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

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056
FOUS54 KSJT 180903
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
403 AM CDT SUN SEP 18 2016
TXZ170-182245- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 403 AM CDT SUN SEP 18 2016 DATE SUN 09/18/16 MON 09/19/16 TUE 09/20/16 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 94 72 95 71 93 TEMP 74 72 81 90 94 90 80 76 74 72 81 91 95 90 80 76 73 71 80 89 93 88 DEWPT 70 71 73 69 67 67 70 70 70 70 70 67 64 64 66 68 68 68 67 63 62 62 MIN/MAX RH 41 93 36 90 35 RH 87 95 77 50 41 47 70 81 87 93 69 45 36 42 62 76 84 90 66 42 35 42 WIND DIR S S SW S SE SE SE S S S S S SE SE SE SE S S S SE SE E WIND SPD 3 2 3 3 5 6 4 3 3 3 3 3 5 6 5 4 3 3 3 4 6 6 CLOUDS SC SC B1 B1 SC SC FW FW FW FW FW SC FW FW FW CL FW FW FW FW FW FW CLOUDS(%) 49 48 51 53 42 32 24 17 17 17 15 27 22 15 9 2 7 9 12 16 17 18 POP 12HR 20 5 10 5 5 QPF 12HR 0.01 0 0 0 0 RAIN SHWRS S S S S S TSTMS S S S S S LAL 2 2 1 1 1 1 1 1 1 1 HAINES 4 5 5 5 5 5 5 6 5 5 MIX HGT 6500 8300 4200 200 9900 10800 4800 200 8300 9300 T WIND DIR S SE S SW S SE SE SW S E T WIND SPD 6 6 5 4 9 6 8 4 8 12 SMOKE DISP PR FR PR PR FR GD FR PR GD VG DATE WED 09/21/16 THU 09/22/16 FRI 09/23/16 SAT 09/24/16 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 69 92 67 91 68 90 69 88 TEMP 74 69 88 87 72 67 87 86 73 68 86 86 73 69 85 84 DEWPT 66 67 63 60 64 64 61 58 64 67 65 64 68 68 67 65 MAX/MIN RH RH 78 95 44 40 76 91 41 39 72 97 51 50 84 97 55 53 PWIND DIR SE SE SE S SE S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC SC B1 B1 POP 12HR 0 5 5 5 5 10 10 30 $$ 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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