Alert archive / Indiana / River Flood Warnings in 2026
River Flood Warning 89, NWS Indianapolis, IN
NWS Indianapolis, IN issued this river flood warning at May 20, 2026, 11:56 AM EDT for Greene County, Monroe County, Owen County, Indiana. It took effect at May 20, 2026, 10:15 PM EDT. It was in force for 38 hr.
The area
The counties it named.
The facts
- Issued
- May 20, 2026, 11:56 AM EDT (15:56 UTC)
- In effect from
- May 20, 2026, 10:15 PM EDT
- Expired
- May 22, 2026, 12:02 PM EDT
- In force
- 38 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Greene County, IN, Monroe County, IN, Owen County, IN
The radar
The Indianapolis radar (KIND), 73 km from the middle of the area, began a volume at 15:56 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point White River (IN) at Spencer (SPNI3). The gauge peaked at 15.31 ft at May 21, 2026, 6:00 PM EDT.
- Action stage
- 9 ft
- Minor stage
- 14 ft
- Moderate stage
- 20 ft
- Major stage
- 24 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 03357000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Indianapolis, IN wrote its last area forecast discussion before this river flood warning went out at May 20, 6:46 AM EDT, 5 hours 10 minutes earlier. Its key messages:
- A Flood Watch remains in effect until 2pm today across south central Indiana
- Cooler mid week with a brief break from rain chances, before showers and storms return to the forecast late week into the holiday weekend
Area forecast discussion, May 20, 6:46 AM EDT, 5 hours 10 minutes before
Area Forecast Discussion National Weather Service Indianapolis IN 646 AM EDT Wed May 20 2026 .KEY MESSAGES... - A Flood Watch remains in effect until 2pm today across south central Indiana - Cooler mid week with a brief break from rain chances, before showers and storms return to the forecast late week into the holiday weekend && .DISCUSSION (Today through Tuesday)... Issued at 332 AM EDT Wed May 20 2026 Today - Precip along the cold front slowed southward progress this evening, but the boundary will continue to slowly sag through the region today. Upper level waves moving along the front will produce additional showers and a few thunderstorms today, primarily across the southeastern half of the area, and mainly through mid afternoon before rain chances rapidly taper off across the area. Will maintain the flood watch in place across the south given this expectation and continued plentiful deep moisture through midday. Relatively minimal instability will limit coverage and intensity of thunderstorms, with no severe weather expected. Tonight through Tuesday - High pressure will produce cooler conditions through much of the rest of the work week, with rain chances returning as a broad upper level low and associated shortwave disturbances pull a warmer and moist airmass back into the region. Model agreement is fairly high on what may end up being a washout on Friday, though discrepancies increase quite a bit beyond then. Blend PoPs have increased in the past 24 hours for the holiday weekend, though there is significant uncertainty in coverage at any one time, and changes are likely in the coming days. Nonetheless, rain chances and above normal temperatures will characterize the coming holiday weekend into early next week. && .AVIATION (12Z TAF Issuance)... Issued at 646 AM EDT Wed May 20 2026 Impacts: - Showers and a few thunderstorms, primarily from HUF/IND southeastward - Widespread MVFR ceilings with periods of IFR at BMG Discussion: A front has slowly moved just to our southeast overnight but continues to produce showers across the southeastern half of the area, and will do so much of today. A rumble of thunder cannot be ruled out but is too low probability for inclusion in the TAF. Trapped low level moisture is producing widespread MVFR ceilings with some IFR in far southern portions of the area. Most sites will remain MVFR at worst but periods of IFR are likely at BMG. Winds will generally be northerly early in the period, becoming more northeasterly with time. A gust or two cannot be completely ruled out, mainly at LAF, but is likely to be too sporadic for inclusion. && .IND WATCHES/WARNINGS/ADVISORIES... Flood Watch until 2 PM EDT this afternoon for INZ052>055-060>064- 067>072. && AVIATION...Nield DISCUSSION...Nield
Hazardous weather outlook, May 20, 3:42 AM EDT, 8 hours 14 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 342 AM EDT Wed May 20 2026 INZ052>055-060>064-067>072-210745- Clay-Owen-Morgan-Johnson-Sullivan-Greene-Monroe-Brown-Bartholomew- Knox-Daviess-Martin-Lawrence-Jackson-Jennings- 342 AM EDT Wed May 20 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. A Flood Watch is in effect until 2 PM today. Thunderstorms are possible today, some of which may produce locally heavy rain and flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Additional chances for thunderstorms return Friday into the holiday weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind INZ021-028>031-035>049-051-056-057-065-210745- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam- Hendricks-Marion-Hancock-Henry-Vigo-Shelby-Rush-Decatur- 342 AM EDT Wed May 20 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Additional chances for thunderstorms return Friday into the holiday weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 10:02 PM EDT | Areal Flood Warning | IND | Daviess, Greene, Knox, Lawrence, Martin | 6 hr |
| May 20, 7:51 AM EDT | Areal Flood Advisory | IND | Bartholomew, Brown, Daviess, Greene, Knox, Lawrence and 4 more | 5 hr |
| May 20, 8:27 AM EDT | River Flood Warning | IND | Johnson | 37 hr |
| May 20, 9:54 AM EDT | Areal Flood Warning | IND | Daviess, Greene, Knox, Martin | 9 hr |
| May 20, 11:56 AM EDT | River Flood Warning | IND | Bartholomew, Jackson | 47 hr |
| May 20, 11:56 AM EDT | River Flood Warning | IND | Bartholomew | 51 hr |
| May 20, 11:56 AM EDT | River Flood Warning | IND | Lawrence, Martin | 10 days |
| May 20, 12:13 PM EDT | River Flood Warning | IND | Decatur | 8 hr |
| May 20, 1:01 PM EDT | Areal Flood Warning | IND | Brown, Greene, Monroe, Owen | 6 hr |
| May 20, 2:48 PM EDT | Areal Flood Warning | IND | Decatur, Rush | 9 hr |
Nearby
River Flood Warnings in Indiana, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.