Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

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May 2009

Tulsa ranked as the 29th coolest and 37th wettest May on record.

Tulsa ranked as the 48th coolest (59.8 deg F) and 22nd wettest (16.16") Spring on record.

Fort Smith ranked as the 43rd coolest and 10th wettest May on record.

Fort Smith ranked as the 59th coolest (61.0 deg F) and 21st wettest (17.33") Spring on record.

Tulsa set a daily rainfall record on May 1 with 3.01" (previous record was 2.10" in 1944).

May 1st: Pryor mesonet station had a record daily rainfall amount of 7.70" (over 5" came within 1 hour). The daily maximum rainfall record for Pryor had been 6.05" from May 10, 1943...and the record for the mesonet station had been 5.92" on May 5, 1998.

Tulsa recorded a record number of consecutive days with a trace or more of rainfall. The new record is 22 consecutive days; the old record was 13 consecutive days, which occurred in May 1935 and April 1957.

There were 16 river flood events this month.

The Neosho River near Commerce reached minor flood stage twice in June.

According to the Oklahoma Mesonet, southeast OK had the 9th wettest Spring on record and the 7th wettest April-May period.

ENSO neutral conditions are ongoing, but the Climate Prediction Center issued a El Nino watch (conditions favorable for development in the next few months).

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Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

May 2009 Highlights