The cognitive traps, three checklists borrowed from trades that solved this before us, and the debrief that turns one outing into better judgment for the next.

In this lesson you will

  • Name the cognitive traps that lead spotters into danger.
  • Apply a structured go and no-go decision framework.
  • Conduct a structured post-event debrief.

Knowing the rules is not the problem

Everybody in lesson 1 knew the rules. Every person who has driven into water knew about Turn Around Don't Drown. The failure is almost never ignorance, it is a decision made under pressure by somebody who wanted a particular answer, so the last lesson is about the decision rather than the weather.

Normalcy bias
It has been fine every other time, so it will be fine. The ninety-nine safe outings are not evidence about the hundredth, but they feel like it.
Target fixation
All attention on the storm, none on the road, the time, the fuel or the way out. The thing you are watching is not the thing that will hurt you.
Get-there-itis
Borrowed from aviation, where it kills people regularly. The plan said be there, so you press on past the point where the plan stopped making sense.
Overconfidence
Experience generalised past where it applies. It is real competence, in ordinary conditions, being spent on an extraordinary one.
Convoy groupthink
Nobody else has turned around, so it must be fine. Everybody in the convoy is thinking exactly that, about everybody else.
The NWS name for the state you will be in
The mobile spotter guidance calls it the S.E.T. effect: Stress, Excitement, Tension. It warns that even the most seasoned spotter will eventually meet something they have never seen, and that the thing to do is keep your emotions in check. Decisions made in that state are worse than the ones you made at the kitchen table, which is the argument for deciding at the kitchen table.

Three checklists, borrowed honestly

Aviation and wildland firefighting have spent decades on exactly this problem: competent people, voluntary exposure, time pressure, and a strong pull toward the hazard. Their tools transfer well. There is no published spotter-specific adaptation of any of them, so what follows is the originals, presented as what they are.

ChecklistStands forWhat it is for
IMSAFEIllness, Medication, Stress, Alcohol, Fatigue, EmotionWhether you are fit to go, before you think about the weather at all. Lesson 2 gave the fatigue numbers.
PAVEPilot, Aircraft, enVironment, External pressuresTriage of the whole trip: you, the vehicle, the conditions, and the pressure to go regardless.
LCESLookouts, Communications, Escape routes, Safety zonesWildland fire doctrine, and it maps onto spotting almost unchanged. If any one of the four is missing, you do not have a position.

LCES is the one to memorise. A spotting position with no second pair of eyes, no working communications, no second way out, or nowhere to shelter is not a position, whatever the view is like.

The letter that does the damage
In aviation the E in PAVE, external pressure, is repeatedly identified as the most dangerous element, because it makes people ignore all the others. In spotting it is "I said I would be out", "the net is expecting me", "this is the best setup in two years", and "I have already driven an hour". None of those is a fact about the storm. They are all reasons to discount facts about the storm.

Deciding before you are in it

  1. Decide at home what would end the outing, and say it out loud or write it down. Darkness, a specific storm mode, losing your second escape route, losing radar, being below half a tank, being too tired.
  2. Run IMSAFE on yourself before you run anything on the weather.
  3. Run PAVE on the trip, and be honest about the E.
  4. Check LCES at every position, not once at the start. Positions change, and three of the four can be lost without you noticing.
  5. Set a hard turnaround time, and treat it as a limit rather than a target.
When in doubt, do not go out
The house rule, and this is the lesson that explains it. Doubt is information. It is usually your judgment having noticed something before you can put it into words, and the cognitive traps above are mostly machinery for talking yourself out of it. The storm will be there next year. There is always another storm.

The debrief

Three questions, afterwards, honestly, ideally written down. This is how one outing becomes better judgment rather than just another safe outing reinforcing normalcy bias.

  • What did I actually see, as distinct from what I reported and what I told people afterwards?
  • What did I decide, and when? Especially the decisions that did not feel like decisions.
  • What would I change? And specifically: was there a moment I talked myself past something?

Include the outings where nothing happened. Those are the ones that teach you what your own margin actually looks like, and they are the ones normalcy bias feeds on if you never examine them.

Check yourself

You have driven ninety minutes to a target area. The storm mode has changed to a fast line after dark, you have lost mobile signal, and you are tired. Your notes from this morning said you would stop at dark. What do you do?

  1. Stop. Your own pre-set limit has been reached and three separate conditions have deteriorated
  2. Continue. You have invested ninety minutes and the setup may not repeat this season
  3. Continue, but only until the line arrives, then shelter
  4. Ask the net what everybody else is doing and follow the consensus
Hint

Two of the wrong answers are named cognitive traps in this lesson, almost word for word.

Answer

Stop. Your own pre-set limit has been reached and three separate conditions have deteriorated

Your limit was set at the kitchen table by a version of you who was rested and not invested, and that version had better judgment than the one reading this in the car. The second option is sunk cost and get-there-itis, the fourth is convoy groupthink, and the third is the compromise that keeps you there. Losing communications alone breaks LCES.

Sources

  1. FAA, Pilot's Handbook of Aeronautical Knowledge: the PAVE and IMSAFE checklists
  2. NWCG, Six Minutes for Safety: LCES
  3. NWS Paducah, "Safety for Mobile Spotters", produced from an essay by C. A. Doswell III
  4. FAA, Aviation Instructor's Handbook, chapters 1 and 10