65 65 51 45 41 38 37 54 60 60 50 44 40 38 37 55 64 64 50
DEWPT 44 41 42 44 42 41 38 37 42 39 39 41 41 40 37 36 44 44 42 45
MAX/MIN RH 41 100 43 99 45
RH 55 41 43 77 89100100100 64 46 46 71 89100 96 96 66 48 45 83
WIND DIR NE NE NE NE NE NE N N NE NE NE NE NE N N N NE NE E NE
WIND SPD 12 11 11 5 4 4 4 4 6 5 6 3 3 2 3 4 5 4 3 2
CLOUDS CL CL CL CL FW FW FW SC CL CL CL CL CL CL FW FW FW FW CL CL
CLOUDS(%) 0 0 0 1 6 9 20 39 4 2 4 1 5 5 12 15 18 7 4 1
VSBY 10 10 10 10 10 10 10 9 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 4 4 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR N NE NE NE E NE NE NE E E E NE E NE NE NE NE E E NE
T WIND SPD 14 12 12 10 8 9 6 8 10 8 9 6 8 6 5 5 8 6 6 5
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 42 47 47 5 4 4 3 8 39 39 46 3 4 3 3 6 27 31 31 3
MAX LVORI 1 1 1 3 6 9 9 8 3 1 1 3 6 9 9 8 3 1 1 5
STABILITY C C C F F F F B B B B G G G G B B B B G
CEILING None None None None None None None None None
STA PRES 29.60 29.70 29.76 29.79 29.75 29.80 29.82 29.83 29.74
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 36 69 41 70 44 64 44 68
TEMP 39 36 68 55 43 43 68 58 46 45 62 55 47 45 66 57
DEWPT 39 36 41 43 42 42 47 48 46 44 47 49 47 45 50 51
RH 100100 37 64 96 96 47 69100 96 58 80100100 56 80
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL CL FW CL FW FW SC B1 SC B1 B1 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