| Date | HN24 | HN24W (SWE) | Density (%) | HST | Total | Air T | T Max | T Min | Sky | Precip | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12/14/19 05:15 | Trace | 18.7 MM | Trace | 55 CM | 1.5 C | 2.0 C | -8.5 C | Overcast | Rain | ||
| 12/13/19 05:00 | 0 CM | 0.0 MM | 0CM | 55 CM | -8.0 C | -8.0 C | -12.0 C | Broken | No precipitation | ||
| 12/12/19 05:00 | 1 CM | 0.2 MM | 1CM | 55 CM | -12.0 C | -7.0 C | -12.0 C | Overcast | No precipitation | ||
| 12/11/19 05:00 | Trace | 9.9 MM | Trace | 55 CM | -10.0 C | 4.0 C | -10.0 C | Overcast | No precipitation | ||
| 12/10/19 05:15 | 0 CM | 23.0 MM | 0CM | 59 CM | 2.5 C | 2.5 C | -2.0 C | Overcast | Rain | ||
| 12/09/19 05:30 | 1 CM | 2.0 MM | 20% | NC | 71 CM | 0.0 C | 1.0 C | -12.5 C | Overcast | Snow | |
| 12/08/19 05:45 | 2 CM | 0.8 MM | 5% | 7CM | 73 CM | -12.5 C | -10.0 C | -14.0 C | Clear | No precipitation | |
| 12/07/19 06:22 | 7 CM | 3.0 MM | 5% | NC | 74 CM | -14.0 C | -8.5 C | -14.0 C | Scattered | Snow | |
| 12/06/19 06:18 | 6 CM | 7.1 MM | 12% | 7CM | 67 CM | -11.0 C | -5.5 C | -11.0 C | Overcast | No precipitation | |
| 12/05/19 06:20 | Trace | 0.3 MM | NC | 64 CM | -5.5 C | -3.5 C | -7.5 C | Overcast | Snow | ||
| 12/04/19 06:15 | 5 CM | 5.9 MM | 12% | 7CM | 65 CM | -5.0 C | -4.0 C | -9.0 C | Overcast | No precipitation | |
| 12/03/19 06:18 | 2 CM | 3.7 MM | 11% | NC | 63 CM | -4.0 C | -4.0 C | -8.0 C | Overcast | Snow | |
| 12/02/19 06:18 | 6 CM | 7.5 MM | 12% | 6CM | 62 CM | -6.5 C | -6.5 C | -10.0 C | Overcast | No precipitation | |
| 12/01/19 06:18 | 0 CM | 0 MM | 0CM | 56 CM | -12.0 C | -8.0 C | -13.0 C | Clear | No precipitation |
| Date | HN24 | HN24W (SWE) | Density (%) | HST | Total | Air T | T Max | T Min | Sky | Precip | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12/14/19 08:03 | 0 CM | 0.0 MM | 0CM | 58 CM | 2.2 C | 2.7 C | -5.5 C | Overcast | Rain | View | |
| 12/13/19 07:58 | 0 CM | 0.0 MM | 0CM | 61 CM | -6.6 C | -6.6 C | -17.2 C | Few | No precipitation | ||
| 12/12/19 08:12 | Trace | 0.0 MM | 1CM | 61 CM | 16.1 C | 7.7 C | -17.2 C | Overcast | No precipitation | ||
| 12/11/19 08:00 | 1 CM | MM | 1CM | 61 CM | -12.8 C | 4.4 C | -7.8 C | View | |||
| 12/10/19 09:00 | CM | MM | 67 CM | 4.4 C | 5.0 C | -1.7 C | Overcast | No precipitation | View | ||
| 12/09/19 08:45 | 0 CM | MM | 0CM | 78 CM | 1.0 C | -1.7 C | -12.8 C | Overcast | No precipitation | View | |
| 12/08/19 08:00 | 5 CM | 1.5 MM | 3% | 17CM | 85 CM | -12.2 C | -12.2 C | -15.5 C | Clear | No precipitation | View |
| 12/07/19 08:00 | 12 CM | 5.0 MM | 4% | NC | 82 CM | -14.5 C | -9.5 C | -12.8 C | Broken | Snow | View |
| 12/06/19 08:10 | 3 CM | 2.6 MM | 8% | NC | 74 CM | -12.2 C | -5.5 C | -13.3 C | Overcast | Snow | View |
| 12/05/19 08:00 | 2 CM | MM | NC | 74 CM | -6.1 C | -6.7 C | Obscured | Snow | View | ||
| 12/04/19 08:00 | 8 CM | 8.0 MM | 10.0% | 21CM | 73 CM | -8.3 C | -7.2 C | -11.0 C | Overcast | No precipitation | |
| 12/03/19 08:12 | 6 CM | 6.0 MM | 18% | NC | 66 CM | -8.3 C | -5.5 C | -8.9 C | Overcast | Snow | View |
| 12/02/19 08:16 | 8 CM | 12.0 MM | 14% | NC | 66 CM | -8.3 C | -5.5 C | -8.3 C | Overcast | No precipitation | View |
| 12/01/19 08:08 | 0 CM | 0.0 MM | 0CM | 68 CM | -10.5 C | -10.0 C | -16.6 C | Few | No precipitation | View |
| Date | HN24 | HN24W (SWE) | Density (%) | HST | Total | Air T | T Max | T Min | Sky | Precip | Comments |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 12/14/19 06:25 | Trace | 23.8 MM | NC | 41 CM | 2.0 C | 2.0 C | -8.0 C | Overcast | Rain | ||
| 12/13/19 06:25 | 0 CM | 0.0 MM | 0CM | 41 CM | -6.0 C | -5.0 C | -14.0 C | Clear | No precipitation | ||
| 12/12/19 06:30 | 1 CM | 0.4 MM | 1CM | 42 CM | -14.0 C | -8.0 C | -14.5 C | Overcast | No precipitation | ||
| 12/11/19 06:25 | 1 CM | 11.6 MM | 1CM | 41 CM | -10.0 C | 4.5 C | -10.0 C | Overcast | No precipitation | ||
| 12/10/19 06:56 | 0 CM | 21.8 MM | 0CM | 46 CM | 2.5 C | 4.5 C | -0.5 C | Overcast | No precipitation | ||
| 12/09/19 06:20 | 2 CM | 2.8 MM | 2CM | 56 CM | 0.0 C | 1.0 C | -12.0 C | Overcast | No precipitation | ||
| 12/08/19 06:25 | 2 CM | 0.6 MM | 2CM | 58 CM | -12.0 C | -8.5 C | -13.5 C | Clear | No precipitation | ||
| 12/07/19 06:25 | 7 CM | 2.6 MM | 7CM | 60 CM | -13.0 C | -5.5 C | -13.0 C | Few | No precipitation | ||
| 12/06/19 06:20 | 7 CM | 4.8 MM | 7CM | 55 CM | -9.0 C | -4.5 C | -11.5 C | Few | No precipitation | ||
| 12/05/19 06:25 | Trace | Trace | Trace | 50 CM | -5.0 C | -2.0 C | -7.0 C | Overcast | No precipitation | ||
| 12/04/19 06:20 | 5 CM | 4.0 MM | 7CM | 50 CM | -6.0 C | -2.0 C | -8.0 C | Overcast | No precipitation | ||
| 12/03/19 06:20 | 2 CM | 1.6 MM | NC | 48 CM | -4.0 C | -3.0 C | -7.0 C | Overcast | Snow | ||
| 04/07/19 05:35 | 0 CM | Trace | Trace | 196 CM | 1.0 C | 2.5 C | -1.5 C | Scattered | No precipitation | ||
| 04/06/19 05:21 | 3 CM | 4.0 MM | 16% | NC | 199 CM | 0.5 C | 6.0 C | -11.0 C | Overcast | Mixed rain and snow | View |
Thanks to the AMC Hermit Lake , Randolph Mountain Club Gray Knob and Harvard Cabin caretakers for taking measurements so early every morning. This information is a valuable tool in helping MWAC produce more accurate avalanche forecast. Please thank the caretakers when you see them!
The Mount Washington Avalanche Center is a partnership between the White Mountain National Forest, White Mountain Avalanche Education Foundation and Friends of Tuckerman Ravine and other community organizations. The avalanche forecast applies only to backcountry areas, not operating ski areas, and describes general avalanche conditions which vary locally. The avalanche information provided is the sole responsibility of the USDA Forest Service.
