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

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857
FOUS54 KSJT 072051
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
251 PM CST WED DEC 7 2016<br>

TXZ128-081015-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
251 PM CST WED DEC 7 2016

DATE           12/07/16      THU 12/08/16            FRI 12/09/16            SAT
UTC 3HRLY     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3HRLY     15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06

MIN/MAX                      26          34          21          43          33
TEMP          46 45 41 33 32 27 28 31 34 31 25 24 22 21 25 38 43 39 36 35 34 33
DEWPT         41 41 36 31 25 22 20 16 15 14 15 14 13 12  9 11 17 21 22 23 25 27
MAX/MIN RH                   89          43          71          34          96
RH            83 86 82 92 75 81 71 53 45 49 65 65 68 68 50 32 35 48 56 61 69 78
WIND DIR      SW  N  N  N  N  N  N  N  N NE NE NE  E  E SE  S  S  S  S  S  S  S
WIND SPD       3  6 10 12 16 13 14 13 11  8  4  3  3  3  6  9 10  8  8 10 10 10
CLOUDS        B2 B2 B2 OV OV OV B2 B2 B2 SC SC FW FW FW SC SC FW FW FW FW FW FW
CLOUDS(%)     78 80 84 89 89 92 85 84 72 45 29 18 21 23 28 33 24 14 14 13 17 21
POP 12HR                     20          20           0           0           0
QPF 12HR                   0.03        0.03           0           0           0
FRZG DRZL                     S  S
FRZG RAIN               S  S
SLEET                   S  S  S  S
SNOW                    S  S  S  S
LAL                     1     1     1     1     1     1     1     1     1     1
HAINES                  3     2     3     4     4     4     4     3     2     2
MIX HGT              2000  2000  2700  3300   400   800  2200  2200   300   600
T WIND DIR             NE    NE    NE    NE    NE     E    SE     S     S     S
T WIND SPD             18    25    25    18     8     5     9    11    11    12
SMOKE DISP             FR    FR    FR    FR    PR    PR    PR    PR    PR    PR


DATE           12/10/16  SUN 12/11/16  MON 12/12/16  TUE 12/13/16  WED 12/14/16
UTC 6HRLY     18 00 06   12 18 00 06   12 18 00 06   12 18 00 06   12 18 00
CST 6HRLY     12 18 00   06 12 18 00   06 12 18 00   06 12 18 00   06 12 18

MAX/MIN          57      43    59      34    54      39    61      36    50
TEMP          51 52 46   43 55 49 39   34 49 48 42   39 56 51 41   36 47 44
DEWPT         38 45 44   41 37 36 32   27 29 36 37   38 45 43 34   32 30 32
MIN/MAX RH       53      96    42      75    37      92    45      82    41
RH            61 77 93   93 51 61 76   75 46 63 82   96 66 74 76   85 51 62
PWIND DIR         S      SW    NW      NE    SE       S     S      NE    NW
WIND CHAR       <15     <15   <15     <15   <15     <15   <15     <15   <15
AVG CLOUDS    FW SC SC   SC FW FW FW   FW FW FW FW   FW FW FW FW   SC SC FW
POP 12HR          0       0     0       0     0       0     5       5     0

$$

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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