Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

CarrollUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 13 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 16 May 2026 at 00:00 UTC. It is kept here as a record.

No stronger detection stands among the 33 recorded within 20 km of this point since 22 March 2026 — 5 others scored the same. The last comparable one was on 14 May 2026. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 15 at 8:00AM EDT until May 15 at 11:00PM EDT by NWS Gray ME

An estimated 16,227 people live within 50 km of this point.

Nearby, since 22 March 2026

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 34 out of 100, at 91 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)34 / 100
Our confidence91%
Coordinates43.8680, -71.3321
Nearest CityLaconia (39 km)
Population Exposed16.2K within 50 km
Impact Tiersignificant
Timestamp2026-05-15T16:30:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.ba2ccad141b0aa90f3711e3069fb16c7

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyImmediate
CertaintyObserved
AreaDescCumberland, ME; Oxford, ME; Carroll, NH; Belknap, NH; Grafton, NH
HeadlineFlood Warning issued May 15 at 8:00AM EDT until May 15 at 11:00PM EDT by NWS Gray ME
Expires2026-05-15T20:00:00-04:00
SenderNameNWS Gray ME
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.ba2ccad141b0aa90f3711e3069fb16c7903c1c34.001.1","noaa_urn:oid:2.49.0.1.840.0.3a6511e086a74b15afadea0ce272288aa09e2018.001.1"]
Iem TypeSummaryR
Iem Magnitude2
Iem UnitInch
Iem City1 NE Lovell
Iem CountyOxford
Iem StateME
Iem WfoGYX
Iem RemarkStorm total.
MergedSources[{"id":"iem_R_43.540_-70.850_1778869860000","source":"iem","severity":"low","severityValue":25,"timestamp":1778869860000,"latitude":43.54,"longitude":-70.85},{"id":"iem_R_43.840_-71.020_1778868360000","source":"iem","severity":"low","severityValue":25,"timestamp":1778868360000,"latitude":43.84,"longitude":-71.02},{"id":"iem_R_43.660_-71.720_1778867100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778867100000,"latitude":43.66,"longitude":-71.72},{"id":"iem_R_44.140_-70.880_1778864100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778864100000,"latitude":44.14,"longitude":-70.88}]

Safety Information

During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.

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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Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.