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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 AM EDT Fri Oct 16 2026
NCZ005-170800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
1201 AM EDT Fri Oct 16 2026
Date 10/15/26 Fri 10/16/26 Sat 10/17/26 Sun
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 61 85 51 58 39
TEMP 65 63 63 75 84 83 73 64 57 54 51 53 55 56 49 46 43 40 40
DEWPT 65 63 63 67 67 66 66 61 54 49 49 50 47 43 40 36 34 31 30
MIN/MAX RH 100 55 97 62 70
RH 100100100 76 57 57 79 90 90 83 93 89 74 62 71 68 70 70 67
WIND DIR E S SW SW SW SW W NW N N N N N N N N N N NE
WIND SPD 1 1 4 8 10 10 6 9 10 9 10 13 12 12 8 6 6 8 10
WIND GUST 23 20
CLOUDS B1 B1 SC FW FW FW B2 B1 B2 B1 B1 B1 SC FW FW FW FW FW CL
CLOUDS(%) 58 54 39 10 14 25 78 65 82 68 63 53 33 17 6 8 8 8 5
VSBY 9 5 2 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 20 80 50 5
RAIN SHWRS NM SC IS IS SC SC
MIX HGT <1 <1 <1 2 5 4 <1 <1 2 1 2 4 5 5 <1
T WIND DIR E S S SW SW SW SW NW NW NW NW N N N N
T WIND SPD 2 2 3 16 19 21 12 26 26 25 17 26 25 23 11
DISPERSION VP VP PR PR FR PR PR PR PR PR
ADI 1 1 4 35 78 85 11 24 30 23 37 77107 96 8
MAX LVORI 10 10 9 3 1 1 4 4 3 3 4 3 1 1 3
STABILITY F F B B C C D D D D C D C C E
CEILING None None None 4100 7200 None None None
STA PRES 29.27 29.19 29.07 29.19 29.32 29.48 29.58
Date 10/18Mon 10/19/26Tue 10/20/26Wed 10/21/26Thu 10/22/26
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 57 39 61 44 68 47 68 47 67
TEMP 55 49 42 40 59 54 47 45 67 56 50 48 68 56 50 48 66 56
DEWPT 33 34 34 35 45 47 43 42 49 50 46 44 50 50 48 47 52 52
RH 43 56 73 82 60 77 86 89 52 80 86 86 52 80 93 96 61 86
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC SC FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 5 10 10 5 0 5 0 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