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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Jul 29 2026
NCZ003-300800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Wed Jul 29 2026
Date 07/29/26 Thu 07/30/26 Fri 07/31/26 Sat
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 82 60 85 65
TEMP 67 64 62 65 74 79 81 75 68 64 62 65 77 81 83 77 70 68 66 69
DEWPT 58 59 58 59 59 59 60 61 58 56 55 59 62 63 64 67 64 61 60 64
MIN/MAX RH 86 48 82 51 82
RH 73 84 87 81 59 50 49 62 70 75 78 81 60 54 53 71 81 78 81 84
WIND DIR NW NW NW NW N N N NW NW NW NW NW E S S N N N N N
WIND SPD 3 4 4 4 6 5 5 4 4 3 3 2 1 2 2 0 0 0 0 0
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL FW SC FW FW SC SC B1 B1
CLOUDS(%) 2 3 1 2 5 5 2 4 4 5 0 4 15 29 16 20 27 44 55 65
VSBY 10 10 10 10 10 10 10 10 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 0 0
RAIN SHWRS SC
MIX HGT <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 4 5 5 <1
T WIND DIR N NW N N N N N N N N NW N N SW SW S
T WIND SPD 8 8 9 13 16 11 12 12 5 5 4 4 0 2 1 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 4 4 17 59 72 87 6 3 3 2 4 0 14 7 2
MAX LVORI 3 5 5 3 1 1 1 3 3 3 4 4 3 2 2 3
STABILITY F F F A B A A F F G G A A A A G
CEILING None None None None None None None None None
STA PRES 28.02 28.05 28.07 28.07 28.13 28.15 28.15 28.10
Date 08/01Sun 08/02/26Mon 08/03/26Tue 08/04/26Wed 08/05/26
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 80 66 78 66 79 67 80 67 80
TEMP 79 75 70 68 75 74 70 69 77 75 69 69 78 75 69 69 78 75
DEWPT 70 71 68 68 74 73 70 69 74 74 69 69 74 74 69 69 74 74
RH 74 87 93100 97 97100100 90 97100100 88 97100100 88 97
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 B1 B2
POP 12HR 50 70 80 70 70 30 60 30 60
RAIN SHWRS SC SC SC NM NM O NM SC SC NM SC IS SC NM SC IS IS NM
TSTMS SC SC IS SC SC SC IS SC 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