Severe Weather and Flash Flooding From the Upper Midwest to Mid-Atlantic; Heat Continues in the Central and Southeast U.S.

Scattered severe thunderstorms are expected tonight across parts of the Upper Midwest to western Great Lakes. Additional severe storms will also be possible in parts of the northern Plains, central Appalachians, and Mid-Atlantic. Extreme heat is expected to intensify across much of the Southeast and Tennessee Valley, continuing through much of this week. Read More >

Overview

Bitterly cold air from the Arctic region that settled into the Northern Plains in early to mid February, 2021 resulted in numerous record low temperatures being set. This is a preliminary list of new record low temperatures. Of significance is that Spearfish set an all time record low of -33. The previous all time record low was -32, last set back on Jan 4, 1950. The period of record for Spearfish goes all the way back to 1893.

...PRELIMINARY LOW TEMPERATURE RECORDS...

LOCATION        DATE     NEW RECORD    PREVIOUS RECORD (YEAR)

BELLE FOURCHE   02/13    -23           -23 (2007)

BISON           02/12    -26           -22 (1944)
                02/13    -23           -22 (1936)

2 E COTTONWOOD  02/15    -34           -33 (2007)

DEVILS TOWER    02/13    -29           -20 (2007)
                02/15    -24           -24 (2007)

15 SSE DUPREE   02/12    -25           -17 (1969)
                02/13    -21           -15 (2020)
                02/14    -24           -13 (2001)

EDGEMONT        02/13    -29           -11 (2007)
                02/14    -31           -14 (2001)
                02/15    -39           -27 (2007)

FORT MEADE      02/13    -18           -17 (1914)
                02/14    -21           -13 (1906)
                02/15    -20           -17 (2007)

4 SE GILLETTE   02/13    -29           -29 (1936)

HOT SPRINGS     02/13    -22           -18 (1936)

2 E KYLE        02/13    -18           -18 (1966)
                02/14    -18           -15 (1973)
                02/15    -18           -13 (1958)
                02/16    -11           -10 (2018)

LEAD            02/11    -15           -15 (1948)

LEMMON          02/13    -27           -27 (1936)

5 SW LODGEPOLE  02/09    -27           -20 (2019)
                02/12    -31           -17 (2008)
                02/13    -32           -30 (2020)
                02/14    -40*          -21 (2020)
                02/15    -40*          -25 (2019)

8 E MARTIN      02/12    -12            -3 (1997)
                02/13    -14           -12 (2020)
                02/14    -22           -11 (2020)
                02/15    -28            -4 (1991)
                02/16    -30             2 (1990)

12 SW MAURINE   02/12    -21           -17 (1988)
                02/13    -22           -19 (2007)
                02/14    -29           -19 (2007)

5 SE MILESVILLE 02/14    -25           -21 (2007)

14 S MISSION    02/14    -18           -14 (2007)
                02/15    -25           -22 (2007)

MOUNT RUSHMORE  02/09    -12           -11 (1975)
                02/14    -19            -8 (2007)
                02/11    -18           -11 (1981)
                02/12    -19            -9 (1986)
                02/13    -20            -8 (1995)

ORAL            02/14    -22           -21 (2007)

PACTOLA DAM     02/08    -18           -18 (2011)
                02/12    -20           -19 (1986)
                02/13    -27           -16 (1986)
                02/14    -26           -15 (2007)
                02/15    -25           -20 (2007)

SPEARFISH       02/12    -24           -23 (1936)
                02/13    -30           -24 (1936)
                02/14    -33*          -28 (1936)
                02/16    -30           -27 (1936)

RAPID CITY ARPT 02/12    -12           -11 (1949)
                02/13    -24           -16 (2007)
                02/14    -23           -20 (2007)

4 NW RAPID CITY 02/12    -14           -14 (2018)
                02/15    -21           -19 (2007)

7 ENE ROCHELLE  02/10    -29           -21 (1959) 
                02/12    -23           -20 (1958)
                02/14    -39           -16 (1978)  
                02/15    -38           -20 (2001)

1 E WESTON      02/08    -25           -16 (1978)
                02/13    -34            -8 (1986)
                02/14    -33           -20 (1986)

WIND CAVE       02/12    -15            -6 (2004)
                02/13    -23           -15 (2007)
                02/14    -21            -9 (2007)

Note: * denotes an all time record low

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Severe Weather and Flash Flooding From the Upper Midwest to Mid-Atlantic; Heat Continues in the Central and Southeast U.S.

February 9-16, 2021 Arctic Outbreak