⛳ Cold Ashby – Course Closure Forecast

Predictive model based on soil moisture dynamics, rainfall accumulation & seasonal drainage

Generated: 2026-02-24T10:13:55 | Model trained on 116 labelled days

Forecast Days
16
Predicted Open
1
Predicted Partial
15
Predicted Closed
0
Avg Closure Risk
39%
Best Day
2026-03-08
Train Accuracy
100%
Train κ
1.00
📅 Daily Forecast
Tuesday 2026-02-24
⚠️ PARTIAL
Closure: 50% Moderate PARTIAL
🌡️ 8–12°C 🌧️ 0.0mm 💨 16km/h ☁️ 77%
💧 Balance: 41mm 📊 Sat: 91% 🔄 Net 7d: +9.7mm
Playability: 55/100 Playable
Wednesday 2026-02-25
👍 PARTIAL
Closure: 40% Low PARTIAL
🌡️ 8–15°C 🌧️ 0.0mm 💨 17km/h ☁️ 69%
💧 Balance: 39mm 📊 Sat: 86% 🔄 Net 7d: +4.6mm
Playability: 61/100 Good
Thursday 2026-02-26
👍 PARTIAL
Closure: 39% Low PARTIAL
🌡️ 9–11°C 🌧️ 3.6mm 💨 22km/h ☁️ 89%
💧 Balance: 41mm 📊 Sat: 91% 🔄 Net 7d: +2.7mm
Playability: 51/100 Playable
Friday 2026-02-27
👍 PARTIAL
Closure: 40% Low PARTIAL
🌡️ 5–11°C 🌧️ 3.4mm 💨 22km/h ☁️ 78%
💧 Balance: 42mm 📊 Sat: 94% 🔄 Net 7d: +4.6mm
Playability: 51/100 Playable
Saturday 2026-02-28
👍 PARTIAL
Closure: 40% Low PARTIAL
🌡️ 5–9°C 🌧️ 2.1mm 💨 16km/h ☁️ 78%
💧 Balance: 42mm 📊 Sat: 94% 🔄 Net 7d: +5.1mm
Playability: 46/100 Playable
Sunday 2026-03-01
👍 PARTIAL
Closure: 40% Low PARTIAL
🌡️ 6–11°C 🌧️ 0.3mm 💨 27km/h ☁️ 93%
💧 Balance: 41mm 📊 Sat: 90% 🔄 Net 7d: +4.4mm
Playability: 51/100 Playable
Monday 2026-03-02
👍 PARTIAL
Closure: 38% Low PARTIAL
🌡️ 8–14°C 🌧️ 0.0mm 💨 18km/h ☁️ 78%
💧 Balance: 38mm 📊 Sat: 85% 🔄 Net 7d: +2.5mm
Playability: 61/100 Good
Tuesday 2026-03-03
👍 PARTIAL
Closure: 38% Low PARTIAL
🌡️ 2–10°C 🌧️ 0.3mm 💨 18km/h ☁️ 62%
💧 Balance: 36mm 📊 Sat: 81% 🔄 Net 7d: +2.5mm
Playability: 66/100 Good
Wednesday 2026-03-04
👍 PARTIAL
Closure: 38% Low PARTIAL
🌡️ 1–10°C 🌧️ 0.0mm 💨 14km/h ☁️ 50%
💧 Balance: 34mm 📊 Sat: 76% 🔄 Net 7d: +2.4mm
Playability: 56/100 Playable
Thursday 2026-03-05
👍 PARTIAL
Closure: 38% Low PARTIAL
🌡️ 2–8°C 🌧️ 0.9mm 💨 10km/h ☁️ 95%
💧 Balance: 33mm 📊 Sat: 74% 🔄 Net 7d: -0.3mm
Playability: 56/100 Playable
Friday 2026-03-06
⚠️ PARTIAL
Closure: 43% Moderate PARTIAL
🌡️ 0–6°C 🌧️ 3.6mm 💨 29km/h ☁️ 76%
💧 Balance: 36mm 📊 Sat: 79% 🔄 Net 7d: +0.6mm
Playability: 34/100 Grim
Saturday 2026-03-07
⚠️ PARTIAL
Closure: 42% Moderate PARTIAL
🌡️ -0–5°C 🌧️ 0.0mm 💨 34km/h ☁️ 36%
💧 Balance: 34mm 📊 Sat: 75% 🔄 Net 7d: -1.8mm
Playability: 44/100 Playable
Sunday 2026-03-08
👍 OPEN
Closure: 29% Low OPEN
🌡️ 0–6°C 🌧️ 0.0mm 💨 32km/h ☁️ 36%
💧 Balance: 32mm 📊 Sat: 71% 🔄 Net 7d: -2.3mm
Playability: 51/100 Playable
Monday 2026-03-09
👍 PARTIAL
Closure: 35% Low PARTIAL
🌡️ -1–4°C 🌧️ 0.3mm 💨 26km/h ☁️ 57%
💧 Balance: 31mm 📊 Sat: 68% 🔄 Net 7d: -1.8mm
Playability: 38/100 Grim
Tuesday 2026-03-10
👍 PARTIAL
Closure: 35% Low PARTIAL
🌡️ -1–5°C 🌧️ 0.0mm 💨 20km/h ☁️ 59%
💧 Balance: 29mm 📊 Sat: 65% 🔄 Net 7d: -1.9mm
Playability: 48/100 Playable
Wednesday 2026-03-11
👍 PARTIAL
Closure: 35% Low PARTIAL
🌡️ 0–6°C 🌧️ 0.3mm 💨 26km/h ☁️ 76%
💧 Balance: 27mm 📊 Sat: 61% 🔄 Net 7d: -1.5mm
Playability: 53/100 Playable
🔬 What Drives Course Closure

Feature importance from the trained model — these are the weather/soil factors most predictive of Cold Ashby closing.

Closure Score Lag1
0.4268
Precip Max 3D
0.0890
Soil Moisture 28 To 100Cm Mean 7D Avg
0.0833
Soil Moisture 28 To 100Cm Mean
0.0805
Soil Moisture 7 To 28Cm Mean 7D Avg
0.0333
Day Of Year
0.0311
Rain X Clay Sat
0.0175
Month
0.0162
Soil Moisture 0 To 7Cm Mean 7D Avg
0.0127
Precip Max 5D
0.0120

Model: Histogram Gradient Boosted Regressor (ordinal: open → partial → closed)

Training data: 116 days (26 closed, 7 partial, 83 open)

Training fit: Accuracy 100% | κ 1.000 | R² 0.985

Cross-validation: 5-fold TimeSeriesSplit — R² -4.802 ± 3.435 (limited by seasonal data — improves with more winters)

Thresholds: OPEN < 0.35 | PARTIAL | 0.55 < CLOSED (auto-optimised)

Features: 25 selected from 71 candidates

Soil model: Clay bucket model (field capacity 45.0mm, drainage rate 0.03/day)

Note: Predictions improve significantly with more labelled closure data. Target: 60+ days for robust estimates.