Fire Weather Point Forecast Matrices
Mason RAWS
Issued by NWS San Angelo, TX

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704
FOUS54 KSJT 070902
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
302 AM CST SUN FEB 7 2016<br>

TXZ170-072245-
MASON RAWS-MASON TX
30.74N  99.19W ELEV. 1463 FT
302 AM CST SUN FEB 7 2016

DATE             SUN 02/07/16            MON 02/08/16            TUE 02/09/16
UTC 3HRLY     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
CST 3HRLY     03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18

MAX/MIN                      70          32          59          29          70
TEMP          30 27 35 59 70 63 48 42 37 33 37 52 59 53 42 37 33 30 37 60 70 64
DEWPT         23 21 27 24 23 23 29 28 28 23 21 13 15 17 20 19 20 21 23 24 26 27
MIN/MAX RH                   17          70          17          75          19
RH            74 76 72 26 17 21 47 57 69 66 51 21 17 24 41 48 58 69 56 25 19 24
WIND DIR      SW SW SW SW  W  W  N  N  N  N  N  N NW NW NW  W  W NW  W  W NW  W
WIND SPD       3  3  5 11 10  5  8  6  8  5 10 12 12  8  3  3  3  3  4  8  9  5
CLOUDS        CL CL CL CL CL CL CL CL CL FW FW FW FW FW FW CL CL CL CL FW FW CL
CLOUDS(%)      2  1  1  1  1  5  5  4  4  8  8  7  7  6  6  2  2  5  5  6  6  1
POP 12HR                      0           0           0           0           0
QPF 12HR                      0           0           0           0           0
LAL                     1     1     1     1     1     1     1     1     1     1
HAINES                  5     5     5     4     4     4     4     4     4     5
MIX HGT              3000  2600   700   600  4300  4200  3100   300  4300  3600
T WIND DIR             SW     W    NW     N     N     N     W    NW    NW     W
T WIND SPD             19    14    16    20    21    18    10     6     9     8
SMOKE DISP             FR    GD    PR    PR    GD    GD    PR    PR    PR    PR


DATE               WED 02/10/16  THU 02/11/16  FRI 02/12/16  SAT 02/13/16
UTC 6HRLY     06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6HRLY     00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

MIN/MAX            38    75      44    77      44    74      46    73
TEMP          46   39 66 69 52   45 69 71 52   45 67 69 53   47 66 68
DEWPT         27   26 28 28 28   32 36 34 36   39 44 42 43   41 42 42
MAX/MIN RH
RH            47   59 24 21 39   60 30 26 54   78 43 37 69   79 42 38
PWIND DIR           W    SW      SW    SW       S     S       E     E
WIND CHAR         <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    CL   CL CL CL CL   CL CL CL FW   FW FW FW FW   SC SC SC
POP 12HR            0     0       0     0       0     0       0     5

$$

BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT

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 HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
                                    RELATIVE TO DUE NORTH.
     EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
              27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
     EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
              B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
     TYPE...
       RAIN...........RAIN
       RAIN SHWRS.....RAIN SHOWERS
       TSTMS..........THUNDERSTORMS
       DRIZZLE........DRIZZLE
       SNOW...........SNOW
       SNOWSHWRS......SNOW SHOWERS
       SLEET..........SLEET
       FLURRIES.......FLURRIES
       FRZG RAIN......FREEZING RAIN
       FRZG DRZL......FREEZING DRIZZLE
     COVERAGE...
       S..............SLIGHT CHANCE
       C..............CHANCE
       L..............LIKELY
       O..............OCCASIONAL
       D..............DEFINITE
       AR.............AREAS
       PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
     TYPE...
       F..............FOG
       PF.............PATCHY FOG
       F+.............DENSE FOG
       H..............HAZE
       BS.............BLOWING SNOW
       K..............SMOKE
       BD.............BLOWING DUST
       AF.............VOLCANIC ASHFALL
LAL(CAT)............................LIGHTNING ACTIVITY LEVEL
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
DISPERSION..........................LDSI
MAX LVORI...........................LVORI
STA PRES (INCHES MERCURY)...........STATION PRESSURE
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
     EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
     IN EFFECT FOR THE INDICATED HOUR

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).......................20 FT. WIND SPEED
     EXAMPLE: <15 = LESS THAN 15 MPH; 15> = 15 MPH OR GREATER
AVE CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
     SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS



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