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

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542
FOUS54 KSJT 281934
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
234 PM CDT TUE APR 28 2015
TXZ128-291030- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 234 PM CDT TUE APR 28 2015 DATE 04/28/15 WED 04/29/15 THU 04/30/15 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 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 44 73 49 79 53 TEMP 59 58 51 48 45 44 56 67 73 68 57 53 50 49 61 74 79 75 63 58 55 53 DEWPT 46 45 44 43 43 42 44 42 41 40 42 43 44 43 47 45 43 45 48 45 46 46 MAX/MIN RH 93 31 80 28 76 RH 61 61 77 83 93 93 64 40 31 36 57 69 80 80 60 35 28 34 59 61 72 76 WIND DIR N N NW W W W NW N N N E SE S S SW S S SE SE SE S S WIND SPD 12 10 3 2 3 5 8 8 7 4 3 4 4 4 7 4 3 4 7 8 7 5 CLOUDS B2 B1 SC FW FW FW FW FW FW CL CL CL CL CL CL CL CL CL CL CL CL CL CLOUDS(%) 71 51 31 11 11 10 10 9 8 2 2 2 2 4 4 1 1 1 1 1 1 1 POP 12HR 0 0 0 0 0 QPF 12HR 0 0 0 0 0 RAIN SHWRS IS LAL 1 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 4 4 4 4 4 4 4 4 5 5 5 6 6 5 6 MIX HGT 4 4 <1 <1 <1 <1 3 5 7 5 <1 <1 <1 <1 2 6 8 6 <1 <1 <1 <1 T WIND DIR N N N W W W N N N NW E S S S S W W S SE S S S T WIND SPD 18 19 4 5 6 6 13 11 8 4 2 5 5 6 12 6 4 8 8 10 9 6 SMOKE DISP GD GD PR PR PR PR FR FR FR PR PR PR PR PR PR PR PR FR PR PR PR PR DATE 05/01 SAT 05/02/15 SUN 05/03/15 MON 05/04/15 TUE 05/05/15 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 82 57 81 59 83 63 83 63 78 TEMP 77 78 62 57 77 78 63 59 79 80 67 63 80 80 67 63 75 76 DEWPT 48 49 49 50 52 49 50 54 59 56 58 61 62 60 63 62 62 61 MIN/MAX RH 29 77 35 82 42 93 46 97 56 RH 36 36 62 77 42 36 61 82 51 44 74 93 54 51 87 97 63 60 PWIND DIR S S S S S S S S S WIND CHAR <15 <15 <15 <15 15> 15> <15 <15 <15 AVG CLOUDS CL CL CL FW FW FW FW FW FW SC FW SC B1 B1 SC B1 B1 B1 POP 12HR 0 5 0 5 5 10 20 30 40 RAIN SHWRS IS IS SC SC SC SC TSTMS IS IS SC SC SC SC $$ 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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