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

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536
FOUS54 KSJT 242001
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
301 PM CDT SAT SEP 24 2016
TXZ170-251015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 301 PM CDT SAT SEP 24 2016 DATE 09/24/16 SUN 09/25/16 MON 09/26/16 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 71 84 66 73 57 TEMP 90 86 78 75 73 71 76 82 84 80 73 70 68 66 69 72 73 70 63 60 58 57 DEWPT 68 70 71 70 70 70 71 69 69 69 69 68 67 65 63 62 60 58 57 56 55 54 MAX/MIN RH 97 61 99 62 90 RH 50 60 79 84 90 97 85 65 61 69 87 93 97 95 81 71 64 67 82 87 90 90 WIND DIR S SE SE SE SE SE SE SE E E NE NE N N N NE N N N N N N WIND SPD 10 8 5 3 4 3 4 5 8 6 6 5 6 9 9 10 10 10 8 5 5 6 CLOUDS B1 B2 B2 B2 B2 OV OV OV B2 OV OV OV OV OV OV OV OV OV OV B2 OV B2 CLOUDS(%) 69 70 76 82 86 91 93 92 87 95 92 99 98 98 99 97 95 90 92 83 90 86 POP 12HR 50 70 80 60 40 QPF 12HR 0.32 0.77 0.72 0.50 0.09 RAIN SHWRS C C C C C L L L L D D D D L L L L C C C C S TSTMS C C C C C L L L L D D D D L L L L C C C C S LAL 3 3 4 4 5 5 4 4 3 3 HAINES 3 3 3 3 3 3 3 3 3 3 MIX HGT 3300 700 5800 5500 1600 1100 2100 2200 1900 1000 T WIND DIR SE SE SE SE E NE NE NE NE N T WIND SPD 9 4 13 14 11 17 20 20 16 10 SMOKE DISP FR PR GD GD PR PR PR PR PR PR DATE 09/27 WED 09/28/16 THU 09/29/16 FRI 09/30/16 SAT 10/01/16 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 74 58 83 61 84 61 86 60 86 TEMP 71 71 61 58 79 79 65 61 80 79 66 61 82 78 65 60 82 79 DEWPT 52 52 53 53 55 58 57 56 56 55 56 54 56 55 55 55 60 60 MIN/MAX RH RH 52 52 76 85 45 49 76 86 44 44 69 78 41 45 70 84 47 52 PWIND DIR N N NE E E E SE SE SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B2 B2 B1 SC SC SC SC SC FW FW FW FW FW FW FW SC POP 12HR 20 5 5 5 5 5 5 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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