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

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338
FOUS54 KSJT 231957
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
257 PM CDT WED JUL 23 2014
TXZ128-241015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 257 PM CDT WED JUL 23 2014 DATE 07/23/14 THU 07/24/14 FRI 07/25/14 SAT 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 73 100 74 101 76 TEMP 99 93 82 78 75 73 83 92100 94 83 79 76 74 84 93101 95 85 81 78 76 DEWPT 60 61 64 66 65 64 65 63 60 57 63 64 65 65 66 62 58 56 58 60 62 64 MAX/MIN RH 74 27 73 24 66 RH 28 34 54 66 71 73 55 38 27 29 51 60 69 73 55 36 24 27 40 50 58 66 WIND DIR E E SE SE S SE SW SE E SE SE SE S S SW SW S S S S S S WIND SPD 10 9 4 3 3 3 3 3 7 8 5 5 8 5 11 7 7 8 8 8 8 9 CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW CLOUDS(%) 24 21 17 12 14 16 16 25 24 21 22 23 21 18 19 20 20 19 21 22 23 24 POP 12HR 10 5 5 5 0 QPF 12HR 0 0 0 0 0 LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 5 4 4 4 5 5 4 5 5 5 5 5 6 6 6 6 6 MIX HGT 9 7 <1 <1 <1 <1 3 7 9 8 <1 <1 <1 <1 3 8 9 8 <1 <1 <1 <1 T WIND DIR E E SE S S S S E E SE SE SE S SW SW S S S S S S S T WIND SPD 12 14 6 4 4 4 4 6 8 9 10 11 10 10 12 8 10 13 13 12 13 11 SMOKE DISP GD GD PR PR PR PR PR FR GD GD PR PR PR PR PR FR GD GD PR PR PR PR DATE 07/26 SUN 07/27/14 MON 07/28/14 TUE 07/29/14 WED 07/30/14 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 102 75 99 74 98 72 92 71 91 TEMP 95 96 80 75 92 93 79 74 91 92 77 72 87 87 75 71 85 86 DEWPT 59 55 59 64 60 57 57 60 58 60 65 65 63 61 64 67 61 67 MIN/MAX RH 23 68 26 62 29 79 37 86 41 RH 30 25 50 68 34 30 47 62 33 35 68 79 46 42 69 86 45 54 PWIND DIR S S S S E E N SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC SC SC POP 12HR 0 0 0 5 10 20 20 20 20 RAIN SHWRS IS IS IS IS IS IS IS IS TSTMS IS IS IS IS IS IS 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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