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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Jul 9 2026
VAZ046-092000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Thu Jul 9 2026
Date Thu 07/09/26 Fri 07/10/26 Sat 07/11/26
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 91 69 91 69 86
TEMP 82 88 87 82 74 72 70 73 86 90 88 82 75 72 70 73 81 84 82 77
DEWPT 75 74 74 73 71 70 68 70 73 72 73 73 71 70 69 71 73 73 73 72
MAX/MIN RH 57 94 56 97 71
RH 79 63 65 74 90 93 93 90 65 56 61 74 87 93 97 93 77 70 74 85
WIND DIR SW W W W W W W W W W W W W W W W W W N N
WIND SPD 5 8 9 5 4 4 5 5 6 9 9 5 4 4 4 4 5 5 5 3
CLOUDS FW SC B1 FW FW FW FW FW SC B1 B1 SC B1 SC B1 B1 B1 B2 B2 B1
CLOUDS(%) 8 48 66 12 6 9 6 15 31 65 55 50 51 46 59 58 69 78 78 67
VSBY 10 10 10 10 10 9 10 10 10 10 10 10 10 4 3 10 10 10 10 10
POP 12HR 50 10 40 30 70
RAIN SHWRS IS SC SC SC SC SC IS IS NM NM SC
TSTMS IS SC SC SC IS IS SC SC SC
MIX HGT 3 5 5 <1 <1 <1 <1 <1 4 6 2 <1 <1 <1 <1 1 2 4 3 <1
T WIND DIR W W W W SW W W W W W W W W W W W W W W N
T WIND SPD 8 8 11 11 4 6 4 4 11 16 18 14 6 6 3 11 8 6 8 13
DISPERSION PR VP VP PR PR VP VP VP VP
ADI 31 50 46 5 2 3 2 4 53 73 52 10 5 5 2 15 21 26 26 6
MAX LVORI 3 1 1 4 6 6 6 6 1 1 1 3 5 6 8 5 3 3 3 4
STABILITY A B C F F F F A B C C E E E E C C C B F
CEILING None None None None None 2900 None None 2800 6300
STA PRES 29.25 29.19 29.20 29.23 29.24 29.21 29.24 29.27 29.28 29.24
Date Sun 07/12/26Mon 07/13/26Tue 07/14/26Wed 07/15/26
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 65 83 63 82 62 88 65 94
TEMP 69 69 82 76 66 67 80 77 65 67 85 81 68 70 91 87
DEWPT 69 68 69 68 65 65 64 65 62 63 64 66 62 65 66 67
RH 100 97 65 76 97 93 58 67 90 87 50 60 81 84 44 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 SC B1 SC SC FW FW FW CL CL FW FW
POP 12HR 40 40 30 20 5 5 0 5
RAIN SHWRS SC SC IS SC SC IS
TSTMS SC SC 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