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The Mathis Point Forecast Matrix
28.09N 97.82W ELEV. 155 FT 318 AM CDT THU OCT 3 2013 DATE THU 10/03/13 FRI 10/04/13 SAT 10/05/13 CDT 3HRLY 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3HRLY 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 MAX/MIN 91 73 91 73 90 TEMP 75 74 81 88 91 86 79 77 74 73 80 88 91 86 79 77 74 73 80 87 90 84 DEWPT 75 74 75 72 71 73 74 74 73 72 74 72 70 70 73 73 73 72 72 70 68 69 RH 100100 82 59 52 65 85 90 97 97 82 59 50 59 82 87 97 97 77 57 49 61 WIND DIR S SE S SE SE SE SE SE SE SE S SE SE SE SE SE SE S SE SE E E WIND SPD 5 4 6 12 16 13 10 6 4 3 8 8 11 12 10 8 5 5 6 5 11 11 CLOUDS B1 B1 SC SC SC FW SC SC SC SC SC SC FW FW FW SC SC SC SC SC SC B1 POP 12HR 10 5 5 5 5 QPF 12HR 0 0 0 0 0 RAIN SHWRS S S C TSTMS S OBVIS PF HEAT INDEX 87 95 98 93 81 83 94 96 91 92 94 88 MAX HEAT 95 98 88 95 97 87 92 94 DATE SUN 10/06/13 MON 10/07/13 TUE 10/08/13 WED 10/09/13 CDT 6HRLY 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6HRLY 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 MIN/MAX 64 76 58 82 55 87 65 87 TEMP 75 64 75 70 61 58 78 75 61 55 82 81 70 65 84 83 DEWPT 66 49 46 44 43 41 41 42 49 52 59 62 65 63 67 68 PWIND DIR NE N N NE SE E SE SE WIND CHAR GN GN LT LT LT LT GN GN AVG CLOUDS B1 B2 B2 B1 SC FW FW CL CL CL CL FW FW SC SC SC POP 12HR 40 20 0 0 0 0 5 5 RAIN SHWRS C C S TSTMS S S THE TABLE OF CODES BELOW DESCRIBE THE PFM PRODUCT:
THE FOLLOWING PARAMETERS APPEAR DAILY... MAX/MIN = DAYTIME HIGH AND NIGHTTIME LOW TEMPERATURE TEMP = TEMPERATURE AT 3 HOURLY INTERVALS DEWPT = DEWPOINT AT 3 HOURLY INTERVALS RH = RELATIVE HUMIDITY AT 3 HOURLY INTERVALS WIND DIR = WIND DIRECTION AT 3 HOURLY INTERVALS WIND SPD = WIND SPEED IN MPH AT 3 HOURLY INTERVALS CLOUDS = CLOUD COVER AT 3 HOURLY INTERVALS CL = CLEAR SKIES (0-5% CLOUD COVER) FW = MOSTLY CLEAR SKIES (6-25% CLOUD COVER) SC = PARTLY CLOUDY SKIES (26-50% CLOUD COVER) B1 = MOSTLY CLOUDY SKIES (51-69% CLOUD COVER) B2 = MOSTLY CLOUDY SKIES (70-87% CLOUD COVER) OV = CLOUDY SKIES (88-100% CLOUD COVER) POP 12HR = PROBABILITY OF PRECIPITATION FOR DAY AND NIGHT QPF 12HR = PRECIPITATION AMOUNT IN INCHES FOR DAY AND NIGHT THE FOLLOWING PARAMETERS APPEAR AS NEEDED... WIND GUST = WIND GUST IN MPH AT 3 HOURLY INTERVALS MAX QPF = MAXIMUM AMOUNT OF PRECIPITATION OCCURRING AT ANY ONE LOCATION SNOW 12HR = SNOWFALL AMOUNT IN INCHES FOR DAY AND NIGHT WIND CHILL = HOW IT FEELS BASED ON TEMPERATURE AND WIND EACH 3 HOURS MIN CHILL = LOWEST WIND CHILL OVER LAST 6 HOUR PERIOD HEAT INDEX = HOW IT FEELS BASED ON TEMPERATURE AND RH EACH 3 HOURS MAX HEAT = HIGHEST HEAT INDEX OVER LAST 6 HOUR PERIOD RAIN = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS RAIN RAIN SHWRS = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS RAIN SHOWERS SPRINKLES = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS SPRINKLES TSTMS = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS THUNDERSTORMS DRIZZLE = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS DRIZZLE SNOW = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS SNOW SNOWSHWRS = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS SNOW SHOWERS FLURRIES = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS FLURRIES SLEET = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS ICE PELLETS FRZG RAIN = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS FREEZING RAIN FRZG DRZL = PRECIPITATION TYPE FOR EACH 3 HOUR PERIOD IS FREEZING DRIZZLE EACH PRECIPITATION PARAMETER IS CLASSIFIED AS FOLLOWS... IS = ISOLATED (10-20% COVERAGE) S = SLIGHT (10-20% PROBABILITY) SC = SCATTERED (30-50% COVERAGE) C = CHANCE (30-50% PROBABILITY) NM = NUMEROUS (60-70% COVERAGE) L = LIKELY (60-70% PROBABILITY) O = OCCASIONAL (80-100% PROBABILITY) D = DEFINITE (80-100% PROBABILITY) EC = EXTENSIVE COVERAGE (80-100% PROBABILITY) PA = PATCHY (<25% COVERAGE) AR = AREAS (25-50% COVERAGE) WD = WIDESPREAD (>50% COVERAGE) OBSTRUCTIONS TO VISIBILITY (OBVIS) ARE CLASSIFIED AS FOLLOWS... F = FOG PF = PATCHY FOG F+ = DENSE FOG PF+ = PATCHY DENSE FOG H = HAZE BS = BLOWING SNOW BD = BLOWING DUST AF = VOLCANIC ASH K = SMOKE ADDITIONAL EXTENDED FORECAST PARAMETERS ARE CLASSIFIED AS FOLLOWS... PWIND DIR = PRIMARY WIND DIRECTION FOR EACH 12 HOUR PERIOD WIND CHAR = WIND CHARACTERISTIC FOR EACH 12 HOUR PERIOD LT = LIGHT (< 8 MPH) GN = GENTLE (8-14 MPH) BZ = BREEZY (15-22 MPH) WY = WINDY (23-30 MPH) VW = VERY WINDY (31-39 MPH) SD = STRONG (>40 MPH) AVG CLOUDS = AVERAGE CLOUD COVER FOR EACH 12 HOUR PERIOD MM = MISSING DATA IF A HURRICANE IS EXPECTED THEN THE FOLLOWING APPLIES... 0-24 HOURS BEFORE LANDFALL...THE ACTUAL WIND SPEEDS WILL BE USED. 25-60 HOURS BEFORE LANDFALL...THE CODE "HU" WILL BE USED FOR WINDS AND "HG" FOR WIND GUSTS. 61-120 HOURS BEFORE LANDFALL...THE CODE "HU" WILL ONLY BE USED.
- National Weather Service
- Corpus Christi, TX Weather Forecast Office
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- Corpus Christi, TX 78406
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- Page Author: CRP Webmaster
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- Page last modified: 26-Jan-2013 1:46 AM UTC