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

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034
FOUS54 KSJT 241943
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
243 PM CDT FRI APR 24 2015
TXZ128-251015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 243 PM CDT FRI APR 24 2015 DATE 04/24/15 SAT 04/25/15 SUN 04/26/15 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 59 86 58 87 57 TEMP 84 80 68 63 60 59 71 83 86 82 68 62 60 58 71 84 87 83 68 61 59 57 DEWPT 55 56 54 40 44 40 45 41 38 40 44 35 39 39 43 47 48 49 49 50 49 48 MAX/MIN RH 60 18 48 26 72 RH 37 44 60 43 54 49 40 23 18 22 41 36 46 48 36 28 26 31 51 66 70 72 WIND DIR SW SW SW SW SW SW W W W SW S SW SW SW SW SW SW SW SW SW W W WIND SPD 18 10 10 11 10 10 11 14 15 10 8 9 8 9 9 8 9 9 4 2 2 3 CLOUDS SC SC FW FW FW FW FW FW FW CL CL FW FW FW FW SC SC SC SC SC SC B1 CLOUDS(%) 45 32 22 13 10 8 7 7 6 5 5 12 12 15 15 36 36 37 37 36 36 51 POP 12HR 5 0 0 20 30 QPF 12HR 0 0 0 0.04 0.21 RAIN SHWRS NM IS IS IS IS SC SC SC SC SC TSTMS NM IS IS IS IS SC SC SC SC SC LAL 4 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 3 HAINES 4 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 MIX HGT 7 5 <1 <1 <1 <1 1 8 9 6 <1 <1 <1 <1 1 9 12 9 <1 <1 <1 <1 T WIND DIR SW W S W W W W W W W SW SW SW SW W SW S SW S S SW NW T WIND SPD 28 21 9 14 11 12 17 24 26 24 12 10 9 10 14 18 23 20 10 6 6 5 SMOKE DISP EX GD PR PR PR PR PR EX EX VG PR PR PR PR PR EX EX EX PR PR PR PR TORNADO A A DATE 04/27 TUE 04/28/15 WED 04/29/15 THU 04/30/15 FRI 05/01/15 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 75 50 64 46 74 51 80 56 83 TEMP 73 71 54 50 62 61 49 46 71 71 54 51 77 77 59 56 80 80 DEWPT 50 49 51 46 45 42 42 41 42 42 44 43 45 45 48 48 49 48 MIN/MAX RH 41 91 48 83 32 74 29 74 30 RH 44 46 90 87 53 49 78 83 35 35 69 74 32 32 67 74 34 33 PWIND DIR NW N N N NW SE S SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 B1 B2 B2 B2 B1 SC FW FW FW FW FW FW FW FW FW FW FW POP 12HR 30 30 20 5 5 5 5 5 5 RAIN SHWRS SC SC SC SC IS IS TSTMS SC SC 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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