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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1202 PM EDT Thu Mar 12 2026
NCZ003-122000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1202 PM EDT Thu Mar 12 2026
Date Thu 03/12/26 Fri 03/13/26 Sat 03/14/26
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 46 29 58 40 66
TEMP 43 46 41 36 32 30 31 44 53 57 52 48 46 43 41 54 63 65 57
DEWPT 28 21 19 20 21 20 20 25 29 32 33 33 34 34 34 39 39 41 42
MAX/MIN RH 37 68 37 77 40
RH 55 37 41 52 63 66 63 47 39 38 48 56 63 70 76 57 41 41 57
WIND DIR NW NW W W N S SE SW SW SW SW W W NW NW NW S S SE
WIND SPD 13 10 3 1 0 1 2 8 10 9 4 2 2 2 1 2 2 3 1
WIND GUST 29 26 17 21 24 24 16 12
CLOUDS SC CL CL CL CL FW FW FW FW FW FW FW FW FW B1 B1 SC SC SC
CLOUDS(%) 31 3 3 3 5 7 11 21 21 18 7 9 16 22 56 54 48 48 46
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 0 0 0 0
RAIN
RAIN SHWRS
MIX HGT 4 6 3 <1 <1 <1 1 3 4 5 1 1 1 <1 <1 2 5 5 <1
T WIND DIR N NW NW NW W SW S SW SW SW SW SW W W NW NW NW W SE
T WIND SPD 35 32 12 4 2 2 6 20 20 21 10 5 5 5 6 10 8 3 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 127146 6 2 1 1 10 65 80 89 5 3 3 3 7 26 43 19 2
MAX LVORI 1 1 2 2 3 3 3 1 1 1 2 3 3 3 4 2 1 2 3
STABILITY C C G G G G B C C C F G G G A B B B F
CEILING None None None None None None None None None
STA PRES 28.15 28.24 28.25 28.22 28.11 28.11 28.14 28.23 28.24
Date Sun 03/15/26Mon 03/16/26Tue 03/17/26Wed 03/18/26
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 42 64 54 58 23 42 23 50
TEMP 47 43 59 61 57 56 54 42 30 24 39 36 28 26 47 43
DEWPT 39 39 49 51 54 54 42 25 15 10 9 10 11 12 19 24
RH 74 86 69 70 90 93 64 50 53 54 28 33 48 55 32 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B2 OV B2 B2 B1 SC FW FW SC SC SC B1
POP 12HR 5 20 60 60 10 10 5 5
RAIN SHWRS IS SC NM NM 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