Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Thu Jul 16 2026
VAZ018-170800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 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 71 93 72 90 70
TEMP 92 82 76 73 71 74 86 90 90 81 76 74 72 74 85 89 85 77 74 72 71 72
DEWPT 67 68 66 66 66 68 70 70 70 70 68 68 67 69 72 72 72 71 69 69 69 69
MIN/MAX RH 83 48 86 58 93
RH 44 63 71 79 84 82 59 52 52 69 76 82 84 84 65 57 65 82 84 90 93 90
WIND DIR NW NW NW NW N E E SE SE E N N N W W W W W W W W W
WIND SPD 2 2 2 2 2 1 1 2 3 1 0 0 0 1 4 6 6 5 5 5 5 6
WIND GUST 12 14 18 19 21 23 23 23 23
CLOUDS FW SC FW CL FW SC FW FW SC SC B1 SC SC SC B1 B2 B2 B1 B1 B1 B1 B1
CLOUDS(%) 18 47 7 3 14 28 15 20 31 41 63 46 32 43 51 86 86 63 63 59 68 68
VSBY 10 10 10 8 7 9 10 10 10 10 10 10 10
POP 12HR 0 20 20 80 40
RAIN SHWRS IS IS IS O O SC SC IS IS
TSTMS IS IS SC SC SC IS
Obvis H K K K K
MIX HGT 6 <1 <1 <1 <1 <1 3 6 5 <1 <1 <1 <1 <1 4 5 4 <1
T WIND DIR NW W NW NW NW N E S S SE N SE S SW W W W SW
T WIND SPD 3 5 5 4 3 3 6 4 4 8 0 3 2 4 11 16 16 18
DISPERSION VP VP VP VP VP VP VP VP PR PR PR PR
ADI 24 3 3 2 2 3 29 32 27 4 0 2 1 4 40 66 61 12
MAX LVORI 2 3 3 4 5 5 2 1 2 3 4 5 5 5 1 1 1 4
STABILITY A F G G G A A A A F F F G A C C C E
CEILING None None None None None None None 3100 3000
STA PRES 27.82 27.86 27.91 27.84 27.82 27.78 27.74 27.65
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 87 66 86 68 89 69 85 62 82
TEMP 86 77 69 68 84 77 70 70 87 79 72 70 83 74 66 64 80 74
DEWPT 71 67 65 64 67 67 66 67 70 69 67 67 67 63 62 60 62 61
RH 61 71 87 87 57 71 87 90 57 72 84 90 59 69 87 87 54 64
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 B1 B1 SC SC SC SC
POP 12HR 30 20 20 10 40 40 30 10 20
RAIN SHWRS SC IS IS IS SC SC IS SC SC IS
TSTMS SC IS IS SC SC 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