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

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537
FOUS54 KSJT 312032
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
232 PM CST SAT JAN 31 2015<br>

TXZ128-011015-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
232 PM CST SAT JAN 31 2015

DATE           01/31/15      SUN 02/01/15            MON 02/02/15            TUE
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3HRLY     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

MIN/MAX                      49          51          24          50          36
TEMP          50 50 49 49 49 49 49 51 51 46 35 32 27 26 29 44 50 47 42 40 38 37
DEWPT         46 44 43 41 39 38 36 34 33 31 29 24 22 19 21 20 23 25 26 27 28 28
MAX/MIN RH                   86          48          84          34          75
RH            86 80 80 74 68 66 61 52 50 55 79 72 79 73 72 38 34 42 53 59 67 70
WIND DIR      SE  S  S  S SW SW  N  N  N  N  N  N  N NE  E  S  S  S  S  S  S  S
WIND SPD      11  9  8  7  5  8 11 17 19 15 10  8  5  3  3  3  7  8  9 10 10  9
CLOUDS        OV OV OV OV OV B2 B2 B2 B1 SC SC FW FW FW FW FW FW FW FW SC SC FW
CLOUDS(%)    100 96 96 92 92 86 81 76 62 46 35 23 19 14 15 15 18 20 20 27 27 15
POP 12HR                     40          10           5           5           5
QPF 12HR                   0.03           0           0           0           0
RAIN           D
RAIN SHWRS       SC SC SC SC
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
HAINES         3  3  3  3  4  4  2  2  2  4  4  3  3  3  2  2  3  4  3  3  4
MIX HGT        2  1 <1 <1 <1 <1  1  3  4  4  1 <1 <1 <1  1  2  2  2 <1 <1 <1 <1
T WIND DIR     S  S  S SW SW SW  W  N  N  N  N NE NE NE NE  E  S  S  S  S  S  S
T WIND SPD    31 11 11  5  4  9 12 24 24 23 18 14 10  8  8  4  9 14  8  9  9  8
SMOKE DISP    FR PR PR PR PR PR PR FR GD GD PR PR PR PR PR PR PR PR PR PR PR PR


DATE           02/03/15  WED 02/04/15  THU 02/05/15  FRI 02/06/15  SAT 02/07/15
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6HRLY     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

MAX/MIN          63      43    64      33    49      30    59      40    68
TEMP          57 59 49   45 59 58 42   36 45 45 35   32 52 55 45   42 62 64
DEWPT         35 39 43   42 45 41 34   26 24 28 29   28 36 37 38   38 41 41
MIN/MAX RH       39     100    45      82    39     100    42      96    37
RH            43 47 80   89 60 53 73   68 43 51 76   86 54 51 75   87 46 43
PWIND DIR        SW       S     S       N     N       E     S       S    SW
WIND CHAR       <15     <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    FW SC SC   SC SC SC B1   B1 SC SC FW   FW FW FW FW   FW FW FW
POP 12HR          5      10     5      10     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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