Alert archive / Michigan / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 49, NWS Gaylord, MI

September 2, 2015Arenac County, Gladwin County, Ogemaw County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 2, 2015, 7:40 PM EDT for Arenac County, Gladwin County, Ogemaw County, Michigan. It was in force for 65 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
Sep 2, 2015, 7:40 PM EDT (23:40 UTC)
Expired
Sep 2, 2015, 8:45 PM EDT
In force
65 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Arenac County, MI, Gladwin County, MI, Ogemaw County, MI

The radar

The NCL Michigan radar (KAPX), 118 km from the middle of the area, began a volume at 23:41 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

Detroit, MI (KDTX), launched 12:00Z, 11.7 hours before the alert went out and 147 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 2015-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1694 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 2015-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
1694 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
886 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
20 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.

186 
WUUS53 KAPX 022340
SVRAPX
MIC011-051-129-030045-
/O.NEW.KAPX.SV.W.0049.150902T2340Z-150903T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
740 PM EDT WED SEP 2 2015

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GLADWIN COUNTY IN NORTHERN MICHIGAN...
  SOUTHWESTERN OGEMAW COUNTY IN NORTHERN MICHIGAN...
  ARENAC COUNTY IN NORTHERN MICHIGAN...

* UNTIL 845 PM EDT

* AT 738 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  BOWMANVILLE...OR NEAR ALGER...MOVING SOUTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. HISTORY OF STRONG WINDS WITH THIS STORM 
  WITH THE ROSCOMMON COUNTY AIRPORT MEASURING A 58 MPH WIND GUST.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  ALGER...STANDISH...AU GRES...STERLING...OMER...WINEGARS...
  BOWMANVILLE...RHODES...WOODEN SHOE VILLAGE AND SKIDWAY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4382 8448 4403 8444 4425 8426 4404 8368
      4402 8367 4403 8368 4399 8368 4400 8374
      4399 8374 4398 8380 4400 8383 4391 8391
      4391 8404 4400 8405 4400 8417 4383 8417
TIME...MOT...LOC 2338Z 302DEG 25KT 4413 8422 

HAIL...<.75IN
WIND...60MPH
 
$$

AJS
2 follow-up statements
950 
WWUS53 KAPX 030013
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
813 PM EDT WED SEP 2 2015

MIC129-030022-
/O.CAN.KAPX.SV.W.0049.000000T0000Z-150903T0045Z/
OGEMAW MI-
813 PM EDT WED SEP 2 2015

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN OGEMAW COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4382 8448 4403 8444 4416 8433 4417 8402
      4404 8368 4399 8368 4400 8374 4399 8374
      4398 8379 4400 8383 4391 8391 4391 8404
      4400 8405 4400 8417 4383 8417
TIME...MOT...LOC 0012Z 302DEG 25KT 4400 8394 

$$

MIC011-051-030045-
/O.CON.KAPX.SV.W.0049.000000T0000Z-150903T0045Z/
GLADWIN MI-ARENAC MI-
813 PM EDT WED SEP 2 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR EASTERN GLADWIN AND ARENAC COUNTIES...

AT 812 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER STANDISH...
MOVING SOUTHEAST AT 30 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

LOCATIONS IMPACTED INCLUDE...
ALGER...STANDISH...AU GRES...STERLING...OMER...WINEGARS...RHODES...
BOWMANVILLE...WOODEN SHOE VILLAGE AND SKIDWAY LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4382 8448 4403 8444 4416 8433 4417 8402
      4404 8368 4399 8368 4400 8374 4399 8374
      4398 8379 4400 8383 4391 8391 4391 8404
      4400 8405 4400 8417 4383 8417
TIME...MOT...LOC 0012Z 302DEG 25KT 4400 8394 

HAIL...<.75IN
WIND...60MPH
 
$$

AJS
568 
WWUS53 KAPX 030042
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
842 PM EDT WED SEP 2 2015

MIC011-051-030052-
/O.EXP.KAPX.SV.W.0049.000000T0000Z-150903T0045Z/
GLADWIN MI-ARENAC MI-
842 PM EDT WED SEP 2 2015

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GLADWIN AND ARENAC
COUNTIES WILL EXPIRE AT 845 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4382 8448 4403 8444 4416 8433 4417 8402
      4404 8368 4399 8368 4400 8374 4399 8374
      4398 8379 4400 8383 4391 8391 4391 8404
      4400 8405 4400 8417 4383 8417
TIME...MOT...LOC 0038Z 302DEG 25KT 4400 8394 

$$

AJS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 2:35 PM EDTSpecial Weather StatementAPXMontmorency55 min
Sep 2, 3:33 PM EDTSpecial Marine WarningAPX57 min
Sep 2, 4:12 PM EDTSpecial Marine WarningAPX63 min
Sep 2, 4:36 PM EDTSpecial Weather StatementAPXEmmet54 min
Sep 2, 4:37 PM EDTSevere Thunderstorm WarningAPXAlcona, Iosco23 min
Sep 2, 4:41 PM EDTSpecial Marine WarningAPX49 min
Sep 2, 5:22 PM EDTFlash Flood WarningAPXAlpena, Montmorency3 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2015Every severe thunderstorm warning in 2015

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.