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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EDT Thu Jul 16 2026
VAZ018-170800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1231 AM EDT Thu Jul 16 2026
Date 07/15/26 Thu 07/16/26 Fri 07/17/26 Sat
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 69 91 72 93 71
TEMP 72 70 73 87 92 92 83 77 74 72 75 86 91 90 81 76 73 71 74
DEWPT 63 63 64 67 66 64 67 67 66 65 67 67 67 68 68 68 68 68 70
MIN/MAX RH 87 40 83 44 89
RH 73 78 73 52 43 40 59 71 76 79 76 53 45 49 65 76 84 90 87
WIND DIR NW NW NW N SW NW NW NW NW NW N E SE SE E N N N W
WIND SPD 2 3 3 2 1 2 2 2 2 2 1 2 2 3 1 1 0 0 1
CLOUDS SC CL FW FW SC FW SC FW CL SC SC SC B1 SC B1 B1 B1 B1 B1
CLOUDS(%) 30 3 20 18 30 25 32 12 3 26 45 30 55 50 59 59 60 56 54
VSBY 10 5 10 10 10 10 10 10 9 8 10
POP 12HR 0 0 0 30 40
RAIN SHWRS SC SC SC SC
TSTMS SC SC SC
Obvis H H H
MIX HGT <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 3 6 6 <1
T WIND DIR NW NW NW N W W W NW NW NW NW E SE SE E
T WIND SPD 5 4 3 1 1 3 4 5 4 3 2 5 2 4 5
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 2 3 5 8 25 2 3 2 2 2 26 16 32 3
MAX LVORI 4 5 4 3 2 2 3 3 3 5 4 2 2 1 3
STABILITY G G A A A A F G G G A A A A F
CEILING None None None None None None None 4100
STA PRES 27.83 27.85 27.79 27.82 27.85 27.88 27.82
Date 07/18Sun 07/19/26Mon 07/20/26Tue 07/21/26Wed 07/22/26
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 89 70 87 65 87 67 89 67 86
TEMP 89 77 72 72 86 76 68 68 84 78 69 70 88 77 70 70 85 74
DEWPT 72 71 69 69 70 67 64 64 65 65 63 65 68 68 66 66 67 65
RH 57 82 90 90 59 74 87 87 53 64 81 84 52 74 87 87 55 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC B1 B1 B1 SC SC B1
POP 12HR 60 30 30 20 20 10 40 30 30
RAIN SHWRS SC NM SC IS IS SC IS IS IS SC SC IS SC
TSTMS IS SC SC IS SC IS IS SC IS 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
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