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

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563
FOUS54 KSJT 291957
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
257 PM CDT FRI AUG 29 2014<br>

TXZ128-301015-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
257 PM CDT FRI AUG 29 2014

DATE           08/29/14      SAT 08/30/14            SUN 08/31/14            MON
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                      72          95          73          95          75
TEMP          92 90 81 77 75 72 83 92 94 92 83 79 76 73 83 92 94 93 84 80 78 75
DEWPT         65 63 64 65 66 67 67 67 64 62 63 64 66 67 68 67 65 62 63 65 66 68
MAX/MIN RH                   84          35          81          36          79
RH            41 41 57 68 75 84 60 44 37 37 52 61 71 81 61 44 39 36 49 60 67 79
WIND DIR       S SE SE  S  S  S SW SW  S SE SE  S  S  S  S  S  S  S  S  S  S  S
WIND SPD       8  8  8  8  5  3  3  3  5  8  8  8  7  4 10 11 11 14 14 12 11 11
CLOUDS        B1 B1 B1 SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW
CLOUDS(%)     62 61 54 47 44 42 35 28 31 33 31 28 22 16 16 17 16 15 20 25 23 21
POP 12HR                     30          10           5           5           5
QPF 12HR                   0.04           0           0           0           0
RAIN SHWRS    SC SC SC SC SC
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         4  4  5  4  4  5  5  4  5  5  5  4  3  3  3  4  5
MIX HGT       10  6 <1 <1 <1 <1  4  7 10  5 <1 <1 <1 <1  3  6  9  5 <1 <1 <1 <1
T WIND DIR     S  S SE SE  S  S SW NE  E SE SE  S  S  S  S  S  S  S SE  S  S  S
T WIND SPD     4  9  4  5 13  5 10  6  5  8 13  6 18 17 17 12 12 18  9 29 27 19
SMOKE DISP    PR FR PR PR PR PR PR FR FR PR PR PR PR PR FR GD GD GD PR PR PR PR


DATE           09/01  TUE 09/02/14  WED 09/03/14  THU 09/04/14  FRI 09/05/14
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          96      74    95      74    95      72    94      70    94
TEMP          93 93   80 74 92 92   79 74 92 92   78 72 91 91   76 70 91 91
DEWPT         64 60   62 69 63 60   64 67 63 59   64 66 63 60   62 65 62 56
MIN/MAX RH       33      84    33      79    31      81    34      84    30
RH            38 33   55 84 38 34   60 79 38 33   62 81 40 36   62 84 38 31
PWIND DIR         S       S     S       S     S       S     S       S     S
WIND CHAR       <15     <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    FW FW   FW FW FW FW   FW FW FW FW   FW FW FW SC   SC SC SC SC
POP 12HR          5       5     5       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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