Alert archive / Indiana / Areal Flood Advisories in 2021
Areal Flood Advisory 18, NWS Indianapolis, IN
NWS Indianapolis, IN issued this areal flood advisory at Jun 30, 2021, 6:43 AM EDT for Hancock County, Henry County, Rush County, Indiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 30, 2021, 6:43 AM EDT (10:43 UTC)
- Expired
- Jun 30, 2021, 9:45 AM EDT
- In force
- 3 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
Counties Hancock County, IN, Henry County, IN, Rush County, IN
The radar
The Indianapolis radar (KIND), 64 km from the middle of the area, began a volume at 10:41 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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 10.7 hours before the alert went out and 263 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1000 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 1133 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 30, 6:28 AM EDT, 15 minutes earlier.
Area forecast discussion, Jun 30, 6:28 AM EDT, 15 minutes before
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</html>Hazardous weather outlook, Jun 30, 3:27 AM EDT, 3 hours 16 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 327 AM EDT Wed Jun 30 2021 INZ021-028>031-035>049-051>057-060>065-067>072-011000- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam- Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby- Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess- Martin-Lawrence-Jackson-Jennings- Including the cities of Delphi, Flora, Williamsport, West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington, Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, New Castle, Terre Haute, Brazil, Clay City, Spencer, Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, Brownstown, and North Vernon 327 AM EDT Wed Jun 30 2021 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. Numerous showers and thunderstorms will develop in the moist and unstable airmass through today and tonight. A few stronger storms will be capable of producing damaging winds...mainly this afternoon near and south of Interstate 70. Dangerous cloud to ground lightning and heavy rainfall producing localized flooding will be the primary threats from storms. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Showers and thunderstorms will continue on Thursday with dry weather expected Friday through the holiday weekend. Storms will be capable of producing heavy rainfall. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind Ryan
In the hours before
Special weather statement, Jun 30, 5:48 AM EDT, 55 minutes before
Special Weather Statement National Weather Service Indianapolis IN 548 AM EDT Wed Jun 30 2021 INZ036-044-045-301015- Montgomery-Putnam-Parke- 548 AM EDT Wed Jun 30 2021 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PARKE...SOUTHERN MONTGOMERY AND NORTHERN PUTNAM COUNTIES... At 548 AM EDT, a strong thunderstorm was located 10 miles northwest of Greencastle, or 18 miles south of Crawfordsville, moving east at 30 mph. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Roachdale, Bainbridge, Fillmore, Waveland, Russellville, Carpentersville, Cecil Harden Lake and Groveland. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 3988 8711 3992 8669 3966 8669 3968 8706 TIME...MOT...LOC 0948Z 266DEG 25KT 3978 8693 Ryan
Special weather statement, Jun 30, 6:09 AM EDT, 34 minutes before
Special Weather Statement
National Weather Service Indianapolis IN
609 AM EDT Wed Jun 30 2021
INZ045-046-301100-
Putnam-Hendricks-
609 AM EDT Wed Jun 30 2021
...A STRONG THUNDERSTORM WILL AFFECT HENDRICKS AND NORTHEASTERN
PUTNAM COUNTIES...
At 609 AM EDT, a strong thunderstorm was located 12 miles northeast
of Greencastle, or 17 miles southeast of Crawfordsville, moving east
at 30 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Plainfield, Brownsburg, Danville, Avon, Pittsboro, Clayton,
Roachdale, Bainbridge, Fillmore, Coatesville, North Salem, Lizton,
Amo, Carpentersville and Groveland.
This includes the following highways...
Interstate 70 between mile markers 67 and 68.
Interstate 74 between mile markers 57 and 69.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
LAT...LON 3987 8670 3988 8669 3992 8634 3967 8633
3967 8682 3987 8684
TIME...MOT...LOC 1009Z 264DEG 25KT 3981 8675
RyanThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:48 AM EDT | Special Weather Statement | IND | Putnam | 27 min |
| Jun 30, 5:52 AM EDT | Areal Flood Advisory | IND | Hamilton, Hancock, Marion | 3 hr |
| Jun 30, 6:09 AM EDT | Special Weather Statement | IND | Hendricks | 51 min |
| Jun 30, 6:40 AM EDT | Areal Flood Advisory | IND | Morgan, Owen | 3 hr |
| Jun 30, 10:53 AM EDT | Areal Flood Warning | IND | Monroe, Morgan | 6 hr |
| Jun 30, 10:54 AM EDT | Areal Flood Warning | IND | Hancock, Henry, Rush | 6 hr |
Nearby
Areal Flood Advisories in Indiana, 2021Every areal flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.