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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Oct 16 2026
VAZ046-162000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Fri Oct 16 2026
Date Fri 10/16/26 Sat 10/17/26 Sun 10/18/26
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 85 51 57 38 57
TEMP 73 82 83 72 65 58 54 51 52 54 55 48 45 42 39 38 49 55 56 49
DEWPT 67 66 66 65 58 55 52 50 47 42 37 36 34 32 29 28 30 31 33 35
MAX/MIN RH 55 96 52 69 39
RH 81 58 57 79 78 90 93 96 83 64 51 63 65 67 67 67 48 40 42 58
WIND DIR SW SW SW W N N N N N N N N N N N NE NE NE NE NE
WIND SPD 9 11 10 8 9 6 8 11 13 13 12 9 8 6 9 11 13 13 11 5
WIND GUST 24 18 24 16
CLOUDS SC FW SC B2 B1 OV B2 SC SC SC FW SC FW FW FW FW FW FW FW SC
CLOUDS(%) 30 8 43 87 66 92 80 50 41 28 20 28 15 20 20 10 10 20 20 27
VSBY 10 10 7 6 6 9 7 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 70 30 5 5
RAIN SHWRS IS NM SC SC NM SC IS
MIX HGT 1 5 4 <1 <1 <1 <1 1 4 5 5 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR SW SW SW SW N N N N N N N N N N N NE NE NE NE NE
T WIND SPD 11 14 19 10 23 11 16 20 28 21 24 9 12 13 14 13 21 18 18 5
DISPERSION PR PR PR PR PR PR PR PR PR
ADI 21 61 76 9 21 8 14 36 82 93103 6 8 6 10 11 52 66 62 3
MAX LVORI 4 1 1 4 3 5 5 4 4 1 1 3 3 3 3 3 1 1 1 3
STABILITY C C C D D E D C D C C E E F E C D C C F
CEILING None None 3100 3400 None None None None None None
STA PRES 29.21 29.09 29.18 29.31 29.49 29.58 29.71 29.77 29.87 29.82
Date Mon 10/19/26Tue 10/20/26Wed 10/21/26Thu 10/22/26
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 39 60 44 67 48 66 47 65
TEMP 41 40 59 53 46 45 64 57 50 49 65 58 51 48 63 57
DEWPT 35 35 43 45 43 42 48 48 47 45 50 50 49 47 51 51
RH 79 82 55 74 89 89 56 72 89 86 58 75 93 96 65 80
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 10 10 10 5 0 5 5 0
$$
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