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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Fri Mar 13 2026
NCZ003-140800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
832 PM EDT Fri Mar 13 2026
Date 03/13/26 Sat 03/14/26 Sun 03/15/26 Mon
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 41 66 44 65 56
TEMP 49 47 43 41 54 64 66 60 54 49 46 45 52 62 65 62 59 59 60 60
DEWPT 34 35 35 33 33 34 36 38 39 38 38 38 46 50 51 52 55 56 58 58
MIN/MAX RH 74 32 79 61 95
RH 56 63 73 73 45 32 33 44 57 66 73 76 80 65 60 70 87 90 93 93
WIND DIR SW W W NW NW W S SE E E E E E SE SE SE SE S S S
WIND SPD 11 8 5 4 4 2 3 4 5 4 4 5 5 6 9 10 11 12 14 17
WIND GUST 17 19 28
CLOUDS CL FW FW FW FW SC SC FW FW FW FW B1 B2 B2 B2 B2 B2 OV OV OV
CLOUDS(%) 5 19 21 24 15 28 27 10 11 19 22 58 81 76 79 86 86 94 92 99
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 3 1 2 5
POP 12HR 0 0 0 40 90
RAIN SHWRS SC SC O O O O O
MIX HGT <1 <1 <1 <1 2 4 5 <1 <1 <1 <1 <1 2 3 4 1
T WIND DIR SW SW W W NW W S E E E E E SE SE SE SE
T WIND SPD 8 5 3 2 10 5 4 2 5 6 4 3 5 10 16 16
DISPERSION FR PR PR VP PR VP VP FR FR FR GD
ADI 5 4 2 3 28 27 26 1 3 3 2 4 10 26 42 0
MAX LVORI 3 3 3 3 2 2 2 2 3 3 3 4 4 3 1 4
STABILITY E E F B B B B F F F F D D D D A
CEILING None None None None None None 1800 1700 400
STA PRES 28.95 28.99 29.09 29.09 29.11 29.11 29.12 28.97
Date 03/16Tue 03/17/26Wed 03/18/26Thu 03/19/26Fri 03/20/26
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 64 27 40 22 46 31 59 38 65
TEMP 62 53 35 28 38 35 27 23 42 42 35 32 55 53 44 40 63 59
DEWPT 55 33 17 10 7 7 10 12 11 19 22 24 31 36 36 36 40 39
RH 78 46 47 46 27 30 48 62 28 39 59 72 40 52 73 85 43 47
WIND SPD 15> 15> <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B1 SC SC SC SC B1 SC SC SC SC SC FW FW SC SC B1
POP 12HR 100 10 0 0 0 5 5 5 20
RAIN SHWRS O O IS
TSTMS 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