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

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397
FOUS54 KSJT 102217
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
417 PM CST WED FEB 10 2016
TXZ170-111015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 417 PM CST WED FEB 10 2016 DATE 02/10/16 THU 02/11/16 FRI 02/12/16 SAT UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 MIN/MAX 40 81 39 76 43 TEMP 70 56 49 44 41 48 71 81 73 57 50 44 40 47 67 76 70 57 51 47 44 DEWPT 27 31 29 31 31 34 32 29 29 33 36 36 35 37 39 38 37 41 44 43 41 MAX/MIN RH 73 15 87 24 97 RH 20 38 47 60 67 57 24 15 19 40 59 72 81 70 36 25 29 54 76 85 90 WIND DIR SW SW SW SW SW SW SW W SW W W W W W SW S E E E E E WIND SPD 5 3 4 4 4 5 9 6 3 3 3 3 3 3 3 3 4 4 3 3 3 CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW CLOUDS(%) 0 0 0 0 0 0 0 0 2 1 1 3 4 3 1 1 1 4 7 14 22 POP 12HR 0 0 0 0 0 QPF 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 HAINES 5 6 6 6 6 5 5 5 4 4 MIX HGT 200 100 3100 7000 400 200 2100 4100 600 100 T WIND DIR SW SW SW W N NW NW SE E E T WIND SPD 5 9 11 10 5 5 2 2 5 3 SMOKE DISP PR PR FR GD PR PR PR PR PR PR DATE 02/13/16 SUN 02/14/16 MON 02/15/16 TUE 02/16/16 WED 02/17/16 UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 MAX/MIN 73 50 73 48 69 45 76 46 78 TEMP 66 69 56 50 67 68 54 49 64 64 51 45 68 70 54 47 70 73 DEWPT 46 44 47 49 51 49 50 48 41 34 33 36 36 32 36 37 35 38 MIN/MAX RH RH 48 40 72 96 57 51 86 96 44 32 50 70 31 24 50 68 27 28 PWIND DIR E S S SW N E SW SW SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW SC SC SC SC SC SC FW FW CL CL CL CL CL CL CL POP 12HR 0 5 10 5 5 0 5 0 0 $$ 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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