Alert archive / Michigan / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 65, NWS Gaylord, MI

July 2, 2011Gladwin County, Ogemaw County, Roscommon County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 2, 2011, 2:28 PM EDT for Gladwin County, Ogemaw County, Roscommon County, Michigan. It was in force for 62 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
Jul 2, 2011, 2:28 PM EDT (18:28 UTC)
Expired
Jul 2, 2011, 3:30 PM EDT
In force
62 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
1.75 in
Wind
70.0 mph

Counties Gladwin County, MI, Ogemaw County, MI, Roscommon County, MI

The radar

The NCL Michigan radar (KAPX), 102 km from the middle of the area, began a volume at 18:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 2, 2:24 PM EDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 6.5 hours before the alert went out and 165 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, Detroit, MI at 12:00Z on 2011-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3122 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, Detroit, MI at 12:00Z on 2011-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939Sfc1 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
3122 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

073 
WUUS53 KAPX 021828
SVRAPX
MIC051-129-143-021930-
/O.NEW.KAPX.SV.W.0065.110702T1828Z-110702T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
228 PM EDT SAT JUL 2 2011

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GLADWIN COUNTY IN NORTHERN LOWER MICHIGAN...
  SOUTHWESTERN OGEMAW COUNTY IN NORTHERN LOWER MICHIGAN...
  SOUTHEASTERN ROSCOMMON COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 330 PM EDT

* AT 228 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
  HARRISON...OR 12 MILES NORTH OF CLARE...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GLADWIN...SKEELS...BEAVERTON...WINEGARS...HOCKADAY...WOODEN SHOE
  VILLAGE...BOWMANVILLE AND RHODES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4415 8462 4416 8467 4426 8421 4398 8415
      4383 8416 4382 8417 4382 8462
TIME...MOT...LOC 1828Z 255DEG 23KT 4400 8470
WIND...HAIL 70MPH 1.75IN

$$
3 follow-up statements
486 
WWUS34 KAPX 021857
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
257 PM EDT SAT JUL 2 2011

MIC051-129-143-021930-
/O.CON.KAPX.SV.W.0065.000000T0000Z-110702T1930Z/
GLADWIN MI-OGEMAW MI-ROSCOMMON MI-
257 PM EDT SAT JUL 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
ROSCOMMON...SOUTHWESTERN OGEMAW AND GLADWIN COUNTIES UNTIL 330 PM
EDT...

AT 257 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED NEAR
GLADWIN...MOVING EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  WINEGARS...WOODEN SHOE VILLAGE...BOWMANVILLE AND RHODES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4415 8462 4416 8467 4426 8421 4398 8415
      4383 8416 4382 8417 4382 8462
TIME...MOT...LOC 1857Z 266DEG 26KT 4399 8441
WIND...HAIL 70MPH 1.75IN

$$
104 
WWUS34 KAPX 021919
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
319 PM EDT SAT JUL 2 2011

MIC129-143-021929-
/O.CAN.KAPX.SV.W.0065.000000T0000Z-110702T1930Z/
OGEMAW MI-ROSCOMMON MI-
319 PM EDT SAT JUL 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ROSCOMMON AND
SOUTHWESTERN OGEMAW COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4410 8450 4414 8419 4399 8416 4383 8416
      4382 8417 4382 8451
TIME...MOT...LOC 1919Z 269DEG 26KT 4398 8418
WIND...HAIL <50MPH <.50IN

$$

MIC051-021930-
/O.CON.KAPX.SV.W.0065.000000T0000Z-110702T1930Z/
GLADWIN MI-
319 PM EDT SAT JUL 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR GLADWIN COUNTY
UNTIL 330 PM EDT...

AT 317 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
NORTH OF RHODES...OR 10 MILES WEST OF STERLING...MOVING EAST AT 30
MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME EASTERN GLADWIN COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4410 8450 4414 8419 4399 8416 4383 8416
      4382 8417 4382 8451
TIME...MOT...LOC 1919Z 269DEG 26KT 4398 8418
WIND...HAIL 60MPH 1.00IN

$$
167 
WWUS34 KAPX 021933
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
333 PM EDT SAT JUL 2 2011

MIC051-021942-
/O.EXP.KAPX.SV.W.0065.000000T0000Z-110702T1930Z/
GLADWIN MI-
333 PM EDT SAT JUL 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR GLADWIN COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM EDT.

LAT...LON 4410 8450 4414 8419 4399 8416 4383 8416
      4382 8417 4382 8451
TIME...MOT...LOC 1919Z 269DEG 26KT 4398 8418
WIND...HAIL <50MPH <.50IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 4:17 PM EDTSevere Thunderstorm WarningAPXArenac, Gladwin36 min
Jul 2, 4:49 PM EDTSevere Thunderstorm WarningAPXArenac, Iosco, Ogemaw39 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2011Every severe thunderstorm warning 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.