There are no coastal watches or warnings in effect.

SURF: Swells generated by Larry are expected to reach the Lesser Antilles on Sunday, and will continue to spread westward to portions of the Greater Antilles, the Bahamas, and Bermuda Monday and Tuesday. Significant swells will likely reach the eastern United States coastline after Labor Day. These swells are likely to cause life threatening surf and rip current conditions. Please consult products from your local weather office.

At 1100 AM AST (1500 UTC), the center of Hurricane Larry was located near latitude 16.8 North, longitude 45.8 West. Larry is moving toward the west northwest near 15 mph (24 km/h). A gradually slower west northwest to northwest motion is expected during the next few days. Maximum sustained winds have increased to near 125 mph (205 km/h) with higher gusts. Larry is a category 3 hurricane on the Saffir Simpson Hurricane Wind Scale and additional strengthening is forecast over the next day or two. Larry is expected to remain at major hurricane strength through the early part of next week. Hurricane force winds extend outward up to 45 miles (75 km) from the center and tropical storm force winds extend outward up to 160 miles (260 km). The estimated minimum central pressure is 958 mb (28.29 inches).

Overnight and this morning, Larry appears to have gone through a rather quick eyewall replacement cycle (ERC). The most recent 1000 UTC GMI microwave pass suggests that Larry now has a much larger eye and surrounding eyewall, with less evidence of concentric bands as noted yesterday. On geostationary satellite the larger eye is also becoming apparent on visible and infrared channels, though some left over inner eyewall debris remains. Consistent with the larger eye, an ASCAT-B pass received at 1226 UTC indicated that the 34-, 50-, and 64-kt wind radii have expanded with Larry this morning. While the most recent SAB and TAFB subjective Dvorak intensity estimates have remain at 90 kt and 100 kt respectively, the objective estimates are higher, with an earlier UW-CIMSS SATCON estimate up to 112 kt, though it has recently been adjusted lower. With the eye beginning to clear out on the most recent satellite images, I am favoring the higher objective estimates, bringing Larry up to 110 kt for this advisory.

Larry's track has remained fairly steady toward the west-northwest, but just a touch slower and more poleward with the latest estimated motion at 300/13 kt. This west-northwest motion is expected to continue for the next several days with only a very gradual poleward bend as Larry remains positioned to the south of an expansive mid-level ridge extending westward ahead of Larry's expected path. As has been the case the last several days, the track guidance is in excellent agreement over the next 36-48 hours with more spread becoming apparent thereafter. As discussed yesterday, the increase in spread in the latter portion of the forecast appears to be related to how much mid-level ridging stays north of Larry. The ECMWF and its ensembles maintain more ridging that results in a slower and more westward track, while the GFS and its ensembles place more ridging east of Larry that results in a faster more eastward track. The UKMET favors a solution closer to the ECMWF while the Canadian favors a solution closer to the GFS. For now, the latest NHC track has elected to remain close to the HFIP corrected consensus approach (HCCA) which slightly favors the ECMWF solution over the GFS. This latest track forecast is quite similar to the previous one, but just a touch slower. Based on this forecast, Larry will continue moving across the central Atlantic in the coming days, and be approaching the latitude of Bermuda by the end of the forecast period.

Conditions continue to remain favorable for additional intensification over the next few days, with vertical wind shear remaining under 10 kts, sea-surface temperatures gradually increasing, and mid-level relatively humidity staying fairly moist. However, by 48 hours, Larry will be impinging on the eastern edge of a large upper-level mid-oceanic trough, which could result in an increase in westerly vertical wind shear over the hurricane. However, the models handle Larry's interaction with this synoptic feature differently. The GFS suggests this upper-level trough will fracture to the west fairly quickly, keeping a more favorable upper-level pattern over Larry, while the ECMWF has a stronger trough that takes longer to give way to Larry's upper-level outflow, providing more westerly shear over the hurricane. Additional eyewall replacement cycles are also possible in the coming days, which could result in additional intensity fluctuations that are challenging to predict ahead of time. For now, the latest NHC intensity forecast keeps Larry intensifying over the next 24-36 hours, with only a very gradual decay thereafter due to the somewhat less favorable dynamical environment. The latest intensity forecast remains on the high end of the guidance, noting that there still remain higher outliers making Larry stronger than the 125 kt peak intensity (HAFS-B, COAMPS-TC). Regardless of the details, Larry is expected to remain a large major hurricane through the forecast period.

Significant ocean swells generated by Larry's growing wind field are expected to reach the Lesser Antilles tomorrow, and then spread westward to portions of the Greater Antilles, the Bahamas, and Bermuda on Monday and Tuesday. These swells could cause life-threatening rip currents and high surf conditions. Large swells are also likely to spread to the east coast of the United States by midweek.

Overnight and this morning, Larry appears to have gone through a rather quick eyewall replacement cycle (ERC). The most recent 1000 UTC GMI microwave pass suggests that Larry now has a much larger eye and surrounding eyewall, with less evidence of concentric bands as noted yesterday. On geostationary satellite the larger eye is also becoming apparent on visible and infrared channels, though some left over inner eyewall debris remains. Consistent with the larger eye, an ASCAT-B pass received at 1226 UTC indicated that the 34-, 50-, and 64-kt wind radii have expanded with Larry this morning. While the most recent SAB and TAFB subjective Dvorak intensity estimates have remain at 90 kt and 100 kt respectively, the objective estimates are higher, with an earlier UW-CIMSS SATCON estimate up to 112 kt, though it has recently been adjusted lower. With the eye beginning to clear out on the most recent satellite images, I am favoring the higher objective estimates, bringing Larry up to 110 kt for this advisory.

Larry's track has remained fairly steady toward the west-northwest, but just a touch slower and more poleward with the latest estimated motion at 300/13 kt. This west-northwest motion is expected to continue for the next several days with only a very gradual poleward bend as Larry remains positioned to the south of an expansive mid-level ridge extending westward ahead of Larry's expected path. As has been the case the last several days, the track guidance is in excellent agreement over the next 36-48 hours with more spread becoming apparent thereafter. As discussed yesterday, the increase in spread in the latter portion of the forecast appears to be related to how much mid-level ridging stays north of Larry. The ECMWF and its ensembles maintain more ridging that results in a slower and more westward track, while the GFS and its ensembles place more ridging east of Larry that results in a faster more eastward track. The UKMET favors a solution closer to the ECMWF while the Canadian favors a solution closer to the GFS. For now, the latest NHC track has elected to remain close to the HFIP corrected consensus approach (HCCA) which slightly favors the ECMWF solution over the GFS. This latest track forecast is quite similar to the previous one, but just a touch slower. Based on this forecast, Larry will continue moving across the central Atlantic in the coming days, and be approaching the latitude of Bermuda by the end of the forecast period.

Conditions continue to remain favorable for additional intensification over the next few days, with vertical wind shear remaining under 10 kts, sea-surface temperatures gradually increasing, and mid-level relatively humidity staying fairly moist. However, by 48 hours, Larry will be impinging on the eastern edge of a large upper-level mid-oceanic trough, which could result in an increase in westerly vertical wind shear over the hurricane. However, the models handle Larry's interaction with this synoptic feature differently. The GFS suggests this upper-level trough will fracture to the west fairly quickly, keeping a more favorable upper-level pattern over Larry, while the ECMWF has a stronger trough that takes longer to give way to Larry's upper-level outflow, providing more westerly shear over the hurricane. Additional eyewall replacement cycles are also possible in the coming days, which could result in additional intensity fluctuations that are challenging to predict ahead of time. For now, the latest NHC intensity forecast keeps Larry intensifying over the next 24-36 hours, with only a very gradual decay thereafter due to the somewhat less favorable dynamical environment. The latest intensity forecast remains on the high end of the guidance, noting that there still remain higher outliers making Larry stronger than the 125 kt peak intensity (HAFS-B, COAMPS-TC). Regardless of the details, Larry is expected to remain a large major hurricane through the forecast period.

Significant ocean swells generated by Larry's growing wind field are expected to reach the Lesser Antilles tomorrow, and then spread westward to portions of the Greater Antilles, the Bahamas, and Bermuda on Monday and Tuesday. These swells could cause life-threatening rip currents and high surf conditions. Large swells are also likely to spread to the east coast of the United States by midweek.