Severe weather on August 19, 2026, featured marginal to slight risk areas per the NOAA Storm Prediction Center Day 1 Convective Outlook, with tornado probabilities capped at 2–5% across parts of the central and southern Plains and Midwest. Modest instability, weak deep-layer shear, and a tendency for linear storm modes limited discrete supercell development and rotation potential, consistent with August climatology showing reduced tornado frequency versus spring peaks. Confirmed reports included three brief tornado touchdowns in eastern Iowa and north-central Illinois, plus isolated activity near Indiana, aligning with low-end conditional threats from moisture and lift. Official NWS summaries and SPC analyses provide the resolution data, with traders monitoring these verified observations over model runs or preliminary alerts for final city-level determinations.
Tóm tắt AI thử nghiệm tham chiếu dữ liệu Polymarket. Đây không phải tư vấn giao dịch và không ảnh hưởng đến cách thị trường này được giải quyết. · Cập nhậtWhich cities face tornado risk on August 19?
$2,283 KL.

Nashville, TN
38%
$2,283 KL.

Nashville, TN
38%
The SPC Day 1 Convective Outlook assigns tornado probability percentages (2%, 5%, 10%, etc.) to geographic areas across the US. If the city's coordinates fall inside any area rated 2% or higher, that city resolves "Yes". If a city is outside all tornado probability areas, or only within areas rated below 2%, that city resolves "No".
The SPC outlook is published as machine-readable geographic data (GeoJSON) at spc.noaa.gov. Each city's coordinates and the polygon boundaries are publicly verifiable. Borderline cases can be independently confirmed using the polygon data (excluding the hatched SIGN overlay, which is not a probability rating) and the city's listed coordinates.
Resolution is based on the scheduled 01:00 UTC Day 1 Convective Outlook update issued on the following UTC calendar day. The SPC Day 1 outlook covers a 24-hour period from 12:00 UTC to 12:00 UTC the following day. Subsequent revisions published after that scheduled update will not be considered. If the SPC outlook is not published or is unavailable, the market remains open until data is available.
The resolution source for this market is the NOAA Storm Prediction Center at spc.noaa.gov.
This market uses coordinates 36.1627, -86.7816 for Nashville, TN.
Thị trường mở: Aug 19, 2026, 2:03 PM ET
Nguồn giải quyết
https://www.spc.noaa.gov/products/outlook/day1otlk.htmlResolver
0x65070BE91...The SPC Day 1 Convective Outlook assigns tornado probability percentages (2%, 5%, 10%, etc.) to geographic areas across the US. If the city's coordinates fall inside any area rated 2% or higher, that city resolves "Yes". If a city is outside all tornado probability areas, or only within areas rated below 2%, that city resolves "No".
The SPC outlook is published as machine-readable geographic data (GeoJSON) at spc.noaa.gov. Each city's coordinates and the polygon boundaries are publicly verifiable. Borderline cases can be independently confirmed using the polygon data (excluding the hatched SIGN overlay, which is not a probability rating) and the city's listed coordinates.
Resolution is based on the scheduled 01:00 UTC Day 1 Convective Outlook update issued on the following UTC calendar day. The SPC Day 1 outlook covers a 24-hour period from 12:00 UTC to 12:00 UTC the following day. Subsequent revisions published after that scheduled update will not be considered. If the SPC outlook is not published or is unavailable, the market remains open until data is available.
The resolution source for this market is the NOAA Storm Prediction Center at spc.noaa.gov.
This market uses coordinates 36.1627, -86.7816 for Nashville, TN.
Nguồn giải quyết
https://www.spc.noaa.gov/products/outlook/day1otlk.htmlResolver
0x65070BE91...Severe weather on August 19, 2026, featured marginal to slight risk areas per the NOAA Storm Prediction Center Day 1 Convective Outlook, with tornado probabilities capped at 2–5% across parts of the central and southern Plains and Midwest. Modest instability, weak deep-layer shear, and a tendency for linear storm modes limited discrete supercell development and rotation potential, consistent with August climatology showing reduced tornado frequency versus spring peaks. Confirmed reports included three brief tornado touchdowns in eastern Iowa and north-central Illinois, plus isolated activity near Indiana, aligning with low-end conditional threats from moisture and lift. Official NWS summaries and SPC analyses provide the resolution data, with traders monitoring these verified observations over model runs or preliminary alerts for final city-level determinations.
Tóm tắt AI thử nghiệm tham chiếu dữ liệu Polymarket. Đây không phải tư vấn giao dịch và không ảnh hưởng đến cách thị trường này được giải quyết. · Cập nhật

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