A&O SCI 3
Meteorology and Extreme Weather
Lecture and discussion. The registrar has published a final exam time.
Winter 2027: 1 lecture and 3 discussions. All of them are open. The oldest of these readings was 5 minutes ago.
Grades
3.42
Average grade awarded in A&O SCI 3. Not a student rating: this is what the grades were.
In the A range
63%
of the 669 letter grades
D, F or W
4.5%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
15%
90% of those passed
The registrar's own records: 669 grades over 12 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
No summer session is in that record.
The table below splits them, and term averages across those 12 terms ran 2.92 to 3.70.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 108 · 16.1%
- A 246 · 36.8%
- A- 66 · 9.9%
- B+ 61 · 9.1%
- B 56 · 8.4%
- B- 36 · 5.4%
- C+ 30 · 4.5%
- C 26 · 3.9%
- C- 10 · 1.5%
- D+ 9 · 1.3%
- D 6 · 0.9%
- D- 4 · 0.6%
- F 11 · 1.6%
- P 104 of 789
- NP 12 of 789
- I 4 of 789
Percentages are of the 669 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), and incompletes (I).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Winter 2027 |
|---|---|---|---|---|---|---|---|
| CHAMECKI, MARCELO reviews ↗ | 3.45 | 3.45 | 250 | 3 | 68% | very light | instructors not assigned yet |
| MITCHELL, JONATHAN LLOYD reviews ↗ | 3.57 | 3.59 | 183 | 3 | 74% | very light | instructors not assigned yet |
| CHEN, GANG reviews ↗ | 3.48 | 3.49 | 130 | 4 | 67% | very light | instructors not assigned yet |
| BAIJNATH-RODINO, JANINE ANN reviews ↗ | 3.00 | 2.94 | 106 | 2 | 27% | - | instructors not assigned yet |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Reported assignments across instructors and terms. This term's syllabus may differ.
What the work looks like
- 2 exams, 7 mentions in past reviews
- Quizzes mentioned, no number given, 2 mentions in past reviews
- Problem sets mentioned, no number given, 1 mention in past reviews
- 4 labs, 2 mentions in past reviews
Based on 70 reviews; source checked about 2 months ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.
In Winters
Ran in 4 of the last 4 Winters.
From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Nature and causes of weather phenomena, including atmospheric global circulation, clouds and storms, lightning and precipitation, fronts and cyclones, and tornadoes and hurricanes. P/NP or letter grading.
Sections in Winter 2027
Choose an open discussion to enroll; an open lecture alone does not mean a seat is available.
Seat counts as of : the oldest of these 4 readings. Seat readings are snapshots, not live availability. Their timestamps show when dibs last checked.
-
Seats
Open90 seats left in discussions.
Lecture: 0 of 90 enrolled
Instructor
The Staff and An unnamed TA
3.42Predicted GPA
Historical records across all instructors; 669 letter gradesSeat risk
medium risk3 discussions, all open.Every discussion, with its time and seats: 3 discussions
Final enrollment, averaged across each term's sections: between 27 and 110 a term over 12 terms, summer excluded, most recently 34 in Fall 2025. That is the shape across years, not this term, which is above.
From the people who took it
Student reviews
What taking A&O SCI 3 was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.
Looking for more perspectives?
External reviews are separate and do not count toward the dibs rating.
Seats over time in Winter 2027
How each lecture has filled since dibs first saw it.
A dot is a reading where something moved: the seat count, the status, or the waitlist.
What a flat run means, and where a line starts
Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.
Lec 1 · The Staff and An unnamed TA · 0 of 90 enrolled
Same seat count, but the status went tentative to open over 2 months
All 3 readings say 0 enrolled, and the cap started being published.
How readings and alerts work
Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.
Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.
The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.