Good Sunday and Happy Mother’s Day. A very cold air mass has pushed into the state today and it’s Mother Nature that is going to try to steal the weather show. Frost and record low temps are possible late tonight into Monday morning. A Green Thumb Alert is in full swing.

We swill start out the day with temps running in the upper 30s to low 40s. Thermometers later today will top out in the upper 50s across much of central and eastern Kentucky. A few spots may top the 60 degree mark under a partly sunny sky.

Tonight is when the frosty fun begins with readings likely dropping into the low and mid 30s. Record lows are in jeopardy:

Lexington: 37 1996     32 is the coldest recorded temp for this late in the season. (May 20, 1894)

Louisville: 40 1997     35 is the coldest recorded temp for this late in the season. (May 25, 1925)

Frankfort: 34 1941     31 is the coldest recorded temp for this late in the season. (May 22, 2002)

Bowling Green: 35 1895     33 is the coldest recorded temp for this late in the season. (May 16, 1997)

Covington: 31 1996     30 is the coldest recorded temp for this late in the season. (May 19, 2002)

As you can see… daily record lows are a good bet for some cities. If we can somehow approach the 32 degree mark… it could challenge some of the coldest temps ever for this late in the spring. Any high clouds or fog would keep temps up a few degrees, so it’s touch and go on that.

Regardless… frost is a real possibility Monday morning.  Afternoon temps will rebound toward 60 under sunny skies. Another frost threat will be with us early Tuesday in the east.

Much warmer air will then shoot in here for the middle of the week…

Euro

That will push temps well into the 80s and ushers in a pattern more typical of May. It’s one that will also see an increase in the threat for showers and thunderstorms by Thursday. That looks to kick into high gear into early next week…GFS 2

This is NOT a pattern that is flipping the switch to summer.

Make it a great day and take care.