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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Fri Jul 10 2026
VAZ046-102000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1001 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 90 69 89 66 83
TEMP 86 87 85 77 73 72 71 73 83 88 84 78 72 69 67 70 77 81 83 78
DEWPT 71 70 69 71 71 70 69 71 73 73 73 73 72 69 67 69 71 70 69 68
MAX/MIN RH 55 94 62 100 63
RH 61 57 59 82 93 93 93 93 72 61 70 85100100100 97 82 69 63 71
WIND DIR W W W SW SW SW W W NW NW NW N N N NE NE NE NE E E
WIND SPD 6 8 9 5 5 4 4 3 4 4 5 2 3 3 5 6 8 8 8 5
CLOUDS SC B2 B2 SC B1 SC B1 SC SC B1 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1
CLOUDS(%) 34 84 87 46 61 39 57 39 40 61 74 68 68 67 76 77 76 77 75 68
VSBY 10 10 10 10 10 9 7 10 10 10 10 10 8 1 4 10 10 10 10 10
POP 12HR 40 20 50 50 50
RAIN SHWRS SC SC IS IS IS SC SC SC SC SC SC SC SC SC SC
TSTMS SC IS IS SC SC IS IS SC SC
MIX HGT 4 6 2 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 2 3 3 1
T WIND DIR W W W W SW W W N NW NW E NE E NW NW NE NE NE E E
T WIND SPD 11 14 18 13 3 5 4 6 1 2 4 19 6 5 2 13 17 13 11 16
DISPERSION PR PR VP VP VP VP VP PR PR
ADI 55 65 46 9 2 3 3 7 5 14 17 9 3 3 2 14 45 42 39 11
MAX LVORI 1 1 1 4 6 6 6 6 3 2 3 4 9 9 10 5 3 1 1 3
STABILITY B C C E E F E A A A C F F F E C C C C E
CEILING 5200 None None None 3400 400 1800 3800 4100
STA PRES 29.22 29.24 29.25 29.26 29.24 29.33 29.36 29.44 29.43
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 63 84 62 89 66 96 71 97
TEMP 66 67 82 79 65 67 87 82 69 71 94 89 74 75 94 89
DEWPT 64 65 63 64 61 63 63 65 62 65 66 67 66 68 67 67
RH 93 93 53 60 87 87 45 56 78 81 40 48 76 79 41 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW
POP 12HR 10 10 5 5 0 0 5 10
$$
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