Alert archive / Indiana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 9, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 20, 2000, 12:50 PM EST for Vigo County, Indiana. It was in force for 25 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Apr 20, 2000, 12:50 PM EST (17:50 UTC)
- Expired
- Apr 20, 2000, 1:15 PM EST
- In force
- 25 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Vigo County, IN
The radar
The Indianapolis radar (KIND), 105 km from the middle of the area, began a volume at 17:52 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 20, 12:55 PM EST | Thunderstorm Wind 60 E | Terre Haute, IN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 20, 10:00 AM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 5.8 hours before the alert went out and 127 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
- 595 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KIND 201751 SVRIND INC167-201815- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 1250 PM EST THU APR 20 2000 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... VIGO COUNTY IN WEST CENTRAL INDIANA * UNTIL 115 PM EST * AT 1247 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES SOUTHWEST OF RILEY...OR ABOUT 11 MILES SOUTH OF TERRE HAUTE...MOVING NORTHEAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... RILEY AT 1255 PM EST TERRE HAUTE AT 100 PM EST NORTH TERRE HAUTE AT 105 PM EST A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EST THURSDAY AFTERNOON FOR WESTERN INDIANA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN INDIANAPOLIS. LAT...LON 3934 8761 3926 8731 3959 8723 3960 8749
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 6:58 AM EST | Severe Thunderstorm Warning | IND | Madison | 32 min |
| Apr 20, 10:45 AM EST | Severe Thunderstorm Warning | IND | Warren | 30 min |
| Apr 20, 10:59 AM EST | Severe Thunderstorm Warning | IND | Tippecanoe | 31 min |
| Apr 20, 11:18 AM EST | Tornado Warning | IND | Tippecanoe | 27 min |
| Apr 20, 11:34 AM EST | Tornado Warning | IND | Carroll | 41 min |
| Apr 20, 1:01 PM EST | Severe Thunderstorm Warning | IND | Clay | 29 min |
| Apr 20, 1:23 PM EST | Severe Thunderstorm Warning | IND | Putnam | 37 min |
| Apr 20, 1:31 PM EST | Severe Thunderstorm Warning | IND | Clay | 14 min |
| Apr 20, 1:37 PM EST | Severe Thunderstorm Warning | IND | Owen | 38 min |
| Apr 20, 1:39 PM EST | Severe Thunderstorm Warning | IND | Hendricks | 51 min |
| Apr 20, 2:37 PM EST | Severe Thunderstorm Warning | IND | Monroe, Morgan | 38 min |
| Apr 20, 2:58 PM EST | Severe Thunderstorm Warning | IND | Lawrence | 32 min |
| Apr 20, 3:04 PM EST | Severe Thunderstorm Warning | IND | Johnson | 26 min |
| Apr 20, 3:19 PM EST | Severe Thunderstorm Warning | IND | Shelby | 26 min |
| Apr 20, 3:48 PM EST | Severe Thunderstorm Warning | IND | Decatur, Rush | 42 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.