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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 31 2026
VAZ012-312000-
RAWS 447502
37.01N 81.18W Elev. 2540 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 67 42 65 41 64
TEMP 55 62 64 53 50 47 44 42 53 61 62 52 48 46 43 42 52 59 63 54
DEWPT 38 37 37 39 38 36 35 34 38 35 33 37 36 35 35 36 41 40 40 44
MAX/MIN RH 35 75 32 79 42
RH 53 39 37 59 63 65 70 73 57 38 33 56 63 65 73 79 66 49 43 69
WIND DIR SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE N SE SE SE SE
WIND SPD 1 2 1 1 2 1 1 1 2 2 2 1 1 1 1 0 1 2 1 1
CLOUDS B2 B1 B2 B2 B2 OV OV B2 B1 B1 B1 B2 B2 B1 B2 B2 B2 B2 B1 B1
CLOUDS(%) 82 66 79 72 86 90 90 81 55 60 51 71 72 69 82 81 83 77 67 62
VSBY 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 10
MIX HGT 1 2 1 <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE S S SE SE
T WIND SPD 8 6 6 4 3 4 3 2 9 6 11 8 4 3 3 3 3 5 6 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 11 17 12 2 2 2 2 2 18 21 29 4 2 2 2 3 5 15 16 2
MAX LVORI 2 2 2 3 3 3 3 3 2 2 2 3 3 3 3 4 3 2 2 3
STABILITY A B A F F F F B B B B F F F F C C C C F
CEILING 19200 17600 15900 10100 8900 None 7900 8700 7000 6900
STA PRES 27.62 27.60 27.64 27.63 27.65 27.60 27.59 27.58 27.60 27.52
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 40 68 50 68 53 70 49 68
TEMP 45 41 64 58 53 53 63 60 56 55 66 59 54 51 63 56
DEWPT 42 41 51 52 51 53 59 58 56 55 59 56 53 51 53 51
RH 89100 63 80 93100 87 93100100 78 90 96100 70 83
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B2 B1
POP 12HR 0 5 10 60 60 60 40 40
RAIN SHWRS SC NM NM NM SC NM 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