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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 31 2026
NCZ005-312000-
RAWS 310540
36.38N 79.70W Elev. 858 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 45 66 45 67
TEMP 56 63 63 54 51 49 46 46 56 63 64 54 50 48 46 46 56 64 66 57
DEWPT 41 39 39 41 41 40 39 40 43 41 40 42 41 41 41 43 48 48 49 49
MAX/MIN RH 39 79 40 89 52
RH 57 41 41 61 68 71 76 79 62 44 41 64 71 77 83 89 74 56 54 75
WIND DIR NE NE NE NE NE NE NE NE NE E E E NE NE NE NE NE E E E
WIND SPD 6 5 4 2 1 1 2 2 4 5 4 2 1 1 1 2 3 4 3 2
CLOUDS B1 B1 B2 B1 B2 B2 B2 B2 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B1 B1
CLOUDS(%) 68 63 74 67 79 85 74 72 57 52 36 44 56 65 79 82 78 72 61 54
VSBY 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE NE NE NE NE NE NE N E E E E NE NE NE N E NE E E
T WIND SPD 12 6 6 3 2 2 2 2 8 8 6 4 2 2 2 2 3 2 5 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 31 23 22 2 1 1 1 2 21 26 27 2 1 1 1 2 8 7 22 1
MAX LVORI 1 2 2 3 3 3 4 4 2 2 2 3 3 4 5 6 4 3 2 4
STABILITY B B B F F F F B C C B F F F F B B C B F
CEILING 21000 21000 16900 14000 12700 None None 13000 9000 8900
STA PRES 29.71 29.69 29.74 29.74 29.77 29.70 29.69 29.68 29.69 29.61
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 46 71 55 72 59 73 57 72
TEMP 48 48 68 63 57 57 69 65 61 61 71 66 60 58 69 63
DEWPT 48 48 57 56 57 57 66 63 61 60 66 63 59 58 63 59
RH 100100 68 78100100 90 93100 97 84 90 96100 81 87
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 B1 B1
POP 12HR 0 0 10 50 50 50 50 50
RAIN SHWRS IS SC SC SC 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