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

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379
FOUS54 KSJT 291955
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
255 PM CDT TUE JUL 29 2014<br>

TXZ128-301015-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
255 PM CDT TUE JUL 29 2014

DATE           07/29/14      WED 07/30/14            THU 07/31/14            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                      73          96          70          86          66
TEMP          90 89 82 78 75 73 86 94 96 95 83 77 73 70 79 85 86 85 76 72 68 66
DEWPT         63 63 62 62 62 64 63 61 57 56 59 62 63 64 64 63 63 62 63 63 63 62
MAX/MIN RH                   73          26          81          45          87
RH            38 42 52 58 64 73 47 34 27 27 44 60 71 81 60 49 46 46 63 74 84 87
WIND DIR      SE SE SE SE  S  S  S  S  S  S  S  S  W  N  N  N NE NE NE NE NE NE
WIND SPD       8 10  8  9 10 10 14 15 15 10  8  8  9  9 10 11 11 10  8  5  3  3
CLOUDS        B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B1
CLOUDS(%)     68 71 71 72 72 73 67 61 60 60 61 59 67 75 79 83 73 63 62 62 63 64
POP 12HR                     10          20          20          20          10
QPF 12HR                      0        0.02        0.02        0.02           0
RAIN SHWRS    SC             IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS         SC             IS IS IS IS IS IS IS IS IS IS IS IS
LAL            2  2  2  2  2  1  1  1  1  2  2  2  2  2  2  2  2  1  1  1  1  1
HAINES         5  5  5  5  5  5  5  5  6  6  6  6  5  4  3  3  3
MIX HGT        6  5 <1 <1 <1 <1  2  5  9  6 <1 <1 <1 <1  2  3  5  5  3 <1 <1 <1
T WIND DIR    SE SE SE SE  S  S  S  S SW  S  S SW NW  N  N  N NE NE NE NE NE NE
T WIND SPD     8 10  9  9 10 13 25 23 17 17 11  9  5 14 17 18 17 13  9  5  5  4
SMOKE DISP    FR FR PR PR PR PR FR GD VG GD PR PR PR PR PR FR GD GD PR PR PR PR


DATE           08/01  SAT 08/02/14  SUN 08/03/14  MON 08/04/14  TUE 08/05/14
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          87      68    89      68    90      69    92      71    92
TEMP          85 86   73 68 87 88   74 68 88 89   75 69 90 91   77 71 90 91
DEWPT         61 56   60 63 61 55   59 60 57 56   57 59 55 55   58 61 59 55
MIN/MAX RH       36      84    33      76    32      72    29      71    30
RH            45 36   64 84 42 33   59 76 35 33   55 72 31 30   53 71 35 30
PWIND DIR        NE       E     E       E     E       E    SE      SE     S
WIND CHAR       <15     <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    B1 B1   B1 B1 B1 SC   SC SC SC SC   SC SC SC SC   SC SC SC SC
POP 12HR         10      10    10      10    10       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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