Great Basin Precipitation Watch

The Great Basin Precipitation Watch page provides access to recent precipitation and other weather maps and outlooks, summaries, and data (see below) covering Nevada and the Great Basin. Data for the most recent week, month(s), water year (October 1 - September 30), and some past years are available. These tools are intended to assist those trying to determine current and near-term field conditions anywhere in the area covered.

All of the data linked to this page are derived, directly or indirectly, from the National Oceanographic and Atmospheric Administration's (NOAA) National Climate Prediction Center (NCPC), National Climatic Data Center (NCDC), the affiliated Western Regional Climate Center (WRCC), the Desert Research Institute (DRI) of the University of Nevada at Reno (UNR), the USDA Natural Resources Conservation Service (NRCS), and cooperating agencies and weather observers.

PLEASE NOTE WMO Resolution-40 NOAA Policy (emphases added): "The following data and products may have conditions placed on their international commercial use. They can be used within the U.S. or for non-commercial international activities without restriction. Re-distribution of these data by others must provide this same notification. A log of IP addresses accessing these data and products will be maintained and may be made available to data providers.

Radar-based Cumulative Precipitation Maps (or current radar):

loop for last 2 hours

cumulative last 24 hours

cumulative last 7 days

Precipitation Anomaly Maps and Forecasts (percent of 1971-2000 averages):

 

Time Period	U.S. / North America	Western U.S.	Nevada
90-day outlook	CPC probability CPC drought outlook
30-day outlook	CPC probability
8-14-day outlook	CPC probability
6-10-day outlook	CPC probability
past 7 days		ACIS data	ACIS data
past 14 days		ACIS data	ACIS data
past 30 days	CPC realtime monitor	ACIS data	ACIS data
past 60 days		ACIS data	ACIS data
past 90 days	CPC realtime monitor	ACIS data	ACIS data
past 6 months	CPC realtime monitor	ACIS data	ACIS data
past 12 months	CPC realtime monitor	ACIS data	ACIS data
water year (since Oct. 1)		ACIS data WRCC SNOTEL data	ACIS data

CPC = National Climate Prediction Center; WRCC = Western Regional Climate Center; ACIS = Applied Climate Information System 

U.S. Drought Monitor

Standardized Precipitation Index (explanation) for U.S. climate regions for the past:

1 2 3 4 5 6 or 9 months, or

1 2 3 4 5 or 6 years

Snowpack and Precipitation Anomaly Update Tables from mountain SNOTEL sites

Great Basin

Western U.S.

SEA SURFACE Temperature and Anomaly Maps

• Daily Water Surface Temperatures
• Daily Water Surface Temperature Anomaly
• 7-day, 30-day, & 60-day Water Surface Temperature Anomaly
• El Niño/La Niña Current Status
• Further Information on El Niño/Southern Occillation (ENSO)

LAND Temperature Anomaly Maps and Forecasts (°F from 1971-2000 averages):

 

Time Period	U.S. / North America	Western U.S.	Nevada
90-day outlook	CPC probability
30-day outlook	CPC probability
8-14-day outlook	CPC probability
6-10-day outlook	CPC probability
past 7 days	CPC realtime monitor	ACIS data	ACIS data
past 14 days		ACIS data	ACIS data
past 30 days	CPC realtime monitor	ACIS data	ACIS data
past 60 days		ACIS data	ACIS data
past 90 days	CPC realtime monitor	ACIS data	ACIS data
past 6 months		ACIS data	ACIS data
past 12 months		ACIS data	ACIS data
water year (since Oct. 1)		ACIS data	ACIS data

CPC = National Climate Prediction Center; WRCC = Western Regional Climate Center; ACIS = Applied Climate Information System 

Sources for Additional Recent Climatic Data:

Current observations, forecasts, and monitoring data from the Western Regional Climate Center

Climatic data for any station world-wide

Climate, Ecosystems and Fire Applications (CEFA) from the Desert Research Institute

Drought Monitor map and summaries for the U.S.

Monitoring Data from the National Climate Prediction Center