Alert archive / Michigan / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 80, NWS Gaylord, MI

September 2, 2011Benzie County, Manistee County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 2, 2011, 12:18 PM EDT for Benzie County, Manistee County, Michigan. It was in force for 42 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
Sep 2, 2011, 12:18 PM EDT (16:18 UTC)
Expired
Sep 2, 2011, 1:00 PM EDT
In force
42 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
0.5 in
Wind
60.0 mph

Counties Benzie County, MI, Manistee County, MI

The radar

The NCL Michigan radar (KAPX), 130 km from the middle of the area, began a volume at 16:20 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
Sep 2, 12:43 PM EDTTSTM WND DMGManistee, MITREES AND POWER LINES DOWN IN MANISTEE

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
Sep 2, 12:09 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 4.3 hours before the alert went out and 149 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 2011-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2366 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, Green Bay/Straub, WI at 12:00Z on 2011-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
2366 J/kg
Mixed-layer CIN
-254 J/kg
Mixed-layer LCL
999 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
21 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.

584 
WUUS53 KAPX 021618
SVRAPX
MIC019-101-021700-
/O.NEW.KAPX.SV.W.0080.110902T1618Z-110902T1700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
1218 PM EDT FRI SEP 2 2011

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENZIE COUNTY IN NORTHERN LOWER MICHIGAN...
  MANISTEE COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 100 PM EDT

* AT 1215 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM ARCADIA TO CUSTER...AND MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BEULAH...THOMPSONVILLE...BENZONIA...BRETHREN...KALEVA...HONOR...
  WELLSTON...DUBLIN...COPEMISH...BLAINE TOWNSHIP...STAR CROSSING...
  PERE MARQUETTE STATE FOREST AND WALLIN.

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 4424 8636 4435 8628 4441 8626 4447 8627
      4459 8623 4465 8627 4469 8627 4472 8586
      4416 8585 4417 8639
TIME...MOT...LOC 1618Z 248DEG 39KT 4449 8619 4399 8618
WIND...HAIL 60MPH <.50IN

$$
2 follow-up statements
082 
WWUS34 KAPX 021652
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1252 PM EDT FRI SEP 2 2011

MIC019-101-021700-
/O.CON.KAPX.SV.W.0080.000000T0000Z-110902T1700Z/
BENZIE MI-MANISTEE MI-
1252 PM EDT FRI SEP 2 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR MANISTEE AND
BENZIE COUNTIES UNTIL 100 PM EDT...

AT 1247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM INTERLOCHEN STATE PARK TO 6 MILES SOUTHWEST OF HOXEYVILLE...
MOVING NORTHEAST AT 45 MPH.

WIND DAMAGE WAS REPORTED AROUND MANISTEE EARLIER WITH THESE STORMS.  
IN ADDITION...A 57 MPH WIND GUST WAS REPORTED AT 1220 PM AT THE 
MANISTEE BREAKWATER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE ACROSS MANISTEE 
COUNTY. THIS IS A DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A 
STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 4424 8636 4435 8628 4441 8626 4447 8627
      4459 8623 4465 8627 4469 8627 4472 8586
      4416 8585 4417 8639
TIME...MOT...LOC 1652Z 237DEG 42KT 4463 8574 4413 8574
WIND...HAIL 60MPH <.50IN

$$


AJS/JPB
351 
WWUS34 KAPX 021700
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
100 PM EDT FRI SEP 2 2011

MIC019-101-021710-
/O.EXP.KAPX.SV.W.0080.000000T0000Z-110902T1700Z/
BENZIE MI-MANISTEE MI-
100 PM EDT FRI SEP 2 2011

...THE SEVERE THUNDERSTORM WARNING FOR MANISTEE AND BENZIE COUNTIES
HAS EXPIRED...

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

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM.

LAT...LON 4424 8636 4435 8628 4441 8626 4447 8627
      4459 8623 4465 8627 4469 8627 4472 8586
      4416 8585 4417 8639
TIME...MOT...LOC 1652Z 237DEG 42KT 4463 8573 4413 8574
WIND...HAIL <50MPH <.50IN

$$


AJS/JPB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 3:35 AM EDTSmall Craft AdvisoryAPX13 hr
Sep 2, 12:06 PM EDTSpecial Marine WarningAPX64 min
Sep 2, 12:39 PM EDTSevere Thunderstorm WarningAPXGrand Traverse, Kalkaska, Missaukee, Wexford66 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.