Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 21 March 2026 at 12:15 UTC. It is kept here as a record.
It is the 5th strongest of the 144 detections recorded within 20 km of this point since 8 March 2026. The last comparable one was on 20 March 2026. 39 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Heavy Freezing Spray Warning issued March 20 at 3:29PM AKDT until March 21 at 5:00PM AKDT by NWS Anchorage AK
Urban PEI: 56,312 within a heuristic 50 km radius; not unique people.
Nearby, since 8 March 2026
- September 6, 2026 · score 32 · 0.0 km
- September 5, 2026 · score 32 · 0.0 km
- September 1, 2026 · score 32 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 39 / 100 |
| Legacy data-support index | 0.82/1 |
| Coordinates | 34.8000, -106.2000 |
| Nearest City | Los Lunas (48 km) |
| Urban exposure index (PEI) | 56.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-21T13:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Heavy Freezing Spray Warning_noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-03-21T13:00:00.000Z.
First archived: 2026-03-22T01:10:19.489Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Heavy Freezing Spray Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Cape Sarichef to Nikoski Bering Side from 15 to 85 NM; Cape Sarichef to Nikoski Pacific Side out to 15 NM; Cape Sarichef to Nikoski Bering Side out to 15 NM and 8 more areas |
| Headline | Heavy Freezing Spray Warning issued March 20 at 3:29PM AKDT until March 21 at 5:00PM AKDT by NWS Anchorage AK |
| Expires | 2026-03-21T04:15:00-08:00 |
| SenderName | NWS Anchorage AK |
| HasExactCoords | false |
| MergedCount | 27 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.013.1","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.015.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.012.1","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.003.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.005.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.006.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.010.1","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.004.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.007.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.002.2","noaa_urn:oid:2.49.0.1.840.0.8088245b05c00f13bd0139de2e036040aa1eef0b.011.1","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.006.2","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.007.2","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.002.2","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.011.1","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.010.1","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.013.1","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.004.1","noaa_urn:oid:2.49.0.1.840.0.8d3f8bc4bcad5875e373793bbd172c142451c3f0.005.2","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.007.2","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.002.2","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.013.1","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.006.2","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.004.1","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.005.2","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.010.1","noaa_urn:oid:2.49.0.1.840.0.c4cf89b878a4f52ba6396ba3dc356c9ef4573628.011.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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