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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1019 AM EST Tue Feb 20 2018

WVZ043-202100-
RAWS 465401
37.53N  81.00W Elev. 2725 ft
1019 AM EST Tue Feb 20 2018

Date             Tue 02/20/18            Wed 02/21/18            Thu 02/22/18
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                 72          54          71          56          65
TEMP                   70 71 65 62 61 59 55 63 68 71 66 61 59 57 56 61 64 65 59
DEWPT                  54 53 52 53 53 53 54 57 59 58 56 57 55 55 54 56 57 56 54
MAX/MIN RH                   53          94          62          96          72
RH                     57 53 63 72 75 80 96 81 73 63 70 87 87 93 93 84 78 73 83
WIND DIR                S  S  S  S  S  S  S SW SW  W  W  S  S  S  S  S SW  W  S
WIND SPD                8  8  9 10  8  6  6  9 12 10  5  3  3  5  5  6  8  6  5
CLOUDS                 FW FW FW FW SC FW SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 OV OV
CLOUDS(%)              19 20 20 22 27 25 44 44 54 61 63 61 69 65 76 86 87 88 90
VSBY                   10 10  9  9  7  7  7  7  8  8  8  7  8  8  8  8  8  8  8
POP 12HR                      0          10          40          40          70
RAIN SHWRS                                  SC SC SC SC SC SC SC NM NM NM NM SC
TSTMS                                          IS IS                           
LAL                     1  1  1  1  1  1  1  1  2  2  1  1  1  1  1  1  1  1   
HAINES                  3  3  3  3  3  2  3  3  3  3  3  3  2  3  3  3  3  3  3
MIX HGT                 3  4  2  2  2  1 <1  2  4  5  1 <1 <1 <1 <1  1  4  1 <1
T WIND DIR              S  S  S SW  S  S  S SW  W  W  W  S  S  S  S  S SW  W  S
T WIND SPD             14 16 17 23 24 24  6 21 28 26 12  3  9 17 13 12 13  6  5
DISPERSION                   PR FR PR PR             PR VP VP PR             PR
ADI                    45 55 12 15 16 11  6 48 78 80  9  1  4 11 15 18 34  7  4
MAX LVORI               1  1  2  3  4  4  6  3  3  1  3  6  6  5  5  4  3  3  5
STABILITY               C  C  E  E  E  F  C  C  D  D  E  F  F  E  D  D  D  D  E
CEILING                    None  None  None  None  2500  2000  9100   500  2500
STA PRES                  27.89 27.93 27.90 27.93 27.92 27.96 27.91 27.93 27.94


Date          Fri 02/23/18 Sat 02/24/18 Sun 02/25/18 Mon 02/26/18
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       54      63      51      65      53      62      42      55
TEMP          55 54 62 59 55 54 63 60 58 57 61 56 47 44 52 48
DEWPT         53 51 55 53 52 51 56 53 54 54 53 47 43 39 37 34
RH            93 90 78 80 90 90 78 78 86 90 75 72 86 82 56 58
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    OV B2 B2 B2 B2 B2 B2 OV OV OV OV B2 B2 B1 B1 SC
POP 12HR           40      40      40      50      70      70      30      20
RAIN SHWRS    SC SC SC SC SC SC SC SC SC NM NM IS SC SC 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