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Tracking Atmospheric River for California; Record Temperatures Further East

An atmospheric river will bring gusty to high winds, moderate to heavy rainfall, and potential flooding to California today through Saturday. Heavy snow will be possible over the Sierra Nevada mountains into Friday associated with this atmospheric river. East of these impacts dozens of record high maximum and high minimum temperatures may be broken or tied today and Friday. Read More >

After an April with no severe weather, May was also very quiet. The only significant severe weather of the month took place on the 3rd when the year's fifth tornado touched down. Just after eight o'clock in the morning a small tornado, only about 180 feet wide, was on the ground for half a mile in Tompkinsville. Most of the damage was to trees, power lines, and rooftops. Also on this day hail around the size of quarters was reported in Warren County and trees were blown down in Burkesville.

The only other storm damage of the month was when trees were blown down near the Makers Mark Distillery in Marion County on the 4th. Also on that date Bowling Green was drenched with 3.11" of rain...the 8th wettest May day on record for the city.

Overall, temperatures were not oppressive. Cool weather prevailed from the 5th to the 16th, with highs in the 60s and lows mostly in the 40s, but some spots did dip into the 30s several times during that stretch. On the 6th the mercury fell to 36 degrees at Lexington, just two degrees away from the record.

The one warm spell took place from the 19th to the 27th, peaking from the 23rd to the 25th when Louisville hit exactly 90 each day. However, dew points were low so it wasn't very humid, and morning lows were in the 60s.

The month ended on a chilly note with clouds and drizzle leading to record cool high temperatures in the 50s on the 29th. 

 

  Average Temperature Departure from Normal Precipitation Departure from Normal
Bowling Green 64.6° -3.4° 4.80" -0.23"
Frankfort 62.8° -2.7° 2.88" -2.22"
Lexington 61.1° -4.3° 4.78" -0.66"
Louisville Ali 66.0° -2.3° 2.95" -2.23"
Louisville Bowman 64.2° -3.0° 2.61" -2.55"

 

Records

4th: Rainfall of 3.11" at Bowling Green, 8th wettest May day on record at Bowling Green
28th: Rainfall of 1.59" at Lexington
29th: Cool high of 57° at Bowling Green, cool high of 52° at Lexington, cool high of 57° at Louisville

 

Tompkinsville, KY EF1 tornado damage May 3, 2021

Tornado damage at the corner of Fifth and Irdu in Tompkinsville on the 3rd. Image from NWS Louisville drone survey.