65 F. average high for April 30.
60 F. high on April 30, 2011.
Trace of rain yesterday in the metro area.
4-9 pm. Time when severe storms are most likely in and near the MSP metro area.
NOAA Weather Radio. The only device that will alert you of a late-night tornado in your county.
TV, radio. Check batteries. Make sure you have a working flashlight in case power goes out.
Internet/E-mail. Monitor startribune.com for updates throughout the day. Check the latest videos for more info.
Smartphone apps. Many iPhone and Android apps can display Doppler and nearby watches/warnings.
Sirens (outdoor use only). Remember, the sirens were never meant to be heard indoors.
|If you are in:||Then:|
|A structure (e.g. residence, small building, school, nursing home, hospital, factory, shopping center, high-rise building)||
|A trailer or mobile home||
|The outside with no shelter||
- Show a second way to exit from each room or area. If you need special equipment, such as a rope ladder, mark where it is located.
- Make sure everyone understands the siren warning system, if there's such a system in your area.
- Mark where your first-aid kit and fire extinguishers are located.
- Mark where the utility switches or valves are located so they can be turned off--if time permits--in an emergency.
- Teach your family how to administer basic first aid, how to use a fire extinguisher, and how and when to turn off water, gas, and electricity in your home.
- Learn the emergency dismissal policy for your child's school.
- Make sure your children know--
- What a tornado is
- What tornado watches and warnings are
- What county or parish they live in (warnings are issued by county or parish)
- How to take shelter, whether at home or at school.
1). Wall Cloud. Lowering, rotating cloud base. This "wall cloud" is where tornadoes are most likely to spin up.
2). Large hail. The larger the hail, the stronger the T-storm updraft, the greater the potential for tornadoes. I start to worry when hailstones are golfball-size or larger. Baseball-size hail? Head to the basement. Don't wait for warnings or the sirens to sound.
3). Debris visible: sparks on high-tension wires. These are additional tell-tale signs that a tornado circulation may be reaching the ground.
4). Black/green sky. A green or yellowish tint to the sky often means significant hail in the thunderhead overhead. It's not a foolproof tip-off, but trust your gut, and your instincts. If winds are increasing sharply, and large hail is falling, it's time to head for the basement, or a small, windowless room near the interior of your home or office.
* The smaller the room, the better. The more walls between you and the tornado, the better.
* no, that's not a typo: tornado chasers in southern France. That's a new one.
Photo credit above: "A high-magnification photo of a sand grain containing titanium dioxide in the form of rutile (Photo: Bob Richmond via Flickr)."
Photo credit: "(Credit: Screenshot: Chris Matyszczyk/CNET)."
- iPads account for less than 1% of all data sessions but make up 5% of total traffic."
Photo credit above: "Eating two servings of strawberries and blueberries a day can delay memory decline in older women (Photo: Shutterstock)."
"True friendship comes when silence between two people is comfortable." - Dave Tyson Gentry
Paul's Conservation Minnesota Outlook for the Twin Cities and of Minnesota:
Photo credit above: "Galileo, Alfred Wegener and Ignaz Semmelweis."
Photo credit above: "Wind turbines generating electricity at Horse Hollow Wind Farm Nolan, West Texas, the world's largest wind power project. Photograph: Alamy."
Flooding Spreads Invasive Species In Vermont, Iowa, Louisiana. Here's a snippet from a story at Huffington Post: "BETHEL, Vt. (AP) — Last year's hurricanes and flooding not only engulfed homes and carried away roads and bridges in hard-hit areas of the country, it dispersed aggressive invasive species as well. In Vermont, the floodwaters from Tropical Storm Irene and work afterward to dredge rivers and remove debris spread fragments of Japanese knotweed, a plant that threatens to take over flood plains wiped clean by the August storm. The overflowing Missouri and Mississippi rivers last year launched Asian carp into lakes and oxbows where the fish had not been seen before, from Iowa to the Iowa Great Lakes. Flooding also increased the population along the Missouri River of purple loosestrife, a plant that suppresses native plants and alters wetlands."
Photo credit above: "In this April 26, 2012, photo, Japanese knotweed grows on a stream bank in Bethel, Vt. The flood waters of Tropical Storm Irene and work to remove silt and restore roads afterward had an unintended consequence: they spread Japanese knotweed, an invasive plant that has already clogged some river banks and roadsides in Vermont. (AP Photo/Toby Talbot)."
Photo credit above: "The most energy- and carbon-efficient hotel chain in the U.S., according to Brighter Planet, is Vagabond Inn. Above, the Vagabond Inn in Long Beach (Priceline.com / April 27, 2012)."