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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 31 2026
VAZ046-312000-
RAWS 441101
37.39N 78.80W Elev. 804 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 66 42 66
TEMP 56 63 63 53 49 47 44 43 58 64 64 53 48 45 44 43 57 64 65 57
DEWPT 40 39 39 41 41 41 40 39 43 40 39 41 41 41 41 41 47 45 46 48
MAX/MIN RH 41 87 39 97 48
RH 55 41 41 64 74 79 86 86 57 41 40 64 77 86 89 93 69 50 50 72
WIND DIR NE NE E E NE NE NE NE E E E E E E N NW SW SE SE E
WIND SPD 6 4 3 1 1 1 1 2 3 4 4 1 1 1 2 2 2 3 3 1
CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1
CLOUDS(%) 51 64 53 58 56 71 81 78 43 36 60 26 49 50 60 67 66 62 59 54
VSBY 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 0 0 0
MIX HGT 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE NE NE E N N N N E E E SE E N NE W SW S SE SE
T WIND SPD 11 6 6 4 2 2 2 2 4 3 4 2 2 1 1 2 3 2 4 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 31 22 22 2 1 1 1 2 14 14 13 1 1 1 1 2 8 8 15 3
MAX LVORI 1 2 2 3 3 4 5 6 2 2 2 3 4 6 7 8 3 2 2 3
STABILITY C C B F F F F B B B C G F F F B B B B F
CEILING 15400 None 10700 10700 None None None 9700 11400 11000
STA PRES 29.76 29.74 29.79 29.78 29.81 29.75 29.74 29.72 29.73 29.64
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 43 70 52 72 57 72 57 71
TEMP 46 45 68 61 54 54 68 65 60 58 69 65 60 57 69 63
DEWPT 46 45 54 55 54 54 63 63 60 58 64 63 60 57 61 59
RH 100100 61 81100100 84 93100100 84 93100100 76 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B2 B2 B1 B2 B2 B2 B2 B1 B1 B1
POP 12HR 0 0 5 30 50 60 50 50
RAIN SHWRS IS SC SC SC 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