**[Winter Weather Criteria Quick Reference Table]{.underline}**

+------------+-----------+-------------------+-----------------------+
|            | Issuance  | 12 hour criteria  | 24 hour criteria      |
|            | Time      |                   |                       |
+------------+-----------+-------------------+-----------------------+
| **Winter   | 2^nd^,    | Issued for        |                       |
| Storm      | 3^rd^,    | criteria meeting  |                       |
| Watch**    | and 4^th^ | Winter Storm      |                       |
|            | period    | Warning criteria  |                       |
+------------+-----------+-------------------+-----------------------+
| **Winter   | 1^st^ and | UT Dixie/Zion:    | UT Dixie/Zion: 4"+    |
| Storm      | 2^nd^     | 2"+               |                       |
| Warning**  | period    |                   | Valleys/WY: 9"+       |
|            |           | Valleys/WY: 6"+   |                       |
|            |           |                   | Mtn Valleys: 12"+     |
|            |           | Mtn Valleys: 8"+  |                       |
|            |           |                   | Mountains: 18"+       |
|            |           | Mountains: 12"+   |                       |
+------------+-----------+-------------------+-----------------------+
| **Winter   | 1^st^ and | UT Dixie/Zion: 1" | UT Dixie/Zion: 2 to   |
| Weather    | 2^nd^     |                   | 3"                    |
| Advisory** | period    | Valleys/WY: 3 to  |                       |
|            |           | 5"                | Valleys/WY: 4 to 8"   |
|            |           |                   |                       |
|            |           | Mtn Valleys: 4 to | Mtn Valleys: 6 to 11" |
|            |           | 7"\               |                       |
|            |           | Mountains: 6 to   | Mountains: 7 to 17"   |
|            |           | 11"               |                       |
+------------+-----------+-------------------+-----------------------+
| **Blizzard | 2^nd^,    | Issued for        |                       |
| Watch**    | 3^rd^,    | criteria meeting  |                       |
|            | and 4^th^ | Blizzard Warning  |                       |
|            | period    | criteria          |                       |
+------------+-----------+-------------------+-----------------------+
| **Blizzard | 1^st^ and | Conditions        |                       |
| Warning**  | 2^nd^     | lasting 3 hours   |                       |
|            | period    | or more including |                       |
|            |           | sustained winds   |                       |
|            |           | or gusts above 35 |                       |
|            |           | mph with          |                       |
|            |           | considerable      |                       |
|            |           | blowing and       |                       |
|            |           | drifting of snow  |                       |
|            |           | with visibilities |                       |
|            |           | \<¼ mile          |                       |
+------------+-----------+-------------------+-----------------------+
| **Lake     | Mainly    | Issued for        |                       |
| Effect     | 2^nd^ or  | criteria meeting  |                       |
| Snow       | 3^rd^     | Lake Effect Snow  |                       |
| Watch**    | period    | Warning           |                       |
|            |           | **(valleys        |                       |
|            |           | only)**           |                       |
+------------+-----------+-------------------+-----------------------+
| **Lake     | Typically | 6" or more        | 9" or more **(valleys |
| Effect     | within 12 | **(valleys        | only)**               |
| Snow       | hours of  | only)**           |                       |
| Warning**  | event     |                   |                       |
+------------+-----------+-------------------+-----------------------+
| **Wind     | 2^nd^,    | Issued for        |                       |
| Chill      | 3^rd^,    | criteria meeting  |                       |
| Watch**    | and 4^th^ | Wind Chill        |                       |
|            | period    | Warning           |                       |
+------------+-----------+-------------------+-----------------------+
| **Wind     | 1^st^ and | Wind chills of    |                       |
| Chill      | 2^nd^     | -30 F or less and |                       |
| Warning**  | period    | winds \>10 mph    |                       |
|            |           | for 3 hours or    |                       |
|            |           | more              |                       |
+------------+-----------+-------------------+-----------------------+
|            |           |                   |                       |
+------------+-----------+-------------------+-----------------------+
| **Lake     | Typically | 3 to 5"           | 4 to 8" **(valleys    |
| Effect     | within 12 | **(valleys        | only)**               |
| Snow       | hours of  | only)**           |                       |
| Advisory** | event     |                   |                       |
+------------+-----------+-------------------+-----------------------+
| **Ice      | 1^st^ and | ¼" or more ice    |                       |
| Storm      | 2^nd^     | accumulation      |                       |
| Warning**  | period    |                   |                       |
+------------+-----------+-------------------+-----------------------+
| **Freezing | 1^st^ and | Ice accumulation  |                       |
| Ra         | 2^nd^     | less than ¼ inch, |                       |
| in/Drizzle | period    | particularly when |                       |
| Advisory** |           | accumulation of   |                       |
|            |           | ice is impacting  |                       |
|            |           | area roads and    |                       |
|            |           | travel            |                       |
+------------+-----------+-------------------+-----------------------+