Expert Witness Testimony & Legal Applications in Meteorology Flashcards

Under Federal Rule of Evidence 702, what is the primary standard a meteorologist must meet to qualify as an expert witness?

Answer: Have specialized knowledge, skill, training, or experience that will help the trier of fact

FRE 702 requires that the expert's scientific, technical, or other specialized knowledge will help the trier of fact understand the evidence or determine a fact in issue.

What is the Daubert standard primarily used to assess in U.S. federal courts?

Answer: Whether expert scientific testimony is based on reliable methodology

Daubert v. Merrell Dow Pharmaceuticals established that federal judges act as gatekeepers to ensure expert testimony rests on a reliable scientific foundation and valid methodology.

A CCM serving as an expert witness is retained by the defense in a personal injury case. What is the CCM's primary obligation?

Answer: To provide objective, truthful opinions based on sound meteorological science regardless of which side retained them

An expert witness's duty is to the court and the truth, not to the retaining party; providing biased or advocacy-driven testimony violates professional ethics and can expose the expert to sanctions.

Which document formally outlines an expert witness's opinions, the basis for those opinions, and the data considered prior to trial?

Answer: Expert witness report (Rule 26 report)

Federal Rule of Civil Procedure 26 requires a written expert witness report disclosing all opinions, the basis and reasons for them, the facts or data considered, and the expert's qualifications.

During a deposition, opposing counsel asks a meteorological expert a question that assumes a fact not yet in evidence. The best response is to:

Answer: State that the question assumes a fact not in evidence and ask for clarification before answering

An expert should identify and address flawed premises in questions to ensure their testimony is accurate and not misleadingly extracted from context.

When reconstructing past weather conditions for litigation, which source is generally considered the most authoritative for official surface observations in the United States?

Answer: NOAA/NWS Automated Surface Observing System (ASOS) records archived in the NCEI database

NOAA's National Centers for Environmental Information (NCEI) archives quality-controlled ASOS/AWOS data that represent the official climatological record and carry high evidentiary weight.

A meteorologist is asked to opine on whether a specific wind gust caused structural damage on a given date. The most scientifically defensible approach is to:

Answer: Integrate multiple data sources (surface stations, radar, mesoanalysis, damage surveys) and quantify uncertainty in the wind estimate

Triangulating multiple independent data sources and explicitly addressing uncertainty strengthens the scientific reliability of the reconstruction and satisfies Daubert scrutiny.