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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Thu Jul 16 2026
VAZ024-170800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 PM EDT Thu Jul 16 2026
Date 07/16/26 Fri 07/17/26 Sat 07/18/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 72 95 72 95 71
TEMP 95 88 78 75 72 75 88 93 95 86 77 74 72 75 89 94 91 83 76 73 71 74
DEWPT 68 72 70 69 68 69 69 69 69 71 70 70 69 71 73 72 73 73 72 71 70 72
MIN/MAX RH 88 43 91 50 98
RH 42 59 76 82 87 82 54 46 43 61 79 87 90 87 59 49 56 72 87 93 97 93
WIND DIR SW W W NW N N E SE SE S N N N N SW SW SW W W W W W
WIND SPD 2 1 1 1 1 1 1 2 3 1 0 0 0 0 3 6 5 3 3 2 3 2
WIND GUST 17 16 13 13 12
CLOUDS FW SC FW CL FW SC FW FW FW FW B1 SC FW SC SC B2 B2 B1 B1 B1 B1 B1
CLOUDS(%) 20 36 20 3 12 26 19 18 20 25 54 49 19 43 41 82 82 58 54 62 61 59
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 10 10 70 30
RAIN SHWRS NM NM SC SC IS
TSTMS SC SC SC IS
Obvis H K K K K
MIX HGT 5 <1 <1 <1 <1 <1 3 6 5 <1 <1 <1 <1 <1 4 6 3 <1
T WIND DIR W W NW N N NE E S SW SE NE S S SW SW W SW SW
T WIND SPD 3 4 3 4 4 5 6 1 4 1 2 6 1 4 9 16 14 10
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 20 2 2 2 2 6 26 8 29 1 1 3 1 4 45 73 50 5
MAX LVORI 2 3 3 5 6 4 2 2 2 3 4 5 7 5 1 1 1 3
STABILITY A G G G G A A A A G F F G A A C C F
CEILING None None None None None 17000 None None 3700 4000
STA PRES 28.47 28.50 28.55 28.61 28.53 28.52 28.48 28.43 28.33
Date 07/19Mon 07/20/26Tue 07/21/26Wed 07/22/26Thu 07/23/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 92 66 90 67 93 68 90 62 86
TEMP 91 83 70 68 87 82 70 71 91 84 72 71 88 81 67 65 84 79
DEWPT 70 69 68 67 68 69 69 70 70 71 69 69 68 64 64 63 62 63
RH 50 63 93 97 53 65 97 97 50 65 90 93 52 56 90 93 48 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC SC SC SC B1 B1 B1 SC SC B1 SC SC FW SC
POP 12HR 40 20 20 20 30 40 30 20 20
RAIN SHWRS IS SC IS IS IS IS SC SC IS IS SC IS IS IS IS
TSTMS IS SC IS IS IS 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