Alert archive / Michigan / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 21, NWS Marquette, MI

May 31, 2011Alger County, Delta County, Marquette County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at May 31, 2011, 4:12 PM EDT for Alger County, Delta County, Marquette County, Michigan. It was in force for 48 min. 1 report 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
May 31, 2011, 4:12 PM EDT (20:12 UTC)
Expired
May 31, 2011, 5:00 PM EDT
In force
48 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Alger County, MI, Delta County, MI, Marquette County, MI

The radar

The Marquette radar (KMQT), 60 km from the middle of the area, began a volume at 20:14 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

TimeReportWhereRemark
May 31, 4:45 PM EDTTSTM WND DMG1 Ssw Au Train, MINUMEROUS 100 FT WHITE PINE TREES DOWN ALONG N. SHORE ROAD NEAR AU TRAIN LAKE. ONE TREE FELL OVER A POWERLINE. A TELEPHONE POLE WAS SNAPPED IN HALF.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
May 31, 1:56 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.2 hours before the alert went out and 238 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, Green Bay/Straub, WI at 12:00Z on 2011-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1066 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2011-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
1066 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
958 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
197 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.

570 
WUUS53 KMQT 312012
SVRMQT
MIC003-041-103-312100-
/O.NEW.KMQT.SV.W.0021.110531T2012Z-110531T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MARQUETTE MI
412 PM EDT TUE MAY 31 2011

THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN ALGER COUNTY IN NORTH CENTRAL UPPER MICHIGAN...
  WESTERN DELTA COUNTY IN SOUTH CENTRAL UPPER MICHIGAN...
  SOUTHEASTERN MARQUETTE COUNTY IN NORTH CENTRAL UPPER MICHIGAN...

* UNTIL 500 PM EDT

* AT 409 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST OF ROCK TO 5
  MILES WEST OF ROCK TO 5 MILES SOUTHEAST OF WATSON...AND MOVING
  NORTHEAST AT 70 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MUNISING...ROCK...TRENARY...CHATHAM...AU TRAIN...LATHROP...ST.
  NICHOLAS...MCFARLAND...KIVA...SUNDELL...DIFFIN...EBEN JUNCTION...
  TRAUNIK...FOREST LAKE...WETMORE...CHRISTMAS...MELSTRAND...GRAND
  PORTAL POINT...BEAVER LAKE AND KINGSTON LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4590 8734 4590 8735 4616 8734 4652 8697
      4648 8693 4649 8689 4644 8683 4649 8680
      4650 8670 4651 8672 4650 8675 4655 8672
      4657 8665 4648 8658 4657 8647 4659 8633
      4668 8618 4666 8610
TIME...MOT...LOC 2012Z 218DEG 61KT 4616 8723 4610 8723
          4600 8729
WIND...HAIL 60MPH 1.00IN

$$

VOSS
2 follow-up statements
820 
WWUS53 KMQT 312027
SVSMQT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MARQUETTE MI
327 PM CDT TUE MAY 31 2011

MIC003-041-103-312100-
/O.CON.KMQT.SV.W.0021.000000T0000Z-110531T2100Z/
ALGER MI-MARQUETTE MI-DELTA MI-
427 PM EDT TUE MAY 31 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DELTA...SOUTHEASTERN MARQUETTE AND WESTERN ALGER COUNTIES UNTIL 500
PM EDT...

AT 423 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 9 MILES NORTHWEST OF TRENARY TO 5
MILES NORTHWEST OF TRENARY TO 6 MILES WEST OF TRENARY...MOVING
NORTHEAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
  MUNISING...CHATHAM...AU TRAIN...EBEN JUNCTION...TRAUNIK...FOREST
  LAKE...WETMORE...CHRISTMAS...GRAND PORTAL POINT AND BEAVER LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4590 8734 4590 8735 4616 8734 4652 8697
      4648 8693 4649 8689 4644 8683 4649 8680
      4650 8670 4651 8672 4650 8675 4655 8672
      4657 8665 4648 8658 4657 8647 4659 8633
      4668 8618 4666 8610
TIME...MOT...LOC 2027Z 218DEG 61KT 4633 8705 4630 8700
          4624 8704
WIND...HAIL 70MPH 1.00IN

$$

VOSS
606 
WWUS53 KMQT 312051
SVSMQT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MARQUETTE MI
351 PM CDT TUE MAY 31 2011

MIC041-103-312101-
/O.CAN.KMQT.SV.W.0021.000000T0000Z-110531T2100Z/
MARQUETTE MI-DELTA MI-
451 PM EDT TUE MAY 31 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DELTA AND
SOUTHEASTERN MARQUETTE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED AND 
MOVED OUT OF THE WARNED AREA.

LAT...LON 4666 8610 4616 8693 4616 8712 4638 8712
      4652 8697 4648 8693 4649 8689 4644 8683
      4649 8680 4650 8670 4650 8675 4655 8672
      4657 8665 4648 8658 4657 8647 4659 8633
      4668 8618
TIME...MOT...LOC 2051Z 231DEG 48KT 4652 8673 4648 8668
          4645 8667

$$

MIC003-312100-
/O.CON.KMQT.SV.W.0021.000000T0000Z-110531T2100Z/
ALGER MI-
451 PM EDT TUE MAY 31 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN ALGER
COUNTY UNTIL 500 PM EDT...

AT 447 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM AU TRAIN TO MUNISING...MOVING
NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  GRAND PORTAL POINT AND BEAVER LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4666 8610 4616 8693 4616 8712 4638 8712
      4652 8697 4648 8693 4649 8689 4644 8683
      4649 8680 4650 8670 4650 8675 4655 8672
      4657 8665 4648 8658 4657 8647 4659 8633
      4668 8618
TIME...MOT...LOC 2051Z 231DEG 48KT 4652 8673 4648 8668
          4645 8667
WIND...HAIL 70MPH 1.00IN

$$

VOSS

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 10:22 PM EDTLakeshore Flood AdvisoryMQTAlger, Baraga, Houghton, Keweenaw, Luce, Marquette10 hr
May 30, 11:10 PM EDTMarine Dense Fog AdvisoryMQT15 hr
May 31, 4:58 AM EDTHigh Wind WatchMQTHoughton, Keweenaw, Ontonagon7 hr
May 31, 11:25 AM EDTGale WarningMQT33 hr
May 31, 12:02 PM EDTHigh Wind WarningMQTHoughton, Keweenaw, Ontonagon32 hr
May 31, 12:42 PM EDTSpecial Marine WarningMQT93 min
May 31, 12:54 PM EDTSpecial Marine WarningMQT96 min
May 31, 2:46 PM EDTSevere Thunderstorm WarningMQTBaraga, Houghton, Iron, Marquette45 min
May 31, 2:47 PM EDTSpecial Marine WarningMQT88 min
May 31, 2:52 PM EDTSpecial Marine WarningMQT53 min
May 31, 3:33 PM EDTSpecial Marine WarningMQT42 min
May 31, 3:47 PM EDTSevere Thunderstorm WarningMQTMarquette43 min
May 31, 4:22 PM EDTWind AdvisoryMQTAlger, Baraga, Delta, Dickinson, Gogebic, Houghton and 5 more25 hr
May 31, 4:35 PM EDTSpecial Marine WarningMQT55 min
May 31, 4:41 PM EDTSpecial Marine WarningMQT94 min
May 31, 5:08 PM EDTSevere Thunderstorm WarningMQTAlger52 min
May 31, 5:23 PM EDTSpecial Marine WarningMQT22 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.