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Atlantic Tropical Weather Outlook
2021-08-23 19:49:17| National Hurricane Center (Atlantic)
000 ABNT20 KNHC 231749 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Mon Aug 23 2021 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The Weather Prediction Center is issuing Public Advisories on Tropical Depression Henri, located inland over southern New England. A broad low pressure system is producing disorganized showers and thunderstorms over the eastern tropical Atlantic more than 700 miles west of the Cabo Verde Islands. Little development is expected during the next couple of days due to only marginally conducive ocean temperatures. Thereafter, however, some gradual development will be possible through the end of the week while the system moves northwestward at 10 to 15 mph over the central Atlantic. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...medium...40 percent. A tropical wave located over the eastern Caribbean Sea is expected to form a broad area of low pressure over the southwestern Caribbean Sea by late week. Thereafter, environmental conditions are forecast to become favorable for gradual development while the system moves west-northwestward over the northwestern Caribbean Sea. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...medium...40 percent. Another area of disturbed weather has developed in association with a low pressure system located over the far eastern tropical Atlantic more than 500 miles south-southeast of the Cabo Verde Islands. Some slow development will be possible over the next several days while the disturbance moves westward to west-northwestward at around to 15 mph over the eastern tropical Atlantic. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...medium...40 percent. && Public advisories issued by the Weather Prediction Center on Tropical Depression Henri can be found under AWIPS header TCPAT3, WMO header WTNT33 KWNH, and on the web at http://www.wpc.ncep.noaa.gov $$ Forecaster Stewart
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Eastern North Pacific Tropical Weather Outlook
2021-08-23 19:41:44| National Hurricane Center (East Pacific)
000 ABPZ20 KNHC 231741 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Mon Aug 23 2021 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Tropical Storm Marty, located more than 200 miles south-southwest of the southern tip of the Baja California peninsula. An area of disturbed weather centered less than 200 miles south of Guatemala and southeastern Mexico is producing a broad area of disorganized showers and thunderstorms. Environmental conditions are forecast to be favorable for gradual development of this system, and a tropical depression is likely to form by the middle to latter part of this week. The disturbance is expected to move westward to west-northwestward at 10 to 15 mph, remaining offshore the coast of southwestern Mexico through this week. * Formation chance through 48 hours...medium...50 percent. * Formation chance through 5 days...high...90 percent. && Public Advisories on Tropical Storm Marty are issued under WMO header WTPZ33 KNHC and under AWIPS header MIATCPEP3. Forecast/Advisories on Tropical Storm Marty are issued under WMO header WTPZ23 KNHC and under AWIPS header MIATCMEP3. $$ Forecaster Stewart
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Tropical Depression Henri Public Advisory Number 31
2021-08-23 16:58:32| National Hurricane Center (Atlantic)
The NHC has issued its final advisory on this system. Public Advisories from the Weather Prediction Center will provide updates as long as the system remains a flood threat. Issued at 1100 AM EDT Mon Aug 23 2021
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Tropical Storm Marty Graphics
2021-08-23 16:33:37| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Mon, 23 Aug 2021 14:33:37 GMT Wind Speed Probabilities last updated Mon, 23 Aug 2021 15:28:16 GMT
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Tropical Storm Marty Wind Speed Probabilities Number 2
2021-08-23 16:32:48| National Hurricane Center (East Pacific)
Issued at 1500 UTC MON AUG 23 2021 571 FOPZ13 KNHC 231432 PWSEP3 TROPICAL STORM MARTY WIND SPEED PROBABILITIES NUMBER 2 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132021 1500 UTC MON AUG 23 2021 AT 1500Z THE CENTER OF TROPICAL STORM MARTY WAS LOCATED NEAR LATITUDE 20.5 NORTH...LONGITUDE 112.4 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 35 KTS...40 MPH...65 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 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 12Z 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 12Z MON 00Z TUE 12Z TUE 00Z WED 12Z WED 12Z THU 12Z FRI PERIODS TO TO TO TO TO TO TO 00Z TUE 12Z TUE 00Z WED 12Z WED 12Z THU 12Z FRI 12Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT ISLA CLARION 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) 20N 115W 34 53 8(61) X(61) X(61) X(61) X(61) X(61) 20N 115W 50 1 3( 4) X( 4) X( 4) X( 4) X( 4) X( 4) 20N 120W 34 X 3( 3) 16(19) 7(26) X(26) X(26) X(26) 20N 120W 50 X X( X) 3( 3) 2( 5) X( 5) X( 5) X( 5) 20N 125W 34 X X( X) X( X) 1( 1) 5( 6) 1( 7) X( 7) $$ FORECASTER STEWART
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