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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Fri Mar 13 2026
VAZ024-132000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
132 PM 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 60 40 64 41 61
TEMP 55 59 56 52 49 44 40 52 61 64 58 50 46 43 42 50 58 61 58
DEWPT 26 29 31 34 32 29 28 28 28 30 33 33 34 34 35 40 45 48 49
MAX/MIN RH 31 60 27 75 61
RH 32 32 38 50 52 55 62 39 28 28 39 52 63 70 76 68 62 62 72
WIND DIR S SW SW SW W SW SW W W W E E E E E SE SE SE E
WIND SPD 13 13 8 6 5 5 4 5 5 2 1 2 2 2 2 3 6 5 3
WIND GUST 31 31 26 23 20 18 14 17 16 16
CLOUDS FW CL CL CL FW FW FW SC B1 B1 SC SC SC SC B1 B2 B2 OV B2
CLOUDS(%) 20 5 4 2 8 7 6 43 59 58 33 33 28 49 66 79 84 89 85
VSBY 10 10 10 10 10 10 10 10 10 10 6 8 10 10
POP 12HR 0 0 0 0 30
RAIN SHWRS SC SC SC
MIX HGT 5 5 2 4 2 1 <1 3 4 5 <1 <1 <1 <1 <1 2 3 2 1
T WIND DIR S SW SW SW W W W NW W SW SE SE SE SE SE S SE SE E
T WIND SPD 28 34 12 10 12 11 10 10 9 6 4 4 4 5 5 9 8 8 4
DISPERSION PR PR PR PR VP VP VP VP VP
ADI 86104 6 5 6 5 11 38 47 41 2 2 2 3 4 21 20 16 2
MAX LVORI 1 1 2 2 2 3 2 1 1 1 2 2 3 3 4 3 2 2 3
STABILITY D D F F F F B B B B F G G F C C D D F
CEILING None None None None None None None 2600 1200
STA PRES 28.36 28.39 28.49 28.64 28.63 28.67 28.65 28.67 28.58
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 54 67 28 42 23 49 31 59
TEMP 57 59 66 52 36 29 40 34 28 24 44 41 34 33 55 51
DEWPT 53 57 57 37 20 12 9 5 8 12 11 19 21 22 31 36
RH 86 93 73 56 52 48 27 29 42 60 26 41 58 63 40 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV OV B1 B1 SC SC SC FW SC SC SC B1 B1 B1 B1
POP 12HR 80 90 40 5 0 0 5 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