Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Wed Sep 9 2026
VAZ018-092000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 AM EDT Wed Sep 9 2026
Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26
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 87 67 88 67 83
TEMP 63 64 78 84 84 74 71 69 68 69 81 87 83 74 72 70 68 67 76 82 78 71
DEWPT 58 59 65 66 66 64 62 61 60 61 66 68 68 66 66 66 66 66 70 70 70 68
MAX/MIN RH 52 77 54 96 67
RH 84 84 64 55 55 71 73 76 76 76 60 53 61 76 81 87 93 97 82 67 76 90
WIND DIR W W W SW SW W SW W W W W W W W W W W NW N SE SE E
WIND SPD 2 2 2 3 4 3 5 5 5 6 8 8 6 4 4 3 2 2 1 2 2 2
WIND GUST 17 18 19 20 24 21 20 17 14
CLOUDS SC FW FW B1 SC FW FW CL CL FW FW SC FW B1 B1 B1 SC B1 B1 B2 B2 B2
CLOUDS(%) 27 14 12 51 33 16 13 5 5 9 22 38 25 69 69 60 50 58 58 76 76 70
VSBY 8 7 10 10 10 10 10 10 10 7 9 10 9 8 7 10 10 7 10 7 10 10
POP 12HR 5 0 20 50 60
RAIN SHWRS IS SC SC NM NM SC
TSTMS IS IS SC SC IS
MIX HGT <1 <1 4 6 5 <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 4 2 <1
T WIND DIR W W W W SW SW SW SW SW W W W W W NW NW W W W SE SE E
T WIND SPD 3 3 2 6 10 8 6 6 6 6 26 24 17 6 2 2 1 1 2 4 6 5
DISPERSION VP VP PR PR PR VP VP VP VP VP
ADI 2 4 11 30 57 4 3 3 3 8120146 95 5 2 1 1 1 7 17 18 3
MAX LVORI 6 5 2 1 1 3 3 4 4 4 1 1 1 4 5 7 8 9 4 3 3 6
STABILITY G B B C B G F F F B B B B E E F F C C C C F
CEILING None None None None None None 3800 None 1500 1100
STA PRES 28.03 27.93 27.89 27.84 27.84 27.79 27.78 27.78 27.81 27.80
Date Sat 09/12/26Sun 09/13/26Mon 09/14/26Tue 09/15/26
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 66 81 67 86 66 86 66 87
TEMP 68 66 79 72 68 68 83 74 68 67 84 75 68 68 84 75
DEWPT 66 66 72 69 67 67 71 68 65 65 69 67 65 65 70 67
RH 93100 79 90 97 97 67 82 90 93 61 76 90 90 63 76
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC SC FW SC B1
POP 12HR 50 80 30 30 5 20 5 30
RAIN SHWRS SC SC O SC SC IS SC
TSTMS IS IS SC IS 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