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

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277
FOUS54 KSJT 200910
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
410 AM CDT MON OCT 20 2014
TXZ128-202215- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 410 AM CDT MON OCT 20 2014 DATE MON 10/20/14 TUE 10/21/14 WED 10/22/14 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 81 57 80 57 79 TEMP 59 67 77 81 75 65 61 59 57 65 75 80 74 65 61 59 57 65 75 79 74 DEWPT 58 61 58 58 58 59 59 58 56 57 54 55 54 55 54 55 51 52 53 54 54 MIN/MAX RH 46 98 41 88 42 RH 96 81 53 46 55 81 93 96 96 75 49 42 50 71 79 88 81 64 47 42 50 WIND DIR S S SW SE E SE S S S S SE SE SE SE SE SE SE SE SE SE SE WIND SPD 4 5 3 4 4 4 4 4 3 5 8 8 7 7 5 5 5 8 10 8 7 CLOUDS B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B2 B2 B2 CLOUDS(%) 65 59 53 54 55 52 48 51 53 55 56 51 47 54 61 60 60 67 74 75 76 POP 12HR 10 5 5 10 10 QPF 12HR 0 0 0 0 0 RAIN SHWRS SC TSTMS SC LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 HAINES 3 3 3 4 4 3 3 4 4 4 3 4 4 4 4 4 4 5 5 5 3 MIX HGT <1 4 7 8 <1 <1 <1 <1 <1 3 6 8 <1 <1 <1 <1 <1 2 5 5 <1 T WIND DIR S SW SE E E SE S S S S SE SE SE SE S S SE S SE SE SE T WIND SPD 6 12 3 8 5 5 5 5 4 9 9 12 6 6 6 6 5 14 13 11 6 SMOKE DISP PR PR PR FR PR PR PR PR PR PR FR GD PR PR PR PR PR PR FR FR PR DATE THU 10/23/14 FRI 10/24/14 SAT 10/25/14 SUN 10/26/14 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 78 54 81 52 82 53 82 TEMP 61 57 73 71 58 54 74 73 57 52 74 74 58 53 75 74 DEWPT 54 56 57 53 52 52 51 48 49 49 49 48 48 48 47 47 MAX/MIN RH 95 45 94 35 88 34 84 31 RH 77 95 57 53 81 94 44 41 75 88 41 41 70 84 38 39 PWIND DIR SE W NE N SE SW S S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B1 SC SC SC FW FW FW FW FW FW FW FW FW FW POP 12HR 30 20 10 10 5 5 5 5 RAIN SHWRS SC SC IS IS TSTMS SC SC 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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