Weather Blog: 20 Degree drop

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It’s Spring in Alabama. Pollen is in the air, the days are getting longer, and cold fronts are like a slap in the face. By definition, a cold front is a boundary that separates two different air masses, one of which is cold and the other of which is warm. Seems rather elementary when you think about it, but it’s important. At different points in the year, cold fronts can have different effects. 

Cold fronts usually come with changes in wind direction which also seems like an elementary reminder. Still, a cold front in the Summer is not the same as a cold front in the spring. In the Summer we go from 90 degrees to 85 degrees, but in the Spring, we can easily go from 75 degrees to 55 degrees in a matter of hours. That is the topic of today’s blog. 

The Huntsville International Airport has recorded a high temperature of at least 60 degrees every day since Tuesday, March 19, 2019. A pretty good stint of fairly warm air in my opinion. With that in mind, the cold front expected to come through the Tennessee Valley early Sunday morning may come as a bit of a shock. My forecast high for tomorrow (Saturday) is 74 degrees, but the forecast high on Sunday is a mere 54 degrees. This is fair warning to all the migraine sufferers I know how sharp changes in temperature can affect those. Of course, the cold front does come with a chance of storms and I’ve outlined that below. 

The SPC has gone ahead and placed a good chunk of the Tennessee Valley under a marginal risk for severe storms Saturday afternoon and evening. I’ll just get it out of the way now and tell you the tornado and flood threat are minimal at best. The biggest threats here will be some hail and gusty winds. As far as rainfall totals, those will be less than 1.0” but locally some areas could see up to 1.0”. 

Timing with these storms will be Saturday evening through the overnight and they should be out of here by the time you wake up on Sunday morning. From there Sunday will feature plenty of sunshine, but it’ll be “chilly” especially since average for late March is in the upper 60s. 

I guess the takeaway here is that you shouldn’t put the coat away just yet! 
 

©TEGNA Inc. 2019. All Rights Reserved.

Overcast

Huntsville

42°F Overcast Feels like 42°
Wind
0 mph
Humidity
79%
Sunrise
Sunset

Tonight

Showers early, then cloudy overnight. Low 38F. Winds light and variable. Chance of rain 40%.
38°F Showers early, then cloudy overnight. Low 38F. Winds light and variable. Chance of rain 40%.
Wind
3 mph SSW
Precip
40%
Sunset
Moon Phase
Waning Gibbous
Overcast

Decatur

42°F Overcast Feels like 42°
Wind
0 mph
Humidity
82%
Sunrise
Sunset

Tonight

Rain showers this evening with overcast skies overnight. Low 38F. Winds light and variable. Chance of rain 40%.
38°F Rain showers this evening with overcast skies overnight. Low 38F. Winds light and variable. Chance of rain 40%.
Wind
3 mph SW
Precip
40%
Sunset
Moon Phase
Waning Gibbous
Overcast

Florence

46°F Overcast Feels like 46°
Wind
0 mph
Humidity
79%
Sunrise
Sunset

Tonight

Slight chance for a shower late. Low 40F. Winds light and variable.
40°F Slight chance for a shower late. Low 40F. Winds light and variable.
Wind
5 mph SW
Precip
20%
Sunset
Moon Phase
Waning Gibbous
Scattered Clouds

Scottsboro

41°F Scattered Clouds Feels like 41°
Wind
0 mph
Humidity
93%
Sunrise
Sunset

Tonight

Partly cloudy skies early will give way to cloudy skies late. Low 38F. Winds light and variable.
38°F Partly cloudy skies early will give way to cloudy skies late. Low 38F. Winds light and variable.
Wind
1 mph WNW
Precip
20%
Sunset
Moon Phase
Waning Gibbous
Scattered Clouds

Guntersville

41°F Scattered Clouds Feels like 41°
Wind
3 mph WSW
Humidity
76%
Sunrise
Sunset

Tonight

Partly cloudy this evening with more clouds for overnight. Low near 40F. Winds light and variable.
40°F Partly cloudy this evening with more clouds for overnight. Low near 40F. Winds light and variable.
Wind
1 mph W
Precip
20%
Sunset
Moon Phase
Waning Gibbous

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