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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 AM EDT Fri Jul 24 2026
VAZ012-242000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
931 AM EDT Fri Jul 24 2026
Date Fri 07/24/26 Sat 07/25/26 Sun 07/26/26
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 69 59 76 57 82
TEMP 64 69 69 66 63 62 61 62 69 73 76 71 63 60 58 61 72 77 81 74
DEWPT 62 64 64 64 63 62 61 62 64 64 63 62 61 59 58 60 65 64 64 64
MAX/MIN RH 83 100 63 100 58
RH 93 84 84 93100100100100 84 73 64 73 93 96100 97 79 64 56 71
WIND DIR SE SE SE SE SE SE S W NW W W W W W W W NW NW NW NW
WIND SPD 4 4 4 3 3 2 1 1 3 3 4 3 1 1 1 1 2 2 2 1
CLOUDS B2 B2 B2 OV OV B2 B2 B1 B2 B1 B1 SC SC SC SC SC SC SC SC SC
CLOUDS(%) 87 86 79 94 88 75 78 69 76 52 54 32 33 31 35 34 32 38 33 27
VSBY 7 7 7 6 7 7 7 10 10 10 7 10 10 10 10 10 10 10 10 10
POP 12HR 50 70 30 10 10
RAIN SHWRS IS SC IS NM IS IS IS IS
TSTMS IS IS IS
Obvis PF PF PF
MIX HGT 1 2 2 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR SE SE SE E SE SE SE SW NW NW NW NW W W W N NW NW NW NW
T WIND SPD 9 10 9 5 6 5 2 1 4 5 8 8 3 4 3 6 10 12 9 10
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 16 22 20 3 3 3 1 1 13 26 30 4 2 2 2 8 44 66 50 5
MAX LVORI 5 4 4 8 9 9 10 10 4 3 2 3 7 9 10 8 3 1 1 3
STABILITY C C C F F F F B B B C G G G G A A A A G
CEILING 200 200 100 100 None None None None None
STA PRES 27.35 27.35 27.32 27.32 27.28 27.27 27.24 27.23 27.18
Date Mon 07/27/26Tue 07/28/26Wed 07/29/26Thu 07/30/26
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 59 86 64 87 63 84 58 84
TEMP 62 63 80 76 66 66 81 77 67 65 79 74 62 62 79 75
DEWPT 61 63 66 66 63 65 68 68 65 65 65 64 60 61 61 62
RH 97100 62 71 90 97 65 74 93100 62 71 93 97 54 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 SC SC B1 B1 B1 SC B1 B1 FW FW SC SC
POP 12HR 10 30 20 40 40 30 10 10
RAIN SHWRS SC IS IS SC SC 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