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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
413 AM EDT Fri Oct 20 2017

VAZ018-202100-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
413 AM EDT Fri Oct 20 2017

Date             Fri 10/20/17            Sat 10/21/17            Sun 10/22/17
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                 73          49          75          49          75
TEMP          47 44 60 69 71 63 57 54 52 49 63 71 73 64 59 55 53 51 64 71 73 66
DEWPT         42 43 48 48 48 48 48 48 46 45 51 50 50 49 48 48 46 46 52 51 50 50
MAX/MIN RH                   42          89          44          82          44
RH            83 96 64 47 44 58 72 80 80 86 65 47 44 58 67 77 77 83 65 49 44 56
WIND DIR      NW NW NW NW  W  S  W  N  N  N SE SE SE SE SE SE  E SE SE  S  S SE
WIND SPD       2  1  3  2  2  0  0  0  0  1  2  3  4  3  2  2  1  1  2  5  5  4
CLOUDS        FW FW FW CL CL CL CL CL CL FW FW FW FW SC SC SC SC SC SC SC SC SC
CLOUDS(%)     16 13  6  0  1  1  1  1  2 10 11 25 16 29 35 39 26 34 26 27 30 43
VSBY           7  2  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7
POP 12HR                      0           0           0           0           0
Obvis            PF                                                            
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES         5  5  5  3  2  2  2  3  3  3  3  3  3  3  3  3  4  4  4  4  3  4
MIX HGT       <1 <1  1  3  4 <1 <1 <1 <1 <1  2  3  3  1 <1 <1 <1 <1  2  3  3  2
T WIND DIR    NW NW NW NW NW  S  S SE SE NW  S  S SE SE  S  S SW SW  S  S SE  S
T WIND SPD    10  9  6  3  3  2  3  2  3  2  5  6  6  9  2  2  1  0  8 11 12 16
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            5  9 11 13 15  1  2  1  2  2 12 27 24  4  1  1  1  0 17 35 42  7
MAX LVORI      4  6  3  2  2  3  3  4  5  7  2  2  2  3  4  4  6  8  3  1  1  3
STABILITY      G  B  B  B  B  G  G  G  G  B  B  B  C  F  G  G  G  B  B  C  C  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.03 27.98 28.02 28.05 28.09 28.08 28.11 28.10 28.11 28.06


Date          Mon 10/23/17 Tue 10/24/17 Wed 10/25/17 Thu 10/26/17
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       53      68      55      65      42      54      37      55
TEMP          59 54 66 62 58 58 65 56 48 43 54 49 42 39 55 49
DEWPT         51 54 59 58 56 54 55 47 41 38 38 36 35 34 35 35
RH            75100 78 87 93 86 70 72 77 82 54 61 76 82 47 58
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B2 B2 OV OV B2 B2 SC SC SC SC SC SC SC SC
POP 12HR           20      50      80      60      20      20      10      10
RAIN SHWRS       IS SC SC NM  O NM NM IS IS IS IS            
TSTMS                        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