These warnings are issued as warranted. If there is information received from the National Severe Storms Center with regard to threat of tornadic activity, the information is reviewed, and if warranted, disseminated as a Severe Thunderstorm Watch/Warning.

We will now briefly discuss two additional warnings/advisories that, if conditions warrant, would be included in forecasts/travel advisories.

If the synoptic situation is conducive to freezing rain, the information would be reflected in all forecasts/travel advisories until the likelihood ceases.

When conditions warrant, Heat Index and Wind-Chill are reflected in all forecasts/travel advisories until the likelihood ceases.

VERIFICATION OF WARNINGS, ADVISORIES, AND FORECASTS

LEARNING OBJECTIVES: Verify all warnings, advisories, and forecasts for accuracy to determine whether or not conditions occurred as forecasted.

To provide the optimum product it is very important that all forecasts and warnings be verified after the fact. All NAVMETOC and USMC commands have procedures in place to verify the accuracy of all products, whether they be Small Croft, Gale/Storm, or High Seas Warnings.

By monitoring observations from underway units and closely monitoring weather features, enroute weather forecasts can be fine tuned.

The following are products that are routinely verified for accuracy:

Optimum Track Ship Routing (OTSR) Requests Enroute weather forecasts

In the next section we will discuss evaporative ducts and their importance to weather analysis and forecasting; specifically, the Atmospheric Refractivity Profile Generator.

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