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

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755
FOUS54 KSJT 241010
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
410 AM CST MON NOV 24 2014<br>

TXZ170-242245-
MASON RAWS-MASON TX
30.74N  99.19W ELEV. 1463 FT
410 AM CST MON NOV 24 2014

DATE             MON 11/24/14            TUE 11/25/14            WED 11/26/14
UTC 3HRLY     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
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                      60          32          61          34          69
TEMP             37 46 59 60 52 41 37 34 33 44 60 61 53 43 39 36 35 49 68 69 60
DEWPT            31 31 25 23 24 24 25 25 25 27 29 28 28 28 28 28 26 27 29 30 32
MIN/MAX RH                   24          76          28          73          23
RH               79 55 27 24 34 50 61 70 74 51 31 28 38 55 64 72 69 43 23 23 35
WIND DIR         NW NW  N NE  E  S  S SW  W  W  W  W NW  W SW  W SW  W  W  W  W
WIND SPD          4  4  4  1  2  3  3  3  3  4  7  9  7  3  4  5  8 10 10  8  3
CLOUDS           FW FW FW FW FW FW FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL
CLOUDS(%)         9  9  7  7 15 15 22 22 14 14 19 19  4  4  4  4  4  4  4  4  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  1  1  1  1  1  1  1  1  1  1  1
HAINES            4  4  4  4  4  4  4  5  5  5  5  5  5  4  4  5  4  4  4  4  4
MIX HGT          <1  3  6  6  2 <1 <1 <1 <1  4  9 10 <1 <1 <1 <1 <1  1  2  4 <1
T WIND DIR       NW  N  N  N  N  S  S SW  W  W  W NW NW  W SW  W SW  W  W  W NW
T WIND SPD        8 12 11  5  3  4  4  4  5  2  9 17  4  3  6  6  8 11 14 12  2
SMOKE DISP       PR PR FR PR PR PR PR PR PR PR GD EX PR PR PR PR PR PR PR FR PR


DATE               THU 11/27/14  FRI 11/28/14  SAT 11/29/14  SUN 11/30/14
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    69      42    69      47    70      47    69
TEMP          44   39 68 61 47   43 68 62 51   48 69 63 51   48 68 64
DEWPT         31   31 37 38 39   41 47 46 48   48 52 51 51   48 55 52
MAX/MIN RH         75    31      96    44     100    53     100    57
RH            60   73 32 43 74   94 47 56 88  100 55 64100  100 62 65
PWIND DIR          SW     S       S     S       S     S       S     S
WIND CHAR         <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    CL   CL CL CL CL   FW SC FW FW   FW SC FW FW   SC SC SC
POP 12HR            0     0       0     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 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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