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Monsoon Summary Jun 15-Aug 20

Friday, August 21, 2015

Originally published in the August 2015 CLIMAS Southwest Climate Outlook

The monsoon started off early and strong with several widespread thunderstorms in late June and early July, especially in Arizona, which recorded its second wettest June on record.  Precipitation tapered to some extent in July in Arizona but continued to be frequent and widespread in New Mexico, which recorded its 10th wettest July on record (Figs. 1a-2a). (read more)

El Niño Tracker - August 2015

Friday, August 21, 2015

Originally published in the August 2015 CLIMAS Southwest Climate Outlook

El Niño conditions continued for a sixth straight month and forecasts and the most recent outlooks offer a consistent cluster of forecasts calling for a clear El Niño signal similar to past strong events, lasting into early 2016. Forecasts focused on the persistence of sea-surface temperature (SST) anomalies (Figs.1–2) and on weakened trade winds, ongoing convective activity in the central and eastern Pacific, and El Niño-related ocean-atmosphere coupling. (read more)

Image Source - Australian Bureau of Meteorology

El Niño Tracker - July 2015

Monday, July 20, 2015

El Niño conditions continue for a fifth straight month, and at this point, forecasters are relatively bullish that we are witnessing the development of a moderate-to-strong event that could rival 1997 in absolute magnitude later this year. The most recent outlooks from various sources offer a consistent cluster of forecasts calling for a clear El Niño signal that is maintained or even strengthens well into early 2016. Forecasts focused on the persistence of sea-surface temperature (SST) anomalies (Figs.1 - 2) along with weakening trade winds, ongoing convective activity in the central and eastern Pacific, and El Niño-related ocean-atmosphere coupling. (read more)

Image Source - Australian Bureau of Meteorology

Monsoon Summary - (June 15 - July 16)

Thursday, July 16, 2015

After a few anomalous incursions of tropical moisture in early June, we saw an early beginning to the monsoon in mid- to late June, a few weeks ahead of the typical start date (Fig. 1). Regional dewpoint/humidity readings for June illustrate the multiple incursions of tropical moisture, followed by the onset of monsoon conditions later in the month (Fig. 2). (read more)

Heidi Brown (CLIMAS PI) & Joceline Lega win DARPA Chikungunya Virus Forecasting Competition

Wednesday, July 8, 2015

Full version of this story originally appeared in the UANews on July 1, 2015


A UA team (including our very own Heidi Brown) has won an international competition for its work developing methods for advanced forecasting of infectious disease. (read more)

More info on the DARPA Forecasting Chikungunya Challenge

June 2015 SW Climate Podcast - Tropical Storms, Monsoon, Wildfire & El Niño

Wednesday, July 1, 2015

In the June 2015 edition of the CLIMAS SW Climate Podcast, Mike Crimmins and Zack Guido recap the month of June, including the quick transition from cool and wet to hot and muggy conditions.  The discuss the impact of tropical storms on the region, the early start to this season, and what this may or may not mean in terms of relationship to monsoon patterns.  They turn to El Niño, and the impact the El Niño signal may be having on the region, both looking back at the past few months, but in particular looking forward at what this could mean for the southwest in terms of precipitation patterns over the next 12 months. (read more)

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