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

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894
FOUS54 KSJT 032112
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
312 PM CST TUE MAR 3 2015
TXZ128-041015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 312 PM CST TUE MAR 3 2015 DATE 03/03/15 WED 03/04/15 THU 03/05/15 FRI 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 47 47 21 35 21 TEMP 67 58 54 52 47 47 37 29 23 31 29 27 24 22 28 32 32 26 25 24 23 DEWPT 52 51 51 50 47 44 35 28 23 22 20 18 17 17 17 17 18 17 16 17 17 MAX/MIN RH 100 53 100 47 88 RH 59 77 90 93100 89 92 96100 69 70 67 74 80 63 53 56 67 68 73 77 WIND DIR S E SE SE N N N N N N N N N N N NE NE E SE SE S WIND SPD 2 3 1 2 2 10 16 17 17 17 16 12 10 10 10 8 4 3 3 3 3 CLOUDS B1 B2 OV OV OV OV OV OV OV B2 B2 B1 SC SC SC FW FW FW FW FW FW CLOUDS(%) 69 79 88 92 95 94 92 93 94 83 72 56 40 33 26 24 22 20 17 17 16 POP 12HR 50 70 60 10 5 QPF 12HR 0.12 0.20 0.15 0 0 FRZG RAIN L L RAIN L L RAIN SHWRS SC SC SC SC SLEET L L L L L L SNOW C C TSTMS IS IS IS IS LAL 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 4 4 3 3 3 3 3 2 2 2 2 2 3 4 4 3 4 4 4 4 4 MIX HGT 2 <1 <1 <1 <1 2 2 2 2 2 3 2 2 3 4 4 3 <1 <1 <1 <1 T WIND DIR S SE S SW S N N N N N N N N NE NE NE NE NE E SE S T WIND SPD 9 6 6 4 3 16 23 25 28 33 32 28 27 20 19 16 11 3 3 2 2 SMOKE DISP PR PR PR PR PR PR PR FR FR GD GD GD FR FR GD FR PR PR PR PR PR DATE 03/06/15 SAT 03/07/15 SUN 03/08/15 MON 03/09/15 TUE 03/10/15 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 45 32 53 36 58 39 62 40 64 TEMP 33 42 36 34 43 49 41 38 47 54 44 41 51 57 46 43 52 60 DEWPT 20 23 22 24 28 32 31 31 36 37 36 35 39 37 37 37 41 39 MIN/MAX RH 38 75 39 90 45 91 41 92 41 RH 58 46 57 66 55 52 68 77 65 52 71 81 63 48 70 79 66 46 PWIND DIR S S SW S S S SE SE S WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS FW SC FW SC SC SC SC SC SC SC SC SC FW FW FW FW FW FW POP 12HR 5 5 10 5 5 5 5 5 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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