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

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FOUS54 KSJT 061012
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
412 AM CST TUE DEC 6 2016
TXZ170-062230- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 412 AM CST TUE DEC 6 2016 DATE TUE 12/06/16 WED 12/07/16 THU 12/08/16 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MAX/MIN 56 39 64 33 37 TEMP 39 43 50 56 54 50 46 43 39 47 56 62 60 54 47 41 34 34 35 37 35 DEWPT 39 41 43 42 43 41 40 39 39 42 47 49 49 46 44 36 31 25 22 19 20 MIN/MAX RH 59 100 58 89 48 RH 100 93 77 59 66 71 79 86100 83 72 62 67 74 89 82 89 69 59 48 54 WIND DIR W NW N N N NE E E SE S SW SW W N N N N N N N N WIND SPD 8 10 11 9 5 3 3 2 3 3 6 5 3 3 10 16 13 14 13 11 9 CLOUDS FW SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 OV B2 OV OV OV B2 B2 B2 CLOUDS(%) 18 45 65 67 64 64 60 64 65 68 62 66 68 88 83 96 93 90 86 80 70 POP 12HR 5 0 5 20 20 QPF 12HR 0 0 0 0.03 0 FRZG RAIN S S RAIN S S S S RAIN SHWRS S S S SNOW S S LAL 1 1 1 1 1 1 1 1 1 1 HAINES 5 5 5 5 5 5 5 3 3 4 MIX HGT 1900 2300 1800 500 1500 2000 1300 2300 2800 3100 T WIND DIR NW N NE SE SW SW W N N N T WIND SPD 20 16 8 2 5 9 4 26 25 19 SMOKE DISP PR PR PR PR PR PR PR GD FR FR DATE FRI 12/09/16 SAT 12/10/16 SUN 12/11/16 MON 12/12/16 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CST 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 MIN/MAX 23 43 31 56 45 63 41 62 TEMP 30 23 36 41 36 31 50 52 47 45 59 54 46 41 57 54 DEWPT 17 17 16 23 24 29 40 46 47 45 46 45 42 41 40 43 MAX/MIN RH 77 39 100 61 100 54 100 48 RH 58 77 43 48 61 92 68 80100 100 62 71 86 100 53 66 PWIND DIR NE E S S S NW NW N WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 SC FW FW FW FW SC B1 SC SC SC FW FW SC SC FW POP 12HR 5 0 0 5 5 5 0 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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