Alert archive / Michigan / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 434
The Storm Prediction Center issued this severe thunderstorm watch at Jun 15, 2001, 12:30 PM EDT for 19 counties in Michigan. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2001, 12:30 PM EDT (16:30 UTC)
- Expired
- Jun 15, 2001, 6:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
Counties Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Charlevoix County, MI, Cheboygan County, MI, Crawford County, MI, Emmet County, MI, Grand Traverse County, MI, Iosco County, MI, Kalkaska County, MI, Missaukee County, MI, Montmorency County, MI, Ogemaw County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 20 km from the middle of the area, began a volume at 16:42 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.
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 12:58 PM EDT | Severe Thunderstorm Warning | APX | Antrim | 47 min |
| Jun 15, 1:01 PM EDT | Severe Thunderstorm Warning | APX | Crawford | 44 min |
| Jun 15, 1:15 PM EDT | Severe Thunderstorm Warning | APX | Charlevoix | 45 min |
| Jun 15, 1:22 PM EDT | Severe Thunderstorm Warning | APX | Otsego | 53 min |
| Jun 15, 2:05 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan | 40 min |
| Jun 15, 4:13 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Alpena | 62 min |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 4.5 hours before the alert went out and 275 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 929 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -86 m²/s²
- 0-3 km storm-relative helicity
- -44 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.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 12:00 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Barry, Bay, Branch, Calhoun, Cass and 19 more | 5 hr |
| Jun 15, 4:00 PM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Arenac, Bay, Clinton, Eaton and 26 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Michigan, 2001Every severe thunderstorm watch in 2001
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.