Saffir-Simpson Hurricane Scale

Category	Wind Speed	Storm Surge
	mph	ft
5	≥157	>18
4	130–156	13–18
3	111–129	9–12
2	96–110	6–8
1	74–95	4–5
Additional Classifications
Tropical Storm	39–73	0–3
Tropical Depression	0–38	0

The Saffir-Simpson Hurricane Scale is a classification used for most Western Hemisphere tropical cyclones that exceed the intensities of "tropical depressions" and "tropical storms", and thereby become hurricanes. Source: Intellicast

Hurricane Season 101

The official Atlantic Basin Hurricane Season runs from June 1st to November 30th. A tropical cyclone is a warm-core, low pressure system without any “front” attached. It develops over tropical or subtropical waters, and has an organized circulation. Depending upon location, tropical cyclones have different names around the world. The Tropical Cyclones we track in the Atlantic basin are called Tropical Depressions, Tropical Storms and Hurricanes! Atlantic Basin Tropical Cyclones are classified as follows: Tropical Depression: Organized system of clouds and thunderstorms with defined surface circulation and max sustained winds of 38 mph or less. Tropical Storm: Organized system of strong thunderstorms with a defined surface circulation and maximum sustained winds of 39-73 mph. Hurricane: Intense tropical weather system of strong thunderstorms with a well-defined surface circulation. A Hurricane has max sustained winds of 74 mph or higher!

The difference between Tropical Storm and Hurricane Watches, Warnings, Advisories and Outlooks

Warnings:Listen closely to instructions from local officials on TV, radio, cell phones or other computers for instructions from local officials.Evacuate immediately if told to do so.

Storm Surge Warning: There is a danger of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area. This is generally within 36 hours. If you are under a storm surge warning, check for evacuation orders from your local officials.
Hurricane Warning: Hurricane conditions (sustained winds of 74 mph or greater) are expected somewhere within the specified area. NHC issues a hurricane warning 36 hours in advance of tropical storm-force winds to give you time to complete your preparations. All preparations should be complete. Evacuate immediately if so ordered.
Tropical Storm Warning: Tropical storm conditions (sustained winds of 39 to 73 mph) are expected within your area within 36 hours.
Extreme Wind Warning: Extreme sustained winds of a major hurricane (115 mph or greater), usually associated with the eyewall, are expected to begin within an hour. Take immediate shelter in the interior portion of a well-built structure.

Please note that hurricane and tropical storm watches and warnings for winds on land as well as storm surge watches and warnings can be issued for storms that the NWS believes will become tropical cyclones but have not yet attained all of the characteristics of a tropical cyclone (i.e., a closed low-level circulation, sustained thunderstorm activity, etc.). In these cases, the forecast conditions on land warrant alerting the public. These storms are referred to as “potential tropical cyclones” by the NWS. Hurricane, tropical storm, and storm surge watches and warnings can also be issued for storms that have lost some or all of their tropical cyclone characteristics, but continue to produce dangerous conditions. These storms are called “post-tropical cyclones” by the NWS. Watches: Listen closely to instructions from local officials on TV, radio, cell phones or other computers for instructions from local officials. Evacuate if told to do so.

Storm Surge Watch: Storm here is a possibility of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 48 hours. If you are under a storm surge watch, check for evacuation orders from your local officials.
Hurricane Watch: Huriricane conditions (sustained winds of 74 mph or greater) are possible within your area. Because it may not be safe to prepare for a hurricane once winds reach tropical storm force, The NHC issues hurricane watches 48 hours before it anticipates tropical storm-force winds.
Tropical Storm Watch: Tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the specified area within 48 hours.

Advisories:

Tropical Cyclone Public Advisory:The Tropical Cyclone Public Advisory contains a list of all current coastal watches and warnings associated with an ongoing or potential tropical cyclone, a post-tropical cyclone, or a subtropical cyclone. It also provides the cyclone position, maximum sustained winds, current motion, and a description of the hazards associated with the storm.
Tropical Cyclone Track Forecast Cone:This graphic shows areas under tropical storm and hurricane watches and warnings, the current position of the center of the storm, and its predicted track. Forecast uncertainty is conveyed on the graphic by a “cone” (white and stippled areas) drawn such that the center of the storm will remain within the cone about 60 to 70 percent of the time. Remember, the effects of a tropical cyclone can span hundreds of miles. Areas well outside of the cone often experience hazards such as tornadoes or inland flooding from heavy rain.

Outlooks:

Tropical Weather Outlook:The Tropical Weather Outlook is a discussion of significant areas of disturbed weather and their potential for development during the next 5 days. The Outlook includes a categorical forecast of the probability of tropical cyclone formation during the first 48 hours and during the entire 5-day forecast period. You can also find graphical versions of the 2-day and 5-day Outlook here

Be sure to read up on tons of more information on Hurricane knowledge, preparedness, statistics and history under the menu on the left hand side of the page! Here are your 2020 Hurricane Season Names: Arthur, Bertha, Cristobal, Dolly, Edouard, Fay, Gonzalo, Hanna, Isaias, Josephine ,Kyle, Laura, Marco, Nana, Omar, Paulette, Rene, Sally, Teddy, Vicky and Wilfred!!!

Tracking Lisa – 2022 Atlantic Hurricane Season

NHC Public Advisory on Lisa

Sat, 05 Nov 2022 14:43:51 +0000: Atlantic Remnants Of Lisa Advisory Number 24 - Atlantic Remnants Of Lisa Advisory Number 24

000
WTNT35 KNHC 051443
TCPAT5

BULLETIN
Remnants Of Lisa Advisory Number 24
NWS National Hurricane Center Miami FL AL152022
1000 AM CDT Sat Nov 05 2022

...LISA DISSIPATES OVER THE SOUTHWESTERN GULF OF MEXICO...
...THIS IS THE LAST ADVISORY...

SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...21.2N 95.2W
ABOUT 155 MI...245 KM NNE OF VERACRUZ MEXICO
MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H
PRESENT MOVEMENT...N OR 5 DEGREES AT 5 MPH...7 KM/H
MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES

WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK
----------------------
At 1000 AM CDT (1500 UTC), the remnants of Lisa were located near
latitude 21.2 North, longitude 95.2 West. The remnants are moving
toward the north near 5 mph (7 km/h). The remnants are forecast to
meander over the southwestern Gulf of Mexico this weekend.

Maximum sustained winds are near 25 mph (35 km/h) with higher gusts.
Continued weakening is expected during the next day or so.

The estimated minimum central pressure is 1008 mb (29.77 inches).

HAZARDS AFFECTING LAND
----------------------
None

NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on this system.

$$
Forecaster Brown

NHC Forecast Advisory on Lisa

Sat, 05 Nov 2022 14:43:21 +0000: Atlantic Remnants of LISA Forecast/Advisory Number... - Atlantic Remnants of LISA Forecast/Advisory Number 24 NWS NATIONAL Hurricane CENTER MIAMI FL AL152022 1500 UTC SAT NOV 05 2022 CHANGES IN WATCHES AND WARNINGS WITH THIS Advisory... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. REMNANTS OF CENTER LOCATED NEAR 21.2N 95.2W AT 05/1500Z POSITION ACCURATE WITHIN 25 NM PRESENT MOVEMENT TOWARD THE NORTH OR 5 DEGREES AT 4 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 20 KT WITH GUSTS TO 30 KT. 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 21.2N 95.2W AT 05/1500Z AT 05/1200Z CENTER WAS LOCATED NEAR 20.8N 95.2W FORECAST VALID 06/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.2N 95.2W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. $$ FORECASTER BROWN

000
WTNT25 KNHC 051443
TCMAT5

REMNANTS OF LISA FORECAST/ADVISORY NUMBER 24
NWS NATIONAL HURRICANE CENTER MIAMI FL AL152022
1500 UTC SAT NOV 05 2022

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

REMNANTS OF CENTER LOCATED NEAR 21.2N 95.2W AT 05/1500Z
POSITION ACCURATE WITHIN 25 NM

PRESENT MOVEMENT TOWARD THE NORTH OR 5 DEGREES AT 4 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB
MAX SUSTAINED WINDS 20 KT WITH GUSTS TO 30 KT.
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 21.2N 95.2W AT 05/1500Z
AT 05/1200Z CENTER WAS LOCATED NEAR 20.8N 95.2W

FORECAST VALID 06/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.2N 95.2W

THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE
CENTER ON THIS SYSTEM.

$$
FORECASTER BROWN

NHC Discussion on Lisa

Sat, 05 Nov 2022 14:44:22 +0000: Atlantic Remnants Of Lisa Discussion Number 24 - Atlantic Remnants Of Lisa Discussion Number 24

000
WTNT45 KNHC 051444
TCDAT5

Remnants Of Lisa Discussion Number 24
NWS National Hurricane Center Miami FL AL152022
1000 AM CDT Sat Nov 05 2022

Although the system continues to produce some limited bursts of
convection, visible satellite imagery shows that the circulation has
become weak and ill defined. The system lacks a well-defined
center and has not had any significant organized deep convection
in about 24 hours, therefore this will be final advisory on Lisa.
The remnants are forecast to meander over the southwestern Gulf of
Mexico during the next day or two, but strong vertical wind shear
and dry mid-level air are expected to prevent any resurgence.

FORECAST POSITIONS AND MAX WINDS

INIT 05/1500Z 21.2N 95.2W 20 KT 25 MPH
12H 06/0000Z...DISSIPATED

$$
Forecaster Brown

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