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

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509
FOUS54 KSJT 210805
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
305 AM CDT TUE OCT 21 2014<br>

TXZ128-212245-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
305 AM CDT TUE OCT 21 2014

DATE             TUE 10/21/14            WED 10/22/14            THU 10/23/14
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                      79          57          79          58          81
TEMP          59 57 65 74 78 74 66 62 59 57 65 74 78 74 66 63 60 58 67 76 80 76
DEWPT         55 55 55 55 55 54 54 53 52 50 51 51 51 51 52 54 54 55 56 56 56 55
MIN/MAX RH                   42          80          38          89          42
RH            87 93 70 51 45 50 67 73 79 79 62 45 39 44 61 72 80 89 68 50 44 48
WIND DIR       S  S SE SE SE SE SE SE  S  S  S  S SE SE SE SE  S  S  S SW  S SE
WIND SPD       3  2  3  5  7  7  7  5  5  5  8  9  8  5  7  7  5  4  5  7  5  4
CLOUDS        B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC
CLOUDS(%)     52 52 51 51 55 59 58 57 63 67 71 74 76 78 78 78 75 72 64 55 47 39
POP 12HR                      5           5          20          20          20
QPF 12HR                      0           0           0        0.02        0.01
RAIN SHWRS                               IS IS IS IS IS IS IS IS IS IS IS IS
TSTMS                                    IS IS IS IS IS IS IS IS IS IS IS IS
LAL            1  1  1  1  1  1  1  1  1  2  2  2  2  2  2  2  2  2  2  2  2  1
HAINES         3  3  3  3  4  4  4  4  4  3  3  3  4  5  4  5  5  4  3  3  4  4
MIX HGT       <1 <1  2  6  7 <1 <1 <1 <1 <1  1  6  7 <1 <1 <1 <1 <1  3  7  8 <1
T WIND DIR     S  S SW SE SE SE SE  S  S  S  S  S  S  S  S  S  S  S SW SW SW  S
T WIND SPD     6  5  8  6 10 10  8  8  6  5 11  9 12  5  5  6  5 14 17 10  9  6
SMOKE DISP    PR PR PR PR FR PR PR PR PR PR PR FR GD PR PR PR PR PR PR PR FR PR


DATE          FRI 10/24/14  SAT 10/25/14  SUN 10/26/14  MON 10/27/14
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          59    84      55    84      57    85      57    82
TEMP          64 59 79 78   62 55 78 78   64 57 79 79   64 57 77 76
DEWPT         55 55 56 54   53 54 55 52   51 51 51 50   51 51 50 47
MAX/MIN RH       88    37      96    34      81    30      80    31
RH            72 88 46 43   72 96 45 40   64 81 38 36   63 80 39 35
PWIND DIR         S    SW       S    SW       S     S       S    SW
WIND CHAR       <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    SC FW FW FW   FW FW FW FW   FW FW FW FW   FW FW FW FW
POP 12HR         10     5       0     0       0     0       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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