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Tropical Storm Iota Wind Speed Probabilities Number 18
2020-11-17 21:42:36| National Hurricane Center (Atlantic)
Issued at 2100 UTC TUE NOV 17 2020 000 FONT11 KNHC 172042 PWSAT1 TROPICAL STORM IOTA WIND SPEED PROBABILITIES NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL312020 2100 UTC TUE NOV 17 2020 AT 2100Z THE CENTER OF TROPICAL STORM IOTA WAS LOCATED NEAR LATITUDE 13.7 NORTH...LONGITUDE 86.2 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 50 KTS...60 MPH...95 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN STANDARD TIME (EST)...SUBTRACT 5 HOURS FROM Z TIME CENTRAL STANDARD TIME (CST)...SUBTRACT 6 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 18Z TUE 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 18Z TUE 06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT PERIODS TO TO TO TO TO TO TO 06Z WED 18Z WED 06Z THU 18Z THU 18Z FRI 18Z SAT 18Z SUN FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER BLAKE
Summary for Tropical Storm Iota (AT1/AL312020)
2020-11-17 21:42:16| National Hurricane Center (Atlantic)
...THREAT OF CATASTROPHIC FLASH FLOODING AND MUDSLIDES CONTINUES ACROSS PORTIONS OF CENTRAL AMERICA FROM IOTA... As of 3:00 PM CST Tue Nov 17 the center of Iota was located near 13.7, -86.2 with movement W at 12 mph. The minimum central pressure was 993 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Iota Public Advisory Number 18
2020-11-17 21:42:16| National Hurricane Center (Atlantic)
Issued at 300 PM CST Tue Nov 17 2020 614 WTNT31 KNHC 172042 TCPAT1 BULLETIN Tropical Storm Iota Advisory Number 18 NWS National Hurricane Center Miami FL AL312020 300 PM CST Tue Nov 17 2020 ...THREAT OF CATASTROPHIC FLASH FLOODING AND MUDSLIDES CONTINUES ACROSS PORTIONS OF CENTRAL AMERICA FROM IOTA... SUMMARY OF 300 PM CST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...13.7N 86.2W ABOUT 75 MI...125 KM ESE OF TEGUCIGALPA HONDURAS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Nicaragua has discontinued the Tropical Storm Warning for the east coast of Nicaragua from Bluefields northward to the border with Honduras. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The coast of Honduras * Bay Islands A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 300 PM CST (2100 UTC), the center of Tropical Storm Iota was located near latitude 13.7 North, longitude 86.2 West. Iota is moving toward the west near 12 mph. The center of the storm will move into southern Honduras tonight before dissipating near El Salvador early Wednesday. Maximum sustained winds have decreased to near 60 mph (95 km/h) with higher gusts. Iota should weaken to a tropical depression this evening and degenerate into a remnant low pressure area on Wednesday. Tropical-storm-force winds extend outward up to 195 miles (315 km) from the center. The estimated minimum central pressure is 993 mb (29.33 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Iota can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. WIND: Strong winds are occuring near the center of Iota and these winds will spread farther inland across southern Honduras during the next several hours. Tropical storm conditions are also occurring in the Tropical Storm Warning areas along the coast in Honduras. RAINFALL: Iota is expected to produce the following rainfall accumulations through Thursday: Honduras, northern Nicaragua, southeast and central Guatemala and southern Belize: 10 to 20 inches (250 to 500 mm), with isolated maximum totals of 30 inches (750 mm). El Salvador and Panama: 4 to 8 inches (100 to 200 mm), with isolated maximum totals of 12 inches (300 mm). This rainfall will lead to significant, life-threatening flash flooding and river flooding, along with mudslides in areas of higher terrain. Southern Nicaragua and Costa Rica: 3 to 5 inches (75 to 125 mm), with isolated maximum totals of 10 inches (250 mm). SURF: Swells generated by Iota will affect much of the coast of Central America and the Yucatan Peninsula during the next day or so. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 600 PM CST. Next complete advisory at 900 PM CST. $$ Forecaster Blake
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Tropical Storm Iota Forecast Advisory Number 18
2020-11-17 21:41:05| National Hurricane Center (Atlantic)
Issued at 2100 UTC TUE NOV 17 2020 000 WTNT21 KNHC 172040 TCMAT1 TROPICAL STORM IOTA FORECAST/ADVISORY NUMBER 18 NWS NATIONAL HURRICANE CENTER MIAMI FL AL312020 2100 UTC TUE NOV 17 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF NICARAGUA HAS DISCONTINUED THE TROPICAL STORM WARNING FOR THE EAST COAST OF NICARAGUA FROM BLUEFIELDS NORTHWARD TO THE BORDER WITH HONDURAS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE COAST OF HONDURAS * BAY ISLANDS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. TROPICAL STORM CENTER LOCATED NEAR 13.7N 86.2W AT 17/2100Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 20NE 20SE 0SW 20NW. 34 KT.......170NE 90SE 50SW 170NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 13.7N 86.2W AT 17/2100Z AT 17/1800Z CENTER WAS LOCATED NEAR 13.7N 85.7W FORECAST VALID 18/0600Z 13.6N 87.8W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 18/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.7N 86.2W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPAT1...AT 18/0000Z NEXT ADVISORY AT 18/0300Z $$ FORECASTER BLAKE
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Tropical Storm Iota Graphics
2020-11-17 18:38:51| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Tue, 17 Nov 2020 17:38:51 GMT Wind Speed Probabilities last updated Tue, 17 Nov 2020 15:24:25 GMT
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