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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EDT Fri Mar 13 2026
NCZ001-132000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
701 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 49 36 57 42 54
TEMP 31 37 46 48 45 42 41 38 36 47 56 54 49 46 46 43 43 46 48 51 52
DEWPT 15 17 22 25 28 30 33 31 30 30 33 36 37 37 37 38 39 42 45 47 47
MAX/MIN RH 38 80 42 86 78
RH 51 44 38 40 51 62 73 76 79 51 42 50 63 71 71 82 86 86 89 86 83
WIND DIR SW SW SW W W W NW NW NW W S S S SE SE SE SE SE SE SE SE
WIND SPD 19 24 24 25 21 25 25 18 12 10 6 10 13 13 13 13 13 19 20 21 25
WIND GUST 32
CLOUDS FW FW FW CL CL FW FW SC SC SC B1 SC FW FW SC SC B1 B2 B2 B2 B2
CLOUDS(%) 9 9 23 5 4 8 20 26 50 27 53 44 24 10 34 47 66 74 83 87 87
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 30
RAIN SHWRS SC SC SC
MIX HGT <1 2 3 4 1 2 1 <1 <1 2 4 4 <1 1 <1 <1 <1 1 2 4 3
T WIND DIR S S SW SW SW W W NW NW W SW S S S S S S S S S SE
T WIND SPD 13 19 21 28 11 17 16 13 10 11 9 13 10 9 9 11 10 10 12 10 9
DISPERSION GD GD GD GD FR FR FR FR GD
ADI 15 33 56 80 13 19 14 12 8 26 35 52 9 8 8 10 11 15 26 29 12
MAX LVORI 2 1 1 1 2 2 3 4 4 2 1 1 3 3 3 4 4 4 4 4 4
STABILITY D D D D D D D D C C C C D D D D D D D D D
CEILING None None None None None None None None 500 400
STA PRES 26.70 26.60 26.64 26.68 26.77 26.76 26.79 26.76 26.75 26.67
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 48 56 17 24 19 37 30 47
TEMP 54 55 45 34 23 18 22 22 20 20 34 32 31 32 45 42
DEWPT 51 52 44 24 12 5 3 0 3 1 6 16 19 23 31 35
RH 90 90 96 66 62 56 43 37 47 43 30 51 61 69 58 76
WIND SPD 15> 15> 15> 15> 15> <15 <15 <15
AVG CLOUDS OV B2 B2 B2 B2 B1 B1 FW SC B1 SC SC SC B1 B1 B1
POP 12HR 80 80 30 5 0 5 5 10
RAIN SHWRS SC O O NM
SNOWSHWRS 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