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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 PM EDT Wed Jul 29 2026
VAZ018-300800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1031 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 57 82 58 86 64
TEMP 63 61 60 62 74 80 80 71 65 61 59 64 78 84 85 75 68 66 65 68
DEWPT 58 57 56 56 59 58 59 57 55 55 55 57 60 58 57 59 57 58 58 60
MIN/MAX RH 88 47 85 38 77
RH 84 87 87 81 59 47 49 61 70 81 87 78 54 41 39 58 68 75 78 76
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW W SW SW E N N N SE
WIND SPD 6 6 6 8 5 5 6 5 3 2 2 2 1 2 2 1 0 0 0 1
WIND GUST 16 18 20
CLOUDS SC FW FW FW CL CL CL CL CL CL CL FW FW SC FW SC SC SC B1 B1
CLOUDS(%) 50 6 7 9 3 5 1 4 2 3 2 10 16 29 15 28 33 44 53 65
VSBY 10 10 9 5 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 5 1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR NW NW NW NW N N N N NW NW W NW SW W NW SE
T WIND SPD 10 9 6 12 18 13 13 16 5 4 3 2 2 3 2 4
DISPERSION PR PR PR PR VP VP VP VP VP VP VP
ADI 5 4 3 17 67 87 84 7 3 2 2 2 13 25 20 2
MAX LVORI 4 5 6 3 1 1 1 3 3 4 5 4 2 2 2 3
STABILITY F F F A A A B F G G G A A A A G
CEILING None None None None None None None None
STA PRES 27.71 27.74 27.75 27.81 27.81 27.82 27.77
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 83 67 79 66 81 67 82 67 82
TEMP 82 76 70 68 77 72 69 68 79 73 69 68 80 73 68 68 80 74
DEWPT 64 65 66 67 71 70 68 68 72 70 67 67 71 70 67 68 71 71
RH 55 69 87 97 82 93 97100 79 90 93 97 74 90 97100 74 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 B1 B1
POP 12HR 40 70 80 60 60 30 50 30 50
RAIN SHWRS SC SC NM NM SC O NM SC SC NM SC IS SC SC IS SC
TSTMS SC IS SC SC 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