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- Sun, 07 Nov 2021 14:45:40 +0000: Atlantic Post-Tropical Cyclone Wanda Advisory Number 31 - Atlantic Post-Tropical Cyclone Wanda Advisory Number 31
000
WTNT31 KNHC 071445
TCPAT1
BULLETIN
Post-Tropical Cyclone Wanda Advisory Number 31
NWS National Hurricane Center Miami FL AL212021
300 PM GMT Sun Nov 07 2021
...WANDA BECOMES A POST-TROPICAL CYCLONE...
...THIS IS THE FINAL ADVISORY...
SUMMARY OF 300 PM GMT...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...40.2N 33.5W
ABOUT 380 MI...610 KM WNW OF THE AZORES
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NE OR 45 DEGREES AT 25 MPH...41 KM/H
MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES
WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
----------------------
At 300 PM GMT (1500 UTC), the center of Post-Tropical Cyclone Wanda
was located near latitude 40.2 North, longitude 33.5 West. The
post-tropical cyclone is moving toward the northeast near 25 mph
(41 km/h) and this motion is expected to continue with further
acceleration through Monday.
Maximum sustained winds are near 40 mph (65 km/h) with higher gusts.
The post-tropical cyclone is forecast to merge with a frontal system
tonight and dissipate by Monday.
Gale-force 34-kt winds extend outward up to 70 miles (110 km) from
the center.
The estimated minimum central pressure is 1003 mb (29.62 inches).
HAZARDS AFFECTING LAND
----------------------
None.
NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Wanda. Additional information on this system can be found
in High Seas Forecasts issued by Meteo France under WMO header
FQNT50 LFPW and available on the web at
www.meteofrance.com/previsions-meteo-marine/bulletin/grandlarge/
metarea2.
$$
Forecaster Papin
- Sun, 07 Nov 2021 14:44:40 +0000: Atlantic Post-Tropical Cyclone WANDA Forecast/Advi... - Atlantic Post-Tropical Cyclone WANDA Forecast/Advisory Number 31 NWS NATIONAL Hurricane CENTER MIAMI FL AL212021 1500 UTC SUN NOV 07 2021 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL Cyclone CENTER LOCATED NEAR 40.2N 33.5W AT 07/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 22 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 0NE 60SE 0SW 0NW. 12 FT SEAS.. 80NE 120SE 90SW 60NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 40.2N 33.5W AT 07/1500Z AT 07/1200Z CENTER WAS LOCATED NEAR 39.2N 34.9W FORECAST VALID 08/0000Z 43.5N 29.1W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 0NE 80SE 0SW 0NW. FORECAST VALID 08/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.2N 33.5W THIS IS THE LAST FORECAST/Advisory ISSUED BY THE NATIONAL HURRICANE CENTER ON WANDA. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY METEO FRANCE...UNDER WMO HEADER FQNT50 LFPW. $$ FORECASTER PAPIN
000
WTNT21 KNHC 071444
TCMAT1
POST-TROPICAL CYCLONE WANDA FORECAST/ADVISORY NUMBER 31
NWS NATIONAL HURRICANE CENTER MIAMI FL AL212021
1500 UTC SUN NOV 07 2021
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
POST-TROPICAL CYCLONE CENTER LOCATED NEAR 40.2N 33.5W AT 07/1500Z
POSITION ACCURATE WITHIN 30 NM
PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 22 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT....... 0NE 60SE 0SW 0NW.
12 FT SEAS.. 80NE 120SE 90SW 60NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
REPEAT...CENTER LOCATED NEAR 40.2N 33.5W AT 07/1500Z
AT 07/1200Z CENTER WAS LOCATED NEAR 39.2N 34.9W
FORECAST VALID 08/0000Z 43.5N 29.1W...POST-TROP/EXTRATROP
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 80SE 0SW 0NW.
FORECAST VALID 08/1200Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.2N 33.5W
THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON WANDA. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE
FOUND IN HIGH SEAS FORECASTS ISSUED BY METEO FRANCE...UNDER WMO
HEADER FQNT50 LFPW.
$$
FORECASTER PAPIN
- Sun, 07 Nov 2021 14:47:10 +0000: Atlantic Post-Tropical Cyclone Wanda Discussion Number 31 - Atlantic Post-Tropical Cyclone Wanda Discussion Number 31
000
WTNT41 KNHC 071447
TCDAT1
Post-Tropical Cyclone Wanda Discussion Number 31
NWS National Hurricane Center Miami FL AL212021
300 PM GMT Sun Nov 07 2021
Wanda is no longer generating deep convection in association with
its low-level circulation. In fact, most of the colder cloud tops
seen on satellite over the center right now are actually upper-level
cirrus associated with a cold frontal boundary part of a
larger mid-latitude cyclone southeast of Greenland. In addition, an
1156 UTC ASCAT-B pass over Wanda's circulation shows that the north
side is beginning to open up into a trough as the cold front is
encroaching on the system. These above factors suggest that Wanda is
no longer a tropical cyclone, and the system is now classified as a
post-tropical low as of this advisory. The winds remain 35-kt based
on the peak wind retrieval of 33-kt from the scatterometer data on
the southeast side of the circulation.
The system has been accelerating to the northeast with the latest
estimated motion at 045/22 kt. The post-tropical cyclone should
continue to accelerate to the northeast until it merges with
the baroclinic zone approaching it. A 12 hour point is provided for
continuity and to indicate the transition to an extratropical
cyclone, though its quite possible the system will be fully
absorbed by the frontal boundary by then. The track guidance at
12 hours is tightly clustered, and the NHC track forecast at that
time fame follows the consensus aids closely.
This is the last NHC advisory on Wanda. Additional information on
this system can be found in High Seas Forecasts issued by Meteo
France under WMO header FQNT50 LFPW and available on the web at
www.meteofrance.com/previsions-meteo-marine/bulletin/grandlarge/
metarea2.
FORECAST POSITIONS AND MAX WINDS
INIT 07/1500Z 40.2N 33.5W 35 KT 40 MPH...POST-TROPICAL
12H 08/0000Z 43.5N 29.1W 35 KT 40 MPH...POST-TROP/EXTRATROP
24H 08/1200Z...DISSIPATED
$$
Forecaster Papin
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