Extreme Heat in the Central US Expands to the Southeast; Severe Weather & Flash Flooding Threats in the Plains & Upper Midwest Tonight.

Dangerous heat continues across portions of the Central and Southeast U.S. through July. Heavy rains, flooding, & severe weather are possible across the Plains & Upper Midwest to the upper Great Lakes tonight, with the heavy rain and flooding threat continuing through Friday. Tropical Depression 12W brings heavy rain to Guam & the Marianas through Saturday. Read More >

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September 2009

2 rivers exceeded flood stage: Neosho R. near Commerce (twice this month, both moderate flooding) and Verdigris R. near Lenapah (minor flooding)

Locations east of I-44 and Hwy 75 received 125% to 300% of the normal September rainfall. Elsewhere, 25% to 75%. Eastern Kay, western Osage, and western Pawnee Counties had the biggest deficits receiving 10% to 25% of normal rainfall for September.

Spavinaw Coop Observer reported 12.05 inches in Sept. 2009, with reports of over 1 inch of rain on 5 days and over 3 inches on 2 days this month.

RVS reported 10.44 inches and MKO reported 10.20 inches this month.

TUL: 17th coldest September (since1905) and 13th wettest September (since1888)

TUL: Set a daily rainfall record of 4.42" on 9/21/09. Old record was 3.50" in 1902.

FSM: 9th wettest September (tied with 1890) and 36th coldest September (since1882)

According to OCS, Southeast OK ranked as the 6th wettest September and the 4th wettest July-September period (since 1921). From Jan. 1-Sept 30, Southeast OK ranked 11th wettest; East Central OK ranked 26th wettest; and Northeast OK ranked 24th wettest.

An El Nino Advisory is in affect. El Nino continues and is still expected to become a moderate event later this fall and winter.

According to the Drought Monitor, no drought conditions exist across eastern OK or northwest AR.

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Extreme Heat in the Central US Expands to the Southeast; Severe Weather & Flash Flooding Threats in the Plains & Upper Midwest Tonight.

September 2009 Highlights