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

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313
FOUS54 KSJT 120940
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
440 AM CDT SUN APR 12 2015
TXZ128-122215- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 440 AM CDT SUN APR 12 2015 DATE SUN 04/12/15 MON 04/13/15 TUE 04/14/15 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 CDT 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 MAX/MIN 81 60 75 55 72 TEMP 64 67 75 81 76 68 65 63 61 64 70 75 70 62 60 58 56 59 66 72 67 DEWPT 62 62 62 62 61 62 62 61 58 58 57 54 55 56 57 54 55 57 54 53 53 MIN/MAX RH 53 92 48 100 51 RH 93 84 64 53 60 81 89 92 89 80 63 48 59 81 91 87 97 94 65 51 61 WIND DIR S S S S S S S S SW S SE E E NE NE NE N N N N N WIND SPD 9 10 11 10 10 10 5 3 3 2 3 10 10 10 10 8 7 4 4 5 7 CLOUDS B2 B2 B1 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 CLOUDS(%) 77 72 67 74 80 80 61 61 62 70 76 79 83 82 81 76 71 66 62 58 55 POP 12HR 20 50 60 60 20 QPF 12HR 0.05 0.18 0.32 0.36 0.02 RAIN SHWRS IS IS IS IS SC SC SC SC NM NM NM NM NM NM NM NM IS IS IS IS TSTMS IS IS IS IS SC SC SC SC NM NM NM NM NM NM NM NM IS IS IS IS LAL 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 2 2 2 2 1 HAINES 3 3 3 4 4 4 3 5 5 5 4 4 4 3 3 3 3 3 3 3 3 MIX HGT 2 4 6 9 8 <1 <1 <1 <1 4 8 9 7 2 2 1 1 3 5 5 5 T WIND DIR S S S S S S SW S S W SE SE SE E E E E SE S S SE T WIND SPD 19 21 14 14 18 6 3 5 4 3 5 11 17 23 23 16 11 10 9 8 5 SMOKE DISP PR GD GD VG VG PR PR PR PR PR FR GD VG PR PR PR PR PR FR PR PR DATE WED 04/15/15 THU 04/16/15 FRI 04/17/15 SAT 04/18/15 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 CDT 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 MIN/MAX 51 79 57 73 51 74 51 77 TEMP 56 52 69 74 63 58 67 68 57 52 66 69 57 52 68 71 DEWPT 51 51 54 53 56 55 55 49 49 44 45 40 44 42 45 42 MAX/MIN RH 100 42 93 46 77 32 73 30 RH 82 96 59 48 78 90 64 51 75 74 47 35 62 69 43 35 PWIND DIR E S S NW N NW W NW WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 SC SC SC SC B1 B1 B1 SC SC SC SC SC SC FW FW POP 12HR 10 10 30 40 20 20 10 5 RAIN SHWRS SC SC SC SC IS IS IS IS TSTMS SC SC SC SC 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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