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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Thu Mar 12 2026
NCZ006-130800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 AM EDT Thu Mar 12 2026
Date 03/11/26 Thu 03/12/26 Fri 03/13/26 Sat
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 53 59 31 60 41
TEMP 69 59 47 38 44 41 39 34 32 32 47 55 59 54 51 48 46 43
DEWPT 58 53 44 37 31 27 25 25 25 25 27 29 31 32 33 35 36 35
MIN/MAX RH 83 52 76 34 75
RH 68 80 89 96 60 57 57 69 75 75 45 37 34 43 50 60 68 73
WIND DIR SW NW NW N N NW NW W SW S S S SW SW SW SW W W
WIND SPD 9 10 12 10 8 2 1 1 1 2 10 14 16 9 6 4 2 2
WIND GUST 21 20 24 21 18 26 27 19 17
CLOUDS OV OV OV OV FW CL CL FW FW FW FW SC SC SC FW FW FW SC
CLOUDS(%) 96 92 99 91 23 5 3 6 16 16 12 35 43 36 14 14 18 29
VSBY 10 9 4 1 8 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 100 0 0 0
RAIN S C D C
MIX HGT 2 2 2 2 3 <1 <1 <1 <1 <1 3 4 4 2 1 <1 <1 <1
T WIND DIR SW NW N N N NW N NW W S SW SW SW SW SW SW SW SW
T WIND SPD 9 14 28 19 8 3 5 3 3 4 18 21 28 11 11 9 6 4
DISPERSION PR VP VP VP VP PR PR VP VP
ADI 10 27 60 42 29 2 3 2 2 5 61 59 78 8 5 4 3 5
MAX LVORI 3 3 4 4 2 3 3 3 4 4 1 1 1 2 2 3 3 4
STABILITY D D D D B G G G G B C D D E F F G B
CEILING 10900 1100 None None None None None None None
STA PRES 29.12 29.32 29.46 29.56 29.58 29.56 29.41 29.40 29.44
Date 03/14Sun 03/15/26Mon 03/16/26Tue 03/17/26Wed 03/18/26
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 69 43 71 61 68 31 47 26 51
TEMP 65 59 50 45 68 65 62 62 67 51 38 32 43 39 31 28 48 44
DEWPT 37 40 39 41 51 52 57 60 55 35 22 16 12 13 14 15 17 22
RH 35 49 66 86 54 63 84 93 65 54 52 51 28 34 49 58 29 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC B2 OV B2 B1 SC SC FW FW SC SC FW SC
POP 12HR 0 5 20 70 80 20 10 5 5
RAIN SHWRS IS SC NM O NM 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