Alert archive / Michigan / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 49, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jul 16, 1997, 3:21 PM EDT for Roscommon County, Michigan. It was in force for 64 min. 1 report 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
- Jul 16, 1997, 3:21 PM EDT (19:21 UTC)
- Expired
- Jul 16, 1997, 4:25 PM EDT
- In force
- 64 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Roscommon County, MI
The radar
The NCL Michigan radar (KAPX), 64 km from the middle of the area, began a volume at 19:24 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 |
|---|---|---|---|
| Jul 16, 3:25 PM EDT | Thunderstorm Wind 52 | Higgins Lake, MI | Strong thunderstorm winds toppled several trees and utility poles. |
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 |
|---|---|---|---|
| Jul 16, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 7.4 hours before the alert went out and 193 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
- 1147 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1007 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMQT 161921 RRA SVRAPN MIC143-162025- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GAYLORD MI ISSUED BY NATIONAL WEATHER SERVICE MARQUETTE MI 321 PM EDT WED JUL 16 1997 * SEVERE THUNDERSTORM WARNING FOR ROSCOMMON COUNTY - NORTH CENTRAL LOWER MICHIGAN * UNTIL 425 PM EDT * SOME LOCATIONS AFFECTED HIGGINS LAKE HOUGHTON LAKE * AT 315 PM EDT DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF HIGGINS LAKE OR 10 MILES NORTH OF HOUGHTON LAKE. THE STORM WAS MOVING EAST AT 30 MILES AN HOUR. LARGE HAIL IS LIKELY WITH THIS STORM. * THE STORM WILL BE NEAR HIGGINS LAKE AT 325 PM AND NEAR ROSCOMMON AT 340 PM. STAY INDOORS AND AWAY FROM WINDOWS. IF YOU ARE CAUGHT OUTSIDE... SEEK SHELTER IN A STRONG BUILDING. OX/KC
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 3:08 PM EDT | Severe Thunderstorm Warning | APX | Missaukee, Wexford | 62 min |
| Jul 16, 3:29 PM EDT | Severe Thunderstorm Warning | APX | Oscoda | 46 min |
| Jul 16, 3:44 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Iosco, Ogemaw | 76 min |
| Jul 16, 4:13 PM EDT | Severe Thunderstorm Warning | APX | Arenac | 77 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1997Every severe thunderstorm warning in 1997
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.