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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Wed Jul 15 2026
NCZ001-152000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 AM EDT Wed Jul 15 2026
Date Wed 07/15/26 Thu 07/16/26 Fri 07/17/26
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 81 63 81 65 80
TEMP 73 78 81 75 67 65 64 66 77 80 81 76 68 68 67 68 76 79 79 74
DEWPT 56 57 58 62 61 61 60 61 64 61 62 64 63 62 61 63 64 64 65 64
MAX/MIN RH 46 91 51 88 60
RH 55 48 46 64 81 87 87 84 64 52 53 66 84 81 81 84 66 60 62 71
WIND DIR N NE NE W NW NW NW NW N N NW NW NW NW NW NW NE SE SW W
WIND SPD 4 3 3 3 5 9 11 11 6 3 3 5 9 10 10 8 3 2 2 4
CLOUDS CL CL CL FW CL CL FW FW FW SC SC SC FW FW FW SC SC B1 B1 B1
CLOUDS(%) 1 2 4 7 1 4 9 20 23 37 35 48 15 11 23 48 48 65 65 59
VSBY 10 10 10 10 10 9 8 9 10 7 7 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 20 5 40
RAIN SHWRS IS IS IS SC SC SC
TSTMS IS IS SC SC SC
MIX HGT 3 5 5 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 4 4 2 <1
T WIND DIR N N NE SW W NW NW NW N N NW NW NW NW NW NW E SE S S
T WIND SPD 8 4 1 3 2 4 5 6 10 4 4 6 5 4 3 2 3 3 8 8
DISPERSION VP PR PR FR PR PR FR FR VP
ADI 30 28 7 2 1 3 4 5 40 29 21 5 4 3 2 2 16 16 17 5
MAX LVORI 2 2 2 3 5 5 6 5 3 2 2 3 4 5 5 5 3 3 3 3
STABILITY A A A G F E E C B A A E E E E B A B B E
CEILING None None None None None None None None None 1400
STA PRES 26.85 26.80 26.80 26.80 26.80 26.77 26.79 26.79 26.81 26.76
Date Sat 07/18/26Sun 07/19/26Mon 07/20/26Tue 07/21/26
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 65 76 64 76 63 78 64 78
TEMP 67 65 75 68 67 65 73 70 65 64 75 72 66 65 75 71
DEWPT 64 64 66 65 64 64 65 64 63 62 62 63 62 62 64 64
RH 90 97 74 90 90 97 76 81 93 93 64 73 87 90 69 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC B1 B2 B1 SC B1 B1 SC SC SC SC SC SC B1 B1
POP 12HR 30 70 30 40 10 20 10 50
RAIN SHWRS SC SC NM SC IS IS SC IS IS IS SC
TSTMS SC SC SC SC IS SC IS IS IS SC
$$
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