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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Oct 30 2026
VAZ046-302000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Fri Oct 30 2026
Date Fri 10/30/26 Sat 10/31/26 Sun 11/01/26
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 79 43 64 42 66
TEMP 70 78 78 62 54 49 45 43 57 63 63 53 49 47 45 43 58 64 65 55
DEWPT 52 53 53 49 42 42 40 40 43 41 40 42 41 41 40 40 44 41 40 43
MAX/MIN RH 40 87 42 89 39
RH 53 42 42 62 64 77 82 89 59 44 43 66 74 79 82 89 59 43 40 64
WIND DIR NW NW N N NE NE NE NE NE NE NE E NE NE NE NE E E SE SE
WIND SPD 4 4 3 3 4 4 5 5 6 4 4 1 1 1 1 1 3 4 3 1
CLOUDS CL CL CL FW FW FW SC B1 SC B1 B1 OV B2 B2 B2 B2 B1 B1 B2 B2
CLOUDS(%) 1 2 2 10 22 17 38 58 39 59 69 92 87 83 86 79 63 62 72 75
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 1 5 3 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR W NW N N N NE NE NE NE NE NE E NE NE NE N SE S SE SE
T WIND SPD 6 11 12 5 6 6 5 4 11 5 4 4 1 1 1 1 4 4 4 5
DISPERSION VP VP VP PR VP VP VP VP VP
ADI 12 67 46 3 3 3 3 5 33 18 13 2 1 1 1 1 13 16 11 3
MAX LVORI 2 1 1 3 3 4 5 5 1 2 2 3 4 4 6 6 2 2 2 3
STABILITY B B B G F F F B B C C F F F F B B C B F
CEILING None None None None None 13800 16200 16300 11800 10600
STA PRES 29.46 29.48 29.61 29.68 29.75 29.72 29.75 29.74 29.75 29.68
Date Mon 11/02/26Tue 11/03/26Wed 11/04/26Thu 11/05/26
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 44 67 45 71 51 71 57 71
TEMP 47 45 65 57 49 47 69 62 54 53 68 64 59 57 69 63
DEWPT 43 44 49 50 49 47 55 56 54 53 62 62 59 57 59 57
RH 86 96 56 77100100 61 81100100 81 93100100 70 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 SC SC SC SC SC SC B1 B2 B2 B1 B2 B1 B1
POP 12HR 0 0 0 0 5 40 40 40
RAIN SHWRS SC 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