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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Jul 14 2026
VAZ046-142000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Tue Jul 14 2026
Date Tue 07/14/26 Wed 07/15/26 Thu 07/16/26
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 88 65 96 70 98
TEMP 80 87 88 81 71 68 66 70 88 95 96 87 77 73 70 75 91 98 98 91
DEWPT 67 64 62 65 63 62 62 65 67 66 64 65 65 65 65 68 70 68 66 68
MAX/MIN RH 42 89 35 87 35
RH 65 46 42 58 76 81 87 84 50 39 35 48 67 76 84 79 50 38 35 47
WIND DIR E E E SE S SW SW W W S SW S SW SW W NW E SE S S
WIND SPD 2 3 3 2 3 4 5 4 2 3 4 4 5 4 3 2 3 3 4 3
CLOUDS CL CL FW CL CL CL CL CL CL CL FW CL CL FW FW FW FW FW FW FW
CLOUDS(%) 3 5 6 1 1 2 1 2 3 2 7 0 5 10 9 13 17 18 20 16
VSBY 10 10 10 10 10 7 7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 3 5 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 7 7 <1
T WIND DIR NE E NE S SW SW SW W E SW SW SW SW SW W N E S S SW
T WIND SPD 4 4 2 2 3 3 3 2 3 3 4 6 3 3 2 2 4 3 4 8
DISPERSION VP VP VP PR VP PR VP VP VP
ADI 18 28 14 1 2 2 2 2 11 21 30 3 2 2 1 2 20 28 40 4
MAX LVORI 2 2 2 3 4 5 6 5 2 2 1 2 3 4 5 5 2 2 1 2
STABILITY A A A G G F F A A A A F F F G A A A A G
CEILING None None None None None None None None None None
STA PRES 29.47 29.40 29.37 29.34 29.33 29.25 29.26 29.26 29.27 29.21
Date Fri 07/17/26Sat 07/18/26Sun 07/19/26Mon 07/20/26
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 72 97 72 95 71 92 70 92
TEMP 76 77 95 90 75 75 92 86 74 74 90 84 73 73 90 84
DEWPT 67 68 67 68 68 70 71 72 71 72 73 72 69 69 69 68
RH 74 74 40 49 79 84 51 63 90 93 58 67 87 87 50 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC SC SC SC B1 B1 SC SC B1 SC SC SC SC
POP 12HR 0 5 20 50 30 50 30 20
RAIN SHWRS 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