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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Fri Oct 16 2026
NCZ003-170800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
231 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 50 57 39 57 40
TEMP 80 68 62 57 53 50 51 55 56 48 45 42 40 39 48 55 57 48 44 42 41 40
DEWPT 65 65 57 51 47 48 49 44 39 37 34 32 29 27 27 29 31 32 31 31 31 32
MIN/MAX RH 100 54 66 37 71
RH 60 90 84 80 80 93 93 66 53 65 65 67 64 62 44 37 37 54 60 65 67 73
WIND DIR SW W NW N N N N N N N N N N N NE NE NE NE NE N N N
WIND SPD 8 8 14 14 11 9 10 10 11 10 9 8 9 8 11 10 10 6 9 10 10 8
WIND GUST 21 21 21 23 20 20
CLOUDS SC B1 SC B2 OV B2 B1 SC FW CL CL CL CL CL CL FW FW FW FW FW FW FW
CLOUDS(%) 50 64 49 75 94 86 60 46 19 4 3 1 1 0 5 9 14 14 11 13 13 15
VSBY 10 10 10 10 10 6 7 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 60 0 5 5
RAIN SHWRS IS SC IS SC NM NM
TSTMS IS
MIX HGT 3 <1 <1 <1 <1 1 3 5 5 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR SW W NW N N N N N N N N N N NE NE NE NE NE
T WIND SPD 13 9 17 18 20 19 27 20 19 9 8 8 8 8 23 20 18 8
DISPERSION PR GD GD FR FR PR PR PR PR PR FR FR
ADI 45 8 15 16 19 27 69 86 80 6 5 5 5 8 76 72 62 4
MAX LVORI 1 6 4 3 3 4 4 1 1 3 3 3 3 3 1 1 1 2
STABILITY B D D D D D D C C E E E E B C C C F
CEILING None 3100 2800 1000 None None None None None None
STA PRES 28.79 28.85 28.95 29.13 29.21 29.34 29.40 29.47 29.41
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 62 45 69 49 68 49 67 49 70
TEMP 59 54 47 46 66 59 52 50 65 59 52 50 65 59 52 50 68 60
DEWPT 41 43 40 40 47 48 45 44 49 50 48 47 52 53 50 49 53 53
RH 51 66 76 79 50 67 77 80 56 72 86 89 63 80 93 96 59 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC FW FW FW FW FW FW FW SC SC FW SC SC FW FW SC
POP 12HR 10 10 5 10 5 10 5 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