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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Mon Mar 16 2026
VAZ012-170800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
802 PM EDT Mon Mar 16 2026
Date 03/16/26 Tue 03/17/26 Wed 03/18/26 Thu
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 17 31 14 43 28
TEMP 24 20 19 17 27 30 30 23 18 16 15 18 31 41 42 37 32 31 30 31
DEWPT 9 11 10 10 11 9 6 6 5 6 6 7 10 14 18 23 23 24 25 25
MIN/MAX RH 91 36 67 34 82
RH 52 67 67 73 50 41 35 47 56 64 67 61 41 33 37 56 69 75 81 78
WIND DIR W W W W W W W NW W W W W SW SW SW S S SW SW W
WIND SPD 10 10 8 6 6 6 6 4 2 1 1 1 2 3 3 2 2 2 2 2
WIND GUST 23 21 19 17 18 17
CLOUDS B1 B1 B1 B1 B1 B1 SC FW SC B1 SC B1 SC SC SC B1 B1 B1 B2 B1
CLOUDS(%) 62 68 64 51 52 65 34 10 43 57 47 56 39 30 43 54 58 65 70 67
VSBY 6 6 6 10 10 5 6 10 10 10 10 10 10
POP 12HR 40 20 0 5 5
RAIN SHWRS
SNOWSHWRS SC IS IS IS IS IS
MIX HGT 3 2 2 2 4 6 6 1 1 <1 <1 1 2 3 3 1
T WIND DIR W NW NW W W W W NW NW W W S SW SW SW SW
T WIND SPD 39 37 31 20 24 24 24 9 4 3 5 5 12 13 18 10
DISPERSION FR FR PR VP VP VP VP VP VP VP VP
ADI 53 51 42 44 68 78160 4 2 2 3 7 34 59 74 5
MAX LVORI 1 1 1 3 1 1 1 2 3 3 3 3 1 1 1 3
STABILITY D D D D D D B F F F F C B B B F
CEILING 1200 1300 None None None None None None 3100
STA PRES 26.96 27.09 27.19 27.23 27.33 27.35 27.37 27.31
Date 03/19Fri 03/20/26Sat 03/21/26Sun 03/22/26Mon 03/23/26
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 55 35 64 44 67 46 69 38 60
TEMP 53 48 39 37 62 55 47 45 66 59 51 46 66 57 44 38 56 48
DEWPT 35 36 35 35 40 40 42 42 44 43 44 41 41 39 35 30 29 27
RH 50 63 85 92 44 57 83 89 45 55 77 83 40 51 70 73 35 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC SC SC B2 B1 SC SC SC SC SC SC SC SC B1
POP 12HR 5 10 10 20 20 10 10 20 10
RAIN SHWRS IS 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