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Monsoon Recap - June 15 - Sept 30, 2014

Friday, October 17, 2014

Looking back on the 2014 monsoon, a simple characterization of the season as ‘normal’ or ‘average’ (or above or below these thresholds) is difficult, given the spatial and temporal variability of monsoon storms. The cumulative seasonal totals provide one way of characterizing the monsoon, and by those metrics, the Southwest saw an average to above-average summer rainy season, with much of Arizona and New Mexico receiving well above-average rainfall. (read more)

This post was originally published as part of the October 2014 Southwest Climate Outlook

2014/2015 El Niño Tracker: Oct 16, 2014

Thursday, October 16, 2014

An El Niño Watch, issued by the NOAA Climate Prediction Center (CPC), continues for the seventh consecutive month as signs of an emerging El Niño are just on the horizon, but not quite here yet. Another slug of warm water (also known as a Kelvin wave), has been making its way across the Pacific Ocean from west to east just below the surface and is poised to emerge and help warm sea surface temperatures in the eastern Pacific over the next month or so...(read more)

This post was originally published as part of the October 2014 Southwest Climate Outlook

Notes from an Applied Climatologist - Sept 2014 Rainlog Climate Summary

Friday, October 3, 2014

September turned out to be quite a month as far as extreme monsoon season weather across Arizona. The month started out rather quiet as the monsoon ridge of high pressure weakened and a trough of low pressure to the north ushered in dry air from the west across the state. This suppressed thunderstorm activity for several days until the monsoon ridge pushed back north helping to bring low level moisture back into the region.  (read more)

Monsoon Summary (June 15 – Sep 18)

Friday, September 19, 2014

We are nearing the end of the 2014 season, and while it is difficult to characterize the highly variable day-to-day storms of any monsoon as “normal,” we have had a fairly typical if not above-average monsoon season in terms of precipitation. Regional assessment is complicated by the effects of a few extreme events that amplified precipitation amounts in parts of Arizona and New Mexico and caused an entire month’s or year’s worth of precipitation to fall in a single storm. (read more)

This post was originally published as part of the September 2014 Southwest Climate Outlook

El Niño Tracker - Sept 2014

Thursday, September 18, 2014

The song remains the same this month with El Niño not quite here yet, but probably soon. This is now the seventh consecutive month since the NOAA Climate Prediction Center issued an “El Niño Watch” last March. The signs are a bit stronger once again, but it is getting late in the game...(read more)

This post was originally published as part of the September 2014 Southwest Climate Outlook

Monsoon Summary (June 15 - Aug 19)

Friday, August 22, 2014

The 2014 monsoon can be characterized many ways—the amount and intensity of rain has been spotty both spatially and temporally, the humidity has been persistently high, and precipitation has improved short-term drought conditions in many areas. Certainly it cannot be characterized as a dud. (read more)

This post was originally published as part of the August 2014 Southwest Climate Outlook

El Niño Watch - Aug 21, 2014

Thursday, August 21, 2014

An “El Niño Watch” continues this month as issued by the NOAA Climate Prediction Center several months ago. The watch is just that: we are waiting and watching for the development of a full-fledged El Niño event that has yet to materialize across the equatorial Pacific Ocean. Several indicators of El Nino-Southern Oscillation (ENSO) status declined, moving back towards ENSO-neutral values over the past month instead of leaning towards an El Niño event as they had been.  These shifts included slight cooling in the eastern Pacific Ocean and near-average wind patterns along the equator. But for those cheering on the development of an El Niño event, not all hope is lost (read more).

This post was originally published as part of the August 2014 Southwest Climate Outlook

1075' - Shortage on the Colorado River Ep. 5 - Tucson Water & Muncipal Water Issues

Tuesday, August 12, 2014

1075’ – Shortage on the Colorado River is a CLIMAS podcast series that explores what the first shortage declaration on the Colorado River would mean to those living in the Southwest.

In this episode, CLIMAS climate scientist Zack Guido speaks with Alan Forrest, Director of Tucson Water, about various strategies that Tucson implemented to deal with potential water shortages, the conservation and recapture efforts that areas of municipalities in Southern Arizona, and the practical realities of providing municipal water to an growing population in the southwest. (read more)

1075' - Shortage on the Colorado River Ep. 4 - CAGRD (Dennis Rule)

Tuesday, August 5, 2014

1075’ – Shortage on the Colorado River is a CLIMAS podcast series that explores what the first shortage declaration on the Colorado River would mean to those living in the Southwest.

In this episode, CLIMAS climate scientist Zack Guido talks to Dennis Rule, manager of the Central Arizona Groundwater Replenishment District (CAGRD), about the importance of CAGRD in the management of Arizona groundwater and potential impacts on the system from continued drought in the Colorado River Basin. (read more)

1075' - Shortage on the Colorado River Ep. 3 - Shortage Impacts on the CAP

Tuesday, July 29, 2014

1075’ – Shortage on the Colorado River is a CLIMAS podcast series that explores what the first shortage declaration on the Colorado River would mean to those living in the Southwest.

In this episode, CLIMAS climate scientist Zack Guido and Mohammed Mahmoud, planning analyst with the Colorado River Programs department at the Central Arizona Project (CAP), discuss the CAP and its role in delivering Colorado River water throughout Arizona, as well as how a shortage would impact the CAP system. (read more)

Southwest Climate Podcast: Strong Start for the Monsoon & Groundhog Day for El Niño Forecasts

Thursday, July 24, 2014

In the July Southwest Climate Podcast, CLIMAS climate scientists Zack Guido and Mike Crimmins talk about the solid start to the monsoon, and seemingly inevitable monsoon breaks (like we just experienced). They also discuss the "inevitability" of this fickle El Niño event. There’s a feeling of Groundhog Day with these forecasts—and there continues to be uncertainty regarding the strength and duration of this El Niño event. (read more)

1075' - Shortage on the Colorado River - Podcast Ep. 2 - Stressors on the River

Tuesday, July 22, 2014

1075’ – Shortage on the Colorado River is a CLIMAS podcast series that explores what the first shortage declaration on the Colorado River would mean to those living in the Southwest.

In this episode, CLIMAS climate scientist Zack Guido hosts three University of Arizona experts, Bonnie Colby, George Frisvold and Kiyomi Morino, to discuss water supply and demand in the Colorado River basin. This podcast explores stressors on the Colorado River Basin, how these stressors may change over time, and how these changes may affect management and behaviors across the Southwest.(read more)

Southwest Climate Outlook July 2014

Friday, July 18, 2014

The Southwest Climate Outlook is published on the third Thursday of every month, and focuses on the climate & weather patterns for the SW more generally, and Arizona and New Mexico in particular.  This month's issue includes sections on precipitation and temperature for the past month or so, reservoir totals for AZ & NM, drought and monsoon trends, a summary of the fire season, an El Niño watch, and a look forward at the precipitation and temperature outlook for the next 30-90 days (read more).

1075' - Shortage on the Colorado River, A CLIMAS Podcast Series

Monday, July 14, 2014

1075’ – Shortage on the Colorado River is a CLIMAS podcast series that explores what the first shortage declaration on the Colorado River would mean to those living in the Southwest.

In this episode, we take a broad view of the Colorado River Basin, exploring how the river is managed, who uses the water, and what a potential shortage could mean for the system. Our guest is Doug Kenney, Director of the Western Water Policy Program, a division of the Getches-Wilkinson Center for Natural Resources, Energy and the Environment, at the University of Colorado School of Law.  (read more)

Recent Variations in Low-Temperature and Moisture Constraints on Vegetation in the Southwestern U.S.

Friday, April 19, 2013

Dr. Jeremy Weiss, a senior researcher with UA’s Environmental Studies Laboratory, will discuss the importance of seasonality and elevational gradients for understanding the effects of drought and warming on vegetation in topographically complex regions like the Southwest, and explain how projected changes in future regional climate may potentially further or alter these effects. (read more)

Field of Dreams, or Dream Team? Assessing Two Models for Drought Impact Reporting in the Semiarid Southwest

Friday, March 22, 2013

To make decisions about drought declarations, status, and relief funds, decision makers need high quality local-level drought impact data. In response to this need in Arizona, the Arizona DroughtWatch program was created, which includes an online drought impacts reporting system. Despite extensive and intensive collaboration and consultation with the intended public participants, Arizona DroughtWatch has had few consistent users and has failed to live up to its goal of providing decision makers or the public with high quality drought impacts data. (read more)

Drought Impacts on Dust and Health in New Mexico

Friday, March 1, 2013

Dust storms create both health issues and transportation hazards. Valley Fever is endemic to the border region and gets carried with the dust. Interstates and local highways are often closed for hours in an attempt to avoid accidents and injuries. Windblown dust concentrations can be very high when strong winds occur during extended droughts - creating “exceptional episodes” of poor air quality. Air quality in rural areas of New Mexico and along the US/Mexico border is normally acceptable and well below the US EPA’s air quality standards for particulate matter. But these episodes expose millions of people to particulate levels that exceed air quality standards. (read more)

Southwest Climate Podcast: Arizona "Blizzard" - Drought Remedy?

Friday, February 1, 2013

Was the "blizzard" in February unprecedented for Arizona, and did climate change play any role? In this month's podcast, Gregg Garfin and Zack Guido discuss this and the influence the storm and recent temperatures had on the state's snowpack. They also explore the status of drought in both Arizona and New Mexico, and what the precipitation forecast looks like for the next few months.