Continued Flood and Rip Current Risk from Chantal; Lingering Flood Watches in Central Texas

Chantal now a Tropical Depression. Flash flood concerns continue across portions of central North Carolina into Monday. Life-threatening surf and rip currents conditions are expected to continue at beaches along the U.S. east coast from northeastern Florida to the Mid-Atlantic states during the next day or so. Flood Watches and recovery continue across central Texas. Read More >

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November 2009

Tulsa: November 2009 tied with 1915 as 8th warmest November (since 1905) and was 17th driest (since 1888).

Tulsa: 2nd latest occurrence of first freeze on Nov 26 (latest ever was Nov 28, 1990) (since 1906)

Tulsa: 21st coldest Autumn (since 1905) and 18th wettest Autumn (since 1888) despite a warmer and drier Nov.

Tulsa: tied a record daily snowfall amount of Trace on Nov. 17.

Fort Smith: 9th warmest and 34th driest November (since1882)

Fort Smith: tied as the 6th latest occurrence of first freeze (since 1901)

Fort Smith: 6th wettest and 50th coldest Autumn (since 1882)

McAlester: 8th warmest and 4th driest November (since 1953)

Bartlesville: tied as 9th warmest (since 1920)

Fayetteville: record warm minimum temperature of 52 tied on Nov. 9 (old record 1949)

No daily temperature records were set or tied at Tulsa, Fort Smith, or McAlester

No river flooding occurred this November.

Almost the entire area received only between 10% and 50% of the normal November precipitation

Our area typically sees a greater number of days with warmer minimum temperatures during El Nino episodes, which may be have played a role in the warm November and late first freeze this year.

According to CPC, output from several computer models for this December indicates “a negative Arctic Oscillation (AO), a negative North Atlantic Oscillation (NAO), and a positive Pacific-North American Oscillation (PNA) pattern. These features are associated with below normal temperatures throughout much of the central and eastern portions of the CONUS. This is expected to overwhelm the usual ENSO temperature teleconnection pattern favored in the early part of an El Nino winter.”

An El Nino Advisory is in affect. El Nino is still moderate intensity and expected to remain at least a moderate event later through the winter. Click here for the Winter Outlook.

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

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Continued Flood and Rip Current Risk from Chantal; Lingering Flood Watches in Central Texas

Climate and Hydrology Highlights for Nov. 2009