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06L.Fred 登陸美國佛州 深入內陸 轉化溫氣

簽到天數: 1650 天

[LV.Master]伴壇終老

老農民版夜神月|2021-8-20 05:48 | 顯示全部樓層
06L_BAND01 (1).gif
由於正影響美國東北部,WPC持續對其進行發報工作
495
WTNT31 KWNH 192100
TCPAT1

BULLETIN
Post-Tropical Cyclone Fred Advisory Number  41
NWS Weather Prediction Center College Park MD   AL062021
500 PM EDT Thu Aug 19 2021

...POST-TROPICAL CYCLONE FRED WILL MOVE TO THE COAST OF MAINE
THROUGH EARLY FRIDAY...


SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...43.0N 72.7W
ABOUT 95 MI...155 KM W OF PORTSMOUTH NEW HAMPSHIRE
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES


WATCHES AND WARNINGS
--------------------
A Flash Flood Watch is in effect for portions of western Maine.

DISCUSSION AND OUTLOOK
----------------------
At 500 PM EDT (2100 UTC), the center of Post-Tropical Cyclone Fred
was located near latitude 43.0 North, longitude 72.7 West. The
post-tropical cyclone is moving toward the east-northeast near 14
mph (22 km/h) and this motion is expected to continue tonight.

Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.
Little change in strength is forecast during the next 24 hours.

The estimated minimum central pressure is 1010 mb (29.83 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL:

Post-Tropical Cyclone Fred is expected to produce an additional 1
to 3 inches of rain through tonight across parts of interior New
England, from Vermont and New Hampshire into Maine. This rainfall
could lead to localized flash, urban, small stream and isolated
river flooding impacts.

As Fred continues to transition to an extratropical cyclone and
move toward the Canadian Maritime Provinces, the threat of heavy
rain will end across Maine by early Friday morning.


NEXT ADVISORY
-------------
Next complete advisory at 1100 PM EDT.

$$
Forecaster Carbin

FORECAST POSITIONS AND MAX WINDS

INIT  19/2100Z 43.0N  72.7W   25 KT  30 MPH...POST-TROP/EXTRATROP
12H  20/0600Z 43.7N  70.1W   25 KT  30 MPH...POST-TROP/EXTRATROP
24H  20/1800Z 44.2N  68.6W   25 KT  30 MPH...POST-TROP/EXTRATROP
20210819.1816.gw1.89pct89h89v.06L.FRED.20kts.1011mb.42.7N.75.5W.85pc.jpg sfcplot_06L_latest.png
al062021track.png
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