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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Wed Oct 28 2026
NCZ003-282000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
331 AM EDT Wed Oct 28 2026
Date Wed 10/28/26 Thu 10/29/26 Fri 10/30/26
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 50 74 48 78
TEMP 48 49 59 65 65 57 53 52 52 51 63 71 72 59 53 49 48 51 70 77 76 63
DEWPT 46 46 50 50 51 52 51 50 50 50 52 52 52 51 49 46 43 45 47 49 52 51
MAX/MIN RH 59 97 47 89 37
RH 93 89 72 58 60 83 93 93 93 96 67 51 49 75 86 89 83 80 44 37 43 65
WIND DIR N N E SE E N N N N N N S S N N NW NW NW NW N N N
WIND SPD 0 0 1 3 3 0 0 0 0 0 0 1 2 0 0 1 2 4 3 3 2 2
CLOUDS SC B1 B2 B2 B1 SC SC B2 B2 B1 SC FW CL FW FW FW FW FW FW FW FW FW
CLOUDS(%) 39 62 70 77 67 45 43 77 80 55 29 9 2 7 16 17 13 7 6 8 14 22
VSBY 10 10 10 10 10 10 10 10 5 5 7 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE N NE E E E NE N N N W NW N SW NW NW NW NW N NW N N
T WIND SPD 3 3 3 5 5 3 2 2 3 2 1 1 0 2 3 4 5 8 14 10 12 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 3 7 19 16 2 1 1 2 2 3 5 0 1 2 2 3 8 33 41 51 5
MAX LVORI 7 6 3 2 2 5 7 7 7 8 3 2 2 4 6 6 5 4 1 1 1 3
STABILITY G C C B B F F F F C A A B G G G G B B B B G
CEILING 100 21600 None 500 None None None None None None
STA PRES 28.44 28.40 28.41 28.36 28.37 28.30 28.28 28.27 28.29 28.29
Date Sat 10/31/26Sun 11/01/26Mon 11/02/26Tue 11/03/26
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 51 68 48 64 52 67 53 70
TEMP 54 52 65 59 51 50 60 58 54 53 64 60 55 54 67 63
DEWPT 49 46 45 50 46 46 53 55 53 53 59 58 54 54 62 60
RH 83 80 48 72 83 86 78 90 96100 84 93 96100 84 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B2 B2 B2 B2 OV B2 OV B2 B2 B1 B1 B1 B2
POP 12HR 0 0 5 30 70 40 30 30
RAIN SHWRS IS SC NM NM SC SC IS 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