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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Thu Oct 22 2026
VAZ024-230800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
301 PM EDT Thu Oct 22 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 40 69 38 66 36
TEMP 68 58 52 48 45 42 57 65 67 56 50 46 43 40 54 63 64 54 42 40 38 37
DEWPT 34 33 33 33 34 38 44 44 43 41 39 36 34 33 46 41 36 40 42 40 38 37
MIN/MAX RH 84 41 74 36 100
RH 28 39 48 56 65 86 62 46 42 57 66 68 70 76 74 44 35 59100100100100
WIND DIR N N N N N N NE NE NE E E E E E E E E E N N N N
WIND SPD 4 4 4 3 3 4 6 5 5 2 2 2 1 1 1 2 3 1 0 0 0 0
CLOUDS CL CL CL CL CL CL FW FW FW FW FW FW FW SC FW CL CL CL CL CL CL CL
CLOUDS(%) 0 0 0 0 0 0 8 20 18 16 11 8 17 39 9 0 0 1 3 5 5 5
VSBY 10 10 10 10 10 10 8 10 10 10 10 10 2 0 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 <1 <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR N NE N NW N N NE NE E E E NE NE E E E E E
T WIND SPD 9 3 4 4 4 4 10 5 5 10 9 4 3 8 6 5 5 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 22 2 2 2 2 5 33 27 24 5 4 2 2 8 25 23 22 2
MAX LVORI 2 2 2 3 3 5 1 2 2 3 3 3 3 3 3 2 2 3
STABILITY B F F G G B B B B G G G G A A B B G
CEILING None None None None None None None None None
STA PRES 28.67 28.71 28.78 28.80 28.88 28.93 28.98 28.96
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 67 37 73 41 74 45 67 46 70
TEMP 65 55 42 38 70 59 44 42 71 61 48 46 66 58 48 46 69 60
DEWPT 45 46 42 38 43 45 44 42 49 50 48 45 50 50 48 46 52 51
RH 48 72100100 38 60100100 46 67100 96 56 75100100 55 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL FW FW CL FW FW FW FW SC 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