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

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364
FOUS54 KSJT 221955
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
155 PM CST SAT NOV 22 2014
TXZ170-231030- MASON RAWS-MASON TX 30.74N 99.19W ELEV. 1463 FT 155 PM CST SAT NOV 22 2014 DATE 11/22/14 SUN 11/23/14 MON 11/24/14 TUE 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 50 76 39 62 35 TEMP 70 63 55 52 51 51 61 75 76 63 49 43 41 40 49 61 62 52 42 38 36 36 DEWPT 60 58 55 52 51 47 44 37 33 37 37 35 32 29 29 29 29 29 29 29 28 28 MAX/MIN RH 100 21 73 28 75 RH 71 85100100100 87 53 25 21 38 64 72 71 64 46 29 28 40 59 69 72 72 WIND DIR S SW W W W W W W W NW NW N NW NW NW N N NE SE S W NW WIND SPD 9 3 3 3 5 7 10 18 18 10 8 4 5 5 5 5 3 1 2 3 3 3 CLOUDS B2 B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW CLOUDS(%) 71 55 51 40 29 18 18 7 7 11 11 9 9 8 8 8 8 16 16 17 17 19 POP 12HR 30 0 0 5 5 QPF 12HR 0.04 0 0 0 0 RAIN SHWRS O SC SC TSTMS O SC SC LAL 5 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 5 3 3 5 6 5 5 5 5 5 5 5 4 5 3 4 4 4 5 5 MIX HGT 3 <1 <1 <1 <1 <1 <1 1 3 <1 <1 <1 <1 <1 <1 5 5 4 <1 <1 <1 <1 T WIND DIR S SE SW S SW SW W W W W NW N NW NW W NW W W SE S NE N T WIND SPD 25 10 3 5 6 11 13 24 29 11 9 9 5 5 4 10 8 2 4 2 2 4 SMOKE DISP FR PR PR PR PR PR PR PR GD PR PR PR PR PR PR FR PR PR PR PR PR PR DATE 11/25/14 WED 11/26/14 THU 11/27/14 FRI 11/28/14 SAT 11/29/14 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 58 35 65 39 67 39 62 42 62 TEMP 57 50 38 36 64 56 42 40 66 57 42 40 61 55 44 43 61 58 DEWPT 28 28 26 23 28 31 31 31 37 38 38 38 43 43 42 41 48 46 MIN/MAX RH 31 64 25 73 33 96 51 95 58 RH 32 42 62 59 25 39 65 70 34 50 86 92 52 65 92 92 61 63 PWIND DIR NW W SW SW S S S S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC SC POP 12HR 0 0 0 0 5 5 5 5 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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