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

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693
FOUS54 KSJT 280954
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
454 AM CDT SAT MAY 28 2016
TXZ170-282215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 454 AM CDT SAT MAY 28 2016 DATE SAT 05/28/16 SUN 05/29/16 MON 05/30/16 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 90 70 85 69 85 TEMP 67 77 85 90 87 78 74 71 70 77 82 85 83 76 72 70 69 76 82 85 83 DEWPT 67 70 69 67 66 71 71 70 69 70 69 69 68 71 69 69 68 69 69 69 68 MIN/MAX RH 47 97 58 99 59 RH 99 78 58 47 50 78 89 97 97 79 65 58 61 84 90 96 98 79 65 59 61 WIND DIR S S S SE SE SE SE SE SE SE SE SE SE SE S S SE S S S SE WIND SPD 3 6 9 8 8 8 6 4 5 8 9 10 9 8 6 6 5 9 9 10 9 CLOUDS B1 SC SC SC B1 B1 B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 CLOUDS(%) 51 44 38 50 62 67 73 77 82 71 61 65 73 76 70 82 80 70 78 67 69 POP 12HR 30 40 30 40 40 QPF 12HR 0.02 0.22 0.05 0.13 0.28 RAIN SHWRS C C C C C C C C C C C C C C C C C C C TSTMS C C C C C C C C C C C C C C C C C C C OBVIS F LAL 1 3 3 3 3 3 3 3 3 3 HAINES 6 6 6 6 4 4 4 4 6 6 MIX HGT 4500 9000 3800 1100 3000 5000 2600 1700 4000 5300 T WIND DIR S SE SE S E SE SE SE SE SW T WIND SPD 11 16 14 12 10 19 16 11 14 16 SMOKE DISP FR VG FR PR FR GD FR PR FR GD DATE TUE 05/31/16 WED 06/01/16 THU 06/02/16 FRI 06/03/16 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 70 85 67 83 64 80 60 81 TEMP 73 70 82 83 71 67 80 81 68 64 77 78 64 60 77 79 DEWPT 69 69 69 69 67 67 69 68 66 64 65 62 61 58 59 59 MAX/MIN RH RH 89 99 65 63 87100 68 64 93100 67 59 90 92 54 50 PWIND DIR SE S S SE E N N N WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B1 SC SC POP 12HR 30 50 50 60 50 30 20 10 $$ 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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