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

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435
FOUS54 KSJT 272006
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
306 PM CDT SAT AUG 27 2016<br>

TXZ128-281045-
HAMBY RAWS-CALLAHAN TX
32.50N  99.62W ELEV. 1900 FT
306 PM CDT SAT AUG 27 2016

DATE           08/27/16      SUN 08/28/16            MON 08/29/16            TUE
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                      70          89          69          89          70
TEMP          90 87 80 76 73 70 77 86 88 86 78 74 71 69 77 86 88 86 79 75 72 70
DEWPT         65 67 68 68 68 68 69 68 64 64 66 67 67 67 68 67 65 65 67 67 68 67
MAX/MIN RH                   93          44          93          45          91
RH            44 51 68 77 85 93 76 54 46 49 67 79 86 93 75 52 47 50 67 77 87 91
WIND DIR      SE SE SE SE  S SE  S  E  E  E  E SE SE  E  E  E  E  E  E  E  E NE
WIND SPD       6  8  5  4  3  3  3  5  6  8  4  3  3  3  4  8  9  8  4  3  2  3
CLOUDS        B1 B2 B1 SC SC SC SC B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1
CLOUDS(%)     60 72 54 50 41 35 44 54 56 57 50 44 47 50 60 68 69 69 66 62 62 62
POP 12HR                     20          20          20          30          20
QPF 12HR                   0.01        0.02        0.02        0.06        0.02
RAIN SHWRS     S  S  S        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  S  S  S  C  C  C  C  S  S  S  S  C
LAL                     2     1     2     2     2     2     3     3     2     2
HAINES                  5     3     3     5     5     4     3     3     4     3
MIX HGT              5100   500  6700  8000  4700   400  6400  6600  3900   300
T WIND DIR             SE     S    SE     E    SE    SE     E     E    SE    SE
T WIND SPD              6     3     1     4     4     1     6     8     3     1
SMOKE DISP             FR    PR    FR    GD    FR    PR    GD    GD    PR    PR


DATE           08/30 WED 08/31/16 THU 09/01/16 FRI 09/02/16 SAT 09/03/16
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            90      70      89      71      90      72      92      72      93
TEMP          87 87 75 70 86 86 76 71 87 87 77 72 89 89 77 72 90 90
DEWPT         68 65 68 68 68 66 69 68 68 66 69 69 68 65 67 67 67 64
MIN/MAX RH
RH            53 49 79 93 55 51 79 90 53 51 76 89 50 45 70 84 47 42
PWIND DIR           E       E       E      SE      SE      SE       S       S       S
WIND CHAR         <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC FW FW FW
POP 12HR           30      20      20      10      20      10      10       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 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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