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

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735
FOUS54 KSJT 192105
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
305 PM CST FRI DEC 19 2014
TXZ128-201015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 305 PM CST FRI DEC 19 2014 DATE 12/19/14 SAT 12/20/14 SUN 12/21/14 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 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 35 55 40 60 44 TEMP 43 39 38 37 35 39 49 55 49 45 43 43 40 44 54 60 54 49 48 47 44 DEWPT 40 39 38 37 35 38 40 41 41 42 42 41 40 42 42 41 41 41 40 40 36 MAX/MIN RH 100 59 100 50 76 RH 89100100100100 99 73 59 73 91 95 91 99 94 65 50 61 73 75 76 72 WIND DIR NE E E SE SE S S S SE SE S S S S S S S S SW SW SW WIND SPD 4 3 3 2 3 3 4 5 5 5 7 7 7 10 10 11 8 9 10 11 10 CLOUDS B1 B1 B1 B1 B1 B1 SC SC SC SC SC B1 B2 B1 SC SC SC FW FW FW FW CLOUDS(%) 51 51 51 55 59 53 48 37 34 41 48 62 75 60 46 36 26 25 24 19 25 POP 12HR 5 5 5 5 5 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 HAINES 3 3 3 3 3 3 3 3 3 3 4 4 3 3 3 4 4 4 5 4 4 MIX HGT 2 2 2 2 2 2 3 4 2 <1 <1 <1 <1 1 2 3 <1 <1 <1 <1 <1 T WIND DIR NE E SE W SE SE S S S SE S S S S SW SW S S SW SW SW T WIND SPD 5 3 1 2 2 4 4 5 9 6 9 11 12 13 20 20 11 13 16 21 18 SMOKE DISP PR PR PR PR PR PR PR PR PR PR PR PR PR PR FR FR PR PR PR PR PR DATE 12/22/14 TUE 12/23/14 WED 12/24/14 THU 12/25/14 FRI 12/26/14 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 68 41 55 33 61 40 70 45 62 TEMP 60 58 47 41 50 47 38 33 52 53 45 40 60 61 50 46 57 53 DEWPT 36 36 38 34 30 26 25 23 28 27 28 31 35 35 36 35 33 32 MIN/MAX RH 31 76 35 69 28 72 27 68 33 RH 40 44 72 76 46 43 59 66 39 36 51 69 39 38 58 67 41 44 PWIND DIR W N NW NW W SW S SW NW WIND CHAR <15 <15 15> <15 <15 <15 15> <15 <15 AVG CLOUDS FW SC SC SC SC FW FW FW FW FW FW FW FW FW FW SC SC SC POP 12HR 5 20 10 0 5 5 5 5 5 RAIN SHWRS 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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