NON-PRECIPITATION CONDITIONS
|
ADVISORIES
|
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. |
WIND CHILL ADVISORY
Issued when wind chill values are expected to be in the -35 to -50 degree F range. |
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) |
WATCHES
|
HIGH WIND WATCH
Issued when wind speeds are forecast to meet warning criteria with in the next 24-36 hours. |
WARNINGS
|
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. |
EXCESSIVE HEAT WARNING
An Excessive Heat Warning will be issued with a maximum heat index > 115 with minimum 80. |
WIND CHILL WARNING
Issued when wind chill values are expected to be -50 degrees or less. |
