1:10am CDT Sunday BULLETIN on Hurricane Irma

By -
Irma is clearly strengthening. 
The National Hurricane Center says it has reattained
Category 4 Wind Status

The highest winds are about 6-7 hours from Key West (circled) and the rest of the Keys. If you have decided to stay in the Keys (I hope you didn't) please hunker down immediately!
The "danger" area is consistent gusts of about 80 mph (a person cannot stand in winds of that speed) with much stronger gusts and extreme is where the sustained winds are above 100 mph. Storm tides are already about +1 feet in the Keys. They will rise the rest of the night.

The latest Hurricane Hunter report measured sustained winds of 130 mph near the eye (with stronger gusts) which is consistent with Doppler radar measurements.

If you did not evacuate and are in the Keys it is much too late. So, I suggest the following:
  • Close all of the doors in your home or apartment. 
  • Shelter in the interior of your dwelling. For example, a bath or closet.
  • Unlike in a tornado, do not go to the lowest floor because of the severe threat posed by the storm surge. Stay at least on the second floor. 
Map of forecast wind field in knots. 100 knots = 115 mph.
click to enlarge
Speaking of tornadoes, a tornado watch continues until noon Eastern time.
For now, if you are on the Florida Peninsula and a tornado warning is issued, shelter on the lowest floor. That advice will be invalid as the storm surge advances.

For my complete coverage, please follow me @usweatherexpert . 

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