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Non-Precipitation
Advisories / Watches / Warnings


WIND CHILL ADVISORY

Issued when wind chill values are expected to be in the -35 to -50 degree F range.

WIND CHILL WARNING

Issued when wind chill values are expected to be -50 degrees or less.

HIGH WIND WATCH

Issued when wind speeds are forecast to meet warning criteria with in the next 24-36 hours.

HIGH WIND WARNING

Issued for sustained wind speeds of 40 MPH or greater lasting for 1 hour or longer, OR winds of 58 MPH or greater for any duration of time.

WIND ADVISORY

Issued for sustained winds 31-39 mph for at least 1 hour; OR any gusts to 46-57 mph.

DENSE FOG ADVISORY

Dense Fog Advisories may be issued for visibilities 1/4 mile or below. These Advisories will usually be posted for widespread events, not small local events such as valley fog in the summer.

HEAT ADVISORY

A Heat Advisory will be issued when the Heat Index is expected to reach 105 with a nighttime low not below 80.

EXCESSIVE HEAT WARNING

An Excessive Heat Warning will be issued with a maximum heat index > 115 with minimum 80.

FROST ADVISORY

A Frost Advisory will be issued when widespread frost is forecast during the growing season (temperatures do not necessarily have to be 32 for frost).

FREEZE ADVISORY

A Freeze Advisory will be issued for widespread temperatures of 32 or colder are forecast during the growing season (frost may or may not occur)
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