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Summary for Tropical Storm Franklin (AT2/AL072017)
2017-08-07 13:44:01| National Hurricane Center (Atlantic)
...FRANKLIN GRADUALLY STRENGTHENING... As of 8:00 AM EDT Mon Aug 7 the center of Franklin was located near 17.3, -84.7 with movement WNW at 13 mph. The minimum central pressure was 1004 mb with maximum sustained winds of about 50 mph.
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Tropical Storm Franklin Public Advisory Number 3A
2017-08-07 13:44:01| National Hurricane Center (Atlantic)
Issued at 800 AM EDT Mon Aug 07 2017 000 WTNT32 KNHC 071143 TCPAT2 BULLETIN Tropical Storm Franklin Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL072017 800 AM EDT Mon Aug 07 2017 ...FRANKLIN GRADUALLY STRENGTHENING... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...17.3N 84.7W ABOUT 230 MI...370 KM E OF BELIZE CITY ABOUT 250 MI...400 KM ESE OF CHETUMAL MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...75 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Belize has changed the Tropical Storm Watch to a Tropical Storm Warning from Belize City northward to the border of Mexico. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * The coast of Mexico from Chetumal to Punta Allen A Tropical Storm Warning is in effect for... * Belize City northward to the border of Mexico * The coast of Mexico from Chetumal to Campeche A Tropical Storm Watch is in effect for... * The coast of Mexico from Campeche to Sabancuy A Hurricane Watch means that hurricane conditions are possible within the watch area, in this case within the next 24 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 24 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere around the Bay of Campeche should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM EDT (1200 UTC), the center of Tropical Storm Franklin was located near latitude 17.3 North, longitude 84.7 West. Franklin is moving toward the west-northwest near 13 mph (20 km/h), and this general motion is expected to continue over the next 48 hours. On the forecast track, the center of Franklin will pass well north of Honduras today, then approach the east coast of the Yucatan peninsula by late afternoon. Franklin is then expected to move across the Yucatan Peninsula tonight and on Tuesday. Maximum sustained winds have increased to near 50 mph (85 km/h) with higher gusts. Strengthening is forecast until the center reaches the eastern coast of the Yucatan peninsula, and Franklin could be near hurricane strength by the time landfall occurs this evening. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Rainfall amounts of 3 to 6 inches, with isolated amounts of around 12 inches, are possible across the Yucatan Peninsula of Mexico and Belize through Wednesday. These rains could produce life-threatening flash floods. WIND: Hurricane conditions are possible in the Hurricane Watch area by this evening. Tropical Storm conditions are expected to begin in portions of the warning area this afternoon or evening. Tropical Storm conditions are possible in the watch area in Mexico on Tuesday. NEXT ADVISORY ------------- Next complete advisory at 1100 AM EDT. $$ Forecaster Pasch
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Tropical Storm Franklin Forecast Discussion Number 3
2017-08-07 10:49:32| National Hurricane Center (Atlantic)
Issued at 500 AM EDT Mon Aug 07 2017 000 WTNT42 KNHC 070849 TCDAT2 Tropical Storm Franklin Discussion Number 3 NWS National Hurricane Center Miami FL AL072017 500 AM EDT Mon Aug 07 2017 Deep convection associated with Franklin has been steadily increasing in both coverage and vertical depth since the previous advisory. Wind data from a late-arriving 0231Z ASCAT-A pass suggest that Franklin might not have had a closed surface circulation at that time. However, the new GOES-16 nighttime microphysics imagery clearly shows low clouds moving from west to east on the south side of the alleged center, which is suggestive of a closed low-level circulation. The intensity has been nudged upward to 40 kt based on sustained winds of 39 kt measured at 4-meters elevation from NOAA buoy 42057 located about 110 nmi east of the center. The initial motion estimate is 300/12 kt. The latest NHC model guidance remains in excellent agreement that Franklin will continue to move west-northwestward along the south side of a deep-layer ridge during the next 48 hours or so, making landfall along the east coast of the Yucatan peninsula in 18-24 hours. After the cyclone crosses over Yucatan and moves into the Bay of Campeche by Wednesday, a more westward motion is expected thereafter as the ridge currently situated over northern Mexico and the southwestern U.S. builds southward. The track model guidance is tightly clustered around the previous forecast track, so the new forecast track is just an extension of the previous one and lies down the middle of the guidance envelope. Upper-level outflow continues to expand in the western semicircle, and a pronounced poleward outflow channel has developed in the northern semicircle, which is being aided by a large upper-level low located north of Puerto Rico. Although UW-CIMSS wind analyses indicate that modest westerly mid-level shear is still affecting the cyclone, that hindrance is forecast to abate in another 6 h or so. Both the GFS and ECMWF models are forecasting the deep-layer and mid-level shear to decrease to near zero in the 12-24 h period, suggesting that Franklin could undergo a period of rapid intensification right up until landfall occurs. Unfortunately, the official intensity forecast does not directly reflect that possible intensification trend due to the 24-h position being inland over Yucatan with weakening occuring at that time due to land interaction. Franklin is likely to reach a peak intensity of about 60 kt or so prior to landfall, and for that reason the government of Mexico has issued a Hurricane Watch. The cyclone will weaken some as it moves over the Yucatan, but re-strengthening is expected after Franklin emerges over the very warm waters of the Bay of Campeche in the 48-72 h period. The NHC intensity forecast remains close to the higher SHIPS guidance at 24 hours, and is near the IVCN and HCCA consensus models after that time. FORECAST POSITIONS AND MAX WINDS INIT 07/0900Z 17.1N 84.2W 40 KT 45 MPH 12H 07/1800Z 18.0N 85.8W 50 KT 60 MPH 24H 08/0600Z 19.0N 88.0W 55 KT 65 MPH...INLAND 36H 08/1800Z 19.9N 90.2W 40 KT 45 MPH...INLAND 48H 09/0600Z 20.4N 92.3W 45 KT 50 MPH...OVER WATER 72H 10/0600Z 21.0N 96.4W 55 KT 65 MPH 96H 11/0600Z 21.1N 100.5W 25 KT 30 MPH...INLAND 120H 12/0600Z...DISSIPATED $$ Forecaster Stewart
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Tropical Storm Franklin Graphics
2017-08-07 10:44:51| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 07 Aug 2017 08:44:51 GMT Wind Speed Probabilities last updated Mon, 07 Aug 2017 09:23:02 GMT
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Tropical Storm Franklin Wind Speed Probabilities Number 3
2017-08-07 10:40:59| National Hurricane Center (Atlantic)
Issued at 0900 UTC MON AUG 07 2017 000 FONT12 KNHC 070840 PWSAT2 TROPICAL STORM FRANKLIN WIND SPEED PROBABILITIES NUMBER 3 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072017 0900 UTC MON AUG 07 2017 AT 0900Z THE CENTER OF TROPICAL STORM FRANKLIN WAS LOCATED NEAR LATITUDE 17.1 NORTH...LONGITUDE 84.2 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 40 KTS...45 MPH...75 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 06Z MON AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 06Z MON 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI PERIODS TO TO TO TO TO TO TO 18Z MON 06Z TUE 18Z TUE 06Z WED 06Z THU 06Z FRI 06Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT HARLINGEN TX 34 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) BROWNSVILLE TX 34 X X( X) X( X) X( X) 3( 3) 1( 4) X( 4) GFMX 250N 960W 34 X X( X) X( X) X( X) 6( 6) 2( 8) X( 8) LA PESCA MX 34 X X( X) X( X) X( X) 8( 8) 6(14) X(14) TAMPICO MX 34 X X( X) X( X) X( X) 16(16) 13(29) X(29) TAMPICO MX 50 X X( X) X( X) X( X) 2( 2) 5( 7) X( 7) TAMPICO MX 64 X X( X) X( X) X( X) X( X) 1( 1) X( 1) TUXPAN MX 34 X X( X) X( X) 1( 1) 22(23) 10(33) X(33) TUXPAN MX 50 X X( X) X( X) X( X) 4( 4) 2( 6) X( 6) TUXPAN MX 64 X X( X) X( X) X( X) X( X) 1( 1) X( 1) VERACRUZ MX 34 X X( X) X( X) 1( 1) 13(14) 2(16) X(16) VERACRUZ MX 50 X X( X) X( X) X( X) 2( 2) 1( 3) X( 3) FRONTERA MX 34 X 1( 1) 1( 2) 5( 7) 3(10) X(10) X(10) MERIDA MX 34 1 10(11) 26(37) 4(41) X(41) X(41) X(41) MERIDA MX 50 X X( X) 3( 3) 1( 4) X( 4) X( 4) X( 4) COZUMEL MX 34 5 36(41) 2(43) X(43) X(43) X(43) X(43) BELIZE CITY 34 2 24(26) 1(27) X(27) X(27) X(27) X(27) PUERTO BARRIOS 34 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3) GUANAJA 34 22 3(25) X(25) X(25) X(25) X(25) X(25) CP SAN ANTONIO 34 3 6( 9) 1(10) X(10) X(10) X(10) X(10) ISLE OF PINES 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) $$ FORECASTER STEWART
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