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

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FOUS54 KSJT 242015
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
311 PM CDT FRI OCT 24 2014
TXZ170-251015- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 311 PM CDT FRI OCT 24 2014 DATE 10/24/14 SAT 10/25/14 SUN 10/26/14 MON 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 57 86 59 86 59 TEMP 85 78 66 62 59 57 71 84 86 79 68 64 61 59 72 85 86 80 68 64 61 59 DEWPT 58 56 57 57 57 56 58 57 56 54 54 54 55 55 54 53 52 51 52 53 55 56 MAX/MIN RH 99 36 87 31 91 RH 40 47 73 86 94 96 63 40 36 42 62 71 82 87 53 34 31 37 58 69 82 90 WIND DIR S S S SW SW SW SW SW S SE SE S S S S S SE SE S S S S WIND SPD 3 3 3 3 3 3 7 7 5 4 5 2 2 2 5 10 10 5 3 3 3 5 CLOUDS FW FW FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL CL FW SC B1 B2 CLOUDS(%) 10 9 12 13 11 9 8 7 5 3 5 5 5 5 5 5 5 5 18 30 51 72 POP 12HR 0 0 0 0 0 QPF 12HR 0 0 0 0 0 OBVIS PF PF LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 4 3 3 4 4 5 4 4 4 4 4 5 5 5 5 4 3 3 4 4 5 MIX HGT 6 3 1 <1 <1 <1 2 4 6 5 1 <1 <1 <1 2 4 6 5 1 <1 <1 <1 T WIND DIR S S S SW SW SW SW SW S S S S SW S SW S S S S S S S T WIND SPD 5 6 4 6 5 6 14 9 8 8 5 8 5 6 14 17 16 17 6 10 8 10 SMOKE DISP PR PR PR PR PR PR PR PR FR PR PR PR PR PR PR GD GD GD PR PR PR PR DATE 10/27 TUE 10/28/14 WED 10/29/14 THU 10/30/14 FRI 10/31/14 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 86 61 82 57 77 55 81 52 78 TEMP 84 80 65 61 80 75 61 57 76 71 58 55 79 74 57 52 76 71 DEWPT 57 55 57 60 60 57 56 55 55 55 55 55 54 49 48 44 44 43 MIN/MAX RH 36 97 46 93 47 100 35 77 30 RH 40 43 76 97 51 52 85 93 49 57 89100 42 42 73 74 32 37 PWIND DIR S S E NE NE SE S NE NE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC FW POP 12HR 5 10 10 20 20 10 10 10 5 RAIN SHWRS IS IS IS IS TSTMS 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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