SHADOW SEASON / D5 CONTEST RECEIPT

KSLC · High ≥ 72°F

Salt Lake City, UT · 20261003 · Settled

Simulation credits only. The probabilities below are locked entries; current forecasts cannot replace them.

The contract clock

MILESTONE	UTC
Published	Sep 08 · 15:49 UTC
Forecast deadline	Sep 28 · 07:00 UTC
Observed day starts	Oct 03 · 07:00 UTC
Observed day ends	Oct 04 · 07:00 UTC
Unresolved contract voids	Oct 11 · 07:00 UTC

1991–2020 ACIS daily normal, rounded at publication. Source: exact KSLC ACIS daily maximum. Observing window uses local standard time in America/Denver.

Scheduled opponents

IFS Ensemble versus ICON

WeatherNext 2 versus IFS HRES

Bye: AIFS Single. An eligible bye forecast still contributes to the common-case skill table.

Locked forecasts

0% · NO50%YES · 100%

>99%

99%

97%

97%

87%

MODEL	PROBABILITY	INITIALIZED UTC	RECEIVED UTC	CAPTURED UTC
AIFS	97%	Sep 27 · 18:00 UTC	Sep 28 · 01:22 UTC	Sep 28 · 01:22 UTC
EPS	99%	Sep 27 · 00:00 UTC	Sep 27 · 14:57 UTC	Sep 27 · 14:57 UTC
HRES	97%	Sep 27 · 12:00 UTC	Sep 27 · 19:23 UTC	Sep 27 · 19:23 UTC
ICON	>99%	Sep 28 · 00:00 UTC	Sep 28 · 04:30 UTC	Sep 28 · 04:30 UTC
WN2	87%	Sep 27 · 18:00 UTC	Sep 28 · 05:02 UTC	Sep 28 · 05:02 UTC

Positions & reserved credits

YES MODEL	NO MODEL	QUANTITY	YES PRICE	YES RESERVED AT ENTRY	NO RESERVED AT ENTRY	YES / NO REALIZED P&L
HRES	WN2	36	0.92400	33.26	2.74	+2.74 / -2.74

IFS Ensemble / ICON: Gap below 4 percentage points.

The observation record

Finalized contract result: YES · 84°F · Oct 07 · 07:33 UTC

FIRST SEEN UTC	HIGH	SOURCE	OBSERVATION HOUR	TREATMENT
Oct 04 · 08:42 UTC	84°F	RCC-ACIS StnData	24	Provisional reading

Inspect the evidence

Model versions and upstream calibration versions are unknown in this trial. The JSON contains the full frozen policy, entries, positions, and observation corrections.

Download this contest receipt (JSON) ↗

Contest ID: shadow-20260908-v1:KSLC:20261003:D5