Alert archive / Indiana / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 21, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Apr 22, 1999, 3:18 PM EST for Kosciusko County, Marshall County, Indiana. It was in force for 47 min. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 22, 1999, 3:18 PM EST (20:18 UTC)
- Expired
- Apr 22, 1999, 4:05 PM EST
- In force
- 47 min
- Issued by
- NWS Northern Indiana
- Area
- Whole counties
Counties Kosciusko County, IN, Marshall County, IN
The radar
The Northern Indiana radar (KIWX), 31 km from the middle of the area, began a volume at 20:11 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 22, 3:30 PM EST | Thunderstorm Wind | Argos, IN | Conservation officer reported to county sheriff that trees and power lines were down. |
| Apr 22, 3:30 PM EST | Thunderstorm Wind 60 | Bourbon, IN | Thunderstorm wind gusts damaged two 15-inch diameter pine trees. Tree trunks were broken half way up. Two other 15-inch diameter pine trees were uprooted. |
| Apr 22, 3:40 PM EST | Thunderstorm Wind | Etna Green, IN | Sheiff and amateur radio operator reported several trees blown down and a roof blown off of a repair shop. |
| Apr 22, 3:55 PM EST | Thunderstorm Wind 60 | Warsaw, IN | Thunderstorm wind gusts of 55 to 60 MPH reported by an off-duty NWS employee. |
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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.3 hours before the alert went out and 248 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
- 13 J/kg
- Mixed-layer CIN
- -237 J/kg
- Mixed-layer LCL
- 1518 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS53 KIWX 222019 RRA SVRFWA INC085-099-222105- BULLETIN- EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTHERN INDIANA 318 PM EST THU APR 22 1999 THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... KOSCIUSKO COUNTY IN NORTH CENTRAL INDIANA SOUTHEASTERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA * UNTIL 405 PM EST * AT 318 PM EST... DOPPLER RADAR AT NORTH WEBSTER INDICATED A SEVERE THUNDERSTORM NEAR THE FULTON/MARSHALL COUNTY LINE AT US HIGHWAY 31 OR 7 MILES NORTH OF ROCHESTER. THE STORM WAS MOVING EAST NORTHEAST AT 40 MPH. * SOME LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM ARE... MENTONE PALESTINE WARSAW 3/4 INCH HAIL OR LARGER IS LIKELY SEEK SHELTER IMMEDIATELY.
The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:56 PM EST | Severe Thunderstorm Warning | IWX | Noble, Whitley | 44 min |
| Apr 22, 4:09 PM EST | Tornado Warning | IWX | Noble | 26 min |
| Apr 22, 4:24 PM EST | Severe Thunderstorm Warning | IWX | DeKalb, Steuben | 46 min |
| Apr 22, 4:46 PM EST | Severe Thunderstorm Warning | IWX | Kosciusko, Whitley | 44 min |
| Apr 22, 5:23 PM EST | Severe Thunderstorm Warning | IWX | Allen | 27 min |
| Apr 22, 5:52 PM EST | Severe Thunderstorm Warning | IWX | Huntington | 48 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1999Every severe thunderstorm warning in 1999
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.