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

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804
FOUS54 KSJT 272033
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
333 PM CDT FRI MAY 27 2016<br>

TXZ170-281015-
MASON RAWS-MASON TX
30.74N  99.19W ELEV. 1463 FT
333 PM CDT FRI MAY 27 2016

DATE           05/27/16      SAT 05/28/16            SUN 05/29/16            MON
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CDT 3HRLY     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07

MIN/MAX                      67          91          71          86          70
TEMP          80 83 75 71 68 67 78 86 91 88 79 75 72 71 78 83 86 84 77 73 71 70
DEWPT         58 58 61 59 66 66 70 69 67 67 69 71 70 69 70 69 69 68 70 69 68 68
MAX/MIN RH                   96          45          95          56          92
RH            47 43 63 66 93 96 76 57 45 50 71 88 95 95 77 63 56 59 79 86 89 92
WIND DIR      SW SW  S SE  S  S  S  S SE SE SE SE SE SE SE SE SE SE SE  S  S SE
WIND SPD       8  6  3  3  3  3  5  8  9  9  6  4  5  4  8  9 10  9  6  6  5  4
CLOUDS        SC FW SC SC SC B1 SC SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 OV
CLOUDS(%)     26 12 27 41 46 52 46 41 49 57 66 70 72 73 67 61 61 60 70 80 84 88
POP 12HR                     10          30          30          30          40
QPF 12HR                      0        0.07        0.46        0.09        0.22
RAIN SHWRS     C                    C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
TSTMS          C                    C  C  C  C  C  C  C  C  C  C  C  C  C  C  C
LAL                     1     1     1     3     3     3     3     3     3     3
HAINES                  6     4     5     5     6     6     4     3     3     3
MIX HGT              4600   500  3400  5000  2800   400  4500  6700  3000   300
T WIND DIR             SE     S     S    SE    SE     S     S     S     S    SE
T WIND SPD             16    13    11    17    16    13    17    20    23    11
SMOKE DISP             GD    PR    PR    GD    FR    PR    GD    VG    GD    PR


DATE           05/30 TUE 05/31/16 WED 06/01/16 THU 06/02/16 FRI 06/03/16
UTC 6HRLY     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
CDT 6HRLY     13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19

MAX/MIN            83      70      83      67      82      65      81      63      81
TEMP          80 81 73 70 80 81 71 67 79 80 69 65 78 79 67 63 78 79
DEWPT         69 68 68 68 69 68 68 67 68 67 67 65 66 64 62 61 62 62
MIN/MAX RH
RH            69 64 85 94 69 65 88 99 69 65 92 99 67 61 85 92 58 56
PWIND DIR           S      SE       S      SE      SE       E      NE      NE      NE
WIND CHAR         <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1
POP 12HR           40      40      50      50      50      50      50      30      30

$$

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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