Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Sep 4 2026
VAZ018-042000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Fri Sep 4 2026
Date Fri 09/04/26 Sat 09/05/26 Sun 09/06/26
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 93 71 89 66 78
TEMP 88 91 90 77 75 73 71 72 83 89 85 74 71 69 68 67 72 77 74 68
DEWPT 69 68 66 68 65 66 66 67 67 68 68 68 68 67 66 66 70 69 68 65
MAX/MIN RH 42 85 49 98 78
RH 54 47 45 74 71 79 84 84 59 50 57 82 90 93 93 97 93 76 82 90
WIND DIR NW NW NW NW W W W NW NW NW NW NW NW NW N NE E E E E
WIND SPD 4 5 5 3 2 3 3 4 5 6 6 3 2 1 1 2 3 3 3 2
WIND GUST 14 16 14 18 18 19 13
CLOUDS CL FW SC FW FW FW FW SC FW B1 B2 B2 B2 B1 B1 B2 B2 B2 B2 B1
CLOUDS(%) 4 21 27 23 20 8 15 28 15 53 71 71 71 59 59 82 82 80 80 51
VSBY 10 10 10 10 10 7 4 5 9 10 10 10 10 8 10 6 10 10 10 10
POP 12HR 5 5 40 60 70
RAIN SHWRS SC NM NM SC SC NM NM NM NM SC
TSTMS IS SC IS IS IS
MIX HGT 5 6 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR NW NW NW NW W W W W NW W W W W NW E E E E E E
T WIND SPD 17 16 13 5 3 3 2 5 16 16 17 9 8 2 1 8 11 13 19 16
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 100113 93 3 2 2 1 6 63 92 94 4 4 1 1 8 31 39 56 7
MAX LVORI 1 1 1 3 4 5 6 5 1 1 1 5 6 7 9 8 4 3 4 5
STABILITY A A A G G G G A A B B F F F F B B B B F
CEILING None None None None None 9900 7800 18100 700 700
STA PRES 27.82 27.77 27.76 27.75 27.74 27.66 27.64 27.65 27.73 27.77
Date Mon 09/07/26Tue 09/08/26Wed 09/09/26Thu 09/10/26
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 62 76 60 82 63 87 68 89
TEMP 65 62 74 69 63 61 80 72 65 64 85 76 70 70 87 77
DEWPT 61 60 65 61 57 58 65 62 59 60 67 65 63 63 68 65
RH 87 93 74 76 81 90 60 71 81 87 55 69 78 78 53 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 SC FW SC SC SC SC SC SC FW FW FW FW SC
POP 12HR 30 5 0 5 0 5 5 20
RAIN SHWRS SC IS
TSTMS 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