PACAFI15-101 — Weather Support For Pacaf

PACAFI15-101 governs weather support for Pacific Air Forces and forces from other commands operating in the PACAF area of responsibility.

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  • Publication number: PACAFI15-101
  • Title: WEATHER SUPPORT FOR PACAF
  • Date: 2023-02-17

View PACAFI15-101 on armypubs.army.mil


PACAFI15-101 addresses weather support designations, employment, commander and Air Operations Center responsibilities, and Tropical Cyclone Reconnaissance Network operations. It also requires satellite assignments, radar data collection, tropical cyclone reporting, and support for tropical cyclone warnings.

Applies to: This publication applies to all PACAF weather units and other units maintaining PACAF systems supporting the TCRN.

Topics covered

  • Weather support designations
  • Weather support employment
  • Air Operations Center weather specialty teams
  • Tropical Cyclone Reconnaissance Network
  • Satellite assignment
  • Radar support and data collection
  • Tropical cyclone reporting

Questions and answers

What is JTWC’s area of responsibility?

JTWC’s area of responsibility (AOR) is from the East Coast of Africa to the West Coast of the Americas.

Who issues civil tropical cyclone forecasts north of the equator between 180° and 140° W?

CPHC issues civil tropical cyclone forecasts/advisories north of the equator between 180° and 140° W.

Who issues civil tropical cyclone forecasts north of the equator between 140° W and the West Coast of the Americas?

NHC issues civil tropical cyclone forecasts/advisories north of the equator between 140° W and the West Coast of the Americas.

When does JTWC retain responsibility for issuing tropical cyclone warnings?

JTWC retains responsibility for issuing its own tropical cyclone warnings if CPHC or NHC cannot issue warnings or if JTWC believes warnings from CPHC or NHC are not sufficiently accurate to protect DoD resources.

What does JTWC do in the CPHC and NHC areas of responsibility?

In the CPHC and NHC AOR, JTWC will repackage the National Weather Service (NWS) forecasts as warnings for DoD installation application and utilization.

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