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

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748
FOUS54 KSJT 020854
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
354 AM CDT TUE SEP 2 2014<br>

TXZ128-022215-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
354 AM CDT TUE SEP 2 2014

DATE             TUE 09/02/14            WED 09/03/14            THU 09/04/14
UTC 3HRLY     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
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                     100          76          97          74          95
TEMP          78 75 87 97100 97 86 83 79 76 86 95 97 94 84 81 77 74 84 93 95 92
DEWPT         66 68 70 68 66 63 67 68 68 68 68 67 64 63 63 65 66 67 66 65 63 62
MIN/MAX RH                   32          76          34          79          35
RH            67 79 58 39 33 33 53 61 69 76 56 40 34 36 49 59 69 79 56 40 36 37
WIND DIR       S  S  S  S  S SE SE  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S
WIND SPD      12 10 14 12 11 10 10 11 11 10 14 14 12 14 10 12 10 10 11 14 12 10
CLOUDS        FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC FW FW SC SC SC SC
CLOUDS(%)     22 23 22 19 19 19 19 19 21 23 27 30 32 33 30 26 25 24 28 31 31 30
POP 12HR                      5           5           5           5           5
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  1
HAINES         4  4  4  3  4  5  5  3  3  4  4  3  5  5  3  4  4  4  4  3  5  4
MIX HGT       <1 <1  3  7  8  7 <1 <1 <1 <1  3  7  9  7 <1 <1 <1 <1  3  7  9  8
T WIND DIR     S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S  S SW  S  S  S
T WIND SPD     5 12 24 18 17 20  6  4 10 18 23 20 21 23 18 14 12 14 21 20 18 17
SMOKE DISP    PR PR GD VG VG VG PR PR PR PR GD VG EX VG PR PR PR PR GD VG VG VG


DATE          FRI 09/05/14  SAT 09/06/14  SUN 09/07/14  MON 09/08/14
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          73    96      72    94      71    93      71    94
TEMP          79 73 93 93   79 72 92 91   78 71 90 90   77 71 91 91
DEWPT         62 65 60 56   60 65 61 60   61 63 61 60   61 59 60 56
MAX/MIN RH       76    28      79    32      77    33      66    29
RH            56 76 34 30   53 79 37 36   57 77 38 37   58 66 36 31
PWIND DIR         S     S       S    SE      SE    SE      SE     S
WIND CHAR       <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    SC SC SC SC   FW SC SC SC   SC B1 B1 B1   B1 B1 B1 SC
POP 12HR          5    10      10    10      20    20      20    10
RAIN SHWRS                                IS IS IS IS   IS IS
TSTMS                                     IS IS IS IS   IS IS

$$

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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