StormDrop
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Season Intelligence Report

Grand Targhee

WY · 10,200 ft summit · JAC

F

NWS Grade

2025–26 Season Snapshot

Storms This Season

166

storms tracked

Season Snowfall

149"

calibrated total

Best Storm

15/100

Significant

Current Snowpack

92"

Grand Targhee

Avg Daily Rate

0.5"/day

storms with data

Season SWE

35.6"

snow water equivalent

NWS Forecast Accuracy

F

NWS overpredicts by 100% at Grand Targhee

Our calibrated estimates are based on 3 verified storms. When NWS says 12 inches, reality is closer to 0 inches. Don't book flights based on NWS numbers alone.

Critical data quality concerns: (1) 100% forecast failure rate is extreme and atypical of NWS performance; (2) SNOTEL depth declining mid-period suggests possible melt, instrument drift, or data logging error; (3) Storm 1 shows isolated 8" depth gain with 0" SWE gain (impossible physics); (4) Missing temperature range data limits thermal analysis. Recommend independent verification of SNOTEL station 1082 calibration and data integrity before applying these rules operationally. With only 3 storms and widespread data gaps, confidence in correction factors is low.

Based on 3 verified storms · SNOTEL ground truth (Grand Targhee)

Storm History — 2025–26 Season

Level 3 · Major

Apr 15 – Apr 18

8
score

NWS Forecast

14.5"

Calibrated

1.5"

Actual (SNOTEL)

Pending

Density: Light

Rate: 0.7"/day

Full storm detail →
Level 3 · Major

Apr 15 – Apr 18

8
score

NWS Forecast

14.9"

Calibrated

1.5"

Actual (SNOTEL)

Pending

Density: Light

Rate: 0.6"/day

Full storm detail →
Level 3 · Major

Apr 15 – Apr 18

8
score

NWS Forecast

15.3"

Calibrated

1.5"

Actual (SNOTEL)

Pending

Density: Light

Rate: 0.6"/day

Full storm detail →
Show 163 more storms

Apr 15 – Apr 18

Level 3 · 2" calibrated

8/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 18

Level 2 · 1" calibrated

5/100

Apr 15 – Apr 15

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

7/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 14 – Apr 14

Level 1 · 0" calibrated

10/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

5/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 13 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 14

Level 1 · 0" calibrated

2/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

7/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

4/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

4/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

4/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

4/100

Apr 12 – Apr 12

Level 1 · 0" calibrated

4/100

Apr 7 – Apr 7

Level 1 · 0" calibrated

0/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

12/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

12/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

12/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

12/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

10/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

10/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

10/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

13/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

13/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

13/100

Apr 3 – Apr 3

Level 1 · 0" calibrated

13/100

Apr 3 – Apr 3

Level 2 · 1" calibrated

13/100

Apr 3 – Apr 3

Level 2 · 1" calibrated

15/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

15/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

13/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

13/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

13/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

10/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 3 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 3 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

5/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

8/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

8/100

Apr 2 – Apr 3

Level 2 · 1" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 2 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 3

Level 3 · 2" calibrated

8/100

Apr 1 – Apr 4

Level 3 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 3 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 3 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 4

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Apr 1 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 3

Level 2 · 2" calibrated

5/100

Mar 31 – Apr 2

Level 2 · 2" calibrated

5/100

Mar 30 – Mar 31

Level 1 · 0" calibrated

0/100

Mar 17 – Mar 17

Level 1 · 0" calibrated

4/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

4/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

4/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

4/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

7/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

7/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

10/100

Mar 16 – Mar 17

Level 1 · 0" calibrated

10/100

Mar 12 – Mar 13

Level 1 · 0" calibrated

0/100

Mar 11 – Mar 14

Level 1 · 1" calibrated

0/100

Mar 10 – Mar 11

Level 1 · 0" calibrated

5/100

Local Knowledge

TGR Community Intel

Storm Day Strategy

Storm days bring consolidation in main parking/resort areas; fresh powder accessible in Crags, upper ridges, and Sublette areas. Rain line typically 8,000-10,000 ft - stay above rain line for preservation. Early morning first-tracks on upper mountain; lower elevations often wet by afternoon. Mid-winter storms: rain line may drop to valley level, degrading lower tree skiing coverage. Post-storm monitoring essential before committing to below-8,000 ft terrain.

Terrain Opening Patterns

Dreamcatcher (DC)

Opens: Early season priority

Frequently open when other terrain is tracked or crusty

Football Fields / Instructor Chutes

Opens: Variable

Can develop icy bumps by afternoon; best in early morning

Powder Stashes

Steve Baugh Bowl

Behind Mary's lift, north-facing terrain

Side-country access; multiple laps possible; north aspects preserve powder longer

Backcountry terrain

General west slope terrain

Sensitive avalanche terrain; deep conditions noted; warming by early afternoon

Full local intelligence for Grand Targhee

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Based on 47 community reports · 2018-03-05 → 2026-03-01

Road & Access

No live DOT road data available for Grand Targhee.

Historical Patterns

Temperature effect: Insufficient temperature data (all reported as n/a) prevents analysis of warm/cold bias; however, elevated snow levels (536–1432 ft) suggest marginal or warming conditions that may explain misses.

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