Rainfall Update and Redoubt

Just a quick update to the rain statistics posted yesterday.

As of 5:00pm, Saturday, April 4, 1.59 inches of rain has been measured at BWI-Marshall Airport for the month of April, a surplus of 1.16 inches. The precipitation for 2009 to date is 6.65 inches, a deficit of 4.2 inches.

The NOAAS/NASA satellite image below shows that the Mid Atlantic region is between the departing storm to the north and a new storm to the west. For the rest of the weekend this means good weather.


More rain is on the way. A large scale storm is churning across the Plains, producing winterlike conditions in many areas. By Monday it should be a rain maker over the East Coast.

qpfEarly computer model estimates place the Monday rain potential at .5 to .75 inches. Unfortunately, this rain may have an impact on the O’s Opening Day game on Monday afternoon. Keep your fingers crossed.

A final note … Mt Redoubt, a volcano southwest of Anchorage had another significant eruption on Friday. The satellite image below tells the story.


Picture Date: April 04, 2009 14:45:00 UTC 
Image Creator: Bailey, John; 

Image courtesy of the AVO/UAF-GI…Alaska Volcano Observatory / University of Alaska Fairbanks, Geophysical Institute

The AVO explains the image this way: “Infrared satellite image captured by AVHRR (Advanced Very High Resolution Radiometer) at 14:45 UTC (06:45 am ADT). The darker area is the ash cloud emitted from Redoubt during the explosive event that began at approximately 5:55 am, April 4, 2009 (ADT)”.

There is a fascinating picture gallery of the Redoubt eruptions on the AVO website …  http://www.avo.alaska.edu/activity/Redoubt.php

Among the most fascinating is the one below.


Picture Date: March 26, 2009 17:30:00 UTC 
Image Creator: Dehn, Jonathan; 

Image courtesy of the National Weather Service.

The view is of the edge of the earth and shows the dark ash cloud poking up into the higher levels of the atmosphere. The photo caption supplied by the AVO is: “Ash cloud seen in the geostationary MTSAT data, courtesy of the National Weather Service, processed by the Cooperative Institute for Meteorological Satellite Studies at the University of Wisconsin-Madison . We are at the extreme edge of the view for the satellite which is over the equator in Asia”.

What a view!

John Collins


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