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

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833
FOUS54 KSJT 161954
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
254 PM CDT SAT AUG 16 2014
TXZ128-171015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 254 PM CDT SAT AUG 16 2014 DATE 08/16/14 SUN 08/17/14 MON 08/18/14 TUE 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 75 95 72 97 74 TEMP 99 96 85 81 78 75 84 92 95 93 82 78 75 72 84 93 97 95 84 80 77 74 DEWPT 60 60 61 62 64 65 68 66 63 62 63 65 65 65 63 61 60 58 60 63 63 63 MAX/MIN RH 71 35 79 29 70 RH 29 30 45 53 62 71 59 43 35 37 54 64 71 79 50 35 30 30 46 56 62 70 WIND DIR S S SE S S S S S S S S S S S SW S S S S S S S WIND SPD 10 9 7 7 8 8 14 10 11 10 9 7 8 7 10 8 9 9 10 8 9 9 CLOUDS B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1 B1 B1 SC SC SC SC B1 CLOUDS(%) 65 66 69 72 65 52 56 60 56 51 56 52 48 44 56 68 56 48 45 45 49 52 POP 12HR 20 20 20 10 10 QPF 12HR 0.01 0.05 0.02 0 0 RAIN SHWRS IS IS IS IS IS IS IS IS IS IS IS IS IS TSTMS IS IS IS IS IS IS IS IS IS IS IS IS IS LAL 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 HAINES 5 6 6 6 5 5 5 5 5 6 6 5 5 5 5 4 5 MIX HGT 10 11 <1 <1 <1 <1 3 6 9 8 <1 <1 <1 <1 4 8 12 10 <1 <1 <1 <1 T WIND DIR S S S S S S S S SE S S S S S SW S S S S S S S T WIND SPD 10 13 6 8 8 13 25 20 6 14 5 4 5 9 18 10 11 14 8 9 8 9 SMOKE DISP GD VG PR PR PR PR GD VG FR VG PR PR PR PR GD GD VG VG PR PR PR PR DATE 08/19 WED 08/20/14 THU 08/21/14 FRI 08/22/14 SAT 08/23/14 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 98 73 97 74 95 75 97 75 98 TEMP 94 95 79 73 93 95 80 74 91 93 80 75 93 95 80 75 94 95 DEWPT 61 58 62 65 61 57 63 66 64 59 63 66 60 55 58 60 60 55 MIN/MAX RH 28 76 27 76 31 74 26 61 25 RH 34 29 56 76 35 29 56 76 41 32 56 74 33 27 47 61 32 26 PWIND DIR S S S S S S S S S WIND CHAR <15 <15 <15 15> <15 <15 <15 <15 <15 AVG CLOUDS B1 SC SC SC SC SC SC SC SC SC SC SC FW FW SC FW FW FW POP 12HR 10 5 5 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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