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

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284
FOUS54 KSJT 212031
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
231 PM CST FRI NOV 21 2014
TXZ128-221015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 231 PM CST FRI NOV 21 2014 DATE 11/21/14 SAT 11/22/14 SUN 11/23/14 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 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 58 67 49 70 39 TEMP 70 66 62 61 59 58 60 64 66 60 52 52 50 50 56 67 70 57 44 44 41 40 DEWPT 55 55 57 57 57 58 59 59 58 56 53 51 48 40 38 37 34 31 31 30 29 28 MAX/MIN RH 100 73 100 25 67 RH 59 68 86 87 93 99 95 84 75 87100 94 92 68 51 33 26 37 60 59 63 63 WIND DIR S SE SE S S S S S S S S SW SW SW W W W W NW NW NW W WIND SPD 9 9 10 10 10 8 12 8 5 4 4 5 9 11 17 19 16 10 9 8 8 8 CLOUDS B1 B1 B2 OV OV OV OV B2 B2 B1 SC SC SC FW FW FW FW FW FW FW FW FW CLOUDS(%) 65 67 81 90 92 93 89 83 74 65 34 37 31 20 20 7 7 12 12 20 20 8 POP 12HR 80 90 10 0 5 QPF 12HR 0.43 1.94 0 0 0 RAIN SHWRS SC SC O O O O O O TSTMS SC SC O O O O O O LAL 1 3 3 5 5 5 5 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 3 3 3 3 3 3 3 3 3 3 3 5 6 6 5 5 4 4 6 6 6 MIX HGT 4 <1 <1 <1 <1 <1 <1 3 4 <1 <1 <1 <1 <1 <1 3 5 <1 <1 <1 <1 <1 T WIND DIR S E E S S S S SW S S S S SW SW W NW NW N N W SW W T WIND SPD 17 6 5 17 18 13 21 26 20 12 9 10 10 11 14 29 23 9 8 4 6 10 SMOKE DISP FR PR PR PR PR PR PR GD GD PR PR PR PR PR PR GD GD PR PR PR PR PR DATE 11/24/14 TUE 11/25/14 WED 11/26/14 THU 11/27/14 FRI 11/28/14 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 34 54 37 61 38 62 37 57 TEMP 56 48 38 35 47 47 39 37 53 52 42 39 59 52 41 38 55 48 DEWPT 30 26 25 22 23 23 21 19 28 31 30 28 34 35 35 32 35 35 MIN/MAX RH 30 63 30 52 31 70 36 85 43 RH 37 42 60 59 38 38 48 48 38 45 63 66 39 52 78 80 48 60 PWIND DIR W NW NW SW W SW SW S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW FW FW SC FW FW CL FW FW CL CL CL CL CL CL FW FW FW POP 12HR 5 10 0 0 0 10 0 0 5 $$ 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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