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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Wed Jul 17 2024

NCZ018-172000-
RAWS 311941
36.22N  81.63W Elev. 3254 ft
1031 AM EDT Wed Jul 17 2024

Date             Wed 07/17/24            Thu 07/18/24            Fri 07/19/24
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          64          76          59          75
TEMP                77 81 79 72 68 66 65 67 71 73 71 70 64 62 59 62 69 71 71 68
DEWPT               67 66 67 66 66 65 64 65 66 66 64 63 61 59 57 59 60 62 63 63
MAX/MIN RH                   60         100          78          92          72
RH                  71 60 67 81 93 97 97 93 84 79 79 78 90 90 93 90 73 73 76 84
WIND DIR             W  W  W  W  W  W  W NW NW NW NW NW NW  N  N  N  E SE SE SE
WIND SPD             6  8  8  5  4  4  4  4  4  5  5  3  3  2  2  2  3  4  3  2
CLOUDS              SC B1 B1 B2 B2 B1 B1 B1 B2 B2 B2 B1 SC B1 SC B1 B1 B2 B2 B1
CLOUDS(%)           33 51 68 74 73 62 69 62 70 75 72 63 45 51 50 60 69 72 70 68
VSBY                 7  6  4  3  8  5  7  6 10 10 10  5                        
POP 12HR                     70          60          60          20          50
RAIN SHWRS             IS SC NM SC SC SC NM NM NM SC IS IS       SC SC SC SC SC
TSTMS                  IS SC NM SC SC       IS NM SC                   IS IS   
LAL                  1  2  3  4  3  3  1  1  2  4  3  1  1  1  1  1  1  2  2   
HAINES               2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2
MIX HGT              3  5  4  1 <1 <1 <1 <1  2  2  2 <1 <1 <1 <1 <1  4  5  4 <1
T WIND DIR           W  W  S SW  W NW NW NW NW NW NW  N  N  N  N NE  E  S  S SE
T WIND SPD          11  8  9 11  6 11 10 10  8  9 11 12 10  4  3  4  8  4  6  6
DISPERSION                   PR VP VP VP             VP VP VP VP             VP
ADI                 40 32 33  8  5  8  7 11 17 26 32  6  5  2  2  5 38 18 35  3
MAX LVORI            3  1  3  4  6  6  6  5  4  3  3  4  5  6  7  6  3  3  3  5
STABILITY            B  C  C  E  E  E  E  C  C  C  C  F  F  F  F  B  B  C  B  F
CEILING                    2300  1300   200   200  3200  None  None   600  1500
STA PRES                  26.87 26.87 26.89 26.93 26.93 26.97 26.98 27.03 27.01


Date          Sat 07/20/24Sun 07/21/24Mon 07/22/24Tue 07/23/24
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       62      74      61      76      62      77      62      76
TEMP          64 63 70 69 65 64 73 68 64 64 74 69 65 64 73 69
DEWPT         63 63 66 65 63 63 66 65 63 63 67 65 65 64 68 66
RH            97100 87 87 93 97 79 90 97 97 79 87100100 84 90
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR           30      70      40      60      50      60      50      60
RAIN SHWRS    SC SC SC NM SC IS SC NM SC SC SC NM SC SC SC NM
TSTMS               IS SC SC    IS SC SC    IS SC SC    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