Jun 212015
 
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I think I mentioned several times last summer NOAA’s GFS model predictions of the monsoon season impressed me.They seemed remarkable accurate. I say seemed, because I don’t think I ever did or saw any statistical analysis to prove it. We will see how they do this year.

For now, the model has the season walking slowly up to the season. If you remember last summer it started in earnest. This year, I think we will start to some thunderstorm action at the end of this week, but probably not the real start until closer to the 4th of July. This is normal.

The current El Nino conditions and the warm blob off the coast of California continue to cause me some concern. The image below is the most recent global sea surface anomaly picture from NOAA. There is plenty of warm water to generate the moisture needed for a strong monsoon season. I still worry that jet stream winds might not cooperate One of the reasons there are few strong Atlantic hurricanes in El Nino conditions is due to the high level winds that shear the tops of the clouds off as storms develop in the Atlantic or the Gulf of Mexico. Could these winds impede our monsoon season?

I don’t know. Also, I don’t think there is any clear data on any effect from El Ninos on monsoon precipitation. We will have to wait and see. For now, enjoy summer. The warm temperatures may not last long.

Global sea surfce temperature anomaly, June 18, 2015. (NOAA)

Global sea surfce temperature anomaly, June 18, 2015. (NOAA)

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