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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Jul 16 2026
NCZ003-162000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Thu Jul 16 2026
Date Thu 07/16/26 Fri 07/17/26 Sat 07/18/26
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 95 72 92 70 89
TEMP 85 91 95 87 78 75 73 75 88 91 92 86 78 73 71 74 86 89 87 82
DEWPT 68 67 66 69 66 66 66 69 72 69 69 70 70 69 68 70 72 72 72 72
MAX/MIN RH 40 87 47 92 57
RH 57 45 39 55 67 74 79 82 59 49 47 59 76 87 90 87 63 57 61 72
WIND DIR N NW NW N NW NW NW N NE E SE N N N N N SW SW SW W
WIND SPD 5 2 1 0 2 3 4 3 2 3 2 0 0 0 0 0 3 5 4 2
CLOUDS CL FW FW FW FW FW FW FW SC SC SC B1 B1 SC SC B1 B1 B2 B2 B1
CLOUDS(%) 3 12 20 20 9 8 8 23 37 34 47 51 51 42 30 51 51 78 78 57
VSBY 10 10 10 10 10 10 10 10
POP 12HR 5 0 20 30 60
RAIN SHWRS IS IS SC SC SC SC NM NM SC
TSTMS IS IS SC IS IS SC SC SC
Obvis H H H H H
MIX HGT 3 6 6 <1 <1 <1 <1 <1 4 6 5 <1 <1 <1 <1 <1 4 6 3 <1
T WIND DIR N N NW S NW N N N E S S SW N W NW NW W W SW SW
T WIND SPD 16 6 2 1 4 6 6 5 6 5 6 1 0 1 2 2 10 9 11 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 54 50 16 1 2 3 3 6 34 39 44 1 0 1 1 2 46 40 38 5
MAX LVORI 1 1 2 3 3 3 4 4 1 1 1 3 4 6 7 6 1 1 1 3
STABILITY A A A G G G F A A A A F F F G A B C C F
CEILING None None None None None None None None None 5200
STA PRES 28.18 28.12 28.14 28.17 28.19 28.13 28.15 28.11 28.11 28.03
Date Sun 07/19/26Mon 07/20/26Tue 07/21/26Wed 07/22/26
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 68 89 65 87 66 89 67 88
TEMP 71 72 85 82 69 69 85 81 69 70 86 82 71 71 86 82
DEWPT 70 70 72 71 67 67 68 69 66 67 70 71 67 68 68 69
RH 97 93 65 69 93 93 57 67 90 90 59 69 87 90 55 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 SC FW SC B1 SC SC SC B1 SC SC SC B1
POP 12HR 30 60 20 30 10 40 20 30
RAIN SHWRS SC IS NM IS IS SC SC IS SC
TSTMS SC IS SC SC SC IS SC
$$
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