ABNT30 KNHC 011230
TWSAT 

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM EDT Wed Dec 1 2021

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

No tropical cyclones formed in the basin during November. However, 
Tropical Storm Wanda continued from the end of October through the 
first seven days of November.  Based on a 30-year climatology 
(1991-2020), a tropical storm forms in November every one to two 
years.

Overall, the 2021 Atlantic hurricane season featured above normal 
activity. Twenty-one named storms formed, of which seven became 
hurricanes and four became major hurricanes - category 3 or higher 
on the Saffir-Simpson Hurricane Wind Scale.  This compares to the 
long-term averages of 14 named storms, 7 hurricanes, and 3 major 
hurricanes. In terms of Accumulated Cyclone Energy (ACE), which 
measures the strength and duration of tropical storms and 
hurricanes, activity in the basin in 2021 was also above normal, 
about 20 percent above the long-term (1991-2020) mean.

Reports on individual cyclones, when completed, are available at
the National Hurricane Center website at
www.hurricanes.gov/data/tcr/index.php?season=2021&basin=atl

Summary Table

Name                  Dates          Max Wind (mph)
---------------------------------------------------
TS  Ana              22-23 May            45*
TS  Bill             14-15 Jun            65*
TS  Claudette        19-22 Jun            45
TS  Danny            27-29 Jun            45*
H   Elsa              1- 9 Jul            85
TS  Fred             11-17 Aug            65*
MH  Grace            13-21 Aug           125
H   Henri            16-23 Aug            75
MH  Ida          26 Aug- 1 Sep           150
TS  Kate         28 Aug- 1 Sep            45
TS  Julian           28-30 Aug            60* 
MH  Larry        31 Aug-11 Sep           125
TS  Mindy             8-10 Sep            45
H   Nicholas         12-16 Sep            75
TS  Odette           17-18 Sep            45*
TS  Peter            19-22 Sep            50
TS  Rose             19-23 Sep            50
MH  Sam          22 Sep- 5 Oct           150
STS Teresa           24-25 Sep            45
TS  Victor       29 Sep- 4 Oct            65
TS  Wanda        31 Oct- 7 Nov            50
---------------------------------------------------      

* Denotes a storm for which the post-storm analysis is complete.

$$
Hurricane Specialist Unit