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

NCZ001-042100-
RAWS 310141
36.40N  81.29W Elev. 3009 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                 72          55          74          57          77
TEMP          57 57 65 71 71 67 62 59 57 59 68 73 73 69 64 61 58 61 71 75 75 71
DEWPT         56 56 56 56 57 57 56 56 56 57 58 58 59 59 58 57 55 57 60 60 60 61
MAX/MIN RH                   59          95          60          92          59
RH            96 96 73 59 61 70 81 90 96 93 70 59 62 70 81 87 90 87 68 60 60 71
WIND DIR      NE NE  E  E  E SE SE SE  E  N  S SE  S  S SW  W  W NW  S  S  S  S
WIND SPD       2  3  5  5  5  3  2  2  0  1  2  3  3  2  2  1  1  1  4  5  4  3
CLOUDS        B1 B1 SC SC B1 SC SC SC B1 FW FW FW FW FW FW FW FW SC FW SC SC SC
CLOUDS(%)     68 65 46 46 53 50 35 43 54 20 19 19 14 12 16 10 22 30 24 38 36 47
VSBY           7  7  8 10 10 10 10  8  8  8 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         4  5  5  3  4  3  3  3  3  4  4  4  4  4  4  4  4  4  4  3  3  3
MIX HGT       <1 <1  2  3  4 <1 <1 <1 <1 <1  2  3  3  1 <1 <1 <1 <1  2  3  3  2
T WIND DIR    NE NE NE NE  E SE SE SE  E  S  S SE SE  S SW  W  W NW  S  S SE  S
T WIND SPD     4  6 11  8  6  5  2  2  1  3  4  3  5  6  2  2  1  1  8  8 11 18
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            1  3 22 28 20  4  1  1  0  1 11 16 25  3  1  0  0  1 23 30 40  8
MAX LVORI      8  7  3  2  2  3  5  7  7  7  3  2  2  3  6  6  7  6  3  2  1  3
STABILITY      F  C  C  C  D  F  G  F  F  B  B  B  B  G  G  G  G  B  C  C  C  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            27.25 27.23 27.29 27.31 27.35 27.32 27.35 27.36 27.38 27.34


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       58      77      59      79      61      82      63      82
TEMP          63 61 74 69 62 63 77 73 65 64 80 75 66 66 79 73
DEWPT         59 59 63 64 61 60 62 63 61 60 65 65 62 62 66 65
RH            87 93 69 84 97 90 60 71 87 87 60 71 87 87 64 76
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 SC SC FW SC SC FW FW FW FW FW FW SC SC
POP 12HR           20      50      10      20       5      30      10      40
RAIN SHWRS    IS IS SC SC          IS          SC       IS SC
TSTMS            IS    SC          IS          SC          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