Alert archive / Indiana / Areal Flood Advisories in 2021
Areal Flood Advisory 19, NWS Indianapolis, IN
NWS Indianapolis, IN issued this areal flood advisory at Jul 1, 2021, 4:58 AM EDT for Hendricks County, Marion County, Indiana. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 1, 2021, 4:58 AM EDT (08:58 UTC)
- Expired
- Jul 1, 2021, 8:00 AM EDT
- In force
- 3 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
Counties Hendricks County, IN, Marion County, IN
The radar
The Indianapolis radar (KIND), 8 km from the middle of the area, began a volume at 08:58 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, 9.0 hours before the alert went out and 198 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
- 573 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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, 7:34 PM EDT, 9 hours 24 minutes earlier.
Area forecast discussion, Jun 30, 7:34 PM EDT, 9 hours 24 minutes before
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</html>Hazardous weather outlook, Jun 30, 3:04 PM EDT, 13 hours 54 minutes before
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<div class="status" id="status">Temporary Notice</div>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Jun 30, 9:46 PM EDT | Flash Flood Watch | IND | Bartholomew, Brown, Clay, Daviess, Decatur, Greene and 17 more | 15 hr |
| Jul 1, 12:22 AM EDT | Flash Flood Warning | IND | Clay, Vigo | 3 hr |
| Jul 1, 2:00 AM EDT | Flash Flood Warning | IND | Hendricks, Marion | 3 hr |
| Jul 1, 2:24 AM EDT | Flash Flood Warning | IND | Fountain, Montgomery | 3 hr |
| Jul 1, 2:42 AM EDT | Flash Flood Warning | IND | Hancock, Shelby | 3 hr |
| Jul 1, 2:45 AM EDT | Flash Flood Warning | IND | Boone, Hamilton, Hancock, Hendricks, Marion | 3 hr |
| Jul 1, 4:06 AM EDT | Flash Flood Warning | IND | Clinton, Hamilton, Tipton | 3 hr |
| Jul 1, 8:00 AM EDT | Areal Flood Advisory | IND | Boone, Hamilton, Hancock, Hendricks, Johnson, Marion and 6 more | 6 hr |
| Jul 1, 8:57 AM EDT | Areal Flood Advisory | IND | Clay, Greene, Monroe, Owen | 6 hr |
| Jul 1, 1:02 PM EDT | River Flood Warning | IND | Parke, Vermillion, Vigo | 62 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.