Major Early Winter Storm Developing -- Travelers Beware

By -
Things look a bit worse than this morning. Here are the latest advisories from the National Weather Service. Graphic updated at 4:47pm CDT. 



Orange indicates blizzard warnings over a good part of eastern Colorado, northwest Kansas, and far southwest Nebraska. This includes Interstates 70, 76, and 25, parts of which will likely be closed by the storm. Addition 4:47pm: Essentially, a blizzard warning is in effect along I-70 from Denver International Airport east to Colby, KS. 

The pink is a winter storm warning which includes Denver International Airport that will get high winds and 4-8 inches of snow. Delays and/or cancelled flights are likely! Here is my Airline Survival Guide.

For the timing, here are some experimental simulated winterized radar products from Dr. Ryan Maue:
The blues = snow and the lighter the blue, the heavier the snow.  This chart is valid at 6am MDT tomorrow morning.

By tomorrow afternoon at 4pm CDT, the snow -- quite heavy -- moves out into the High Plains. Given the recent warm ground temperatures (it is currently 74° in Wichita and 67° in Garden City, KS) it is questionable how much will stick but visibility will be low in heavy falling and blowing snow.


AccuWeather has even more on this developing storm.

Because it has been so warm lately, I'm concerned this is going to be a sucker punch to the region. If you have friends or relatives planning to travel into these areas, please let them know so they can make an informed decision whether to risk it. I wouldn't.

Comments

Post a Comment

Popular posts from this blog

Hilary's Forecast Path Shifts West; Updated 9:20am PDT

By -
Image
The forecast path of the center of Hilary has shifted a bit to the west. This increases the threat to the Southland, especially in terms of flooding.  Rainfall Note the heavy rains are forecast for Los Angeles County. Serious flash flooding may result. Because the forecast path has shifted to the west, that increases the threat of serious flooding in Los Angeles County north into Yosemite and the southern Sierra. It lessens the threat in Utah and western Arizona. While the threat of widespread flooding in Utah and Arizona lessens, note that some thunderstorms with localized heavy rain show up on the map.  In Nevada, the more western path increases the risk of serious flooding around Mt Charleston and into the central part of the state.  Here is the updated  (9am PDT) flash flood risk map. Wind There are already about 40,000 people without power in California, mostly in the center of the state.  The maps above are the peak gusts forecasted with the storm. The highest winds, in general,
Read more

Dangerous Travel Conditions - People Reportedly Stranded

By -
Image
-- Note, more current info available. Scroll up. --- Updated Information as of 8am PDT You are risking your life if you attempt to travel through the purple area.  While the rain has not begun in coastal California, I would urge you to use this time to make any preparations. Power outages have occurred already in southeast California. Here is the latest radar as of 7:55am PDT. As of 6:40am PDT , the radar indicates moderate to heavy rain falling over desert areas of Southern California and far western Arizona (click to enlarge).  Rainfall amounts for the 24 hours ending at 7am PDT show more than two inches have already fallen. There are reports from reliable sources that roads are already washed out and that people are stranded in isolated parts of the desert.  Below is a high-resolution computer model's rainfall forecast from 5am PDT to 11pm PDT Sunday. More than a foot of additional rain is forecast to fall. This will lead to catastrophic flooding.  Here is a map of current watc
Read more

Update on Tornado and Wind Potential; 12 Noon PDT

By -
Image
There was at least one tornado and at least one funnel cloud yesterday.  --- original forecast --- Hilary (the swirly symbol) continues to move NNW paralleling the coast of Baja California, Mexico. The area outlined in red has a significant risk of tornadoe s the rest of the afternoon.  Below is a list of peak wind gusts so far.  Peak winds may increase farther north as the afternoon progresses.  Addition at 12 noon PDT: Sure enough, winds have increased.  Note: If you are in the San Diego area, I recommend not  traveling east on I-8. Heavy rains may cause flash flooding that will involve the highway. 
Read more