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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Jul 12 2026
NCZ001-130800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 PM EDT Sun Jul 12 2026
Date 07/12/26 Mon 07/13/26 Tue 07/14/26 Wed
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 60 63 58 69 60
TEMP 63 64 64 61 61 62 62 60 61 62 62 59 60 66 68 64 61 60 61 61
DEWPT 63 63 62 61 61 62 62 60 61 61 60 59 60 61 61 60 59 58 58 59
MIN/MAX RH 100 94 100 77 93
RH 100 97 93100100100100100100 97 93100100 84 78 87 93 93 90 93
WIND DIR SE E SE E E E E E E E E E E E E SE SE S NW NW
WIND SPD 8 9 8 10 8 8 8 13 17 18 16 14 9 6 6 6 4 3 3 4
CLOUDS B2 OV OV B2 B2 OV B2 OV B2 B2 B2 B2 B1 B1 SC SC FW FW FW FW
CLOUDS(%) 81 92 89 85 87 90 83 91 73 72 85 78 61 59 37 33 25 23 25 18
VSBY 6 3 1 2 4 5 5 7 6 1 2 7 10 7 7 7 7 7 7 7
POP 12HR 80 90 60 20 5
RAIN SHWRS SC NM O O O NM NM NM SC SC IS IS
TSTMS IS IS IS
MIX HGT <1 <1 <1 <1 1 2 1 1 <1 <1 <1 <1 2 2 3 1
T WIND DIR SE SE E E E E E E E E E E E E E SE
T WIND SPD 8 8 5 8 16 21 16 12 6 6 10 8 9 10 9 3
DISPERSION PR PR PR FR GD GD GD PR VP VP VP
ADI 7 7 5 6 29 45 28 11 6 6 9 10 22 26 31 2
MAX LVORI 8 6 6 8 4 4 4 7 8 6 6 8 5 4 3 6
STABILITY D D D C C C C D D D D C B B B F
CEILING 600 600 600 600 600 8400 21300 None None
STA PRES 26.81 26.80 26.85 26.86 26.88 26.87 26.90 26.87
Date 07/15Thu 07/16/26Fri 07/17/26Sat 07/18/26Sun 07/19/26
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 77 62 78 64 77 63 77 62 76
TEMP 74 71 65 63 76 71 67 64 75 71 65 64 74 70 65 64 73 69
DEWPT 61 64 62 61 63 65 63 63 62 64 62 61 62 63 61 61 63 62
RH 64 79 90 93 64 81 87 97 64 79 90 90 66 78 87 90 71 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW FW FW SC SC FW SC B1 SC FW SC SC SC FW SC B1
POP 12HR 20 0 20 10 30 10 20 10 40
RAIN SHWRS IS IS SC IS IS SC
TSTMS IS IS SC 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
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