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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Thu Mar 12 2026
NCZ003-130800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
802 PM EDT Thu Mar 12 2026
Date 03/12/26 Fri 03/13/26 Sat 03/14/26 Sun
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 28 58 38 66 41
TEMP 36 32 29 30 44 53 57 53 48 45 42 39 55 64 66 59 50 47 44 43
DEWPT 21 22 21 21 25 29 33 33 33 35 35 34 37 38 40 41 40 39 38 39
MIN/MAX RH 72 39 84 37 86
RH 54 66 72 69 47 39 40 46 56 68 76 82 51 38 38 51 68 74 79 86
WIND DIR W N SW SE S S SW SW W SW NW NW NW S S SE SE SE SE E
WIND SPD 1 0 1 2 9 11 10 4 2 2 2 1 1 2 3 1 1 1 1 1
WIND GUST 23 25 25 17 12 12
CLOUDS FW FW FW FW FW FW FW CL CL SC SC B1 SC SC SC FW FW FW FW SC
CLOUDS(%) 9 6 10 10 8 11 6 5 5 26 39 53 40 39 46 15 8 11 18 45
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 1 3 4 5 1 1 <1 <1 <1 2 5 4 <1
T WIND DIR N W SW S SW SW SW SW W W NW NW NW SW S SE
T WIND SPD 8 2 3 6 24 24 26 10 5 5 8 6 10 5 8 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 1 2 11 90 92112 5 3 3 4 7 26 33 41 2
MAX LVORI 2 3 3 3 1 1 1 2 3 3 3 4 2 1 1 2
STABILITY G G G B B C C F G G G A A B B G
CEILING None None None None None None None None None
STA PRES 28.24 28.25 28.22 28.07 28.09 28.14 28.22 28.23
Date 03/15Mon 03/16/26Tue 03/17/26Wed 03/18/26Thu 03/19/26
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 63 51 64 23 40 21 48 29 57
TEMP 59 62 57 57 60 48 31 25 38 34 26 23 44 41 34 32 53 51
DEWPT 49 52 55 56 48 25 12 6 5 5 7 9 11 20 22 24 31 34
RH 69 70 93 96 64 40 45 44 25 29 44 54 26 42 61 72 43 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 OV OV OV OV B1 B1 SC SC SC SC FW SC B1 SC SC SC B1
POP 12HR 30 80 80 20 0 0 5 10 5
RAIN SHWRS SC NM O O SC
SNOWSHWRS 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