Friday, January 29, 2010
New Weather Blog Location!!
~KDLT Meteorologist Cody Matz
Thursday, January 28, 2010
The Weather-people are Always Wrong...Maybe Not Always
"The highly specialized twin turbofan jet will be stationed at Yokota Air Force Base in Japan through February before repositioning to Honolulu in March. From these locations, the aircraft will be tasked by the National Centers for Environmental Prediction — a division of NOAA’s National Weather Service — to fly into data sparse regions to collect information such as wind speed and direction, pressure, temperature and humidity. This data will be sent via satellite to global operational weather forecasting centers — and fed into sophisticated computer forecast models.
“These flights will help us better observe and understand the current state of the atmosphere over the Pacific, where most of North America’s weather originates, in order to better predict future conditions across the U.S. and Canada three to six days in advance,” said Louis Uccellini, Ph.D., director of the National Centers for Environmental Prediction in Camp Springs, Md.
These computer model improvements will play an essential role in meteorological support for the Winter Olympics in Vancouver in addition to more precise precipitation forecasts along the U.S. West Coast and points further east.
NOAA incorporated the Japan-based missions into its annual Winter Storms Reconnaissance program in early 2009 — flying 332 flight hours and logging miles equivalent to circling the Earth five times. Prior to 2009, missions were flown from Alaska, Hawaii and the U.S. West Coast. By expanding the reach across the International Date Line to Japan, NOAA is essentially pushing farther upstream to observe areas of interest with greater lead times.
These missions showed significant positive impact to global numerical weather prediction models, increasing both accuracy and lead times for high-impact weather events. For example, model forecasts of precipitation amounts improved, on average, 10 to 15 percent.
The high altitude, high speed NOAA Gulfstream IV is based at the NOAA Aircraft Operations Center, located at MacDill Air Force Base in Tampa, Fla.NOAA understands and predicts changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and conserves and manages our coastal and marine resources. "
Wednesday, January 27, 2010
Coldy is Back!
Tuesday, January 26, 2010
Staying Cold
Interstates Opening
Keep tuned onto KDLT, we'll update the closings ticker on the bottom of the screen throughout the day with more updates about the interstates.
Monday, January 25, 2010
Blizzard Today
A Blustery, Blustery Day
Sunday, January 24, 2010
Winds of Change, Really...
Here's the strong Wind gusts:
What we can expect to see Monday morning when the winds should be at their strongest. This is when gusts can exceed 50 mph in all locations.
~KDLT Meteorologist Dan Bronis
Saturday, January 23, 2010
Whats Ahead
Out towards the west very little rain as this Storm has been an eastern weather maker so far. Mobridge saw less than a tenth inch of rain and Chamberlain is the only town that saw over a quarter inch of rain out towards the west. Some totals were actually very impressive: Sioux Falls, Spencer, Watertown and Sisseton were all over three tenths a inch with some freezing rain; Which caused ice to build up on power lines and trees, but no major damage with this storm, a few power outages in some locals.
Snow will start to fall as the low moves off to the east and we see northwest winds pick up in the area. Light snow fall is expected with the extreme north seeing the most snowfall, four inches tops. Winds will be the main problem in all areas, sustain winds easily topping 40 mph and gusts over 55 possible.
The strongest winds will occur Monday morning but the winds will start Sunday morning and last till Tuesday morning. This model picks up on the strong winds but I do believe they will be stronger then what this shows. Blowing snow will cause low visibilities, and the high winds/ice on the roads can cause cars to slide off and create accidents. Use caution and be prepared!
Were not done yet with this storm, come Tuesday we can see sunny skies and calmer winds. But temperatures will not be very pleasant, highs in the teens for Tuesday and Wednesday.
~KDLT Meteorologist Dan Bronis
Friday, January 22, 2010
The Weekender
So why are we seeing so much rain and freezing rain?? Well here's that answer. Temperatures and moisture have to be just right to form snowflakes. Its actually a very complicated process and they don't come from rain droplets freezing. That's sleet or in the summer time its hail. But when you have snow that develops and starts falling through the atmosphere, the entire column of air that the flake travels through must be below freezing for the flake to reach the ground. Well, when you have air that's about 45 degrees, for example, at 5000 feet, then the flake is going to melt into a raindrop. It will then continue to fall through the atmosphere as a raindrop all the way down to the surface. Well, if the surface happens to be below freezing, then that's when you get freezing rain. If you look at the picture below, of the temperatures at 5000 feet, you should notice something pretty quickly.
The temperatures at 5000 feet this evening are well over freezing. In fact, they are in the upper 40's in some spots. That is what melts the snowflakes and causes our freezing rain. Stay safe out there!!~KDLT Meteorologist Cody Matz
Weekend Update
Here's a radar image of the little activity seen across the region this morning:
There was a little mixed precip located near the South Dakota border and Nebraska, that should start to build up over the next few hours and effect the central portions of the state (Pierre, Mobridge, Aberdeen) with freezing rain and snow, by the mid afternoon hours. The eastern portion of South Dakota won't see much activity until the later afternoon hours and most of that will be rain/freezing rain with temperatures near freezing.
Friday night into Saturday will be the main threat for freezing rain. Accumulations can be expected with a half an inch tops in some locations. That will switch over to snow by Saturday night into Sunday. Be careful on the roads and stay in if it is not a necessity to leave, it will be dangerous with ice build up expected.
~KDLT Meteorologist Dan Bronis
Thursday, January 21, 2010
Rain in January??
So when and where are we going to see all of this happen? Well, I have mentioned before that a picture is worth a thousand words, well this should explain a lot.
Weekend Winter Woes
This system will affect the other half of our viewing area as well. But temperatures will stay colder and while this system will bring some freezing rain to the northern half of the state, we will see more snow in those areas from this storm from Saturday and Sunday. Locally, we could see up to a foot of snow in the northwest section of the viewing area and lighter amounts to the south. The reason for lighter amounts down south is because the precip. type in the south, again, is going to be more freezing rain and then changing to snow by Sunday.
Make sure you have a good scraper and shovel for this weekend!
~KDLT Meteorologist Jesse Ritka