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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 31 2026
VAZ024-312000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Sat Oct 31 2026
Date Sat 10/31/26 Sun 11/01/26 Mon 11/02/26
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 66 43 67 42 66
TEMP 53 65 65 55 50 47 44 43 54 65 65 54 49 46 44 42 52 64 65 57
DEWPT 41 40 41 42 42 41 40 39 44 42 41 42 41 40 39 39 46 45 45 47
MAX/MIN RH 40 88 41 89 46
RH 64 40 41 61 74 79 86 86 69 43 41 64 74 79 82 89 80 50 48 69
WIND DIR N E SE N N N N N N SE SE N N N N N N S SE N
WIND SPD 0 2 1 0 0 0 0 0 0 3 2 0 0 0 0 0 0 2 1 0
CLOUDS B1 B2 B2 B1 B1 OV OV B2 B1 SC SC SC B1 B1 B1 B2 B1 B1 B1 B1
CLOUDS(%) 61 72 73 69 57 94 88 77 51 48 43 33 59 64 61 71 68 61 55 63
VSBY 10 10 10 10 10 7 10 10 10 10 10 9
POP 12HR 0 5 0 0 0
MIX HGT 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE E E SE NE N N N SE SE SE SE E N N NW SW SW S SE
T WIND SPD 5 2 3 3 1 2 2 1 3 4 5 2 2 1 1 2 4 4 4 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 14 8 9 2 1 1 1 1 10 18 17 1 1 1 1 2 9 16 15 2
MAX LVORI 2 2 2 3 4 4 5 6 3 2 2 3 4 4 6 6 4 2 2 3
STABILITY A B B F F F F B B B B G F F F B B B B F
CEILING 22000 10500 11200 11500 None None None 10500 10500 10500
STA PRES 28.93 28.91 28.96 28.95 28.98 28.92 28.91 28.90 28.90 28.82
Date Tue 11/03/26Wed 11/04/26Thu 11/05/26Fri 11/06/26
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 41 70 52 69 55 72 53 71
TEMP 47 42 68 61 55 54 66 64 58 56 69 64 57 54 69 63
DEWPT 45 42 54 54 54 54 62 62 58 56 63 61 57 54 59 57
RH 93100 61 78 96100 87 93100100 81 90100100 70 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR 0 0 10 50 60 60 50 40
RAIN SHWRS SC SC SC NM NM SC SC SC SC SC
$$
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