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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Fri Oct 30 2026
NCZ001-310800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
401 PM EDT Fri Oct 30 2026
Date 10/30/26 Sat 10/31/26 Sun 11/01/26 Mon
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 43 57 45 54 44
TEMP 63 57 54 51 48 45 49 55 53 49 49 49 48 46 47 53 51 48 48 47 46 45
DEWPT 42 34 28 25 29 32 35 38 38 39 37 35 34 35 33 34 34 36 34 34 35 36
MIN/MAX RH 61 42 68 48 72
RH 46 42 36 36 47 60 58 53 57 68 63 58 58 65 58 48 52 63 58 60 65 70
WIND DIR N N NE E E SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE SE
WIND SPD 6 8 6 6 6 6 8 5 5 5 8 8 8 6 8 6 5 5 6 8 6 6
CLOUDS FW FW SC SC SC B1 B1 B2 B2 OV OV OV OV OV B2 B2 B2 OV B2 B2 B2 B2
CLOUDS(%) 11 20 34 41 35 56 59 84 72 97 94 93 92 93 85 87 80 89 83 84 80 73
VSBY 10 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 10
MIX HGT 3 <1 <1 <1 <1 <1 1 1 1 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR N N N N NE E SE SE SE SE SE SE SE SE SE SE SE E
T WIND SPD 11 4 4 3 2 2 8 8 5 3 5 5 5 5 10 10 6 4
DISPERSION PR PR PR PR PR PR PR PR PR PR PR PR
ADI 40 3 2 2 1 2 11 14 8 2 5 5 5 6 15 22 11 3
MAX LVORI 1 4 3 2 2 3 2 2 2 3 3 3 3 3 2 2 2 3
STABILITY B E F E F B B C C E D D D D D C D E
CEILING None None 17300 14600 13200 8700 6000 7300 6900
STA PRES 26.96 26.99 27.05 27.03 27.06 27.05 27.07 27.02
Date 11/02Tue 11/03/26Wed 11/04/26Thu 11/05/26Fri 11/06/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 55 47 57 52 58 54 59 49 56
TEMP 54 51 49 48 54 53 54 53 55 56 56 55 57 56 53 51 54 51
DEWPT 41 44 44 45 49 50 51 53 55 55 55 54 55 53 50 49 49 48
RH 61 77 83 89 83 89 90100100 96 96 96 93 90 89 93 83 89
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR 10 5 10 30 50 60 60 40 30
RAIN SHWRS SC SC SC SC NM NM 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