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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
403 AM EST Tue Dec 12 2017

VAZ024-122100-
RAWS 441631
37.63N  79.51W Elev. 865 ft
403 AM EST Tue Dec 12 2017

Date             Tue 12/12/17            Wed 12/13/17            Thu 12/14/17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19

MAX/MIN TEMP                 44          15          34          23          42
TEMP             33 38 42 37 30 26 24 22 16 26 31 33 29 28 26 26 23 34 39 40 35
DEWPT            30 30 22 15 13  8  5  6  5  6  4  5  7 11 13 17 17 21 23 24 25
MAX/MIN RH                   40          63          29          76          48
RH               89 73 44 40 49 46 43 49 61 42 31 30 39 48 57 68 77 58 52 52 66
WIND DIR          W  W  W  W NW NW NW  W  W  W  W SW  S SW SW  W  W  W NW NW NW
WIND SPD          8 13 16 18 14 12 14 14 12 12 12  8  8  8  9 11 13 16 11  8  4
WIND GUST              31 28    26    26                                       
CLOUDS           B2 SC B1 SC SC B1 SC SC FW FW FW SC B1 B1 B1 B1 B1 B1 SC SC SC
CLOUDS(%)        78 50 58 37 31 66 29 33 17 13 16 34 54 51 54 62 60 56 46 43 42
VSBY              7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7
POP 12HR                      5           5           5          20          10
SNOWSHWRS                                               IS IS IS               
LAL               1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES            3  4  4  4  3  4  4  4  3  4  5  4  3  4  2  3  4  4  4  4  5
MIX HGT          <1  3  5  7  6  6  5  4  3  4  3  3 <1 <1 <1 <1 <1  4  4  4  3
T WIND DIR        W  W NW NW NW NW NW NW NW  W  W SW  S  S SW  W  W NW NW NW NW
T WIND SPD        8 25 28 33 34 35 35 33 24 19 14 14 10  9  9 11 13 25 16 11 10
DISPERSION                   GD FR GD GD             PR PR PR FR             VP
ADI               9 64 89117 47 48 48 44 57 50 37 47  9  8  8 10 15 70 46 42  7
MAX LVORI         8  1  1  1  1  1  1  1  1  1  1  1  2  2  2  3  4  1  1  1  3
STABILITY         D  D  D  D  D  D  D  D  D  D  D  C  D  D  D  D  D  D  D  C  E
CEILING              5800  None  None  None  None  None  None  3300  None  None
STA PRES            28.12 28.15 28.19 28.24 28.30 28.23 28.14 28.06 28.21 28.35


Date          Fri 12/15/17 Sat 12/16/17 Sun 12/17/17 Mon 12/18/17
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly     01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19

MIN/MAX TEMP       25      38      23      44      31      52      34      50
TEMP          31 26 36 32 28 23 44 37 33 32 52 40 37 34 50 42
DEWPT         24 23 23 22 19 17 19 22 24 25 32 33 34 32 31 31
RH            75 88 59 66 68 77 36 54 69 75 46 76 89 92 48 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B2 B2 SC SC FW FW FW SC B1 B1 B1 B1 SC SC
POP 12HR            5      20      10       0      10      20      30      20
FLURRIES                  SC                                 
RAIN                 S  S                                    
RAIN SHWRS             IS                      IS IS SC IS   
SNOW                 S  S                                    
SNOWSHWRS              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