Five tornadoes struck the Oklahoma City metro area on Friday, the weather service said.
In both cases, the tornadoes dropped out of the sky just west of Shelley's neighborhood.
The U.S. averages more than 1, 200 tornadoes a year and most are relatively small.
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Flash flooding and tornadoes killed three people in Arkansas late Thursday and early Friday.
Thursday's tornadoes were much less dangerous than the EF5 storm that struck Moore, Okla.
It's two years this week that tornadoes hit Joplin, Missouri, which is still recovering.
"Devastating damage to Moore, Oklahoma due to Tornadoes, " Weeden wrote on his Twitter account.
Tornadoes were also reported east of Dale, west of Paden, and near Prague in Oklahoma.
At least 16 tornadoes hit Texas on Wednesday night, according to the National Weather Service.
April is the deadliest month for tornadoes, and the numerical frequency peaks in May.
The frequency of strong-to-violent tornadoes has been cut in half during the past 40 years.
Louis International Airport, which suffered severe damage when tornadoes struck the region last weekend.
Destructive tornadoes and severe storms tore through the South in late April, killing hundreds of people.
People affected by certain tornadoes, severe storms, floods and other recent natural disasters have extra time.
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Before the WSR-57 went online the number of reported tornadoes averaged about 500 per year nationwide.
The warm temperatures also contributed to conditions that were favorable for severe thunderstorms and tornadoes.
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So far this year, six tornadoes have been reported -- about half the normal number.
Thus far in 2013, six tornadoes have been reported, about half the normal number.
Several tornadoes were also reported, with one ripping through Brevard County damaging more than 50 homes.
Six tornadoes have already hit the Bundaberg region, tearing off roofs and injuring 17 people.
Matt Lehenbauer, Woodward's emergency management director, said the sirens sounded three minutes before the tornadoes struck.
S., fatal tornadoes in the Midwest and a devastating drought throughout much of the country.
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But tornadoes are so small, relatively, that they are still too small for the models to see.
On average, 10 tornadoes a year reach the most dangerous classification and almost never strike populated areas.
The prime mission of the NWS is to give warning of tornadoes, hurricanes and other weather hazards.
In the Ohio and Mississippi valleys, it poured torrential rain and spawned tornadoes in the Deep South.
And some of you have seen what happened there as a consequence of the tornadoes that struck.
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His canvases are brash, textural tornadoes of newspaper, paint, scraps of magazines and barrels worth of glitter.
The two storm measurement systems are similar in scale to the ones that measure hurricanes and tornadoes.
In April of this year, a devastating series of tornadoes challenged our resilience and tested our resolve.
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