Launch or test range · Marshall Islands (U.S. Army range)

Reagan Test Site, Kwajalein Atoll

Recorded as: RTS SAFETY KWAJALEIN MH

The U.S. Army's missile test range at Kwajalein Atoll. Its tests close large areas of the central Pacific for the duration of each window.

Launch and test ranges announce the sea areas that may be dangerous during a rocket launch, a missile test or the recovery of spent stages: where parts may fall, and in which time windows. Their warnings are among the most precisely defined in the archive — polygons with start and end times that cancel themselves when the last window closes.

What the archive holds

327 messages in this archive record RTS SAFETY KWAJALEIN MH as their authority, issued from 2001-02-16 to 2024-03-17. None of them is in force in the latest lists we collected.

Exercises accounts for 181 of 327 recorded messages (55%), the largest warning type group in this selection.

All of those that can be attributed to a NAVAREA belong to NAVAREA XII.

Located messages lie in 3 sea areas, most often North Pacific Ocean, South China Sea and Gulf of Alaska.

The largest yearly count is 2002, with 32 messages. Collection is incomplete between 2024-05 and 2026-08-17, so those years are not comparable.

Across all years its messages are issued most often in April and least often in January.

They reached this archive through HYDROPAC (281) and NAVAREA XII (46).

Messages by year of issue

'01
'02
'03
'04
'05
'06
'07
'08
'09
'10
'11
'12
'13
'14
'15
'16
'17
'18
'19
'20
'21
'22
'23
'24

By month of issue, all years

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Warning types

Where

NAVAREA XII 46

Most recently issued

  1. HYDROPAC 891/24 · Other2024-03-17
    Cancel HYDROPAC 835/24 and this msg, operations completed
  2. NAVAREA XII 160/24 · Other2024-03-17
    Cancel NAVAREA XII 145/24 and this msg, operations completed
  3. HYDROPAC 835/24 · Exercises2024-03-13
    Hazardous operations 170100Z to 170730Z mar, alternate 180009Z to 180430Z, 190200Z to 190730Z and 200009Z to…
  4. NAVAREA XII 145/24 · Exercises2024-03-13
    Hazardous operations 170100Z to 170730Z mar, alternate 180009Z to 180430Z, 190200Z to 190730Z and 200009Z to…
  5. HYDROPAC 816/24 · Exercises2024-03-12
    Hazardous operations 170100Z to 170500Z mar, alternate 180009Z to 180209Z, 190200Z to 190500Z and 200009Z to…
  6. NAVAREA XII 140/24 · Exercises2024-03-12
    Hazardous operations 170100Z to 170500Z mar, alternate 180009Z to 180209Z, 190200Z to 190500Z and 200009Z to…
  7. HYDROPAC 767/24 · Exercises2024-03-07
    Hazardous operations 170100Z to 170500Z mar, alternate 180100Z to 180209Z, 190200Z to 190500Z and 200100Z to…
  8. NAVAREA XII 128/24 · Exercises2024-03-07
    Hazardous operations 170100Z to 170500Z mar, alternate 180100Z to 180209Z, 190200Z to 190500Z and 200100Z to…

Earliest in the archive

  1. HYDROPAC 256/01 · Exercises · North Pacific Ocean2001-02-16
    Hazardous operations 1727Z to 2256Z daily 21 thru 23 feb in area bound by 19-21N 166-55E, 16-36N 168-18E,…

Other launch or test ranges in NAVAREA XII

Counts are messages recording this issuer as their authority, recounted 2026-09-24; see coverage for what is collected. Not for navigation.

Reagan Test Site, Kwajalein Atoll — navigational warnings it issued · seahazards