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

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165
FOUS54 KSJT 282042
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
342 PM CDT TUE JUN 28 2016<br>

TXZ170-291045-
MASON RAWS-MASON TX
30.74N  99.19W ELEV. 1463 FT
342 PM CDT TUE JUN 28 2016

DATE           06/28/16      WED 06/29/16            THU 06/30/16            FRI
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                      71          94          70          95          71
TEMP          93 91 81 76 73 71 82 90 94 91 80 75 72 70 82 90 95 92 81 76 73 71
DEWPT         67 67 69 70 70 70 70 67 65 64 67 69 70 69 70 66 64 64 66 69 70 70
MAX/MIN RH                   97          38          97          36          95
RH            43 45 67 82 90 97 67 47 39 41 64 82 93 97 66 45 36 40 60 77 90 95
WIND DIR      NE NE  E  E  N  N NE NE  E  E  E SE SE SE  S SE SE SE SE  S  S  S
WIND SPD       8  6  3  2  2  2  3  5  8  8  4  3  2  2  3  5  9 10  6  3  3  3
CLOUDS        B1 B1 SC B1 SC SC SC SC SC FW SC FW FW FW FW FW FW FW FW FW FW FW
CLOUDS(%)     60 65 49 52 46 44 43 33 30 22 30 13 14 15 12 10  9 13 11  8  7 12
POP 12HR                     20          10           5           0           0
QPF 12HR                   0.02           0           0           0           0
RAIN SHWRS     C  S  S
TSTMS          C  S  S
LAL                     2     1     1     1     1     1     1     1     1     1
HAINES                  4     3     4     5     5     3     3     5     5     5
MIX HGT              3800   300  8000  8800  5800   300  8300  9900  5300   300
T WIND DIR              S     W    SE     E    SE    SE    SE    SE    SE     S
T WIND SPD              5     3     3     8    11     3     8    13     8     6
SMOKE DISP             PR    PR    PR    GD    FR    PR    GD    GD    FR    PR


DATE           07/01 SAT 07/02/16 SUN 07/03/16 MON 07/04/16 TUE 07/05/16
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            95      72      97      74      97      75      98      74      98
TEMP          91 92 77 72 93 94 79 74 93 95 80 75 94 95 79 74 94 95
DEWPT         66 63 68 70 66 64 70 71 67 64 70 72 67 63 69 70 65 62
MIN/MAX RH
RH            44 38 74 93 42 37 74 90 43 36 72 90 41 35 72 87 39 34
PWIND DIR          SE       S       S       S       S       S       S       S       S
WIND CHAR         <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW SC FW FW FW SC FW FW FW SC FW FW FW SC FW
POP 12HR            0       5       5       5       5       5       5       5       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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