Right now
The most recent data we hold from NOAA arrived 3 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 17 March 2026 at 00:45 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. Another comparable one was recorded here earlier the same day. 24 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Heavy Freezing Spray Warning issued March 16 at 3:39AM AKDT until March 17 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
- March 18, 2026 · score 39 · 0.0 km
- May 17, 2026 · score 39 · 0.0 km
- March 19, 2026 · score 39 · 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 | 0.78/1 |
| Coordinates | 34.8000, -106.2000 |
| Nearest City | Los Lunas (48 km) |
| Urban exposure index (PEI) | 56.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T13:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Heavy Freezing Spray Warning_noaa_urn:oid:2.49.0.1.840.0.4e85da6c6c5dfcd72750f8cf53c60978 |
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: 2026-03-16T13:00:00.000Z.
First archived: 2026-03-16T16:47:58.680Z. 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 | Sitkinak to Castle Cape out to 15 NM; Cape Tolstoi to Cape Sarichef out to 15 NM; Castle Cape to Cape Tolstoi out to 15 NM and 2 more areas |
| Headline | Heavy Freezing Spray Warning issued March 16 at 3:39AM AKDT until March 17 at 5:00PM AKDT by NWS Anchorage AK |
| Expires | 2026-03-16T16:45:00-08:00 |
| SenderName | NWS Anchorage AK |
| HasExactCoords | false |
| MergedCount | 16 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4e85da6c6c5dfcd72750f8cf53c60978a7885bbe.002.2","noaa_urn:oid:2.49.0.1.840.0.4e85da6c6c5dfcd72750f8cf53c60978a7885bbe.006.1","noaa_urn:oid:2.49.0.1.840.0.4e85da6c6c5dfcd72750f8cf53c60978a7885bbe.004.2","noaa_urn:oid:2.49.0.1.840.0.40bc18009a8c0c4baabf7864c08158b586f89df4.006.2","noaa_urn:oid:2.49.0.1.840.0.40bc18009a8c0c4baabf7864c08158b586f89df4.002.2","noaa_urn:oid:2.49.0.1.840.0.40bc18009a8c0c4baabf7864c08158b586f89df4.011.1","noaa_urn:oid:2.49.0.1.840.0.40bc18009a8c0c4baabf7864c08158b586f89df4.010.1","noaa_urn:oid:2.49.0.1.840.0.40bc18009a8c0c4baabf7864c08158b586f89df4.004.2","noaa_urn:oid:2.49.0.1.840.0.577598ff4eb9ac87b0e9a974818e92a2de1ae5ed.002.2","noaa_urn:oid:2.49.0.1.840.0.577598ff4eb9ac87b0e9a974818e92a2de1ae5ed.010.1","noaa_urn:oid:2.49.0.1.840.0.577598ff4eb9ac87b0e9a974818e92a2de1ae5ed.011.1","noaa_urn:oid:2.49.0.1.840.0.577598ff4eb9ac87b0e9a974818e92a2de1ae5ed.004.2","noaa_urn:oid:2.49.0.1.840.0.82ce6e45965ae778bcdcdf3f2d25828336778d67.010.1","noaa_urn:oid:2.49.0.1.840.0.82ce6e45965ae778bcdcdf3f2d25828336778d67.004.2","noaa_urn:oid:2.49.0.1.840.0.82ce6e45965ae778bcdcdf3f2d25828336778d67.011.1","noaa_urn:oid:2.49.0.1.840.0.82ce6e45965ae778bcdcdf3f2d25828336778d67.002.2"] |
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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