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

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348
FOUS54 KSJT 052100
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
300 PM CST THU MAR 5 2015
TXZ170-061115- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 300 PM CST THU MAR 5 2015 DATE 03/05/15 FRI 03/06/15 SAT 03/07/15 SUN 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 21 49 31 53 40 TEMP 39 36 24 23 21 21 31 41 48 42 36 33 32 33 40 51 52 50 44 41 41 42 DEWPT 19 19 19 19 19 18 19 19 20 22 23 24 24 25 26 26 28 29 30 32 34 36 MAX/MIN RH 92 31 79 37 80 RH 44 50 80 85 92 88 62 41 33 45 60 70 74 73 56 37 39 45 59 69 75 79 WIND DIR N N N N N N E SE E E SE SE SE SE SE SE SE SE SE SE SE SE WIND SPD 11 8 3 2 2 2 2 3 3 4 3 3 3 3 4 7 8 8 7 5 4 3 CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 CLOUDS(%) 12 19 18 16 16 16 18 19 21 23 29 35 47 59 62 65 67 70 76 82 84 86 POP 12HR 0 0 10 10 20 QPF 12HR 0 0 0 0 0.04 RAIN SHWRS IS IS IS IS SC LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 2 2 2 2 MIX HGT 2 3 2 1 <1 <1 1 2 3 3 2 1 <1 <1 2 3 4 4 4 3 2 <1 T WIND DIR NE NE NE E E E SE SE SE SE SE SE S S S S S S S S S S T WIND SPD 17 13 11 9 8 6 6 6 6 6 5 5 5 5 5 5 5 5 5 5 5 5 SMOKE DISP PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR PR DATE 03/08/15 MON 03/09/15 TUE 03/10/15 WED 03/11/15 THU 03/12/15 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 60 42 63 40 67 41 71 46 72 TEMP 57 57 46 43 61 59 46 41 65 62 47 42 68 66 50 49 70 67 DEWPT 44 47 45 43 46 44 41 38 43 41 41 38 44 43 45 42 47 46 MIN/MAX RH 59 100 50 92 41 92 37 89 39 RH 62 68 96 100 58 56 84 89 45 47 80 86 42 43 82 77 43 46 PWIND DIR S E NE E E SE S SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS OV B2 B2 B2 B2 B1 B1 SC SC SC SC SC FW FW FW FW SC FW POP 12HR 30 20 20 10 10 10 10 5 10 RAIN SHWRS SC SC IS IS IS IS $$ 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 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... IS.............ISOLATED SC.............SCATTERED NM.............NUMEROUS O..............OCCASIONAL S..............SLIGHT CHANCE C..............CHANCE L..............LIKELY WD.............WIDESPREAD 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 HAINES(CAT).........................HAINES INDEX 10K WIND DIR(8 POINT COMPASS).......10000 FOOT WIND DIRECTION 10K WIND SPD(MPH)...................10000 FOOT WIND SPEED MIX HGT(THOUSANDS OF FT AGL)........MIXING HEIGHT EXAMPLE: 6 = 6000 FEET; 12 = 12000 FEET; <1 = LESS THAN 1000 FEET T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION T WIND SPD(MPH).....................TRANSPORT WIND SPEED SMOKE DISP(CAT(KT-FT))...................SMOKE DISPERSION CATEGORY EXAMPLE: PR = POOR; FR = FAIR; GD = GOOD; VG = VERY GOOD; EX = EXCELLENT FOSBERG.............................FOSBERG FIRE WEATHER INDEX 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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