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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Sep 18 2026

NCZ003-182000-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
801 AM EDT Fri Sep 18 2026

Date             Fri 09/18/26            Sat 09/19/26            Sun 09/20/26
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                 91          67          82          66          85
TEMP                82 88 89 81 76 73 71 69 72 77 79 74 69 68 67 67 72 80 83 77
DEWPT               71 70 71 71 70 69 68 68 71 70 71 69 67 67 66 67 71 71 72 71
MAX/MIN RH                   54         100          71         100          70
RH                  69 55 56 72 82 87 90 97 97 79 77 84 93 97 97100 97 74 70 82
WIND DIR            NW  N NW  N  N  N  N NE  E  E  E  E  N  N  N  N  S  S SW  N
WIND SPD             4  3  4  2  1  0  0  1  3  4  4  2  0  0  0  0  1  3  2  0
CLOUDS              FW B1 B1 SC B1 B1 B2 B2 B1 B1 SC B1 B1 B2 B2 B2 B2 B1 B1 B1
CLOUDS(%)            9 51 55 47 56 57 71 71 56 53 45 65 65 77 81 74 71 69 69 54
VSBY                10  9  9  9  9  5  7  6  6  6  6  7 10 10 10 10 10 10 10 10
POP 12HR                     30          10          50          30          50
RAIN SHWRS             SC SC             IS SC IS IS SC SC             SC SC IS
TSTMS                  IS IS                   IS IS                   SC SC IS
Obvis                              PF    PF                                    
MIX HGT              3  5  3 <1 <1 <1 <1 <1  2  2  2 <1 <1 <1 <1  1  2  3  2 <1
T WIND DIR          NW NW NW NW  N  N  N  N NE  E  E  E SE SE  S SW SW  W SW SW
T WIND SPD          17 12 16 11 10  9  8  9  5  4  5  4  4  3  2  5  5  6  4  3
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 63 70 52  5  5  4  4  7 12 10 15  2  2  2  1  8 12 21 13  2
MAX LVORI            1  1  1  3  4  5  6  8  5  4  4  6  6  8 10  8  5  3  3  5
STABILITY            B  B  B  F  F  F  F  C  C  D  B  F  F  F  F  C  C  C  B  F
CEILING              None  None  None  4300  None  None   600   500   500  6800
STA PRES            28.25 28.18 28.18 28.17 28.19 28.17 28.18 28.14 28.14 28.07


Date          Mon 09/21/26Tue 09/22/26Wed 09/23/26Thu 09/24/26
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       65      86      64      78      61      69      58      74
TEMP          68 67 84 76 67 66 74 72 64 61 66 65 60 59 70 68
DEWPT         67 66 71 70 67 66 70 68 64 61 66 65 60 59 64 63
RH            97 97 65 82100100 87 87100100100100100100 81 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC OV B2 B1 B1 B2 B2 B2 B2 B2 B1 B2 B1 B1
POP 12HR           20      80      70      70      70      50      40      20
RAIN SHWRS    IS    IS  O NM SC SC NM NM SC SC SC SC       IS
TSTMS         IS    IS SC SC       SC 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