May Summary

May 2010

Historic flooding on the first two days of the month dropped immense amounts of rain on Kentucky, especially over the south.  One location in Warren County received over ten inches of rain in less than 48 hours!  After about five months of dry weather, these widespread torrential rains saturated the soil and caused major flooding issues.  The Kentucky River at High Bridge rose to its third highest crest on record, and its highest stage in 32 years.  The Green River at Rochester stayed above flood stage for two full weeks.  Saturday, the 1st, was Louisville's second wettest Derby Day on record, though the sun broke through the heavy clouds just moments before the call to the post.

There were two tornadoes during the month.  The first was on the 2nd, during the flood event, when an EF0 traveled across Monroe County north of Tompkinsville.  The other was an EF1 in the Big Spring area along the Breckinridge/Hardin County border on the 21st.  Damage from both tornadoes was generally light, other than a destroyed barn near Big Spring.

  Average Temperature Departure from Normal Precipitation Departure from Normal
Bowling Green 69.0° +3.2° 11.87" +6.51"
Frankfort 66.7° +4.7° 9.22" +4.61"
Lexington 66.8° +3.0° 9.95" +5.17"
Louisville Bowman 69.1°   8.72"  
Louisville OFFICIAL 70.5° +4.7° 8.16" +3.28"

Records Set:

Bowling Green
Record daily precipitation:  4.75" on the 1st (also the record 1-day precipitation amount for the month of May, until the next day)
Record 1-day precipitation amount for the month of May:  4.92" on the 2nd
2nd wettest May on record

Frankfort
Record daily precipitation:  1.58" on the 1st
Record daily precipitation:  3.67" on the 2nd
2nd wettest May on record

Lexington
Record 1-day precipitation amount for the month of May:  4.31" on the 2nd
Record daily precipitation:  2.11" on the 21st
4th wettest May on record

Louisville
Record daily precipitation:  3.44" on the 2nd
10th wettest May on record

Location 2010 Precip
2010 Rank
#1*
Barren River Lake 11.59" #2 13.53" in 1983
Bowling Green 11.87" #2 13.27" in 1983
Bradfordsville 11.49" #3 13.59" in 1983
Brandenburg 6.83" #3 12.23" in 2004
Dix Dam 10.61" #1 #2:  10.57" in 1983
Frankfort 9.22" #2 10.74" in 1983
Lexington 9.95" #4 10.91" in 2004
Louisville 8.16" #10 11.57" in 1990
Marrowbone 11.69" #1 #2:  7.11" in 2009
Nolin River Lake 10.18" #5 12.63" in 1984
Rough River Lake 9.04" #6 16.31" in 1995
Scottsville 12.59" #2 13.86" in 1983
Tell City 6.54" #18 13.27" in 1995
Woodbury 10.47" #4 12.94" in 1984

*different stations have different periods of record

Swift water rescue in Allen County, Kentucky

A swift water rescue in Allen County on the 2nd.  NEVER DRIVE INTO FLOODWATERS!  Photo courtesy the Allen County Citizen-Times



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