Alert archive / Michigan / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 28, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at May 31, 2011, 7:25 PM EDT for Bay County, Midland County, Saginaw County, Michigan. It was in force for 65 min. 2 reports 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, 7:25 PM EDT (23:25 UTC)
- Expired
- May 31, 2011, 8:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 70.0 mph
Counties Bay County, MI, Midland County, MI, Saginaw County, MI
The radar
The Detroit radar (KDTX), 110 km from the middle of the area, began a volume at 23:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 31, 7:30 PM EDT | TSTM WND DMG | 6 N Auburn, MI | TREES DOWN, POWER LINES DOWN, HOMES WITH WALLS BLOWN IN AT THE INTERSECTION OF GARFIELD AND SEIDLERS RD IN BEAVER TOWNSHIP |
| May 31, 7:30 PM EDT | HAIL 1 | Midland, MI | HAIL WENT THROUGH A TWO PANE GLASS SKYLIGHT |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 31, 3:33 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 11.4 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 1647 J/kg
- Mixed-layer CIN
- -247 J/kg
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -82 m²/s²
- 0-3 km storm-relative helicity
- -60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
728
WUUS53 KDTX 312325
SVRDTX
MIC017-111-145-010030-
/O.NEW.KDTX.SV.W.0028.110531T2325Z-110601T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
725 PM EDT TUE MAY 31 2011
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN BAY COUNTY IN SOUTHEAST MICHIGAN...
SOUTHERN MIDLAND COUNTY IN SOUTHEAST MICHIGAN...
NORTHERN SAGINAW COUNTY IN SOUTHEAST MICHIGAN...
* UNTIL 830 PM EDT
* AT 724 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTHEAST
OF SANFORD TO 5 MILES EAST OF ITHACA...AND MOVING NORTHEAST AT 50
MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MARION SPRINGS AROUND 730 PM EDT.
BRANT AND POSEYVILLE AROUND 735 PM EDT.
ST. CHARLES AND NELSON AROUND 740 PM EDT.
GARFIELD AND LAPORTE AROUND 745 PM EDT.
SWAN CREEK AND SHIAWASSEE NATIONAL WILDLIFE REFUGE AROUND 750 PM
EDT.
SAGINAW AND FREELAND AROUND 755 PM EDT.
THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
ZILWAUKEE... ST. CHARLES... SAGINAW...
MUNGER... MIDLAND... MERRILL...
MARION SPRINGS... KAWKAWLIN... FREELAND...
ESSEXVILLE... BRIDGEPORT... BAY CITY...
AUBURN...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.
&&
LAT...LON 4359 8448 4367 8440 4362 8434 4375 8394
4367 8389 4364 8376 4360 8370 4335 8370
4323 8437 4346 8438 4347 8453
TIME...MOT...LOC 2325Z 231DEG 44KT 4361 8432 4329 8449
WIND...HAIL 70MPH 1.50IN
$$
SC/SF3 follow-up statements
950
WWUS53 KDTX 312349
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
749 PM EDT TUE MAY 31 2011
MIC111-312358-
/O.CAN.KDTX.SV.W.0028.000000T0000Z-110601T0030Z/
MIDLAND MI-
749 PM EDT TUE MAY 31 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MIDLAND COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.
LAT...LON 4348 8417 4368 8416 4375 8395 4367 8389
4363 8375 4360 8370 4335 8370 4323 8437
4348 8437
TIME...MOT...LOC 2348Z 246DEG 49KT 4343 8408
$$
MIC017-145-010030-
/O.CON.KDTX.SV.W.0028.000000T0000Z-110601T0030Z/
BAY MI-SAGINAW MI-
749 PM EDT TUE MAY 31 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SAGINAW AND SOUTHERN BAY COUNTIES UNTIL 830 PM EDT...
AT 744 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 7 MILES
NORTH OF ST. CHARLES...MOVING NORTHEAST AT 55 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
ZILWAUKEE AND CARROLLTON AROUND 755 PM EDT.
INDIANTOWN AND BAY CITY AROUND 800 PM EDT.
MUNGER AND ARTHUR AROUND 805 PM EDT.
THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
ZILWAUKEE... ST. CHARLES... SAGINAW...
MUNGER... MERRILL... MARION SPRINGS...
KAWKAWLIN... FREELAND... ESSEXVILLE...
BRIDGEPORT... BAY CITY... AUBURN...
A SECOND STORM WAS LOCATED JUST NORTH OF AUBURN IN BAY
COUNTY...MOVING NORTHEAST AT 50 MPH. THIS STORM WILL BE NEAR
KAWKAWLIN BY 8 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.
&&
LAT...LON 4348 8417 4368 8416 4375 8395 4367 8389
4363 8375 4360 8370 4335 8370 4323 8437
4348 8437
TIME...MOT...LOC 2348Z 246DEG 49KT 4343 8408
WIND...HAIL 60MPH 1.00IN
$$
SC/SF266
WWUS53 KDTX 010006
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
806 PM EDT TUE MAY 31 2011
MIC017-145-010030-
/O.CON.KDTX.SV.W.0028.000000T0000Z-110601T0030Z/
BAY MI-SAGINAW MI-
806 PM EDT TUE MAY 31 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
SAGINAW AND SOUTHERN BAY COUNTIES UNTIL 830 PM EDT...
AT 800 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
ZILWAUKEE...OR 6 MILES NORTH OF SAGINAW...MOVING NORTHEAST AT 55 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
MUNGER AND ESSEXVILLE AROUND 810 PM EDT.
THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
ZILWAUKEE... ST. CHARLES... SAGINAW...
MUNGER... MERRILL... MARION SPRINGS...
KAWKAWLIN... FREELAND... ESSEXVILLE...
BRIDGEPORT... BAY CITY... AUBURN...
A SECOND STORM WAS APPROACHING MARION SPRINGS IN SAGINAW COUNTY FROM
THE WEST AT 800 PM. THIS STORM WILL TRACK NORTHEAST AT 50 MPH AND
WILL BE NEAR BRANT BY 820 PM.
LAT...LON 4348 8437 4348 8417 4359 8416 4373 8397
4367 8389 4367 8388 4365 8386 4365 8383
4363 8375 4360 8370 4335 8370 4323 8437
TIME...MOT...LOC 0005Z 243DEG 46KT 4353 8384
WIND...HAIL 60MPH 1.00IN
$$
SC/SF714
WWUS53 KDTX 010027
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
827 PM EDT TUE MAY 31 2011
MIC017-145-010038-
/O.EXP.KDTX.SV.W.0028.000000T0000Z-110601T0030Z/
BAY MI-SAGINAW MI-
827 PM EDT TUE MAY 31 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SAGINAW AND SOUTHERN
BAY COUNTIES WILL EXPIRE AT 830 PM EDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE
WITH THESE THUNDERSTORMS.
LAT...LON 4348 8437 4348 8417 4359 8416 4373 8397
4367 8389 4367 8388 4365 8386 4365 8383
4363 8375 4360 8370 4335 8370 4323 8437
TIME...MOT...LOC 0028Z 243DEG 46KT 4366 8348
$$
SC/SFThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 4:15 AM EDT | Heat Advisory | DTX | Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more | 16 hr |
| May 31, 6:24 PM EDT | Severe Thunderstorm Warning | DTX | Bay, Midland | 66 min |
| May 31, 6:33 PM EDT | Tornado Warning | DTX | Midland | 57 min |
| May 31, 6:38 PM EDT | Special Marine Warning | DTX | 112 min | |
| May 31, 7:06 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Shiawassee | 33 min |
| May 31, 7:10 PM EDT | Tornado Warning | DTX | Bay, Midland | 35 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.