Advances in Observations and Forecasts

Storm Warning: Advancements in Marine Forecasting since the Edmund Fitzgerald

	Background Information:
		The Edmund Fitzgerald
		The Fall Storm Season
		Forecast and Warning Definitions
		Resources, Links and Credits
	Advances in:
		Scientific Understanding
		Numerical Weather Prediction
		Communications
		Radars and Satellites
		Observations and Forecasts
	Back to:
		Main Page
		NWS Marquette Home Page

Observation Network

Forecast Format

Example from 1975

Example from 2010

Gridded Datasets

Forecast Format

An increase in observation and weather prediction technology has enabled the marine forecaster to add detail, in both time and space, to the open lake and nearshore forecasts. In 1975, the Open Lake Forecast only covered 24 hours while technology of the era allowed for only minimal detail by 21st century standards. A single weather synopsis was issued for both Lakes Superior and Michigan daily. Today, separate forecasts are issued for each lake. Within each forecast is a customized synopsis as well as wind, weather, and wave information out to 5 days.

Great Lakes forecasts today also use increased geographical references to highlight local effects that will produce higher winds and/or waves. An example of this on Lake Superior occurs when a west to northwest wind prevails along the tip of the Keweenaw Peninsula. The funneling winds along the land mass of the Keweenaw often produces higher waves off the north shore of Manitou Island and the peninsula, an area very close to the commercial shipping lanes. This added spatial detail gives the marine community a "heads up" to weather that will likely deviate from the general conditions experienced on the majority of the lake.

Credits | Disclaimer | Privacy Notice | Site Map | Feedback

Powerful Pacific System Impacting the West; First Significant Snow for Portions of the East

Advances in Observations and Forecasts

Forecast Format