Frontal systems and abundant moisture across the central U.S. are the main drivers of precipitation chances on September 20, 2026, with the National Weather Service and Weather Prediction Center highlighting a moderate risk of excessive rainfall in parts of the Midwest, including eastern Iowa, northern Illinois, and Indiana. Scattered showers and thunderstorms are expected to develop along a slow-moving boundary, supported by high dew points and model consensus from HREF and REFS ensembles showing localized 1–3 inch totals. The Ohio Valley and Northeast face slight risks as the front advances, while Florida and the southern Plains see ongoing convective activity tied to southerly flow. Official 6- and 12-hour probability of precipitation (PoP) and quantitative precipitation forecast (QPF) updates from NWS offices will refine timing and amounts ahead of resolution, with radar trends providing the most immediate verification data for traders.
Ringkasan eksperimental yang dihasilkan AI dengan referensi data Polymarket. Ini bukan saran trading dan tidak berperan dalam bagaimana pasar ini diselesaikan. · DiperbaruiWhere will it rain on September 20?
New York, NY
92%
Los Angeles, CA
5%
Chicago, IL
96%
Houston, TX
3%
Dallas, TX
38%
Phoenix, AZ
24%
Philadelphia, PA
87%
Denver, CO
19%
Washington, DC
67%
Atlanta, GA
60%
Miami, FL
80%
Seattle, WA
6%
Boston, MA
92%
New Orleans, LA
8%
San Francisco, CA
6%
$1,150 Vol.
New York, NY
92%
Los Angeles, CA
5%
Chicago, IL
96%
Houston, TX
3%
Dallas, TX
38%
Phoenix, AZ
24%
Philadelphia, PA
87%
Denver, CO
19%
Washington, DC
67%
Atlanta, GA
60%
Miami, FL
80%
Seattle, WA
6%
Boston, MA
92%
New Orleans, LA
8%
San Francisco, CA
6%
Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Pasar Dibuka: Sep 19, 2026, 7:09 AM ET
Resolver
0x65070BE91...Measurable precipitation means 0.01 inches or more as reported by the PRECIPITATION (IN) figure in the NWS Daily Climate Report (CLI) for the city's station.
A report of trace ("T") does not qualify.
The PRECIPITATION (IN) figure measures total liquid-equivalent precipitation and does not distinguish between precipitation types.
The observation period is the NWS climate day for KNYC: midnight to midnight local standard time. The final CLI report for a climate day is issued the following morning.
This market will resolve according to the NWS Daily Climate Report as published by 2:00 PM ET on the day following the observation date. If multiple versions of the report are issued, the last version published before that time governs. If no figure has been published by that time, this market will resolve to "No".
The resolution source for this market is the NWS Daily Climate Report (CLI) for KNYC, published at https://forecast.weather.gov/product.php?site=NWS&product=CLI&issuedby=NYC.
Resolver
0x65070BE91...Frontal systems and abundant moisture across the central U.S. are the main drivers of precipitation chances on September 20, 2026, with the National Weather Service and Weather Prediction Center highlighting a moderate risk of excessive rainfall in parts of the Midwest, including eastern Iowa, northern Illinois, and Indiana. Scattered showers and thunderstorms are expected to develop along a slow-moving boundary, supported by high dew points and model consensus from HREF and REFS ensembles showing localized 1–3 inch totals. The Ohio Valley and Northeast face slight risks as the front advances, while Florida and the southern Plains see ongoing convective activity tied to southerly flow. Official 6- and 12-hour probability of precipitation (PoP) and quantitative precipitation forecast (QPF) updates from NWS offices will refine timing and amounts ahead of resolution, with radar trends providing the most immediate verification data for traders.
Ringkasan eksperimental yang dihasilkan AI dengan referensi data Polymarket. Ini bukan saran trading dan tidak berperan dalam bagaimana pasar ini diselesaikan. · Diperbarui


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