Tropical Depression vs Storm Wind Classifier

Named34/64knot tropical wind stage screen, caller independently verifies tropical cyclone identity and agency averaging period; hurricane-force wind not inferred hurricane identity. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.

Description

A tropical wind-stage screen uses a declared maximum sustained wind convention.

A tropical wind-stage screen uses a declared maximum sustained wind convention.^{[1, 2]}

Wind speed alone does not establish cyclone identity or an official warning.

When to use Tropical Depression vs Storm Wind Classifier

Use this tool to calculate or review the supplied observations under the stated rules. Match the observation method, units, averaging period and independently established reference.

How to use Tropical Depression vs Storm Wind Classifier and understand its results

Match the observation method, units, averaging period and independently established reference.
Enter independentAgencyAveragedMaximumWindKnots, using the field meanings and rules below, then run the tool.
Read namedWindStage. Inspect nested result fields where present, and review unknown records separately from known matches.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
independentAgencyAveragedMaximumWindKnots	Independent agency averaged maximum wind knots	number	Required

Use a nonnegative independently agency-averaged wind speed in knots. Below 34 returns tropical depression; 34 inclusive to below 64 returns tropical storm; 64 and above returns hurricane-force wind. Fractional speeds are accepted.

stage=depression if wind<34, storm if 34≤wind<64, hurricane-force wind otherwise

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
namedWindStage	Named wind stage	string

json

{
  "input": {
    "independentAgencyAveragedMaximumWindKnots": 40
  },
  "output": {
    "namedWindStage": "tropical storm"
  }
}

Limitations and assumptions

The observations and reference conditions must be independently established. This result is a record summary or stated model screen, not an official warning or a validated event forecast.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite.

Alternative or Complementary methods

For a related step, use Supercell Composite Parameter Calculator: The effective-layer supercell composite combines instability, helicity and wind shear terms. For a complementary comparison, use Zonal Index Circulation Strength Calculator: A zonal circulation index can summarize eastward flow around a matched ring.

References

Tropical Depression vs Storm Wind Classifier — tool.io
Glossary of terms — National Hurricane Center

Similar or alternative tools

Supercell Composite Parameter Calculator
The effective-layer supercell composite combines instability, helicity and wind shear terms.
Zonal Index Circulation Strength Calculator
A zonal circulation index can summarize eastward flow around a matched ring.