Alert archive / Michigan / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 79, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Sep 19, 2002, 6:21 PM EDT for Alcona County, Michigan. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 19, 2002, 6:21 PM EDT (22:21 UTC)
- Expired
- Sep 19, 2002, 7:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Gaylord, MI
- Area
- Counties, with a storm outline in the text
County Alcona County, MI
The radar
The NCL Michigan radar (KAPX), 97 km from the middle of the area, began a volume at 22:20 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 |
|---|---|---|---|
| Sep 19, 6:30 PM EDT | Thunderstorm Wind 50 E | Glennie, MI | Numerous trees down. |
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, 10.4 hours before the alert went out and 97 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
- 1028 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
204 WUUS53 KAPX 192221 SVRAPN MIC001-192300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GAYLORD MI 621 PM EDT THU SEP 19 2002 THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... ALCONA COUNTY IN NORTHEAST LOWER MICHIGAN * UNTIL 700 PM EDT * AT 621 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES SOUTHEAST OF GLENNIE...MOVING NORTH AT 40 MPH. * THE SEVERE THUNDERSTORM WILL REACH... BARTON CITY AROUND 635 PM EDT HUBBARD LAKE AROUND 645 PM EDT SPRUCE AROUND 655 PM EDT REMAIN INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS STORM IS CAPABLE OF PRODUCING WIND GUSTS BETWEEN 60 AND 80 MPH ALONG WITH DIME SIZED OR LARGER HAIL. WINDS THIS HIGH CAN DOWN TREES AND POWER LINES. LAT...LON 4485 8335 4452 8350 4451 8376 4485 8367
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 4:24 PM EDT | Special Marine Warning | APX | 96 min | |
| Sep 19, 5:14 PM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin | 46 min |
| Sep 19, 5:25 PM EDT | Special Marine Warning | APX | 95 min | |
| Sep 19, 5:25 PM EDT | Special Marine Warning | APX | 95 min | |
| Sep 19, 5:40 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 50 min |
| Sep 19, 5:58 PM EDT | Special Marine Warning | APX | 92 min | |
| Sep 19, 5:58 PM EDT | Special Marine Warning | APX | 92 min | |
| Sep 19, 6:09 PM EDT | Severe Thunderstorm Warning | APX | Charlevoix | 51 min |
| Sep 19, 6:18 PM EDT | Tornado Warning | APX | Emmet | 27 min |
| Sep 19, 6:18 PM EDT | Tornado Warning | APX | Emmet | 27 min |
| Sep 19, 6:54 PM EDT | Special Marine Warning | APX | 66 min | |
| Sep 19, 7:06 PM EDT | Special Marine Warning | APX | 54 min | |
| Sep 19, 7:58 PM EDT | Special Marine Warning | APX | 62 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2002Every severe thunderstorm warning in 2002
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.