![]() ![]() ![]() When this happens, the water vapor turns into liquid water, a process known as condensation. It occurs when air is cooled to the dewpoint temperature, or the temperature at which air becomes satured with water vapor. Predicting severe weather events as well as the process of issuing severe weather warnings is a great challenge, mainly due to the often marginal nature of severe weather in this part of the country.įog is essentially a cloud on the ground. Given that thunderstorms are relatively frequent across the area and tornadoes can occur with little warning, it is important to understand how to stay safe. A local severe weather climatology can be found here. In this area, severe thunderstorms are most frequent from Spring through Fall when temperatures are normally warm and moisture is high. Severe Thunderstorm and Tornado Watches are issued by the NWS Storm Prediction Center, in conjunction with the local Weather Forecast Offices, when conditions are favorable for such severe weather. Tornado Warnings are issued by the NWS when either a reliable report of a tornado (or funnel cloud) is received or doppler radar indicates strong enough rotation capable of producing a tornado. Note that although thunderstorms can sometimes produce excessive lightning, this alone is not enough to trigger the NWS to issue a Severe Thunderstorm Warning. The NWS classifies thunderstorms as "severe" when winds of 58 miles per hour (mph) or greater and/or 1 inch diameter hail or larger are expected. Thunderstorms can produce a variety of hazards including damaging winds, large hail, tornadoes and deadly cloud-to-ground lightning. Satellite imagery showing thunderstorms developing along the sea breeze boundary. Satellite imagery showing cumulus clouds along the sea breeze boundary near the coast. The sea breeze can also enhance rip currents due to the increase in onshore winds. The sea breeze "boundary" created by the temperature difference can help initiate the development of showers and thunderstorms as the warm, moist air is forced upward as the cooler air moves in from the sea (see second photo below). Cooler temperatures, clearing skies and breezy conditions can typically be expected after the passage of the sea breeze. The resulting circulation can have a big impact on many aspects of the weather across southeast South Carolina (SC) and southeast Georgia (GA), including temperatures, winds, and thunderstorms, as well as rip currents. The sea breeze is a mesoscale phenomenon driven by the temperature (and thus pressure) differences between the land and sea. #2 represents the cooler ocean air moving inland as the heated air rises over land (#1). Technology: Radar | Satellites | Computer Models | Weather Balloons We are constantly trying to utilize the latest technology and scientific research to improve our forecasts and impact-based decision support services.įorecast Challenges: Sea Breeze | Thunderstorms | Fog | Rip Currents | Tropical Cyclones | Waterspouts Having an exit interview to hear the agents perspective would be great, but if they aren’t listening while you’re there why would they listen when you’re leaving.There are many forecast challenges faced by meteorologists at the Charleston, SC National Weather Service Forecast Office. The irate and angry callers were one thing but the support or lack there of from the leadership made it worse. But the callers ended up suffering the most because we had to ‘wing it’ and teach ourselves by trial and error. The DEW had to get up and running quickly on short notice and the treatment of the agents was secondary to the callers. You were graded on things you were never taught. I was told by one supervisor to do one thing and then I was told by another supervisor that was the wrong thing to do on several occasions with no apology or explanation. Each question i asked had several different answers by different supervisors or my questions weren’t answered at all. This is a stressful job and the help and support was disjointed and scarce at best. I started here as a temp right after COVID hit 5/2020 and after a day and a half of training we were on live calls. ![]()
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