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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
405 AM EDT Thu Jul 30 2026
VAZ018-302000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
405 AM EDT Thu Jul 30 2026
Date Thu 07/30/26 Fri 07/31/26 Sat 08/01/26
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 82 58 86 64 86
TEMP 60 62 74 80 80 71 65 61 59 64 78 84 85 75 69 66 65 68 79 84 82 74
DEWPT 56 57 57 57 57 56 54 55 55 57 59 57 57 59 57 58 58 60 64 64 65 66
MAX/MIN RH 45 85 38 79 52
RH 87 84 55 45 45 59 68 81 87 78 52 40 39 58 66 75 78 76 60 51 56 76
WIND DIR NW NW NW NW N NW NW NW NW NW SE S S SE N N N SE S S S S
WIND SPD 6 8 10 9 8 5 3 2 2 2 1 2 2 1 0 0 0 1 3 6 6 6
WIND GUST 18 20 13 17 19 21
CLOUDS FW FW CL CL CL CL FW FW CL FW FW SC CL FW SC B1 B1 B1 B1 B2 B2 B2
CLOUDS(%) 7 9 3 5 2 3 7 7 4 10 6 26 4 22 39 56 61 64 65 82 74 80
VSBY 10 8 10 10 10 10 10 10 9 6 10 7 7 7 7 7 7 7 10 10 10 10
POP 12HR 0 0 0 0 10
RAIN SHWRS SC SC SC SC NM
TSTMS SC SC IS
MIX HGT <1 <1 3 5 5 1 <1 <1 <1 <1 4 6 7 <1 <1 <1 <1 <1 4 8 5 2
T WIND DIR NW NW NW N NW NW NW W NW NW N
T WIND SPD 6 9 14 12 12 16 5 3 4 2 1
DISPERSION PR PR VP VP VP VP VP VP VP PR
ADI 3 12 55 72 75 7 3 2 2 2 6 0 0 0 0 0 0 0 0 0 0 0
MAX LVORI 6 4 1 1 1 3 3 4 5 4 2 2 2 3 4 4 4 4 3 2 3 4
STABILITY F B B B B F G G G A A A A A A A A A A A A A
CEILING None None None None None None None 4700 4700 900
STA PRES 27.75 27.74 27.80 27.81 27.81 0.0 0.0 0.0 0.0 0.0
Date Sun 08/02/26Mon 08/03/26Tue 08/04/26Wed 08/05/26
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 67 78 67 82 67 82 68 84
TEMP 70 68 75 72 69 69 80 74 69 68 80 74 70 70 82 75
DEWPT 66 67 72 70 67 68 71 71 67 67 71 71 67 68 72 71
RH 87 97 90 93 93 97 74 90 93 97 74 90 90 93 72 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 B1 B2
POP 12HR 70 80 40 50 30 60 30 60
RAIN SHWRS NM NM SC O SC SC SC IS NM SC SC NM
TSTMS 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