Proposed Future High Seas Forecast Example

FZNT01 KWBC 060545

HSFAT1

High Seas Forecast for Metarea IV

Issued by U.S. National Weather Service

0545 UTC Mon Feb 06 2023

Areas describe the maximum extent of conditions over ice free waters during a 24 hour period

Onset timing provided for conditions starting 3 hours or more into the period

SECURITE 

Part I: Warnings

Valid: 24 Hours Starting 0600 UTC 2023 Feb 06

For details see WHNT01 KWBC HSWATL

HSWATL Issued 0330 UTC Feb 06

1. Hurricane Force Wind Warning IV-00084-F0-F24(5)

2. Storm Wind Warning IV-00080-F0-F24(7)

3. Gale Wind Warning IV-00075-F0-F24(8)

4. Significant Wave Height 6 to 9 M IV-00083-F0-F24(5)

HSWATL Issued 0345 UTC Feb 06

1. Storm Wind Warning IV-00085-F0-F24(2)

2. Gale Wind Warning IV-00073-F0-F24(12)

3. Significant Wave Height 6 to 9 M IV-00083-F0-F24(5)

HSWATL Issued 0410 UTC Feb 06

1. Gale Wind Warning IV-00074-F0-F24(8)

2. Significant Wave Height IV-00072-F0-F24(9)

HSWATL Issued 0415 UTC Feb 06

1. Gale Wind Warning IV-00079-F0-F24(4)

HSWATL Issued 0420 UTC Feb 06

1. Heavy Freezing Spray Warning IV-00079-F0-F24(4)

$$

Part II: Synopsis

Features at 0600 UTC 2023 FEB 06

1. Low 38N 68W 1002 mb moving NE 30 KT. Rapidly intensifying.

2. Low 65N 36W 969 mb nearly stationary.

3. Low 54N 51W 1009 mb moving NE 30 KT.

4. Low 50N 55W 1011 mb moving NE 55 KT. Rapidly intensifying.

$$

PART III: Forecasts

VALID: 24 Hours Starting 0600 UTC 2023 FEB 06

Conditions indicated describe the conditions in the given area that is outside overlapping warning areas.

1. Winds

AREA: 34.6N 53.0W, 30.4N 61.1W, 27.9N 68.7W, 27.7N 75.7W, 28.6N 76.8W, 33.1N 76.9W, 39.0N 74.0W, 41.5N 71.4W, 44.1N 70.2W, 47.6N 59.0W, 49.8N 53.3W, 52.4N 52.5W, 55.2N 53.9W, 56.0N 56.6W, 58.5N 58.2W, 60.3N 62.3W, 59.9N 64.9W, 60.6N 65.2W, 61.2N 64.3W, 61.2N 61.6W, 61.5N 58.6W, 59.7N 51.6W, 60.1N 49.5W, 60.0N 44.0W, 61.4N 42.4W, 65.0N 40.1W, 65.6N 35.0W, 48.4N 35.0W, 45.5N 39.9W, 39.3N 45.6W, 34.6N 53.0W

CONDITIONS: Wind 28 to 34 kt

AREA: 12.9N 75.0W, 12.4N 73.9W, 12.4N 72.4W, 12.1N 72.3W, 11.7N 71.9W, 11.7N 70.1W, 11.5N 70.0W, 11.0N 71.5W, 11.8N 72.2W, 11.9N 73.4W, 11.0N 74.2W, 10.6N 75.8W, 11.3N 76.4W, 11.9N 76.4W, 12.9N 75.0W

CONDITIONS: Wind 28 to 34 kt

2. Significant Wave Height

A. AREA: 30.6N 39.7W, 29.5N 44.8W, 28.3N 49.0W, 29.4N 52.0W, 34.7N 51.4W, 40.3N 52.1W, 34.0N 57.8W, 30.6N 69.4W, 31.1N 73.2W, 35.5N 72.9W, 42.7N 67.8W, 42.9N 61.9W, 41.5N 60.4W, 43.7N 56.9W, 41.5N 52.2W, 42.7N 49.9W, 45.0N 50.7W, 44.0N 52.9W, 45.8N 55.4W, 47.0N 52.7W, 54.4N 51.2W, 58.7N 55.5W, 60.2N 53.8W, 61.9N 53.4W, 61.9N 51.6W, 60.0N 43.6W, 63.8N 40.7W, 65.5N 37.7W, 65.9N 35.1W, 34.1N 34.9W, 30.6N 39.7W

CONDITIONS: Seas 4 to 6 m

3. Freezing Spray 

A. AREA: 46.7N 53.0W, 46.8N 56.0W, 45.1N 61.1W, 46.9N 64.3W, 50.5N 66.0W, 50.3N 60.1W, 52.3N 54.7W, 53.6N 54.1W, 55.1N 55.3W, 56.1N 58.8W, 59.3N 60.4W, 60.9N 60.0W, 66.5N 56.1W, 67.0N 53.7W, 62.6N 50.1W, 60.9N 47.8W, 60.3N 43.3W, 62.9N 42.1W, 65.2N 38.8W, 65.4N 37.6W, 65.6N 35.0W, 59.0N 35.0W, 55.1N 37.5W, 50.4N 45.7W, 48.9N 45.1W, 45.8N 47.6W, 47.2N 49.3W, 47.6N 51.1W, 46.7N 53.0W

CONDITIONS: Accumulation less than 1.0 cm/hr

B. AREA: 43.6N 70.5W, 44.5N 69.0W, 45.5N 66.1W, 45.4N 63.9W, 44.2N 66.0W, 43.5N 68.2W, 43.6N 70.5W

CONDITIONS: Accumulation less than 0.5 cm/h

TIMING: Onset near 23Z Feb 06

4. Visibility 

A. AREA: 33.9N 74.4W, 35.3N 78.8W, 40.2N 74.5W, 40.0N 71.4W, 33.9N 74.4W

CONDITIONS: Visibility less than 1.0 nm

B. AREA: 31.7N 75.7W, 36.9N 69.8W, 41.9N 70.7W, 46.1N 59.5W, 47.3N 64.9W, 50.2N 64.7W, 51.5N 56.7W, 47.8N 59.2W, 47.1N 52.9W, 53.0N 56.1W, 62.4N 66.3W, 67.0N 61.6W, 67.2N 51.6W, 61.2N 47.7W, 60.1N 40.0W, 66.0N 39.3W, 66.4N 35.1W, 50.0N 35.0W, 42.6N 55.2W, 34.5N 58.8W, 28.1N 66.2W, 27.3N 72.5W, 31.7N 75.7W

CONDITIONS: Visibility less than 1.0 nm

$$