12 May 2015

May storms don’t mean hurricane season should start earlier

Since we just had Tropical Storm Ana form last week, the question arises: should we move up the start date of the official hurricane season?  I chime in for this Capital Weather Gang post on the topic:

Hurricane Center: May storms don’t mean hurricane season should start earlier



11 May 2015

Ana weakens over land, still spinning over North Carolina

Since my last update on Friday morning, Tropical Storm Ana made landfall near Myrtle Beach, SC early Sunday morning with maximum sustained winds of 45 mph.  While this may not seem like a significant event, to the best of my knowledge, this was the strongest U.S. landfall so early in the season.

During the course of Ana's passage, peak rainfall and wind gusts reports include 4.3" of rain at Myrtle Beach SC, and a gust to 62 mph in Southport NC.  Strong rainbands have also been raking areas further east in North Carolina. The graphic below shows the estimated rainfall between Friday at 8am through today at 8am.

Estimated three-day rainfall totals spanning Fri 8am through Mon 8am. (NOAA)
 The radar and satellite images below were captured from very near the time of Ana's landfall:

Radar image of Ana near the time of landfall. (College of DuPage)
Satellite image of Ana near the time of landfall. (CIRA/RAMMB)
As of this writing at 8am EDT, the center of Ana's remnants is still very well defined and is located about 50 miles east of Raleigh NC. Periods of heavy rain and gusty winds will affect central and eastern NC today, and up into VA and the DelMarVa peninsula as well.  You can view a current regional radar loop here.  This storm's development and track was remarkably well-forecast by global models going back 8 or so days... sometimes it's nice to not have surprises!

Visible satellite image from 7:45am EDT showing the cloud field associated with the remnants of Ana. (RAL)
As a reminder, hurricane season officially begins on June 1, and the next name on the list is Bill.


08 May 2015

Subtropical Storm Ana will bring days of unsettled weather to the Carolinas

Subtropical Storm Ana has formed from the area of disturbed weather I've been discussing all week.  My morning update on it and the forecast can be found on the Washington Post's Capital Weather Gang blog:

Subtropical Storm Ana will bring days of unsettled weather to the Carolinas