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Iowa Weather: Explaining outdoor warning sirens

Iowa Weather: Explaining outdoor warning sirens
PLAY A PIVOTAL ROLE IN KEEPING YOU AND YOUR FAMILY SAFE. BUT THERE CAN BE SOME CONFUSION ON WHEN AND WHY THEY DO OR DON’T GO OFF. vlog METEOROLOGIST ZAIN SADRI JOINS US NOW TO ANSWER SOME OF THOSE KEY QUESTIONS. ZAIN. YEAH, BEN, THERE REALLY IS A LOT OF CONFUSION. WE SEE A LOT OF TIMES WITH STORM SIRENS. SO A LITTLE KNOWN FACT IS THAT SIRENS ARE ACTUALLY A WARNING SYSTEM FOR WHEN YOU’RE OUTDOORS. THEY’RE CALLED OUTDOOR WARNING SIRENS. THEY’RE DESIGNED TO ALERT PEOPLE WHO ARE OUTSIDE THAT SOMETHING DANGEROUS IS APPROACHING. SO IF YOU DON’T HEAR THEM INSIDE, YOU’RE NOT MEANT TO. IF YOU HEAR SIRENS THAT YOUR THAT’S YOUR SIGN TO HEAD INSIDE AND SEEK SHELTER. THE NATIONAL WEATHER SERVICE SAYS THAT ONCE INDOORS, THAT’S WHEN YOU’RE SUPPOSED TO CHECK LOCAL MEDIA LIKE vlog HERE TO SEE WHAT THE SEVERE WEATHER THREAT IS. ALSO, SIRENS ARE NOT JUST FOR TORNADOES. CITIES AND COUNTIES. THE ONES THAT CONTROL THESE SIRENS. THEY OFTEN SOUND THEM FOR SEVERE STRAIGHT LINE WINDS OR LARGE HAIL AND WIND AND HAIL, OF COURSE, CAN BE JUST AS DANGEROUS IF TORNADOES, IF YOU ARE CAUGHT OUTSIDE. SO IT’S IMPORTANT TO REMEMBER THE SPECIFIC GUIDELINES FOR SOUNDING SIRENS WILL VARY DEPENDING WHERE YOU’RE AT BY JURISDICTION, DEPENDING ON YOUR CITY, DEPENDING ON YOUR COUNTY. MANY IOWA COMMUNITIES SOUND THEIR SIRENS. IF THE NATIONAL WEATHER SERVICE ISSUES A SEVERE THUNDERSTORM WARNING, FOR EXAMPLE, FOR 70 MILE PER HOUR WINDS OR GOLF BALL SIZE HAIL. SO YOU SHOULD CHECK WITH YOUR LOCAL COMMUNITY TO FIND OUT YOUR SPECIFIC GUIDELINES. BECAUSE WHEN LIFE THREATENING WEATHER IS APPROACHING, MINUTES MAKE A DIFFERENCE. SO IT’S IMPORTANT TO KNOW WHAT YOUR SIRENS MEAN. TH
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Iowa Weather: Explaining outdoor warning sirens
Many Iowans have heard the blaring tones of storm sirens recently, thanks to numerous rounds of severe storms. Sirens have been a staple of the severe weather warning system for decades, but there are many misconceptions about them. They're not designed to warn people indoorsSirens are not meant to be heard inside homes, businesses and other buildings. They're specifically called "outdoor warning sirens."Sirens' purpose are to alert people outside that dangerous weather is imminent, allowing them to get indoors and find more information about the threat. Sirens aren't just for tornadoesWarning sirens have long been associated with tornadoes, but they often go off for other types of severe weather. Many cities and counties also sound their sirens for damaging straight-line winds and very large hail.The Iowa Emergency Management Association actually recommends sirens be activated if a storm could produce wind gusts above 70 mph or hail larger that 1.75 inches in diameter (golf-ball size).Because of this, even certain severe thunderstorm warnings can leading to sirens sounding.Siren policies vary place to placeIn Iowa, local jurisdictions like cities and counties activate outdoor warning sirens. This means a severe storm might trigger sirens in one community, but not another, just because they have different policies.Some siren systems also sound countywide, even when only part of the county is threatened by tornadoes, wind, or hail.To learn more about your area's outdoor warning siren guidelines, contact your county emergency management.

Many Iowans have heard the blaring tones of storm sirens recently, thanks to numerous rounds of severe storms.

Sirens have been a staple of the severe weather warning system for decades, but there are many misconceptions about them.

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They're not designed to warn people indoors

Sirens are not meant to be heard inside homes, businesses and other buildings. They're specifically called "outdoor warning sirens."

Sirens' purpose are to alert people outside that dangerous weather is imminent, allowing them to get indoors and find more information about the threat.

Sirens aren't just for tornadoes

Warning sirens have long been associated with tornadoes, but they often go off for other types of severe weather.

Many cities and counties also sound their sirens for damaging straight-line winds and very large hail.

The Iowa Emergency Management Association actually recommends sirens be activated if a storm could produce wind gusts above 70 mph or hail larger that 1.75 inches in diameter (golf-ball size).

Because of this, even certain severe thunderstorm warnings can leading to sirens sounding.

Siren policies vary place to place

In Iowa, local jurisdictions like cities and counties activate outdoor warning sirens.

This means a severe storm might trigger sirens in one community, but not another, just because they have different policies.

Some siren systems also sound countywide, even when only part of the county is threatened by tornadoes, wind, or hail.

To learn more about your area's outdoor warning siren guidelines, contact your county emergency management.