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

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708
FOUS54 KSJT 270856
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
356 AM CDT MON APR 27 2015<br>

TXZ128-272215-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
356 AM CDT MON APR 27 2015

DATE             MON 04/27/15            TUE 04/28/15            WED 04/29/15
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                      73          48          62          45          72
TEMP          59 56 64 71 73 69 57 51 49 48 55 60 62 59 51 47 46 45 58 68 72 68
DEWPT         51 52 52 50 51 51 50 49 47 46 46 46 46 45 44 43 42 41 42 43 43 42
MIN/MAX RH                   45          93          54          87          35
RH            75 86 64 48 45 52 78 93 92 93 72 60 56 60 77 86 86 86 55 40 35 39
WIND DIR      NE  N NW NW  N  N  N  N  N  N  N  N  N  N NW NW NW NW NW  N  N NE
WIND SPD      14  3  8  7  8 14 12 12 11 11 12 12 12 10  7  3  3  4  5  7  7  5
CLOUDS        B1 B1 B1 B1 B1 B2 B2 OV OV OV OV B2 B2 B1 SC SC FW FW FW FW FW FW
CLOUDS(%)     66 62 58 54 67 80 86 92 91 90 88 86 72 58 42 27 22 18 18 18 17 15
POP 12HR                     40          40          20           5           0
QPF 12HR                   0.12        0.30        0.05           0           0
RAIN SHWRS    SC SC SC SC SC SC SC SC SC IS IS IS IS
TSTMS         SC SC SC SC SC
LAL            3  3  3  3  3  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
HAINES         6  4  4  3  3  3  3  3  3  3  3  2  2  3  3  3  3  4  4  4  4  4
MIX HGT        4 <1  2  4  6  3  2  2  1 <1  2  3  5  5 <1 <1 <1 <1  2  5  7  6
T WIND DIR    SW  N NW NW NW  N  N  N  N  N  N  N  N  N  N  W  W  W  N  N  N  N
T WIND SPD    11 10 13 14 16 23 23 24 25 16 21 21 23 21  6  5  5  5 16 11  8  6
SMOKE DISP    PR PR PR FR GD GD FR PR PR PR PR GD GD VG PR PR PR PR PR FR FR PR


DATE          THU 04/30/15  FRI 05/01/15  SAT 05/02/15  SUN 05/03/15
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          49    77      52    81      58    83      60    83
TEMP          52 49 73 73   55 52 77 77   61 58 79 79   63 60 80 80
DEWPT         45 43 44 43   45 45 50 48   49 51 53 52   53 56 58 57
MAX/MIN RH       83    30      78    33      77    35      87    43
RH            77 80 35 34   70 78 39 36   65 77 40 39   70 87 47 45
PWIND DIR         E     E      SE     S       S     S       S     S
WIND CHAR       <15   <15     <15   <15     <15   <15     <15   15>
AVG CLOUDS    FW CL FW FW   FW CL CL CL   CL FW FW FW   FW FW FW SC
POP 12HR          0     0       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 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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