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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 17 2026
NCZ006-172000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 AM EDT Sat Oct 17 2026
Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26
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 56 38 58 39 63
TEMP 53 54 55 49 46 43 40 39 49 56 57 49 45 42 41 40 54 61 62 54
DEWPT 51 47 44 39 36 34 31 30 33 34 36 36 35 35 34 34 41 44 46 45
MAX/MIN RH 65 72 43 81 54
RH 93 77 66 68 68 70 70 70 54 43 45 61 68 76 76 79 61 53 56 71
WIND DIR N N N N N N N N NE NE NE NE N N N N N N N N
WIND SPD 12 13 11 8 6 6 8 9 11 11 10 6 6 6 9 11 11 10 9 5
WIND GUST 24 25 21 21 21 20 19
CLOUDS OV B1 SC FW FW CL CL CL CL CL CL CL FW FW SC FW FW SC SC SC
CLOUDS(%) 90 67 48 15 6 3 1 2 1 2 3 5 13 14 26 21 20 32 35 39
VSBY 6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 0 0 5 5
RAIN SHWRS SC
MIX HGT 2 4 4 <1 <1 <1 <1 1 3 4 4 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR N N N N N N N N NE NE NE NE NE N N N NE NE NE NE
T WIND SPD 29 25 23 11 12 12 11 11 19 20 18 9 8 8 8 9 19 20 21 10
DISPERSION PR PR PR PR PR PR PR PR PR
ADI 64 68 88 8 6 6 8 15 58 74 65 4 4 4 5 7 57 69 74 5
MAX LVORI 4 4 1 3 3 3 3 3 1 1 1 3 3 3 4 4 1 1 1 3
STABILITY D D C E F F E C C C C F F F E C C C C F
CEILING 1100 None None None None None None None None None
STA PRES 29.52 29.62 29.75 29.81 29.89 29.83 29.83 29.79 29.76 29.65
Date Tue 10/20/26Wed 10/21/26Thu 10/22/26Fri 10/23/26
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 42 70 45 68 44 68 46 71
TEMP 47 44 69 60 49 47 67 59 49 46 66 59 50 47 69 60
DEWPT 41 39 45 47 43 43 51 51 47 46 51 52 49 47 53 52
RH 79 82 42 62 80 86 56 75 93100 58 78 96100 57 75
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC FW
POP 12HR 5 5 5 5 5 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