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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Wed Mar 11 2026
NCZ001-112000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
802 AM EDT Wed Mar 11 2026
Date Wed 03/11/26 Thu 03/12/26 Fri 03/13/26
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 70 33 38 27 48
TEMP 63 69 69 63 60 55 47 37 31 33 35 33 30 29 29 30 38 45 47 43
DEWPT 55 54 51 49 50 52 47 35 26 21 16 14 15 15 14 15 16 20 23 26
MAX/MIN RH 52 100 44 57 35
RH 75 59 53 60 69 90100 92 81 61 45 45 53 55 53 53 40 36 38 51
WIND DIR SW W W SW W W NW NW NW NW NW NW NW SW S S S SW SW W
WIND SPD 13 17 19 19 21 25 29 36 34 27 24 18 11 8 10 14 21 21 21 19
WIND GUST 27
CLOUDS B1 SC SC SC B1 B2 OV OV B2 B2 FW CL CL FW FW FW FW SC SC FW
CLOUDS(%) 63 48 50 43 58 86 94 94 86 71 20 3 4 7 6 9 17 39 34 13
VSBY 10 10 10 10 10 9 7 6 7 10 10 10
POP 12HR 10 90 40 0 0
RAIN SHWRS SC O O SC
SNOWSHWRS SC
MIX HGT 3 5 6 1 2 2 1 1 2 4 5 2 <1 <1 <1 <1 2 5 4 2
T WIND DIR W SW SW SW SW W NW NW NW NW NW NW N S S S S SW SW SW
T WIND SPD 23 25 25 10 10 11 21 24 26 33 31 19 13 1 2 10 14 13 14 8
DISPERSION GD GD GD GD GD FR PR FR GD
ADI 50 79 81 9 12 13 20 38 47 87 92 22 9 1 2 11 27 42 43 9
MAX LVORI 3 1 1 3 3 5 5 4 3 1 1 2 2 3 2 2 2 1 1 2
STABILITY D D D D D D D D D D D D E E E D D D D D
CEILING 9800 None 17000 200 200 None None None None None
STA PRES 26.70 26.61 26.56 26.55 26.63 26.69 26.78 26.77 26.79 26.71
Date Sat 03/14/26Sun 03/15/26Mon 03/16/26Tue 03/17/26
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 36 55 42 54 37 45 18 29
TEMP 41 37 53 49 44 43 50 53 53 42 32 28 23 19 27 26
DEWPT 28 29 31 34 35 37 44 46 48 37 23 14 11 7 5 6
RH 59 72 43 56 70 79 80 77 83 82 69 55 59 59 38 42
WIND SPD 15> <15 <15 15> 15> 15> 15> 15>
AVG CLOUDS FW FW SC SC FW FW B2 B2 B2 OV B2 B1 SC SC SC SC
POP 12HR 0 0 5 20 60 40 10 10
RAIN SHWRS IS SC NM SC
SNOWSHWRS SC 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