Alert archive / Indiana / Special Weather Statements in 2017
Special Weather Statement, NWS Indianapolis, IN
NWS Indianapolis, IN issued this special weather statement at Apr 20, 2017, 1:15 PM EDT for Tippecanoe County, Indiana. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 20, 2017, 1:15 PM EDT (17:15 UTC)
- Expired
- Apr 20, 2017, 1:45 PM EDT
- In force
- 30 min
- Issued by
- NWS Indianapolis, IN
County Tippecanoe County, IN
The radar
The Indianapolis radar (KIND), 83 km from the middle of the area, began a volume at 17:16 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 12:00Z, 5.3 hours before the alert went out and 162 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
- 241 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1197 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.8
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 20, 10:14 AM EDT, 3 hours 1 minute earlier.
Area forecast discussion, Apr 20, 10:14 AM EDT, 3 hours 1 minute before
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</html>Hazardous weather outlook, Apr 20, 9:37 AM EDT, 3 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Indianapolis IN 937 AM EDT Thu Apr 20 2017 INZ021-028>031-035>049-051>057-060>065-067>072-211000- 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 Lafayette, Frankfort, Kokomo, Crawfordsville, Anderson, Muncie, Indianapolis, Terre Haute, Shelbyville, Bloomington, Columbus, Vincennes, Bedford, and Seymour 937 AM EDT Thu Apr 20 2017 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. Outlook: There is a slight risk for severe storms this afternoon and evening across central Indiana. Scattered severe storms are possible. Hazards: Damaging winds, isolated tornadoes, large hail, heavy rain, and frequent cloud to ground lightning. Timing: Between 100 PM and 900 PM. Discussion: An upper wave and cold front will move through the area this afternoon, triggering showers and thunderstorms. Some could become severe at times. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Outlook: Rain showers Friday and Saturday. Discussion: A low pressure system south of Indiana will bring rain chances on Friday and Saturday. Much colder air moves in for the weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested this afternoon and evening. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
In the hours before
Special weather statement, Apr 20, 1:15 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 3:21 PM EDT | Special Weather Statement | IND | Montgomery, Vermillion | 24 min |
| Apr 20, 3:32 PM EDT | Special Weather Statement | IND | Tippecanoe | 28 min |
| Apr 20, 3:42 PM EDT | Special Weather Statement | IND | Parke | 33 min |
| Apr 20, 3:46 PM EDT | Special Weather Statement | IND | Montgomery | 29 min |
| Apr 20, 4:07 PM EDT | Special Weather Statement | IND | Jackson | 23 min |
| Apr 20, 4:15 PM EDT | Special Weather Statement | IND | Parke | 30 min |
| Apr 20, 4:22 PM EDT | Severe Thunderstorm Warning | IND | Clay, Parke, Putnam, Vigo | 23 min |
| Apr 20, 4:44 PM EDT | Severe Thunderstorm Warning | IND | Owen, Putnam | 31 min |
| Apr 20, 5:03 PM EDT | Tornado Warning | IND | Hamilton, Madison | 27 min |
| Apr 20, 5:12 PM EDT | Severe Thunderstorm Warning | IND | Johnson, Morgan | 33 min |
| Apr 20, 7:02 PM EDT | Tornado Warning | IND | Bartholomew, Brown, Jackson, Jennings | 28 min |
| Apr 20, 7:31 PM EDT | Severe Thunderstorm Warning | IND | Jackson, Jennings | 29 min |
Nearby
Special Weather Statements in Indiana, 2017Every special weather statement in 2017
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.