Alert archive / Wisconsin / Tornado Watches in 1998
Tornado Watch 838
The Storm Prediction Center issued this tornado watch at Sep 26, 1998, 4:00 PM EDT for 24 counties in Michigan; 26 counties in Wisconsin. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 1998, 4:00 PM EDT (20:00 UTC)
- Expired
- Sep 26, 1998, 10:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Alcona County, MI, Alpena County, MI, Antrim County, MI, Benzie County, MI, Cheboygan County, MI, Clare County, MI, Crawford County, MI, Emmet County, MI, Grand Traverse County, MI, Iosco County, MI, Kalkaska County, MI, Lake County, MI, Leelanau County, MI, Manistee County, MI, Mason County, MI, Missaukee County, MI, Montmorency County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Wexford County, MI, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Dodge County, WI, Door County, WI, Fond du Lac County, WI, Green Lake County, WI, Juneau County, WI, Kewaunee County, WI, Manitowoc County, WI, Marathon County, WI, Marquette County, WI, Menominee County, WI, Oconto County, WI, Outagamie County, WI, Ozaukee County, WI, Portage County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Washington County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 8:50 PM EDT | Severe Thunderstorm Warning | APX | Emmet | 65 min |
| Sep 26, 9:25 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan | 45 min |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 44 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
- 2 J/kg
- Mixed-layer CIN
- -235 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Sep 26, 4:30 AM EDT | Severe Thunderstorm Watch | SPC | Alcona, Alpena, Antrim, Arenac, Bay, Charlevoix and 26 more | 6 hr |
| Sep 26, 12:45 PM EDT | Tornado Watch | SPC | Alcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 15 more | 5 hr |
| Sep 26, 1:00 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Barron, Buffalo, Burnett, Chippewa, Clark and 22 more | 6 hr |
| Sep 26, 7:00 AM EDT | Severe Thunderstorm Watch | SPC | Buffalo, Clark, Eau Claire, Jackson, Juneau, La Crosse and 6 more | 6 hr |
Nearby
Tornado Watches in Wisconsin, 1998Tornado Watches in Michigan, 1998Every tornado watch in 1998
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.