Published On: 07.06.23 | 

By: James Spann

James Spann: Ocean of humidity stays in place over Alabama; afternoon storms form

James Spann forecasts more typical summer weather for Alabama from Alabama News Center on Vimeo.

MUGGY: Very high humidity levels will stay in place across Alabama for the foreseeable future, which is expected in July around here. In the muggy air, the daytime heating process will lead to the development of showers and storms during the afternoon and evening, mostly between 2 and 9 p.m. It won’t rain everywhere, but where storms do form, they will be strong. The chance of any one spot seeing rain today is 50-60%, and the high will be close to 90 degrees.

What I just described is pretty much the forecast Friday and through the weekend. We are in that time of the year when the overall weather just doesn’t change much. The placement, timing and coverage of the afternoon and evening storms will change daily, but it is beyond the science to tell you exactly when and where it will rain in advance. You just have to watch radar trends if you have something planned outdoors.

The most dangerous elements of thunderstorms on summer afternoons in Alabama are lightning and wet microbursts. When you hear thunder, get indoors, even if it isn’t raining. The microbursts (local areas of damaging straight-line winds) can come suddenly, and there isn’t much way of providing an early warning.

NEXT WEEK: The overall pattern stays the same, and accordingly the weather will be in a holding pattern. Highs will be in the low 90s, with partly sunny days and scattered, random afternoon and evening showers and thunderstorms.TROPICS: Things remain very calm across the Atlantic basin, and tropical storm formation is not expected at least for the next seven days.

ON THIS DATE IN 1893: A violent tornado killed 71 people on its 40-mile track across northwestern Iowa. Forty-nine people were killed around Pomeroy, where 80% of the buildings were destroyed.

ON THIS DATE IN 1986: Thunderstorms during the mid-morning and again during the evening produced significant flash flooding at Leavenworth, Kansas. The official rainfall total was 10.37 inches, but unofficial totals exceeded 12 inches. At nearby Kansas City, the rainfall total of 5.08 inches was a daily record for July.

For more weather news and information from James Spann and his team, visit AlabamaWx.