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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Fri Oct 23 2026
VAZ024-240800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 AM EDT Fri Oct 23 2026
Date 10/22/26 Fri 10/23/26 Sat 10/24/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 43 65 35 63 35
TEMP 45 43 57 64 64 51 46 40 38 37 53 59 59 48 43 38 36 35
DEWPT 34 35 42 41 41 40 40 38 37 37 42 38 36 37 38 38 35 34
MIN/MAX RH 73 41 100 37 98
RH 65 73 57 43 43 66 79 92 96100 66 45 42 65 82100 96 96
WIND DIR NW N NE NE E NE NE N N N E E E E N N N N
WIND SPD 1 2 2 3 3 2 1 0 0 0 1 2 3 1 0 0 0 0
CLOUDS CL CL CL FW FW FW FW FW FW SC FW FW CL CL CL FW FW FW
CLOUDS(%) 2 1 4 6 9 8 11 12 11 26 15 9 2 2 2 6 7 10
VSBY 10 10 10 10 10 9 10 6 5 5 6 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 3 4 4 <1 <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1
T WIND DIR N N N NE NE E E E NE NE E E E E E NE N N
T WIND SPD 6 8 10 8 6 6 6 5 4 4 6 5 5 6 4 4 3 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 3 8 33 39 31 3 3 3 2 4 23 25 22 3 2 2 2 4
MAX LVORI 3 3 1 1 1 3 4 6 8 7 3 2 2 3 5 9 8 7
STABILITY G B B B B G G G G A A B B G G G G A
CEILING None None None None None None None None None
STA PRES 28.67 28.73 28.74 28.83 28.88 28.91 28.88 28.92 28.94
Date 10/25Mon 10/26/26Tue 10/27/26Wed 10/28/26Thu 10/29/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 65 36 72 39 73 43 66 42 70
TEMP 63 52 41 37 69 59 44 40 70 60 47 43 65 57 47 43 67 59
DEWPT 43 42 40 36 39 40 40 39 47 46 45 43 46 46 45 43 48 48
RH 48 69 96 96 33 49 86 96 44 60 93100 50 67 93100 50 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL CL CL CL CL FW FW FW FW SC B1 B1 SC B1 SC SC
POP 12HR 0 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