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Hypothermia

Hypothermia occurs when your core body temperature falls below normal. Hypothermia due to environmental exposure can occur during any season and in most climates. It can easily happen in cold winds or wetness. Hypothermia can also occur in moderately cool temperatures, particularly if coupled with dehydration. People tend to forget to drink on cool, wet days, and can get hypothermic even when the temperature stays well above freezing.

Symptoms of hypothermia include:

  • Slurred speech. 
  • Weakness and loss of coordination. 
  • Confusion. 
  • Irrational behavior.
  • Uncontrollable shivering (although, at extremely low body temperatures, shivering may stop). 
  • Pale and cold skin. 
  • Drowsiness – especially in more severe stages. 
  • Slowed breathing or heart rate.

Your body automatically begins to shiver to warm itself. As your energy is used up to keep warm, you may reach a point where your body will be unable to warm itself. If left untreated, your body will gradually shut down; and you can die.

You can avoid hypothermia with the following precautions:

  • Stay hydrated.
  • Avoid fatigue.
  • Avoid cold winds.
  • Change out of wet clothes.
  • Be aware of the symptoms and act immediately upon their onset.

If you recognize hypothermia, take the following steps:

  • Move the patient to shelter.
  • Remove wet clothes and replace them with warm, dry garments.
  • If the victim is alert, give them food and warm liquids to drink.
  • Insulation protects from heat loss. Insulating materials include extra clothing, blankets, quilts, sleeping bags, and insulated pads.
  • A sleeping bag should not be used like a blanket; rather the patient should be placed inside, and the enclosure should be completely zipped up. Multiple sleeping bags, if available, can be placed within each other to create a multilayered enclosure.
Image
Info graphic of a chart that explains how to assess a potentially hypothermic patient.

 

Category
Firefighter Health & First Aid
References
Survival in the Ice - Part 1
NWCG Incident Response Pocket Guide, PMS 461
Interagency Standards for Fire & Fire Aviation Operations (Red Book)

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Incident Position Standards and Next Generation Position Task Book Available for Helicopter Crewmember

Date: April 28, 2025
Questions?  Please contact:
Interagency Helicopter Operations Subcommittee

NWCG is excited to announce that the NWCG Incident Position Standards for Helicopter Crewmember, PMS 350-22, and the NWCG Position Task Book for Helicopter Crewmember (HECM), PMS 311-22, are now available.

These resources, part of the Performance Support Package developed through the Incident Performance and Training Modernization (IPTM) effort, support trainees, qualified personnel, and evaluators.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1.

References:

NWCG Incident Position Standards for Helicopter Crewmember, PMS 350-22

NWCG Incident Position Standards for Helicopter Crewmember, PMS 350-22

NWCG Position Task Book for Helicopter Crewmember (HECM), PMS 311-22

Updated NWCG Standards for Fire Unmanned Aircraft Systems Operations, PMS 515

Date: April 23, 2025
Questions?  Please contact:
Interagency Fire Unmanned Aircraft Systems Subcommittee

The NWCG Standards for Fire Unmanned Aircraft Systems Operations, PMS 515 standardizes processes and procedures for the interagency use of Unmanned Aircraft Systems (UAS), including pilot inspections and approvals. This updated publication provides the aviation community with standards to ensure UAS are used safely, effectively, and efficiently in support of fire management goals and objectives.

References:

NWCG Standards for Fire Unmanned Aircraft Systems Operations, PMS 515

NWCG National Interagency Aviation Committee

ETC Bulletin 25-001: Retrofitted Hot/Cold Beverage Kits - 2025 Field Season

Date: April 16, 2025
Questions?  Please contact:
Equipment Technology Committee

Due to spout failures and the associated risk of burn injuries, manufacturers have retrofitted the Hot/Cold Beverage Kits using a heat-shrinking band to secure the black spout at the insertion site. The updated kits feature a fluorescent label on each full kit assembly for easy identification. Catering units are encouraged to confirm the clear heat-shrinking bands are intact around each spout before filling.

ETC Bulletin 24-001 regarding Hot/Cold Beverage Kits has been archived and replaced by ETC Bulletin 25-001 for the 2025 season.

References:

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ETC-EB-25-001 Retrofitted Hot/Cold Beverage Kits

NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212, and Next Generation Position Task Book for Basic Faller Are Now Available

Date: April 14, 2025
Questions?  Please contact:
Hazard Tree and Tree Felling Subcommittee

The updated NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212, and NWCG Position Task Book for Basic Faller (FAL3), PMS 311-19 are now available.

The NWCG Standards for Wildland Fire Chainsaw Operations, PMS 212 includes position standards designed to be used in conjunction with the Next Generation Position Task Book (Next Gen PTB). The Next Gen PTB for Basic Faller (FAL3) includes an evaluation guide with suggested rating elements to consider when assessing trainees.

References:

NWCG Standards For Wildland Fire Chainsaw Operations, PMS 212

NWCG Position Task Book for Basic Faller (FAL3), PMS 311-119

NWCG Basic Faller (FAL3)