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

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072
FOUS54 KSJT 251049
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
449 AM CST SUN JAN 25 2015
TXZ170-252215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 449 AM CST SUN JAN 25 2015 DATE SUN 01/25/15 MON 01/26/15 TUE 01/27/15 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CST 3HRLY 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 MAX/MIN 67 34 72 43 75 TEMP 33 41 61 67 61 46 40 37 34 43 65 72 66 53 49 46 43 51 69 75 69 DEWPT 30 34 31 32 32 31 31 30 30 34 36 36 36 37 37 37 36 37 38 39 39 MIN/MAX RH 27 93 27 77 27 RH 89 76 32 27 34 56 69 76 86 71 34 27 33 54 64 71 75 60 32 27 33 WIND DIR NW N N N NW NW NW NW NW W W W W W W W W W W SW S WIND SPD 2 3 10 11 5 4 5 4 3 3 5 4 3 4 5 5 4 3 3 3 3 CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC FW CLOUDS(%) 17 12 19 8 6 8 9 7 9 17 24 25 25 30 35 35 35 35 34 27 20 POP 12HR 0 0 0 0 5 QPF 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 5 5 5 5 5 4 4 3 4 4 4 4 4 4 4 5 5 5 5 5 5 MIX HGT <1 <1 3 5 3 <1 <1 <1 <1 <1 3 5 3 <1 <1 <1 <1 <1 3 5 4 T WIND DIR W NW N N NW NW W NW W W NW NW W W W W W W W SW S T WIND SPD 9 11 21 23 6 8 8 6 6 5 17 16 4 6 6 6 6 4 6 6 4 SMOKE DISP PR PR GD VG PR PR PR PR PR PR FR GD PR PR PR PR PR PR PR PR PR DATE WED 01/28/15 THU 01/29/15 FRI 01/30/15 SAT 01/31/15 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CST 6HRLY 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 MIN/MAX 45 75 49 67 42 54 40 51 TEMP 51 45 69 70 54 49 64 62 47 42 52 51 43 40 49 48 DEWPT 40 39 43 43 44 45 42 38 36 32 33 35 38 38 41 40 MAX/MIN RH 81 32 86 36 69 46 96 66 RH 66 79 39 38 69 86 45 40 65 67 48 53 81 92 74 73 PWIND DIR S SW SW N NE NE E E WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW SC SC SC B1 B2 B2 OV B2 OV OV OV POP 12HR 0 0 5 5 5 20 30 50 RAIN SHWRS IS IS SC SC SC SC $$ 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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