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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Thu Jul 9 2026
NCZ001-092000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1031 AM EDT Thu Jul 9 2026
Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26
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 76 63 75 63 71
TEMP 67 72 72 67 66 66 65 64 67 72 71 67 67 66 66 64 64 68 68 65
DEWPT 63 64 63 63 63 63 63 62 63 65 64 63 63 63 63 62 64 65 65 63
MAX/MIN RH 72 95 74 97 88
RH 87 76 73 87 90 90 93 93 87 79 79 87 87 90 90 93100 90 90 93
WIND DIR W W W W W W W W W W W W W W W W W W NW W
WIND SPD 13 11 12 13 14 18 18 19 14 12 12 17 18 19 19 19 12 10 10 10
CLOUDS SC B1 B1 SC FW SC SC B1 B1 B2 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1
CLOUDS(%) 40 57 51 27 16 31 48 61 59 78 62 63 63 78 80 87 87 87 87 67
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 5 4 4 10 10 10 10
POP 12HR 40 20 60 70 80
RAIN SHWRS SC SC IS IS NM SC SC SC NM NM O O O O SC
TSTMS SC SC IS SC SC SC IS IS IS IS SC SC SC
MIX HGT 3 4 3 2 <1 <1 <1 1 3 3 3 1 <1 <1 <1 <1 2 2 2 1
T WIND DIR W W W W W W W W W W W W W W W SW W W W NW
T WIND SPD 13 13 17 11 8 14 12 17 16 13 14 11 12 16 10 10 16 18 10 12
DISPERSION FR GD GD GD GD GD GD GD FR
ADI 41 37 43 13 7 13 11 24 38 34 33 10 11 14 9 11 30 49 22 11
MAX LVORI 4 3 3 4 5 5 5 5 4 3 3 5 5 5 5 6 4 4 4 5
STABILITY C D D D D D D D D D D D D D D D D C C D
CEILING None None None 500 2600 500 500 600 6000
STA PRES 26.72 26.73 26.73 26.76 26.77 26.76 26.76 26.78 26.76
Date Sun 07/12/26Mon 07/13/26Tue 07/14/26Wed 07/15/26
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 61 72 59 69 58 74 60 78
TEMP 64 62 70 64 62 60 67 64 61 59 71 68 62 62 76 72
DEWPT 62 61 63 61 61 58 59 58 57 56 57 59 56 57 59 61
RH 93 97 78 90 97 93 75 81 87 90 61 73 81 84 56 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC FW FW FW FW
POP 12HR 50 80 40 50 10 10 5 10
RAIN SHWRS SC SC NM O SC SC SC SC
TSTMS SC IS IS SC SC 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