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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Oct 16 2026
NCZ003-170800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Fri Oct 16 2026
Date 10/16/26 Sat 10/17/26 Sun 10/18/26 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 47 57 37 60 38
TEMP 59 54 49 47 51 55 56 48 44 41 38 37 50 58 59 50 43 41 39 40
DEWPT 54 48 45 46 48 43 40 36 34 32 29 26 29 31 34 34 31 31 30 30
MIN/MAX RH 100 54 70 36 69
RH 83 80 86 96 89 64 55 63 68 70 70 64 44 36 39 54 62 67 70 67
WIND DIR NW NW NW N N N N N N N N N NE NE NE NE N N N N
WIND SPD 12 12 10 9 12 12 12 8 6 4 4 5 6 6 6 3 3 2 4 6
WIND GUST 26 26 24 24 25 23 23 20 17
CLOUDS SC SC OV B1 SC FW CL CL CL CL CL CL CL FW FW FW FW FW FW FW
CLOUDS(%) 38 49 94 60 36 8 3 2 2 2 2 2 5 8 9 10 9 13 14 14
VSBY 10 10 10 8 7 10 10 10 10 10 10 1 10 10 10 10
POP 12HR 80 40 0 0 5
RAIN SHWRS IS NM SC
MIX HGT 1 1 2 1 3 4 4 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR N N N N N N N N N N N N NE NE NE NE
T WIND SPD 25 29 25 20 29 23 24 14 10 8 8 6 17 17 14 6
DISPERSION FR FR FR PR PR VP VP VP VP VP VP
ADI 23 33 28 27 97 89 88 10 5 4 4 7 63 70 60 3
MAX LVORI 4 3 4 4 4 1 1 2 3 3 3 3 1 1 1 2
STABILITY D D D D C C C E F F F B B B B G
CEILING None 1900 None None None None None None None
STA PRES 28.03 28.11 28.27 28.36 28.48 28.53 28.60 28.54
Date 10/19Tue 10/20/26Wed 10/21/26Thu 10/22/26Fri 10/23/26
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 64 44 70 48 70 48 69 49 72
TEMP 61 55 47 46 68 60 52 50 67 60 51 49 67 61 52 50 70 61
DEWPT 43 44 40 38 48 49 45 42 51 52 48 47 53 54 50 48 55 54
RH 51 66 76 73 49 67 77 74 56 75 89 93 61 78 93 93 59 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC FW SC SC
POP 12HR 10 5 5 10 5 10 10 5 5
$$
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