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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
359 AM EDT Fri Mar 13 2026
VAZ020-132000-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
359 AM EDT Fri Mar 13 2026
Date Fri 03/13/26 Sat 03/14/26 Sun 03/15/26
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 58 37 60 40 58
TEMP 31 32 42 53 57 53 50 46 41 38 49 58 60 54 48 46 43 41 49 54 57 54
DEWPT 18 19 19 22 25 27 28 26 24 23 22 22 24 28 30 32 32 33 38 42 43 44
MAX/MIN RH 27 56 23 73 60
RH 58 58 39 29 29 36 42 45 50 54 34 25 25 36 49 58 65 73 66 64 59 69
WIND DIR SW SW S S SW SW W W W W W W SW SE E E E E SE SE SE SE
WIND SPD 2 3 6 9 9 6 6 6 5 3 4 3 3 2 2 2 2 2 3 4 4 3
WIND GUST 20 25 24 23 24 21 18 13 14 14 13
CLOUDS SC SC SC FW FW FW CL FW FW FW SC SC B1 B1 SC SC SC B1 B2 B2 B2 B2
CLOUDS(%) 35 44 29 12 12 7 3 6 8 18 37 50 55 59 48 43 45 58 82 78 86 87
VSBY 10 10 10 10 10 10 10 10 10 10 10 3 3 3 3 10 10
POP 12HR 0 0 0 0 20
RAIN SHWRS IS IS IS
MIX HGT <1 <1 3 4 6 6 5 3 2 <1 3 4 4 <1 <1 <1 <1 <1 1 2 2 1
T WIND DIR S S S S SW SW W W W W W W SW SE SE SE SE SE S SE SE SE
T WIND SPD 3 4 27 27 35 12 14 16 13 9 13 11 9 8 4 5 5 4 9 6 8 4
DISPERSION VP PR PR PR PR VP VP VP VP VP
ADI 2 5 92106154 6 7 7 6 10 48 57 44 4 2 3 3 4 17 15 16 2
MAX LVORI 3 3 1 1 1 2 2 2 2 2 1 1 1 2 2 3 3 3 3 2 2 3
STABILITY G B B C C F F F F B B B B F F F F C C D D F
CEILING None None None None None None None None 1400 900
STA PRES 27.80 27.63 27.69 27.78 27.93 27.94 27.98 27.96 27.97 27.88
Date Mon 03/16/26Tue 03/17/26Wed 03/18/26Thu 03/19/26
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 51 62 25 34 22 44 32 55
TEMP 56 58 60 46 32 26 33 28 25 24 42 38 34 33 53 46
DEWPT 51 54 52 30 16 10 4 2 4 7 7 14 17 20 29 32
RH 83 86 75 53 51 50 29 32 40 47 23 37 49 58 39 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV B2 B2 B2 B1 SC SC SC SC SC SC B1 B1 B1 B1
POP 12HR 80 90 40 5 0 0 10 5
RAIN SHWRS SC O O O SC
TSTMS 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