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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Sat Sep 19 2026

NCZ006-192000-
RAWS 310801
36.37N  79.29W Elev. 580 ft
401 AM EDT Sat Sep 19 2026

Date             Sat 09/19/26            Sun 09/20/26            Mon 09/21/26
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                 82          66          87          67          86
TEMP          70 71 77 81 81 76 72 70 68 69 78 84 85 78 72 71 69 68 80 85 82 74
DEWPT         69 69 70 69 68 68 67 66 65 66 68 68 68 70 70 69 69 68 72 71 71 69
MAX/MIN RH                   63          97          56         100          62
RH            97 93 79 67 65 76 84 87 90 90 71 59 57 76 93 93100100 77 63 69 84
WIND DIR      NE NE NE NE NE  E  E  S  S  S  S  S  S  S  N  N  N  N NE NE NE NE
WIND SPD       2  4  6  5  5  3  2  1  1  1  2  3  3  2  0  0  0  0  3  5  6  5
CLOUDS        B1 B2 B2 SC SC SC SC SC SC SC B1 FW FW FW SC SC SC SC SC B2 B2 B2
CLOUDS(%)     53 75 76 50 40 46 46 46 48 37 55 25 16 16 45 37 38 41 37 73 73 84
VSBY           6  5 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     20           5          10          10          60
RAIN SHWRS                                                             NM NM  O
TSTMS                                                                  SC SC SC
Obvis         PF PF                                                            
MIX HGT       <1 <1  2  3  3 <1 <1 <1 <1 <1  3  5  3 <1 <1 <1 <1 <1  3  4  2 <1
T WIND DIR    NE NE  E  E  E  E  E SE SE  S SW SW SW  S  S  S SW SW  W  W SW  W
T WIND SPD     9 10 13 10 10 10  2  4  5  6  9  8  8  4  5  5  5  5 12  8 10  8
DISPERSION    VP             VP VP VP VP             VP VP VP VP             PR
ADI            4 11 25 33 41  5  1  2  3  7 28 44 31  2  3  3  3  6 41 22 22  5
MAX LVORI      7  5  3  3  1  4  5  6  6  5  3  1  1  4  6  8  9  9  3  2  3  5
STABILITY      F  D  D  B  B  F  F  F  F  A  C  B  B  G  F  G  G  A  B  D  D  E
CEILING              1100  None  None  None  None  None  None  None  None  4700
STA PRES            29.42 29.40 29.42 29.40 29.40 29.31 29.31 29.29 29.28 29.21


Date          Tue 09/22/26Wed 09/23/26Thu 09/24/26Fri 09/25/26
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       63      75      59      65      57      68      54      73
TEMP          67 64 74 69 62 59 64 62 59 57 67 64 57 55 71 66
DEWPT         67 64 69 67 62 59 64 62 59 57 64 62 57 55 60 60
RH           100100 84 93100100100100100100 90 93100100 68 81
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1
POP 12HR           80      60      50      50      40      20      10      10
RAIN SHWRS     O SC SC NM SC SC SC SC SC IS IS IS            
TSTMS         SC IS    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