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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
318 AM EDT Sat Oct 17 2026
VAZ046-172000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
318 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 37 57 39 62
TEMP 56 52 51 54 55 48 45 41 39 38 49 55 56 48 44 41 40 41 54 59 61 53
DEWPT 54 51 49 43 37 36 34 32 30 29 30 31 33 34 34 34 33 33 38 41 42 42
MAX/MIN RH 51 70 39 78 48
RH 93 96 93 66 51 63 65 70 70 70 48 40 42 58 68 76 76 73 54 51 49 66
WIND DIR N N N N N N N N NE NE NE NE NE NE N N N N N N NE NE
WIND SPD 8 12 13 13 12 8 6 8 9 10 12 12 10 6 5 9 11 12 12 12 10 5
WIND GUST 24 24 25 23 16 20 23 23 23 16
CLOUDS OV OV B2 B1 FW FW FW CL CL CL CL CL CL CL FW FW FW FW FW FW SC SC
CLOUDS(%) 100 98 78 62 19 8 8 4 2 0 1 1 3 5 9 10 18 20 16 25 32 28
VSBY 6 6 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 0 0 0 5
RAIN SHWRS O O IS
MIX HGT 1 2 3 5 5 <1 <1 <1 <1 <1 3 4 3 <1 <1 <1 <1 <1 3 3 3 <1
T WIND DIR N N N N N N N N N N NE NE NE NE N N N N NE NE N NE
T WIND SPD 13 29 27 25 23 12 12 11 5 6 18 16 14 4 4 4 5 6 19 18 18 9
DISPERSION PR PR PR PR PR PR PR PR FR PR
ADI 12 51 66 77 93 8 6 8 4 5 56 58 49 2 2 3 4 5 56 61 58 4
MAX LVORI 5 4 4 1 1 3 3 3 3 3 1 1 1 3 3 4 4 3 1 1 1 3
STABILITY D D D D C E F E E C C C C F F E E C C C C F
CEILING 1200 None None None None None None None None None
STA PRES 29.48 29.58 29.70 29.77 29.85 29.80 29.80 29.75 29.73 29.63
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 44 69 47 66 45 66 47 68
TEMP 46 46 68 58 50 48 64 57 49 46 63 58 51 48 67 59
DEWPT 40 38 42 45 44 44 48 48 47 45 49 50 49 48 51 50
RH 79 73 39 62 80 86 56 72 93 96 60 75 93100 56 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW SC FW FW FW FW FW FW SC SC SC SC SC SC SC
POP 12HR 5 5 0 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