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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
433 AM EDT Thu Oct 19 2017

VAZ024-192100-
RAWS 441631
37.63N  79.51W Elev. 865 ft
433 AM EDT Thu Oct 19 2017

Date             Thu 10/19/17            Fri 10/20/17            Sat 10/21/17
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                 75          43          77          45          76
TEMP          41 39 58 70 73 60 53 48 45 43 61 72 75 64 57 53 50 48 63 72 74 64
DEWPT         39 38 40 41 42 43 43 44 43 43 49 46 46 49 48 47 47 47 50 49 49 51
MAX/MIN RH                   32          99          35          97          40
RH            92 96 51 35 33 53 69 86 93100 65 39 36 58 72 80 89 96 62 44 41 63
WIND DIR      NW NW  W  W SW  W NW NW NW NW NW  W  S SE  E NE  N  N  S  S  S  S
WIND SPD       2  2  3  4  4  3  2  2  3  1  3  2  2  1  1  0  0  0  1  4  4  2
CLOUDS        FW CL CL CL CL CL FW CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC
CLOUDS(%)     20  0  0  0  0  0  9  0  0  0  0  0  0  0  0  0  0 12  8 21 30 35
VSBY          10 10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                      0           0           0           0           0
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES         4  4  4  5  6  5  4  4  4  4  4  5  5  4  3  3  3  3  3  4  5  4
MIX HGT       <1 <1  2  3  2 <1 <1 <1 <1 <1  2  4  3 <1 <1 <1 <1 <1  2  4  3  1
T WIND DIR    NW NW  W  W  W  W NW NW NW NW NW SW SW SE  E NE  N  N  S  S  S SE
T WIND SPD     2  2  5  5  5  3  2  2  3  1  3  3  2  3  1  0  0  0  5  5  6  4
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            1  3 12 18 13  1  1  1  1  1  9 17  7  2  0  0  0  0 16 22 20  2
MAX LVORI      7  8  2  2  2  2  4  6  8 10  3  2  2  3  4  4  6  9  2  2  2  3
STABILITY      G  B  B  C  C  G  G  G  G  B  B  B  B  G  G  G  G  B  B  C  C  G
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.74 28.68 28.71 28.72 28.76 28.72 28.78 28.80 28.84 28.81


Date          Sun 10/22/17 Mon 10/23/17 Tue 10/24/17 Wed 10/25/17
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       47      76      51      74      54      68      43      59
TEMP          55 50 72 65 57 53 71 66 59 55 67 58 50 45 57 49
DEWPT         51 49 51 52 52 51 58 59 57 54 54 49 43 40 40 38
RH            86 96 48 63 83 93 63 78 93 96 63 72 77 82 53 66
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC B1 B2 B2 B2 OV OV B2 B2 B1 SC B1 B1
POP 12HR            0       5      20      50      60      60      30      20
RAIN                       S  S                              
RAIN SHWRS                      SC SC NM NM NM NM 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
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