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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Fri Mar 13 2026
NCZ003-132000-
RAWS 310302
36.35N 80.48W Elev. 1076 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 57 39 65 43 65
TEMP 53 56 54 50 46 42 40 53 63 65 60 53 49 45 44 52 61 65 62
DEWPT 25 28 30 33 34 34 33 34 35 37 39 39 38 39 39 46 50 52 54
MAX/MIN RH 33 76 34 82 62
RH 33 34 40 52 63 73 76 48 35 35 46 59 66 79 82 80 67 63 75
WIND DIR SW SW SW SW W W NW NW W S SE SE E E E E SE SE SE
WIND SPD 14 17 14 11 8 5 4 4 2 3 4 4 4 4 5 5 8 9 10
WIND GUST 28 29
CLOUDS FW SC FW CL FW FW FW FW SC SC FW FW FW SC B1 B2 B2 OV OV
CLOUDS(%) 13 37 9 5 19 21 24 15 28 27 10 12 17 39 69 84 85 90 91
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 40
RAIN SHWRS IS IS SC SC SC
MIX HGT 4 5 1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 1 4 6 2
T WIND DIR SW SW SW SW SW W NW NW SW S SE SE SE S SE E SE SE SE
T WIND SPD 25 29 12 10 5 3 2 2 4 8 3 4 4 3 2 3 6 10 10
DISPERSION GD FR PR PR VP VP VP VP FR
ADI 69 90 11 7 3 2 2 5 20 42 2 2 2 2 3 6 18 33 12
MAX LVORI 1 1 2 2 3 3 4 2 2 1 2 3 3 4 5 4 3 1 4
STABILITY D D D E F F B B B B F F F F D D D D D
CEILING None None None None None None None 600 500
STA PRES 28.93 28.94 29.00 29.11 29.08 29.11 29.10 29.10 28.98
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 58 63 28 41 24 47 32 58
TEMP 60 60 62 51 36 29 38 36 28 25 43 41 36 34 54 52
DEWPT 57 59 55 35 19 11 8 7 10 11 10 20 23 25 30 36
RH 90 96 78 54 50 46 28 29 46 55 25 42 59 69 40 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV B2 B1 B1 SC SC FW SC B1 SC SC SC SC SC B1
POP 12HR 80 90 30 0 0 0 5 5
RAIN SHWRS SC O O O SC
TSTMS IS IS 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