Terminology Used In CNRSE Warnings
TROPICAL WIND ADVISORY -
Winds 34 - 49 knots (associated with a tropical system).
TROPICAL CYCLONE -
Tropical system with winds 50 knots or greater.
Thunderstorms are forecast to impact the warning area with gusty winds with velocities less than 50 knots. Lightning and thunder can be expected; hail, if any, less than 3/4 inch in diameter.
SEVERE THUNDERSTORM -
Severe thunderstorms with wind gusts 50 knots or greater. Lightning, thunder and hail, if any, 3/4 inch or greater in diameter are forecast to impact the warning area.
Tornadoes have been sighted or detected by RADAR in or adjacent to the warning area, or have a strong potential to develop in the warning area.
SMALL CRAFT WARNING -
Winds up to 33 knots (including gusts). The lower threshold for issuing such warning is set by local area authority.
GALE WARNING -
Sustained winds between 34 and 47 knots.
STORM WARNING -
Sustained winds of 48 knots or greater.