Alert archive / Michigan / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 87, NWS Northern Indiana
NWS Northern Indiana issued this severe thunderstorm warning at Jun 12, 1999, 6:48 PM EDT for Branch County, Hillsdale County, Michigan. 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
- Jun 12, 1999, 6:48 PM EDT (22:48 UTC)
- Expired
- Jun 12, 1999, 7:35 PM EDT
- In force
- 47 min
- Issued by
- NWS Northern Indiana
- Area
- Whole counties
Counties Branch County, MI, Hillsdale County, MI
The radar
The Northern Indiana radar (KIWX), 94 km from the middle of the area, began a volume at 22:49 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 |
|---|---|---|---|
| Jun 12, 7:00 PM EDT | Thunderstorm Wind | Hillsdale, MI | Power lines and a tree reported down. |
| Jun 12, 7:00 PM EDT | Thunderstorm Wind | Kinderhook, MI | SKYWARN spotter reported power lines and one tree down. |
| Jun 12, 7:00 PM EDT | Thunderstorm Wind | Kinderhook, MI | SKYWARN spotter reported power lines downed on north side of Lake George. A three-foot diameter tree fell onto a garage. Parts of roofs also were damaged. |
| Jun 12, 7:00 PM EDT | Hail 0.88 | Kinderhook, MI |
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
Detroit, MI (KDTX), launched 12:00Z, 10.8 hours before the alert went out and 146 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
- 328 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1376 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 1:34 PM EDT | Severe Thunderstorm Warning | IWX | Blackford, Jay | 51 min |
| Jun 12, 2:27 PM EDT | Severe Thunderstorm Warning | IWX | Jay | 33 min |
| Jun 12, 6:32 PM EDT | Severe Thunderstorm Warning | IWX | Wabash | 33 min |
| Jun 12, 6:44 PM EDT | Severe Thunderstorm Warning | IWX | Whitley | 46 min |
| Jun 12, 7:13 PM EDT | Severe Thunderstorm Warning | IWX | Noble | 47 min |
| Jun 12, 7:19 PM EDT | Severe Thunderstorm Warning | IWX | Wabash | 36 min |
| Jun 12, 3:15 PM EDT | Severe Thunderstorm Warning | IWX | Van Wert | 35 min |
| Jun 11, 9:54 PM EDT | Severe Thunderstorm Warning | IWX | Hillsdale | 31 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 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.