April

Severe weather roared back into Oklahoma during April with giant hail, severe winds up to 80 mph, flash flooding, and over 40 tornadoes—a number that is destined to grow with further investigation by National Weather Service damage survey teams. That total included a historic outbreak on April 27, a day where at least 22 tornadoes were confirmed to have struck the state—the second-most prolific outbreak for a single day during April on record, behind the 33 twisters back on April 14, 2011.

Drought relief and severe weather topped April’s weather headlines with a parched northwest Oklahoma seeing its first significant moisture in months and central Oklahoma enduring a tornado outbreak. Eighteen tornadoes touched down on April 19, a day when severe weather was thought to be limited by a warm atmospheric lid above the surface. High temperatures over 90 degrees combined with a potent dryline to break that lid and initiate the storms that would eventually spawn the twisters.

Cool weather helped keep severe weather at bay in Oklahoma throughout much of April. A late spring freeze—damaging in its own right—punctuated the scarcity of severe weather during the month’s first three weeks. The cold eventually gave way to an emphatic exclamation point, however, when tornadoes, flooding, high winds, and a hail-borne catastrophe struck during April’s final week. At least four confirmed tornadoes touched on April 28, including an EF-1 twister that struck near Pauls Valley at the stroke of midnight.

It’s difficult to say which weather hazard should claim top billing for April. Two late season freeze events made their pitch by battering the state’s winter wheat crop and fruit orchards, primarily on the 15th and again on the 18th. Temperatures dropped into the 20s as far south as the Red River, with a bit of light snow falling across the western half of the state during the extended cold snap. Drought also made a bid for the top spot by threatening to spread from its confines in the far western Panhandle to a much broader area of western Oklahoma.