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

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124
FOUS54 KSJT 220830
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
330 AM CDT WED OCT 22 2014
TXZ170-222215- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 330 AM CDT WED OCT 22 2014 DATE WED 10/22/14 THU 10/23/14 FRI 10/24/14 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 82 59 81 56 84 TEMP 58 55 67 78 82 77 67 63 61 59 69 78 81 75 64 61 58 56 68 80 84 78 DEWPT 52 49 50 50 51 52 53 55 55 56 57 59 58 57 57 57 56 55 56 57 56 55 MIN/MAX RH 34 90 47 96 38 RH 82 82 55 37 34 42 62 75 81 90 67 53 47 54 77 88 92 96 64 45 38 46 WIND DIR E SE SE SE SE E SE SE SE SE S S SE SE SE S SW SW SW SW S SE WIND SPD 2 2 4 7 5 4 3 3 3 2 2 3 3 4 3 3 2 2 2 3 3 3 CLOUDS B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC FW FW FW FW FW FW CLOUDS(%) 55 55 57 60 63 67 69 71 65 58 57 55 46 37 34 30 25 19 19 20 17 14 POP 12HR 10 20 10 10 5 QPF 12HR 0 0.02 0 0 0 RAIN SHWRS IS IS IS IS IS TSTMS IS IS IS IS LAL 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 5 5 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 MIX HGT <1 <1 2 4 4 4 4 3 2 <1 2 5 5 6 5 4 2 <1 3 5 6 7 T WIND DIR SE SE SE SE SE SE SE S S S S S S S S S SW SW SW S S S T WIND SPD 3 12 11 10 11 13 14 14 12 9 5 4 4 6 10 12 11 8 5 4 3 4 SMOKE DISP PR PR PR PR FR FR FR FR PR PR PR PR PR PR FR FR PR PR PR PR PR PR DATE SAT 10/25/14 SUN 10/26/14 MON 10/27/14 TUE 10/28/14 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 57 86 57 85 58 83 60 82 TEMP 62 57 82 80 62 57 81 79 63 58 80 78 64 60 79 76 DEWPT 56 55 56 54 55 54 54 51 54 58 57 57 59 58 56 55 MAX/MIN RH 94 35 90 32 100 41 92 40 RH 81 94 41 42 76 90 39 38 71100 46 49 83 92 45 49 PWIND DIR S S S S S S S SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC POP 12HR 0 0 0 0 0 5 10 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 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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