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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Wed Sep 16 2026

NCZ006-170800-
RAWS 310801
36.37N  79.29W Elev. 580 ft
231 AM EDT Wed Sep 16 2026

Date           09/15/26      Wed 09/16/26            Thu 09/17/26            Fri
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                 56          88          59          94          68
TEMP                      59 59 77 86 86 77 69 65 62 63 82 91 92 81 74 71 69 71
DEWPT                     59 59 62 64 64 64 63 61 59 60 64 64 65 66 66 65 65 67
MIN/MAX RH                  100          47          92          40          90
RH                       100100 60 48 48 64 81 87 90 90 55 41 41 60 76 81 87 87
WIND DIR                   N  N  S SE  E SE  N  N  N  N SW  S  S  S SW SW  W  W
WIND SPD                   0  0  1  2  2  1  0  0  0  0  2  2  2  2  1  1  1  1
CLOUDS                    FW SC FW CL FW CL CL CL CL CL FW CL FW SC SC SC SC SC
CLOUDS(%)                  6 28  7  3  6  4  5  4  2  1  6  5 11 38 37 32 26 27
VSBY                       9  9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0           0          10           5
Obvis                     PF PF                                                
MIX HGT                   <1 <1  3  4  4 <1 <1 <1 <1 <1  3  5  6 <1 <1 <1 <1 <1
T WIND DIR                SE SE  S  S SE  S  S SW SW  S  S SW SW  S SW SW  W SW
T WIND SPD                 4  2  4  2  1  4  3  2  2  2  4  2  5  4  5  3  3  2
DISPERSION                VP             VP VP VP VP             VP VP VP VP   
ADI                        2  2 15 11  6  2  2  1  1  2 15 12 39  2  3  2  2  2
MAX LVORI                  9  9  2  2  2  3  5  6  7  6  2  2  1  3  3  4  6  6
STABILITY                  G  A  A  B  B  G  G  G  G  A  B  B  B  G  G  G  G  A
CEILING                    None  None  None  None  None  None  None  None  None
STA PRES                  29.68 29.72 29.65 29.64 29.61 29.60 29.49 29.47 29.44


Date           09/18Sat 09/19/26Sun 09/20/26Mon 09/21/26Tue 09/22/26
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       93      66      85      65      90      66      89      65      84
TEMP          92 79 71 66 83 79 69 66 88 81 71 68 87 79 69 67 81 77
DEWPT         71 72 69 65 67 67 66 66 69 69 68 68 70 70 69 67 71 70
RH            51 79 93 97 59 67 90100 54 67 90100 57 74100100 72 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B2 B2 B1 B1 B1 B1 SC B1 SC SC SC SC B1 B1 B1 B1 B1
POP 12HR           60      60      20      10      20      20      30      50      50
RAIN SHWRS       NM NM IS    IS          IS IS       SC SC IS SC SC
TSTMS            SC SC       IS          IS IS       IS 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