Alert archive / Michigan / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 67, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 7, 1996, 4:35 PM EDT for Iosco County, Michigan. It was in force for 40 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
- Aug 7, 1996, 4:35 PM EDT (20:35 UTC)
- Expired
- Aug 7, 1996, 5:15 PM EDT
- In force
- 40 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Iosco County, MI
The radar
The NCL Michigan radar (KAPX), 117 km from the middle of the area, began a volume at 20:37 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 |
|---|---|---|---|
| Aug 7, 5:10 PM EDT | Thunderstorm Wind 55 | Whittemore, 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
Alpena, MI (KAPX), launched 12:00Z, 8.6 hours before the alert went out and 123 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
- 1951 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 728 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 82 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 7, 4:21 PM EDT, 14 minutes before
MIZ041-042-080200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GAYLORD MI 420 PM EDT WED AUG 7 1996 ...SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PORTIONS OF EASTCENTRAL LOWER MICHIGAN... A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR THE COUNTIES OF GLADWIN AND ARENAC IN EASTCENTRAL LOWER MICHIGAN UNTIL 1000 PM. THIS INCLUDES THE COMMUNITIES OF GLADWIN AND STANDISH. AT 415 PM...DOPPLER RADAR INDICATED A LINE OF SCATTERED THUNDERSTORMS FROM JUST NORTHEAST OF GLADWIN TO JUST WEST OF EAST TAWAS. THIS LINE WAS MOVING TO THE EAST AT 25 MPH AND WILL AFFECT EASTERN GLADWIN COUNTY THROUGH 500 PM AND ARENAC COUNTY THROUGH 540 PM. SOME STORMS MAY CONTAIN LARGE HAIL AND WIND GUSTS IN EXCESS OF 55 MPH. REMEMBER...A WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA. A COLD FRONT OVER THE UPPER MISSISSIPPI VALLEY WILL CONTINUE TO SLIDE EASTWARD THIS EVENING PRODUCING ADDITIONAL THUNDER&STORMS...SOME WHICH MAY BE SEVERE. KEEP ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND STAY TUNED TO YOUR LOCAL RADIO OR TELEVISION STATION FOR CONTINUING UPDATES AND POSSIBLE WARNINGS. SPRIGGS
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 3:47 PM EDT | Severe Thunderstorm Warning | APX | Ogemaw | 43 min |
| Aug 7, 4:31 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 44 min |
| Aug 7, 4:42 PM EDT | Flash Flood Warning | APX | Arenac | 48 min |
| Aug 7, 4:42 PM EDT | Severe Thunderstorm Warning | APX | Arenac | 48 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1996Every severe thunderstorm warning in 1996
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.