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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 31 2026
NCZ003-312000-
RAWS 310302
36.35N 80.48W Elev. 1076 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 47 64 47 65
TEMP 55 61 62 54 51 50 48 47 56 62 62 54 51 49 48 47 56 62 64 56
DEWPT 41 39 39 41 41 40 39 39 43 40 40 41 40 39 39 40 46 46 47 49
MAX/MIN RH 41 75 42 76 53
RH 59 44 43 61 68 68 71 74 62 44 44 61 66 68 71 76 69 56 54 77
WIND DIR NE NE E E E E NE NE E E E E NE NE NE NE NE E E NE
WIND SPD 6 4 3 2 3 3 3 3 4 4 3 3 3 3 3 3 3 3 3 2
CLOUDS B1 B2 B1 B2 B2 B2 OV B2 B1 SC SC SC B1 B2 B2 B2 B2 B2 B1 B1
CLOUDS(%) 64 77 68 74 82 85 88 78 54 47 46 36 69 75 80 81 78 72 60 65
VSBY 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 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 E NE N NE NE N E E E NE NE N N N E NE E NW
T WIND SPD 13 8 6 2 2 3 3 3 8 8 5 3 3 2 2 3 4 3 6 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 33 26 21 1 1 2 2 4 21 30 21 2 2 1 1 4 11 12 25 1
MAX LVORI 1 2 2 3 3 3 3 3 2 1 2 3 3 3 3 4 3 2 2 4
STABILITY B B B F F F F B C B B G F F F B B B B F
CEILING 20400 17700 15800 11600 None None 12700 9000 8100 7200
STA PRES 29.38 29.36 29.41 29.40 29.43 29.37 29.36 29.35 29.36 29.28
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 47 69 55 68 58 72 55 71
TEMP 49 47 65 61 57 57 65 64 60 59 69 65 57 56 68 62
DEWPT 46 47 55 56 55 57 64 63 60 59 64 62 57 56 60 57
RH 89100 70 84 93100 97 97100100 84 90100100 76 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR 0 5 20 60 60 60 50 40
RAIN SHWRS IS SC NM NM 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