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Post-Tropical Cyclone Blanca Information by ATCF XML Prototype
2021-06-04 10:32:09| Tropical Depression LIDIA
Issued at Fri, 04 Jun 2021 08:32:09 GMT. This is only a prototype and the file format may change without notice.
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Post-Tropical Cyclone Ana Forecast Discussion Number 8
2021-05-24 04:42:08| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Sun May 23 2021 660 WTNT41 KNHC 240242 TCDAT1 Post-Tropical Cyclone Ana Discussion Number 8 NWS National Hurricane Center Miami FL AL012021 1100 PM AST Sun May 23 2021 Ana has mainly remained devoid of deep and organized convection today, with only a couple of short-lived bursts noted in satellite imagery earlier this morning. The cyclone has been an exposed cloud swirl through the afternoon and evening hours, and Ana continues moving into a hostile environment characterized by cool sea-surface temperatures, dry mid-level air, and increasing vertical wind shear. Thus, Ana has become a post-tropical cyclone, and this will be the final NHC advisory on the system. Although a recent ASCAT-B pass missed the center of post-tropical Ana, it still shows an area of 30-35 kt winds in the southeast quadrant of the low near the edge of the swath. Therefore, the initial intensity is set at 35 kt, with the slightly stronger winds likely just a product of the accelerating forward speed of the system. The post-tropical cyclone is embedded in deep-layer southwesterly flow and will continue to accelerate northeastward until it opens up into a trough and becomes absorbed by a strong baroclinic zone approaching from the northwest on Monday. Additional information on post-tropical Ana can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php FORECAST POSITIONS AND MAX WINDS INIT 24/0300Z 38.3N 55.2W 35 KT 40 MPH...POST-TROPICAL 12H 24/1200Z 41.0N 50.5W 30 KT 35 MPH...POST-TROP/REMNT LOW 24H 25/0000Z...DISSIPATED $$ Forecaster Reinhart/Brown
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Post-Tropical Cyclone Ana Graphics
2021-05-24 04:40:15| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Mon, 24 May 2021 02:40:15 GMT Wind Speed Probabilities last updated Mon, 24 May 2021 03:21:40 GMT
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Summary for Post-Tropical Cyclone Ana (AT1/AL012021)
2021-05-24 04:40:13| National Hurricane Center (Atlantic)
...ANA BECOMES A POST-TROPICAL CYCLONE... ...THIS IS THE LAST NHC ADVISORY ON ANA... As of 11:00 PM AST Sun May 23 the center of Ana was located near 38.3, -55.2 with movement NE at 28 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 40 mph.
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Post-Tropical Cyclone Ana Public Advisory Number 8
2021-05-24 04:40:13| National Hurricane Center (Atlantic)
Issued at 1100 PM AST Sun May 23 2021 000 WTNT31 KNHC 240240 TCPAT1 BULLETIN Post-Tropical Cyclone Ana Advisory Number 8 NWS National Hurricane Center Miami FL AL012021 1100 PM AST Sun May 23 2021 ...ANA BECOMES A POST-TROPICAL CYCLONE... ...THIS IS THE LAST NHC ADVISORY ON ANA... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...38.3N 55.2W ABOUT 680 MI...1095 KM NE OF BERMUDA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 28 MPH...44 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Post-Tropical Cyclone Ana was located near latitude 38.3 North, longitude 55.2 West. The post-tropical cyclone is moving toward the northeast near 28 mph (44 km/h), and a northeastward motion with an increase in forward speed is expected through Monday. Satellite-derived wind data indicate that maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Little change in strength is forecast overnight, and Ana is expected to dissipate on Monday. Tropical-storm-force winds extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on Ana. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Reinhart/Brown
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