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

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449
FOUS54 KSJT 221411 AAA
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
911 AM CDT TUE JUL 22 2014<br>

TXZ170-222215-
MASON RAWS-MASON TX
30.74N  99.19W ELEV. 1463 FT
911 AM CDT TUE JUL 22 2014

DATE             TUE 07/22/14            WED 07/23/14            THU 07/24/14
UTC 3HRLY     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
CDT 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                      98          74          98          72          98
TEMP                83 94 98 94 86 78 76 74 83 94 98 94 85 77 75 72 82 94 98 94
DEWPT               72 67 63 61 63 65 66 67 67 64 63 58 61 65 67 68 66 63 62 61
MIN/MAX RH                   32          79          30          86          31
RH                  69 42 33 34 46 64 71 79 59 37 32 30 45 68 77 86 58 36 31 34
WIND DIR             E SE SE  E  E NE  N NW NW NE NE  E  E SE  S  S SE  E  E  E
WIND SPD             3  4  5  5  3  2  2  3  3  5  8  9  5  3  3  2  3  3  5  7
CLOUDS              SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC FW FW
CLOUDS(%)           29 27 25 23 23 23 23 22 26 28 31 34 33 32 32 32 29 26 25 23
POP 12HR                      0           0           5           5          10
QPF 12HR                      0           0           0           0           0
LAL                  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
HAINES               3  3  4  5  5  5  4  4  4  5  5  5  5  5  3  3  3  4  5
MIX HGT              2  7  9  8 <1 <1 <1 <1  4  7  8  8  4 <1 <1 <1  4  8  8  8
T WIND DIR           E  E  E  E  E  S SW  W NW NE NE  E  E SE  S SW SE  E  E SE
T WIND SPD           5  9  9 11  8  4  5  5  6  9 12 16  6  5  5  3  4 10 16 13
SMOKE DISP          PR FR GD GD PR PR PR PR PR FR GD VG PR PR PR PR PR GD VG VG


DATE          FRI 07/25/14  SAT 07/26/14  SUN 07/27/14  MON 07/28/14
UTC 6HRLY     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00
CDT 6HRLY     01 07 13 19   01 07 13 19   01 07 13 19   01 07 13 19

MIN/MAX          73    99      73   100      73    99      74    99
TEMP          78 73 95 95   78 73 96 96   78 73 95 95   78 74 95 95
DEWPT         65 65 63 60   63 67 62 60   65 66 59 59   63 68 62 56
MAX/MIN RH       76    30      81    28      79    27      83    27
RH            65 76 36 31   60 81 34 30   65 79 31 30   59 83 34 28
PWIND DIR        SE     S       S     S       S     S       S    SE
WIND CHAR       <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    FW SC SC SC   FW FW FW FW   FW SC SC SC   SC SC SC SC
POP 12HR         10     5       5     0       0     5       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 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...
       IS.............ISOLATED
       SC.............SCATTERED
       NM.............NUMEROUS
       O..............OCCASIONAL
       S..............SLIGHT CHANCE
       C..............CHANCE
       L..............LIKELY
       WD.............WIDESPREAD
       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
HAINES(CAT).........................HAINES INDEX
10K WIND DIR(8 POINT COMPASS).......10000 FOOT WIND DIRECTION
10K WIND SPD(MPH)...................10000 FOOT WIND SPEED
MIX HGT(THOUSANDS OF FT AGL)........MIXING HEIGHT
     EXAMPLE: 6 = 6000 FEET; 12 = 12000 FEET; <1 = LESS THAN 1000 FEET
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISP(CAT(KT-FT))...................SMOKE DISPERSION CATEGORY
     EXAMPLE: PR = POOR; FR = FAIR; GD = GOOD; VG = VERY GOOD; EX = EXCELLENT
FOSBERG.............................FOSBERG FIRE WEATHER INDEX
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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