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

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157
FOUS54 KSJT 242007
PFWSJT

FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE SAN ANGELO TX
307 PM CDT SUN MAY 24 2015
TXZ128-251015- HAMBY RAWS-CALLAHAN TX 32.50N 99.62W ELEV. 1900 FT 307 PM CDT SUN MAY 24 2015 DATE 05/24/15 MON 05/25/15 TUE 05/26/15 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 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 65 79 63 88 68 TEMP 83 79 71 67 66 65 69 75 79 76 68 65 64 63 71 80 88 84 74 70 69 68 DEWPT 62 60 60 60 61 63 63 63 63 62 54 47 52 56 59 62 58 54 61 68 68 68 MAX/MIN RH 92 57 78 35 100 RH 49 52 68 78 84 92 81 66 57 61 61 51 64 78 66 54 36 36 64 92 98100 WIND DIR S S S S S S S S SE E E S S S S SW SW S S S S S WIND SPD 8 8 9 10 10 11 11 10 10 7 3 3 4 7 11 11 11 7 10 12 11 10 CLOUDS B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC SC FW FW FW FW SC SC B1 CLOUDS(%) 53 36 38 40 50 59 59 65 65 47 47 44 44 43 43 24 24 20 20 42 42 55 POP 12HR 20 50 20 20 10 QPF 12HR 0.01 0.59 0.02 0.02 0 RAIN SHWRS SC IS IS IS IS SC SC SC SC IS IS IS IS IS IS IS IS TSTMS SC IS IS IS IS SC SC SC SC IS IS IS IS IS IS IS IS LAL 3 2 2 2 2 3 3 3 3 2 2 2 2 2 2 2 2 1 1 1 1 1 HAINES 3 4 4 5 6 5 5 4 3 4 4 4 4 5 6 6 6 6 6 5 6 MIX HGT 8 7 3 <1 <1 <1 3 4 6 8 3 <1 <1 <1 3 6 10 8 3 <1 <1 <1 T WIND DIR SW SW S S S S S S S S S S SW S SW SW SW SW S S S S T WIND SPD 14 17 14 18 20 23 23 21 24 14 10 12 16 20 21 20 20 18 16 23 26 26 SMOKE DISP GD GD PR PR PR PR GD GD VG GD PR PR PR PR FR VG EX VG PR PR PR PR DATE 05/27 THU 05/28/15 FRI 05/29/15 SAT 05/30/15 SUN 05/31/15 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 89 69 81 67 82 68 82 63 80 TEMP 82 85 72 69 77 78 69 67 77 79 70 68 78 78 65 63 75 76 DEWPT 66 66 68 67 67 66 66 66 67 67 67 67 66 64 63 60 62 61 MIN/MAX RH 47 94 59 97 61 97 56 94 52 RH 58 53 88 93 70 66 90 97 71 67 90 97 67 62 92 90 64 60 PWIND DIR S S S S S S S NE NE WIND CHAR <15 <15 <15 <15 <15 <15 <15 <15 <15 AVG CLOUDS B1 SC SC B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 SC B1 B1 SC POP 12HR 10 30 40 50 40 40 30 20 20 RAIN SHWRS SC SC SC SC SC SC SC SC SC SC SC SC IS IS IS IS TSTMS SC SC SC SC SC SC SC SC 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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