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

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307
FOUS54 KSJT 142104
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
304 PM CST SUN DEC 14 2014
TXZ128-151015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 304 PM CST SUN DEC 14 2014 DATE 12/14/14 MON 12/15/14 TUE 12/16/14 WED 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 41 61 35 54 42 TEMP 59 51 46 44 41 45 57 61 51 44 39 38 35 39 50 54 48 45 45 43 42 DEWPT 33 34 32 33 27 30 30 27 29 30 30 30 27 29 28 30 30 31 32 33 34 MAX/MIN RH 66 27 76 38 76 RH 37 52 59 66 57 56 36 27 42 58 70 74 73 68 43 40 49 58 60 68 72 WIND DIR SW SW SW W W W NW NW NW N N N N N NE E E SE SE SE SE WIND SPD 10 12 11 11 9 9 11 10 3 3 3 5 4 7 8 8 5 7 8 9 10 CLOUDS CL FW FW FW FW FW FW FW FW FW FW SC FW SC SC B1 B1 B2 B2 B2 B2 CLOUDS(%) 3 9 14 14 14 13 13 12 12 18 24 33 22 28 33 57 57 72 82 82 82 POP 12HR 0 0 0 5 10 QPF 12HR 0 0 0 0 0 RAIN SHWRS SC LAL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 HAINES 6 5 5 4 3 3 3 4 4 4 3 3 3 3 3 4 4 3 2 3 MIX HGT 3 1 <1 <1 <1 2 3 4 3 1 <1 <1 <1 1 2 3 2 1 <1 <1 <1 T WIND DIR W W W W W NW NW NW N N N NE NE NE NE E SE SE SE S SE T WIND SPD 29 43 19 24 13 11 17 13 11 12 5 10 6 9 9 10 11 19 10 18 10 SMOKE DISP GD FR PR PR PR PR FR FR PR PR PR PR PR PR PR PR PR PR PR PR PR DATE 12/17/14 THU 12/18/14 FRI 12/19/14 SAT 12/20/14 SUN 12/21/14 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 51 44 60 44 51 33 52 35 53 TEMP 49 47 46 44 56 53 46 44 49 43 35 33 48 44 37 35 49 46 DEWPT 38 41 44 44 45 43 44 44 40 36 33 30 33 32 32 31 34 33 MIN/MAX RH 63 100 57 100 63 96 47 88 49 RH 66 79 96 100 66 69 93 100 70 75 92 89 55 62 83 85 57 60 PWIND DIR S S S NE N N N SE SE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B2 B2 B2 B1 B1 B1 B2 B2 B2 B1 SC FW FW FW FW SC SC SC POP 12HR 40 30 30 40 30 10 5 5 10 RAIN SHWRS SC SC SC SC SC SC SC SC SC SC 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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