Alert archive / Michigan / Tornado Warnings in 2002

Tornado Warning 1, NWS Gaylord, MI

July 28, 2002Ogemaw County, Roscommon County, Michigan

NWS Gaylord, MI issued this tornado warning at Jul 28, 2002, 4:05 AM EDT for Ogemaw County, Roscommon County, Michigan. It was in force for 25 min. 2 reports 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: Jul 28, 2002, 4:05 AM EDT (08:05 UTC)
Expired: Jul 28, 2002, 4:30 AM EDT
In force: 25 min
Issued by: NWS Gaylord, MI
Area: Counties, with a storm outline in the text

Counties Ogemaw County, MI, Roscommon County, MI

The radar

The NCL Michigan radar (KAPX), 83 km from the middle of the area, began a volume at 08:04 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 28, 4:20 AM EDT	Hail 0.88	West Branch, MI
Jul 28, 4:25 AM EDT	Thunderstorm Wind 50 E	West Branch, MI	Tree down at Ogemaw County Fairgrounds

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 00:00Z, 8.1 hours before the alert went out and 178 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1426 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

119 
WFUS53 KAPX 280805
TORAPN
MIC129-143-280830-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
403 AM EDT SUN JUL 28 2002

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* TORNADO WARNING FOR...
  OGEMAW COUNTY IN NORTHEAST LOWER MICHIGAN
  ROSCOMMON COUNTY IN NORTHEAST LOWER MICHIGAN

* UNTIL 430 AM EDT

* AT 400 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER TWIN LAKES AREA...
  OR ABOUT 11 MILES SOUTH OF ST. HELEN...MOVING EAST AT 30 MPH.

* THE TORNADIC STORM WILL REACH...
  WEST BRANCH AROUND 415 AM EDT
  SKIDWAY LAKE...PRESCOTT AROUND 430 AM EDT

IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IN A BASEMENT OR
AN INTERIOR ROOM ON THE LOWEST FLOOR. VEHICLES AND MOBILE HOMES
SHOULD BE ABANDONED FOR STURDIER SHELTER.

LAT...LON 4417 8456 4431 8455 4429 8393 4417 8394

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 2:17 AM EDT	Special Marine Warning	APX		58 min
Jul 28, 2:17 AM EDT	Special Marine Warning	APX		58 min
Jul 28, 4:30 AM EDT	Severe Thunderstorm Warning	APX	Ogemaw	15 min
Jul 28, 4:40 AM EDT	Severe Thunderstorm Warning	APX	Iosco	35 min
Jul 28, 4:52 AM EDT	Severe Thunderstorm Warning	APX	Arenac	23 min
Jul 28, 4:55 AM EDT	Special Marine Warning	APX		65 min
Jul 28, 4:55 AM EDT	Special Marine Warning	APX		65 min
Jul 28, 5:02 AM EDT	Severe Thunderstorm Warning	APX	Arenac	13 min

Nearby

Tornado Warnings in Michigan, 2002 Every tornado warning in 2002 Tornadoes 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.