Nice cloud rotation

Nice cloud rotation nearly right overhead tonight as a line of thunderstorms moved through!

It must have been an associated downburst that caused a LOT of mature tree damage in North Alexander park, and over by the King Mill Dam. Power was out in the northern part of Faribault for about 4 hours.

Faribault Woolen Mill Dam failure and subsequent patching

The City of Faribault, Minnesota – City Government Facebook wrote:

DAMAGE TO DAM: City of Faribault crews are currently working to stabilize flood-related erosion on the north side of the dam located next to the Faribault Mill, south of Slevin Park.

While the full extent of damages will not be entirely clear until water fully recedes, what can be seen has called for the need to stabilize the area and to prevent additional erosion.

The State has been notified, as is general practice in situations like this, and we’re encouraging everyone to avoid the area. Please do not proceed beyond barricades and/or police tape within Slevin Park.

There is no immediate public risk, and this erosion doesn’t appear to be as concerning as the Rapidan Dam situation, but with more rain in the forecast, the City – with help from partnering agencies – will continue monitoring the erosion.

Faribault, MN – Straight River Flooding Scene – The Next Day

Faribault Scene as of 7 a.m. 6/22 – 2nd Avenue Road Closure near the Fairgrounds, Cannon River Reservoir at Father Slevin Park, Straight River/Cannon River Reservoir at the Faribault Woolen Mills, Straight River at Fleckenstein Park, Urban flooding near the American Legion, River flowing over Union Pacific Railroad, Straight River at Teepee Tonka Park, Lowland flooding in Frogtown, 14th Street Trail Flooding, River near new floodwall at Waste Treatment Plant.

“Trapped by a Tornado”, KSTP’s Dave Dahl, April 26, 1996

We’ve learned a lot about tornadoes in severe weather in the past 28 years, and thus I’m posting this primarily as a “what never to do” video. There are several quotes and pieces of video in these clips that will give any modern storm chaser anxiety.

1:45 – Chasing on an Interstate highway, with no easy way to change directions 90 degrees if necessary. Seeking shelter from a tornado under a freeway overpass (never do this, please).

4:30 – More of the above.

6:00 – Even more of the above, with innocent video crew.

6:26 – Putting yourself in a situation where you need to lie flat in a ditch as a last ditch shelter.

6:48 – “Are we OK?” “Yes, we’re fine. I’ve been doing this for a long time. I’ve been doing this for 19 years watching this stuff. Never been this close.”

7:22 – “In a car, Get out, get away from the car, lay flat in the ditch, and that’s exactly what we did. And we stayed safe.”

The Tornado Siren

The “tornado siren”. Today, they are almost exclusively used to warn residents of a community, while they are outdoors, of hazardous weather events. But they weren’t always used for that.

During the cold war in the 1950s, sirens were acquired and installed by Civil Defense agencies throughout the country as part of Harry Truman’s Civil Defense Act. They were designed to warn people of a pending nuclear attack. In other words, if you heard the siren, you “ducked and covered” to protect yourself from the bright detonation flash and subsequent shock wave and fallout.

Later, in the early 1970s, they started to be used to alert residents of tornadoes and significant severe weather events as well.

The sirens use wireless technology to listen to their command to sound, and that command can come from several locations. The Rice/Steele Pearl Street dispatch center, Rice County Emergency Management offices at the law enforcement center, through mobile sources if necessary, and even manually as a last resort.

Here in Rice County, the sirens have been programmed to be able to sound in 10 separate quadrants. For example, if there is a threat near Faribault but not Morristown, Faribault sirens can sound, but not Morristown’s. Configuring the sirens in this way helps prevent confusion from having them sound when the threat is 10 or more miles away. Quadrants include Faribault, Northfield, Dundas, Nerstrand, Morristown, Warsaw, Millersburg, The Lakes, Veseli, and Lonsdale.

During today’s siren test, just like every 1st Wednesday of the month, you heard two distinct patterns. The first is what we call “alert mode”. That’s when the sirens spin up and produce a steady tone for a duration of time, and then spin back down. That mode gets used during severe weather. Then, the “attack mode” is tested. That is the classic “rise and fall” pattern that is commonly associated with a nuclear attack. Both are always tested, because you just never know.

Today, the severe weather alert sirens mean one thing. “Something urgent is going on. Get inside, and check your local radio, or online news source for more information.” That is their sole job. Always remember, THERE IS NEVER AN ALL CLEAR SIGNAL. Several factors such as cut electrical lines or mechanical failure could cause sirens to stop sounding, but the threat could still be very real.

With today’s efficient homes and commercial buildings, you will need a NOAA weather radio, weather app on your cell phone, or other way to alert you indoors instead of relying on the sirens. Despite that fact, the sirens still provide a useful and important service in Rice County.