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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Fri Jul 10 2026
VAZ024-102000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
631 AM EDT Fri Jul 10 2026
Date Fri 07/10/26 Sat 07/11/26 Sun 07/12/26
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 86 66 89 65 84
TEMP 72 83 84 81 77 73 71 69 70 83 88 85 78 71 68 66 68 77 82 84 78
DEWPT 69 70 69 70 71 69 68 68 70 72 71 72 71 70 68 66 68 70 69 68 67
MAX/MIN RH 61 100 57 100 60
RH 90 65 61 69 82 87 90 97100 70 57 65 79 97100100100 79 65 59 69
WIND DIR W W W W SW W W W W NW W N N N N N NE E E E E
WIND SPD 2 5 5 6 2 3 1 1 1 2 3 3 1 1 1 1 2 2 4 4 2
WIND GUST 12
CLOUDS B1 B2 B2 B2 B1 B1 B1 SC B1 B1 B2 B1 B1 B2 B1 B1 B2 B2 B2 B2 B2
CLOUDS(%) 52 76 76 75 51 56 53 45 51 58 73 64 65 75 69 67 72 71 76 75 70
VSBY 6 10 10 10 10 9 7 5 8 7 9 8 7 8 1 3 8 10 10 10 10
POP 12HR 60 30 60 40 60
RAIN SHWRS SC SC SC IS IS NM SC SC SC SC SC SC SC NM NM IS
TSTMS SC IS IS SC SC SC IS IS SC SC IS
Obvis PF
MIX HGT <1 4 3 2 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NW W W W W W W NW N W W W N NE NW NW NE E E E E
T WIND SPD 3 8 12 17 11 3 3 2 2 1 3 2 12 1 3 3 11 14 10 10 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 31 39 48 5 2 2 1 2 4 17 9 6 1 2 2 14 39 32 27 3
MAX LVORI 6 3 1 1 4 6 7 8 9 3 2 3 4 9 10 10 5 3 1 2 3
STABILITY A C C C F F F F B B B B F F F F B B C C F
CEILING 5300 4500 None None None 3800 1300 2600 1600 4300
STA PRES 28.48 28.45 28.47 28.48 28.5 28.47 28.55 28.59 28.66 28.65
Date Mon 07/13/26Tue 07/14/26Wed 07/15/26Thu 07/16/26
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 62 84 61 91 64 97 68 98
TEMP 66 66 82 78 65 65 88 82 67 69 94 88 72 72 95 88
DEWPT 65 65 63 64 61 63 63 66 63 65 66 68 66 68 66 67
RH 97 97 53 62 87 93 43 58 87 87 40 52 81 87 39 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 B1 B1 SC FW SC FW FW FW FW FW FW FW FW FW
POP 12HR 20 10 5 5 5 5 5 10
RAIN SHWRS IS
TSTMS IS
$$
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