Alert archive / Michigan / Tornado Warnings in 2011

Tornado Warning 2, NWS Gaylord, MI

June 22, 2011Crawford County, Roscommon County, Michigan

NWS Gaylord, MI issued this tornado warning at Jun 22, 2011, 8:31 PM EDT for Crawford County, Roscommon County, Michigan. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 22, 2011, 8:31 PM EDT (00:31 UTC)
Expired
Jun 22, 2011, 8:50 PM EDT
In force
19 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon

Counties Crawford County, MI, Roscommon County, MI

The radar

The NCL Michigan radar (KAPX), 46 km from the middle of the area, began a volume at 00:35 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 00:00Z, 0.5 hours before the alert went out and 186 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-pSkew-T log-p diagram, Alpena, MI at 00:00Z on 2011-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 204 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 00:00Z on 2011-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
204 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

759 
WFUS53 KAPX 230031
TORAPX
MIC039-143-230100-
/O.NEW.KAPX.TO.W.0002.110623T0031Z-110623T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
831 PM EDT WED JUN 22 2011

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CRAWFORD COUNTY IN NORTHERN LOWER MICHIGAN...
  NORTH CENTRAL ROSCOMMON COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 900 PM EDT

* AT 825 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO OVER THE
  EASTERN PORTION OF HOUGHTON LAKE...7 MILES SOUTHWEST OF ROSCOMMON.
  DOPPLER RADAR SHOWED THIS TORNADO MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROSCOMMON AND SOUTH BRANCH TOWNSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS REPORTED ON THE GROUND. TAKE COVER NOW. MOVE 
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID 
WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE 
CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4457 8465 4457 8438 4439 8459 4442 8480
TIME...MOT...LOC 0030Z 220DEG 21KT 4445 8465

$$
1 follow-up statement
218 
WWUS34 KAPX 230050
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
850 PM EDT WED JUN 22 2011

MIC039-143-230100-
/O.CAN.KAPX.TO.W.0002.000000T0000Z-110623T0100Z/
CRAWFORD MI-ROSCOMMON MI-
850 PM EDT WED JUN 22 2011

...THE TORNADO WARNING FOR NORTH CENTRAL ROSCOMMON AND SOUTHEASTERN
CRAWFORD COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED...AND NO 
LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

TO REPORT SEVERE WEATHER DAMAGE...CONTACT YOUR NEAREST LAW ENFORCEMENT 
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
IN GAYLORD.

LAT...LON 4457 8465 4457 8438 4439 8459 4442 8480
TIME...MOT...LOC 0050Z 220DEG 21KT 4454 8454
WIND...HAIL <50MPH <.50IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 8:32 PM EDTDense Fog AdvisoryAPXCheboygan, Emmet, Presque Isle7 hr
Jun 22, 8:46 PM EDTMarine Dense Fog AdvisoryAPX21 hr

Nearby

Tornado Warnings in Michigan, 2011Every tornado warning in 2011Tornadoes in 2011

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.