Marginal Day in the HWT

Forecasters are beginning the day located in both the Melbourne, FL and Kansas City/Pleasant Hill, MO CWAs each with very different environments.

SPC Day 1 Outlook 14 May 2019
SPC Day 1 Outlook 14 May 2019

Ongoing convection with a focus on lightning is in store for forecasters in the MLB location.  A (semi-stationary) frontal boundary across central Florida combined with the sea-breeze and plenty of low-level moisture is providing a decent environment for storms capable of producing lightning and high winds.

Surface observations and radar over the SE United States

Forecasters beginning in the EAX region will likely be diagnosing the environment and pre-convective initiation products for the first half, if not majority of the operational hours today.  Later today, we expected isolated convection to develop with enhanced lapse rates and associated increase in CAPE as well as increased low-level moisture.  The HRRR doesn’t initiate convection until ~0200 UTC, but hopefully we will see activity a bit earlier.

 

-Kristin Calhoun

 

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