Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Northern Indiana

July 7, 2021Berrien County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at Jul 7, 2021, 2:31 PM EDT for Berrien County, Michigan. It was in force for 32 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 7, 2021, 2:31 PM EDT (18:31 UTC)
Expired
Jul 7, 2021, 3:03 PM EDT
In force
32 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Berrien County, MI

The radar

The Northern Indiana radar (KIWX), 91 km from the middle of the area, began a volume at 18:35 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

Lincoln, IL (KILX), launched 12:00Z, 6.5 hours before the alert went out and 257 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, Lincoln, IL at 12:00Z on 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 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, Lincoln, IL at 12:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
142 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1432 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

509 
WUUS53 KIWX 071831
SVRIWX
MIC021-071915-
/O.NEW.KIWX.SV.W.0052.210707T1831Z-210707T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Northern Indiana
231 PM EDT Wed Jul 7 2021

The National Weather Service in Northern Indiana has issued a

* Severe Thunderstorm Warning for...
  Southeastern Berrien County in southwestern Michigan...

* Until 315 PM EDT.

* At 230 PM EDT, a severe thunderstorm was located near Three Oaks,
  or 13 miles northeast of Trail Creek, moving northeast at 25 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Buchanan, Bridgman, New Buffalo, Three Oaks, Stevensville,
  Shorewood-Tower Hill, Shorewood-Tower Hills-Harbert, Baroda,
  Galien, Union Pier, Glendora, New Troy, Harbert, Sawyer, Turner
  Shores and Lakeside In Berrien County.

This includes Interstate 94 in Michigan between mile markers 0 and
25.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Northern Indiana.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4185 8626 4176 8664 4176 8676 4185 8674
      4192 8666 4194 8665 4206 8649
TIME...MOT...LOC 1830Z 234DEG 21KT 4183 8666 

HAIL...0.75IN
WIND...60MPH
 
$$

CM
2 follow-up statements
974 
WWUS53 KIWX 071849
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
249 PM EDT Wed Jul 7 2021

MIC021-071915-
/O.CON.KIWX.SV.W.0052.000000T0000Z-210707T1915Z/
Berrien MI-
249 PM EDT Wed Jul 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR SOUTHEASTERN BERRIEN COUNTY...

At 248 PM EDT, a severe thunderstorm was located near Bridgman, or 10
miles northwest of Buchanan, moving northeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Buchanan, Bridgman, Stevensville, Shorewood-Tower Hills-Harbert,
Baroda, Galien, Glendora, New Troy and Sawyer.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Northern Indiana.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4185 8626 4178 8656 4189 8662 4197 8661
      4206 8649
TIME...MOT...LOC 1848Z 234DEG 21KT 4189 8654 

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

CM
368 
WWUS53 KIWX 071903
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
303 PM EDT Wed Jul 7 2021

MIC021-071912-
/O.CAN.KIWX.SV.W.0052.000000T0000Z-210707T1915Z/
Berrien MI-
303 PM EDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BERRIEN COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Northern Indiana.

LAT...LON 4185 8626 4178 8656 4189 8662 4197 8661
      4206 8649
TIME...MOT...LOC 1859Z 234DEG 21KT 4194 8645 

$$

CM

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 1:10 PM EDTAreal Flood AdvisoryIWXHillsdale3 hr
Jul 7, 1:15 PM EDTSpecial Weather StatementIWXHillsdale30 min
Jul 7, 1:49 PM EDTSpecial Weather StatementIWXBerrien26 min
Jul 7, 2:23 PM EDTSpecial Weather StatementIWXBerrien37 min
Jul 7, 3:02 PM EDTSpecial Weather StatementIWXCass43 min
Jul 7, 3:27 PM EDTSpecial Weather StatementIWXSaint Joseph33 min
Jul 7, 3:57 PM EDTSpecial Weather StatementIWXSaint Joseph33 min
Jul 7, 4:16 PM EDTAreal Flood AdvisoryIWXBranch, Cass, Saint Joseph3 hr

Nearby

Severe Thunderstorm Warnings in Michigan, 2021Every severe thunderstorm warning in 2021

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.