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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
419 AM EDT Wed Aug 4 2021

NCZ003-042100-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
419 AM EDT Wed Aug 4 2021

Date             Wed 08/04/21            Thu 08/05/21            Fri 08/06/21
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                 80          61          83          62          85
TEMP          62 65 74 78 79 74 67 65 63 65 75 80 81 76 69 66 64 67 78 82 83 77
DEWPT         60 60 61 60 62 62 61 60 59 60 62 63 63 65 62 61 60 62 64 64 65 66
MAX/MIN RH                   53          89          54          87          54
RH            93 84 64 54 56 66 81 84 87 84 64 56 54 69 78 84 87 84 62 55 55 69
WIND DIR       N  N  E  E  E  E NE  N  N  N SE SE SE  N  N  N  N  N  S  S  S  S
WIND SPD       1  3  4  5  5  2  1  1  0  0  1  2  2  0  0  0  0  0  2  2  3  1
CLOUDS        SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW SC SC SC
CLOUDS(%)     50 33 42 32 34 27 48 40 36 17 11 13  8 12 11  7  9 20 16 27 27 41
VSBY           7  7  8 10 10 10 10 10 10  9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     10          10          20          10          20
RAIN SHWRS                                  IS IS IS                   IS IS IS
TSTMS                                          IS IS                   IS IS   
LAL            1  1  1  1  1  1  1  1  1  1  1  2  2  1  1  1  1  1  1  2  2   
HAINES         5  5  5  3  4  3  3  4  4  4  4  4  4  4  4  4  4  4  4  3  3  3
MIX HGT       <1  2  3  4  5  2 <1 <1 <1  1  4  5  6  3 <1 <1 <1 <1  4  5  5  4
T WIND DIR    NE NE NE NE  E  E NE NE  E  S  S  E SE  S NW NW NW  N  S  S  S  S
T WIND SPD     6 11 12 10  9  8  2  3  3  3  3  3  5  4  1  1  1  1  6  8 10 13
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            4 26 40 37 38  4  1  1  0  4 13 23 36  2  0  0  0  0 32 46 60  6
MAX LVORI      6  4  1  1  1  3  4  6  6  5  2  2  1  3  4  6  6  6  1  1  1  3
STABILITY      F  B  C  C  C  G  F  G  G  B  B  B  B  G  G  G  G  B  B  B  B  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.14 28.13 28.18 28.21 28.25 28.21 28.24 28.25 28.27 28.23


Date          Sat 08/07/21 Sun 08/08/21 Mon 08/09/21 Tue 08/10/21
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       64      85      64      88      66      91      67      91
TEMP          69 68 81 76 68 69 85 80 70 71 87 82 72 72 87 81
DEWPT         63 64 68 68 65 65 67 69 64 66 69 70 67 67 70 70
RH            81 87 65 76 90 87 55 69 81 84 55 67 84 84 57 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 SC SC FW SC FW FW FW FW FW FW FW FW SC
POP 12HR           20      40      10      20       0      20      10      40
RAIN SHWRS    IS IS SC SC          IS          IS       IS SC
TSTMS            IS    SC          IS          IS          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
LAL(CATEGORY).......................Lightning Activity Level
HAINES(CATEGORY)....................Haines Index
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