Calamity
MediumSevere WeatherCalamity Score: 37

Severe Weather in United States

PolkUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 5 minutes ago, and this point is in it.

5 other detections within 20 km in the last 24 hours, the nearest 13 km from here.

This alert is in force until 12 September 2026, 04:45 UTC.

It is the 43rd strongest of the 62 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued September 11 at 6:42PM EDT until September 12 at 12:45AM EDT by NWS Peachtree City GA

An estimated 283,130 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 3 independent sources, including NOAA.

Our own score for this event is 37 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)37 / 100
Our confidence91%
Coordinates33.9685, -85.0427
Nearest CityCartersville (32 km)
Population Exposed283.1K within 50 km
Impact Tiersignificant
Timestamp2026-09-11T22:42:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.3e2705bfd7ff350e5f5af9bdf36c65d1ab668bd3.001.1

Score Breakdown

35
intensity
70
population
0
cascading
18
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescGilmer, GA; Gordon, GA; Pickens, GA; DeKalb, GA; Newton, GA; Rockdale, GA; Walton, GA; Cobb, GA; Fulton, GA and 4 more areas
HeadlineFlash Flood Warning issued September 11 at 6:42PM EDT until September 12 at 12:45AM EDT by NWS Peachtree City GA
Expires2026-09-12T00:45:00-04:00
SenderNameNWS Peachtree City GA
HasExactCoordstrue
MergedCount7
MergedIds["noaa_urn:oid:2.49.0.1.840.0.3e2705bfd7ff350e5f5af9bdf36c65d1ab668bd3.001.1","noaa_urn:oid:2.49.0.1.840.0.5784f49b57c29df59e30bd92bac67e4799f0922b.001.1","noaa_urn:oid:2.49.0.1.840.0.7016f4707c4ac81d322a729a52bb8c62d3302582.001.1","noaa_urn:oid:2.49.0.1.840.0.e7c107ed549278de03b9f338d08125482f7532ef.001.1","noaa_urn:oid:2.49.0.1.840.0.7367b4b45b0e9bcc63b9599301504dc7bf97f4ee.001.1","noaa_urn:oid:2.49.0.1.840.0.0414e4b7c8e03e2e356f070b57b07c526f5847f9.001.1","noaa_urn:oid:2.49.0.1.840.0.09f36699283da2f7f1dc7a6d875345dce7408778.001.1"]
Iem TypeSummaryF
Iem City3 NW Villa Rica
Iem CountyCarroll
Iem StateGA
Iem WfoFFC
Iem RemarkFlooding reported on the north end of Pine Needle Trail in Villa Rica, GA.
Google News RssFeedweather
Google News SourceNameCBS News
MergedSources[{"id":"iem_F_33.740_-84.910_1789163100000","source":"iem","severity":"low","severityValue":25,"timestamp":1789163100000,"latitude":33.74,"longitude":-84.91},{"id":"iem_F_33.620_-84.460_1789159200000","source":"iem","severity":"low","severityValue":25,"timestamp":1789159200000,"latitude":33.62,"longitude":-84.46},{"id":"iem_F_33.980_-84.340_1789162020000","source":"iem","severity":"low","severityValue":25,"timestamp":1789162020000,"latitude":33.98,"longitude":-84.34},{"id":"iem_F_33.620_-84.360_1789159620000","source":"iem","severity":"low","severityValue":25,"timestamp":1789159620000,"latitude":33.62,"longitude":-84.36},{"id":"iem_F_34.010_-84.340_1789161660000","source":"iem","severity":"low","severityValue":25,"timestamp":1789161660000,"latitude":34.01,"longitude":-84.34},{"id":"iem_F_33.760_-84.960_1789161780000","source":"iem","severity":"low","severityValue":25,"timestamp":1789161780000,"latitude":33.76,"longitude":-84.96},{"id":"gnews_weather_496984_239","source":"google_news","severity":"medium","severityValue":40,"timestamp":1789144993000,"latitude":33.75,"longitude":-84.39}]

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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