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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Wed Jul 8 2026
VAZ046-082000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
431 AM EDT Wed Jul 8 2026
Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26
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 69 90 69 92
TEMP 71 72 78 84 84 79 74 73 71 72 81 87 87 82 74 72 70 74 86 91 89 83
DEWPT 71 72 75 76 76 76 74 73 71 72 76 75 74 74 72 70 68 71 73 72 72 73
MAX/MIN RH 73 100 64 96 55
RH 100100 91 77 77 91100100100100 85 68 65 77 93 93 93 90 65 54 57 72
WIND DIR N NE NE E E E SE S S SW SW SW W NW W W W W W W SW W
WIND SPD 2 3 3 3 3 2 2 1 1 2 5 8 8 4 4 4 5 5 6 9 9 5
CLOUDS B1 B1 B2 B1 B2 B2 B1 B2 B2 B2 SC B1 B1 SC FW FW FW FW FW B1 B1 SC
CLOUDS(%) 63 62 77 62 70 76 65 79 81 81 47 65 55 34 16 11 14 10 12 55 55 44
VSBY 2 2 10 10 10 10 6 7 6 5 10 10 10 10 10 10 7 10 10 10 10 10
POP 12HR 40 30 70 5 30
RAIN SHWRS SC SC SC SC IS IS SC SC SC SC
TSTMS SC SC SC SC SC SC SC SC
Obvis PF PF
MIX HGT <1 <1 2 3 2 <1 <1 <1 <1 <1 3 6 4 <1 <1 <1 <1 <1 4 3 4 <1
T WIND DIR NE E E NE E E NE SE S S SW SW W SW W W SW SW W W SW W
T WIND SPD 4 9 11 8 9 8 1 5 6 5 5 11 11 1 2 2 2 3 16 18 32 18
DISPERSION VP VP VP VP VP VP VP VP PR PR
ADI 2 11 32 32 27 4 1 3 3 6 22 50 41 1 1 1 1 4 69 57119 12
MAX LVORI 9 7 4 3 3 6 10 9 9 8 4 1 1 4 7 8 8 6 1 1 1 3
STABILITY F B B B B F F F F B A C C F F F F A B C C E
CEILING 1100 2300 2700 600 None None None None None None
STA PRES 29.32 29.30 29.29 29.27 29.27 29.19 29.20 29.20 29.19 29.10
Date Sat 07/11/26Sun 07/12/26Mon 07/13/26Tue 07/14/26
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 69 88 66 85 65 85 65 90
TEMP 72 73 86 80 70 70 82 80 68 68 83 79 68 69 87 84
DEWPT 70 71 73 72 69 68 68 67 65 66 66 67 64 65 65 67
RH 93 93 65 77 97 93 63 65 90 93 57 67 87 87 48 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC FW FW FW
POP 12HR 20 70 40 40 30 20 10 10
RAIN SHWRS IS SC NM SC IS SC SC SC SC IS
TSTMS IS SC SC 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