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

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278
FOUS54 KSJT 030851
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
351 AM CDT TUE MAY 3 2016<br>

TXZ128-032230-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
351 AM CDT TUE MAY 3 2016

DATE             TUE 05/03/16            WED 05/04/16            THU 05/05/16
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                      75          52          81          54          82
TEMP          47 46 59 69 74 72 62 57 54 52 65 75 80 77 65 60 56 54 66 76 81 79
DEWPT         44 43 50 47 47 47 50 51 49 47 52 47 45 46 48 48 47 46 52 51 48 50
MIN/MAX RH                   37          87          28          74          32
RH            89 89 71 45 38 41 66 80 84 84 64 37 29 33 54 64 72 74 61 42 32 36
WIND DIR      SE  S SW  S SW  N  E  S SW  W  W NW  N  N SE SE  S  S  S  S  S SE
WIND SPD       5  3  3  3  3  3  4  3  3  4  8  8  6  5  3  3  4  3  3  4  5  6
CLOUDS        FW CL FW FW FW B1 B1 SC FW CL CL CL CL CL CL CL CL CL CL CL CL FW
CLOUDS(%)      8  4 10  9 19 54 61 28 10  4  2  1  1  2  1  0  0  0  2  4  4  8
POP 12HR                      5          20           0           0           0
QPF 12HR                      0        0.02           0           0           0
RAIN SHWRS                    S  S
TSTMS                         S  S
LAL                     1     1     2     1     1     1     1     1     1     1
HAINES                  4     6     6     6     5     6     6     6     6     6
MIX HGT              6600 10100  8400   200  7100  7100  5900   200  7000  7400
T WIND DIR              W    NW    SW    SW    NW     N     E    SE     S     S
T WIND SPD              0     1     3     3     8    10     4     1     0     1
SMOKE DISP             PR    PR    PR    PR    GD    GD    PR    PR    PR    PR


DATE          FRI 05/06/16 SAT 05/07/16 SUN 05/08/16 MON 05/09/16
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      61      82      62      83      60      83
TEMP          64 59 79 81 66 61 78 79 66 62 79 80 65 60 78 80
DEWPT         51 52 54 53 53 55 58 57 60 59 58 55 60 59 54 49
MAX/MIN RH
RH            64 78 42 38 64 80 50 47 81 90 48 42 84 96 45 35
PWIND DIR          SE       S       S       S       S       S       S      SW
WIND CHAR         <15     <15     15>     15>     15>     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW SC B1 B1 SC B1 B1 B1 B1 B1 SC
POP 12HR            0       0       5      20      30      30      40      20

$$

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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