Alert archive / Michigan / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 77, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Sep 19, 2002, 5:40 PM EDT for Iosco County, Michigan. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 19, 2002, 5:40 PM EDT (21:40 UTC)
- Expired
- Sep 19, 2002, 6:30 PM EDT
- In force
- 50 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 21:40 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.
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 9.7 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
- 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.
886 WUUS53 KAPX 192140 SVRAPN MIC069-192230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GAYLORD MI 539 PM EDT THU SEP 19 2002 THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... IOSCO COUNTY IN NORTHEAST LOWER MICHIGAN * UNTIL 630 PM EDT * AT 539 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTH OF WHITTEMORE...OR ABOUT 8 MILES NORTHWEST OF AU GRES...MOVING NORTHEAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL REACH... NATIONAL CITY...INTERSECTION OF M-55 AND M-65 AROUND 545 PM EDT SID TOWN...WILBER AROUND 600 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.
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, 5:58 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, 6:21 PM EDT | Severe Thunderstorm Warning | APX | Alcona | 39 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.