Dr. Curtis N. James, Ph.D.

Dr. Curtis N. James, Ph.D.

Curtis N. James, Ph. D. Is a Professor of Meteorology at Embry-Riddle Aeronautical University in the Department of Applied Aviation Sciences.

He has taught courses in beginning meteorology, aviation weather, thunderstorms, satellite and radar imagery interpretation, atmospheric physics, mountain meteorology, tropical meteorology and weather forecasting techniques for over 16 years. He participates in ERAU’s Study Abroad program, offering alternating summer programs each year in Switzerland and Brazil.

He earned a Ph.D. in Atmospheric Sciences from the University of Washington (2004) and participated in the Mesoscale Alpine Programme (MAP; 1999), an international field research project in the European Alps. His research specialties include radar, mesoscale, and mountain meteorology. He earned his B.S. in Atmospheric Science from the University of Arizona (1995), during which time he gained two years of operational experience as a student intern with the National Weather Service Forecast Office in Tucson, Arizona (1993-1995).

Dr. James is a native of Arizona where he currently resides with his wife and five children. He is active in his community, having served on the Prescott SciTechFest Advisory Committee and as a Board Member for the Children's Museum Alliance, Inc. On his spare time, he enjoys weather watching, backpacking, camping, fishing, caving, mountain biking, acting, and music. He is an Eagle Scout and serves as the scoutmaster for a local scout troop.

This week will be great kite flying!

Published in Azeducation.news

Expect unsettled weather this week!

Big Idea

  • Cloudy and cooler by Tuesday
  • Windy for the first part of the week
  • Rain showers expected
  • Highs in the 50’s - 70’s this week
  •

Isn’t it amazing how variable the weather can be in Prescott during the Spring?

Becoming mostly cloudy and much cooler by Tuesday. Windy, with SW gusts up to 30-40 mph this afternoon, shifting and relaxing to W or NW breezes by Tuesday evening. A good chance of rain showers or even weak thunderstorms expected this evening through Tuesday. Possibly some wet snow or snow pellets on Tuesday morning (with little or no snow accumulation expected). Highs dropping from the mid 60s today to the lower 50s tomorrow. Lows dropping from the 50s this morning to the mid 30s on Tuesday and Wednesday.

Becoming mostly sunny for the remainder of the week, with gradual warming back up to the upper 60s to 70s Thursday though the weekend. Lows warming to near 40 degrees. Some afternoon breezes and high clouds possible, especially on Thursday and again on Sunday.

Forecast Table:


Navigate on the map to your location and click for a detailed local forecast.


Isn’t it amazing how variable the weather can be in Prescott during the Spring? Last Friday, we hit a high of 79 F at the Prescott airport, which was an all-time record for that date. We also had a high of 79 on Saturday (but it was not a record). In contrast, Tuesday and Wednesday will be cooler than normal and we should receive some much needed moisture.

An upper-level low will swing across the state tonight through tomorrow and produce some decent lifting over our region. At the surface, low pressure will develop over Nevada and Utah, with a cold frontal band swinging across Arizona by mid or late morning on Tuesday. This system will tap into enough moisture for light to moderate precipitation, totaling between 0.1” and 0.6” liquid water equivalent for the Quad City area by Tuesday evening. Also, expect breezy to windy conditions and significant cooling. Enough instability will develop for possibly some weak thunderstorms tonight to tomorrow morning before the passage of the surface cold front. We may also see some wet snow flurries or graupel/snow pellets in the heavier showers on Tuesday morning, but accumulation (if any) will be light and should have little impact on travel. Some snow accumulation will be possible in the higher elevations around town. 

Graupel is a form of precipitation where snowflakes become heavily iced (or rimed) by collisions with liquid drops colliding with and freezing onto the particle. Graupel is white and brittle in appearance, is associated with stronger updrafts and unstable air, and when it grows larger than pea-sized, we call it hail. In colder showers, the graupel can often appear like balls of Styrofoam falling to the ground. This type of graupel is termed “snow pellets”. 

I often hear people in Arizona use the term “sleet” when referring to snow pellets, but this is a misnomer. Sleet is very rare here, and it appears more clear and solid in appearance (rather than white and brittle like graupel). Sleet usually forms in advance of a warm front when warm air rides over colder air, melting and then refreezing falling snow flakes into clear balls of ice. 

As this storm system opens and spreads eastward across the country, we may hear reports of more severe weather (damaging wind, large hail, or tornadoes) as it interacts with moist, unstable air and creates strong vertical shear over the Southern Plains tomorrow, the Southeast on Wednesday, and the mid-Atlantic coast on Thursday. 

C. James


Curtis N. James, Ph.D.
Professor of Meteorology

Applied Aviation Sciences

Prescott Campus

Met Mail is an unofficial weather discussion and forecast transmitted once or twice a week via e-mail by the Embry-Riddle Department of Meteorology (http://meteo.pr.erau.edu/). Embry-Riddle offers an undergraduate bachelor-of-science degree program in Applied Meteorology. Please spread the word to all potential qualified candidates!

Further Information:

ERAU Applied Meteorology degree program

Official National Weather Service forecast

Embry-Riddle Aeronautical University: Website | Facebook | Twitter | YouTube

Published in Azeducation.news

It’s going to be beautiful – until Thursday

Published in Azeducation.news

Winter Weather is Here

February 22, 2022

We’re looking at wintry weather this week!

Published in Azeducation.news

Mostly sunny, no precipitation expected

Precipitation is unlikely this week.

Published in Azeducation.news

Weather update from Embry Riddle

Published in Azeducation.news

It’s almost a carbon copy of last week!

Published in Arizona News

Expect dry, clear and breezy weather this week.

Published in Azeducation.news

We’ll get some snow Monday night into Tuesday afternoon, but the rest of the week looks lovely.

Published in Azeducation.news
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