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

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673
FOUS54 KSJT 241955
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
255 PM CDT SUN JUL 24 2016<br>

TXZ128-251015-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
255 PM CDT SUN JUL 24 2016

DATE           07/24/16      MON 07/25/16            TUE 07/26/16            WED
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                      77          98          74          93          74
TEMP         100 97 87 82 79 77 86 94 97 95 84 79 76 74 83 90 93 91 82 78 76 74
DEWPT         63 61 62 63 65 67 69 66 65 65 66 68 69 69 69 68 66 67 69 68 68 69
MAX/MIN RH                   70          34          84          42          85
RH            30 31 44 53 61 70 56 40 34 38 55 69 79 84 64 49 42 45 65 72 77 85
WIND DIR      SE SE SE SE  S  S SW  E  E  E SE SE  S SE  S  E  E SE SE SE  S  S
WIND SPD       9  9  5  5  5  4  6  3  6 10  6  5  3  3  3  5  6  8  4  3  3  3
CLOUDS        FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 SC SC SC
CLOUDS(%)     24 30 29 28 28 28 28 33 33 58 58 52 52 53 53 66 66 75 75 44 44 47
POP 12HR                      0          20          20          30          20
QPF 12HR                      0           0        0.13        0.20           0
RAIN SHWRS                    S  S  S  S  S  S  S  S  C  C  C  C  S  S  S  S  C
TSTMS                         S  S  S  S  S  S  S  S  C  C  C  C  S  S  S  S  C
LAL                     1     1     2     2     2     2     3     3     1     1
HAINES                  5     5     5     5     5     5     5     5     5     5
MIX HGT              5200   400  8700 10500  6300   800  8200  8100  4700   200
T WIND DIR             SE     S     S     E    SE     S     S     E    SE     S
T WIND SPD              8     8     8     9    11    10     5     6     4     2
SMOKE DISP             FR    PR    FR    GD    GD    PR    FR    FR    PR    PR


DATE           07/27 THU 07/28/16 FRI 07/29/16 SAT 07/30/16 SUN 07/31/16
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            93      74      94      74      94      75      96      75      96
TEMP          90 91 78 74 91 92 78 74 91 92 79 75 93 94 80 75 93 93
DEWPT         68 66 68 68 67 65 65 67 67 63 64 67 66 64 65 68 67 64
MIN/MAX RH
RH            48 44 71 82 45 41 64 79 45 38 59 76 41 37 60 78 43 38
PWIND DIR           S       S       S       S       S       S       S       S       S
WIND CHAR         <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 SC SC B1 B1 SC SC SC SC SC SC SC B1 SC SC SC B1
POP 12HR           30      20      20      10      20      10      10       5      10

$$

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 DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
                                    RELATIVE TO DUE NORTH.
     EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
              27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
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...
       S..............SLIGHT CHANCE
       C..............CHANCE
       L..............LIKELY
       O..............OCCASIONAL
       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
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
DISPERSION..........................LDSI
MAX LVORI...........................LVORI
STA PRES (INCHES MERCURY)...........STATION PRESSURE
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
STABILITY (CAT).....................PASQUILL TURNER STABILITY
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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