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日期 | 时间 | 类别 | 风速 | 气压 |
---|---|---|---|---|
UTC | 节 km/h mph | 毫巴 | ||
Aug 21 | 00:00 | L | 29 | |
Aug 20 | 00:00 | L | 29 | |
Aug 19 | 00:00 | L | 29 | |
Aug 18 | 12:00 | L | 29 | |
Aug 18 | 00:00 | D | 35 | |
Aug 17 | 12:00 | D | 35 | |
Aug 17 | 00:00 | S | 40 | |
Aug 16 | 12:00 | S | 40 | |
Aug 16 | 00:00 | S | 46 | 1008 |
Aug 15 | 18:00 | S | 46 | 1008 |
Aug 15 | 12:00 | S | 46 | 1008 |
Aug 15 | 06:00 | S | 46 | 1005 |
Aug 15 | 00:00 | S | 46 | 1005 |
Aug 14 | 18:00 | S | 40 | 1004 |
Aug 14 | 12:00 | S | 40 | 1006 |
Aug 14 | 06:00 | S | 40 | 1006 |
Aug 14 | 00:00 | S | 46 | 1005 |
Aug 13 | 18:00 | S | 46 | 1005 |
Aug 13 | 12:00 | S | 46 | 1005 |
Aug 13 | 06:00 | D | 35 | 1007 |
Aug 13 | 00:00 | D | 35 | 1007 |
Aug 12 | 18:00 | D | 35 | 1007 |
Aug 12 | 12:00 | D | 35 | 1007 |
Aug 12 | 06:00 | D | 35 | 1008 |
Aug 12 | 00:00 | D | 35 | 1008 |
Aug 11 | 18:00 | D | 35 | 1008 |
Aug 11 | 12:00 | L | 35 | 1008 |
Aug 11 | 06:00 | L | 35 | 1008 |
Aug 11 | 00:00 | L | 29 | 1009 |
Aug 10 | 18:00 | L | 29 | 1009 |
Aug 10 | 12:00 | B | 29 | 1009 |
Aug 10 | 06:00 | B | 29 | 1009 |
Aug 10 | 00:00 | B | 29 | 1009 |
Aug 9 | 18:00 | B | 29 | 1009 |
Aug 9 | 12:00 | B | 29 | 1009 |
Aug 9 | 06:00 | B | 29 | |
Aug 9 | 00:00 | B | 23 | |
Aug 8 | 18:00 | B | 23 | |
Aug 8 | 12:00 | B | 23 |
最后修改:
Josephine is passing far enough to the northeast of the Leeward Islands to prevent major impacts. However, interests there should continue to monitor its progress until the storm has passed north of that area.
Locally heavy rainfall is possible in the northern Leeward Islands, the Virgin Islands, and Puerto Rico as Josephine passes by to the northeast. Isolated minor flooding is possible in Puerto Rico through Monday.
An Air Force Reserve reconnaissance aircraft investigating Josephine this evening manages to find a barely close low-level circulation center that was displaced about 90 nautical miles to the west of the edge of the southernmost burst of deep convection. Maximum flight-level and surface were likely missed since the aircraft did not fly through the strongest convection. Thus, the intensity is being maintained at 40 knots based on continuity and a blend of subjective and objective satellite classifications.
The initial motion is west-northwestward or an uncertain 300/13 knots. Due to Josephine's severely sheared state, the system could open up into a sharp tropical wave at any time during the next 36 hours, which complicates determining a forecast track. For now, it will be assumed that there will be some identifiable low-level vorticity feature that will serve as a proxy center for Josephine or its remnants, which are forecast to continue to move west-northwestward along the southwestern periphery of a deep-layer subtropical ridge. Thereafter, the cyclone is expected to recurve to the north and north-northeast through a break in the ridge that is forecast to develop southwest of Bermuda in 48 hours or so, with at least the remnants passing near Bermuda in about 120 hours. The NHC official forecast track lies close to the previous advisory track and the tightly-clustered simple- and corrected-consensus models.
Josephine is expected to remain in an environment of moderate to strong westerly shear for at least the next 48-60 hours, followed by sharply decreasing shear conditions thereafter. For the next two days or so, however, Josephine is forecast to weaken owing to the strong shear conditions and surrounding dry mid-level air, with the possibility of the tropical storm degenerating into an open wave at any time. If the remnant vorticity can manage to remain intact through a deep enough layer of the troposphere, then some regeneration could occur in the 72-120 hour time when the vertical shear/mid-level moisture are forecast to decrease/increase significantly. However, it still remains unclear at this time whether there will be enough remnant circulation to take advantage of those more favorable conditions.
Information provided by NHC.