Alert archive / Michigan / Tornado Warnings in 2026

Tornado Warning 20, NWS Northern Indiana

April 2, 2026Cass County, Saint Joseph County, Michigan

NWS Northern Indiana issued this tornado warning at Apr 2, 2026, 6:40 PM EDT for Cass County, Saint Joseph County, Michigan. It was in force for 35 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
Apr 2, 2026, 6:40 PM EDT (22:40 UTC)
Expired
Apr 2, 2026, 7:15 PM EDT
In force
35 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Cass County, MI, Saint Joseph County, MI

The radar

The Northern Indiana radar (KIWX), 68 km from the middle of the area, began a volume at 22:41 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 2, 6:28 PM EDTTornado WatchSPC3 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.7 hours before the alert went out and 219 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 2026-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLEL10008507005003002001001 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, Detroit, MI at 12:00Z on 2026-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 434 square meters per square second.19395878Sfc1 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
15 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
392 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
434 m²/s²
0-3 km storm-relative helicity
496 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

130 
WFUS53 KIWX 022240
TORIWX
MIC027-149-022315-
/O.NEW.KIWX.TO.W.0020.260402T2240Z-260402T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Northern Indiana
640 PM EDT Thu Apr 2 2026

The National Weather Service in Northern Indiana has issued a

* Tornado Warning for...
  Central Cass County in southwestern Michigan...
  Northwestern St. Joseph County in southwestern Michigan...

* Until 715 PM EDT.

* At 640 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Edwardsburg, or 7 miles northwest of Simonton
  Lake, moving northeast at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Cassopolis around 645 PM EDT.
  Marcellus around 655 PM EDT.

Other locations impacted by this tornadic thunderstorm include Penn,
Vandalia, Diamond Lake, Dailey, Howardsville, Flowerfield, Paradise
Lake, Donnell Lake, Wakelee, and Eagle Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4207 8561 4176 8609 4180 8617 4207 8593
TIME...MOT...LOC 2240Z 222DEG 42KT 4185 8604 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MARSILI
4 follow-up statements
521 
WWUS53 KIWX 022248
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
648 PM EDT Thu Apr 2 2026

MIC027-149-022315-
/O.CON.KIWX.TO.W.0020.000000T0000Z-260402T2315Z/
Cass MI-St. Joseph MI-
648 PM EDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR
NORTHEASTERN CASS AND NORTHWESTERN ST. JOSEPH COUNTIES...

At 647 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Cassopolis, or 9 miles southeast of Dowagiac, moving
northeast at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Marcellus around 655 PM EDT.

Other locations impacted by this tornadic thunderstorm include Penn,
Vandalia, Diamond Lake, Howardsville, Flowerfield, Paradise Lake,
Donnell Lake, and Wakelee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4184 8597 4187 8604 4207 8593 4207 8561
TIME...MOT...LOC 2247Z 222DEG 42KT 4192 8596 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MARSILI
223 
WWUS53 KIWX 022256
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
656 PM EDT Thu Apr 2 2026

MIC027-149-022315-
/O.CON.KIWX.TO.W.0020.000000T0000Z-260402T2315Z/
Cass MI-St. Joseph MI-
656 PM EDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR
NORTHEASTERN CASS AND NORTHWESTERN ST. JOSEPH COUNTIES...

At 655 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Marcellus, or 11 miles west of Three Rivers, moving
northeast at 50 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Marcellus around 700 PM EDT.

Other locations impacted by this tornadic thunderstorm include Penn,
Howardsville, Flowerfield, and Wakelee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4191 8586 4194 8595 4207 8590 4207 8561
TIME...MOT...LOC 2255Z 222DEG 42KT 4198 8585 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MARSILI
004 
WWUS53 KIWX 022308
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
708 PM EDT Thu Apr 2 2026

MIC027-149-022315-
/O.CON.KIWX.TO.W.0020.000000T0000Z-260402T2315Z/
Cass MI-St. Joseph MI-
708 PM EDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR
NORTHEASTERN CASS AND NORTHWESTERN ST. JOSEPH COUNTIES...

At 708 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Marcellus, or 9 miles northwest of Three Rivers,
moving northeast at 45 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northeastern Cass and northwestern St. Joseph Counties, including the
following locations... Howardsville and Flowerfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4198 8576 4202 8582 4207 8581 4207 8561
TIME...MOT...LOC 2308Z 220DEG 31KT 4206 8572 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

MARSILI
055 
WWUS53 KIWX 022313 RRA
SVSIWX

Severe Weather Statement
National Weather Service Northern Indiana
713 PM EDT Thu Apr 2 2026

MIC027-149-022323-
/O.EXP.KIWX.TO.W.0020.000000T0000Z-260402T2315Z/
Cass MI-St. Joseph MI-
713 PM EDT Thu Apr 2 2026

...THE TORNADO WARNING FOR NORTHEASTERN CASS AND NORTHWESTERN ST.
JOSEPH COUNTIES WILL EXPIRE AT 715 PM EDT...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1100 PM EDT for southwestern
Michigan.

&&

LAT...LON 4198 8576 4202 8582 4207 8581 4207 8561
TIME...MOT...LOC 2313Z 222DEG 42KT 4210 8567 

$$

MARSILI

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this tornado warning went out at Apr 2, 2:20 PM EDT, 4 hours 20 minutes earlier. Its key messages:

  • A Wind Advisory is in effect through 8 PM EDT for northern Indiana and Lower Michigan. Southerly wind gusts to 45 mph expected.
  • Severe weather is possible between 5-11 PM EDT. There is a Slight Risk for severe weather with damaging winds as the main threat. An isolated tornado or two cannot be ruled out.
  • Flooding concerns persist through the weekend with additional rounds of rain and storms Friday into Saturday.
  • Mild with highs in the 70s through Saturday. Cooler, in the 40s, to begin the new week.
Area forecast discussion, Apr 2, 2:20 PM EDT, 4 hours 20 minutes before
Area Forecast Discussion
National Weather Service Northern Indiana
220 PM EDT Thu Apr 2 2026

.KEY MESSAGES...

- A Wind Advisory is in effect through 8 PM EDT for northern
  Indiana and Lower Michigan. Southerly wind gusts to 45 mph
  expected.

- Severe weather is possible between 5-11 PM EDT. There is a
  Slight Risk for severe weather with damaging winds as the main
  threat. An isolated tornado or two cannot be ruled out.

- Flooding concerns persist through the weekend with additional
 rounds of rain and storms Friday into Saturday.

- Mild with highs in the 70s through Saturday. Cooler, in the
  40s, to begin the new week.

&&

.DISCUSSION...
Issued at 1253 PM EDT Thu Apr 2 2026

A surface low over eastern Kansas continues to be our focus for a
Slight Risk of severe thunderstorms late this afternoon. Critically,
a warm front is gradually lifting into the southern portions of our
forecast area as dew points rise into the mid-50s. South of this
warm front, stratus is clearing as well. Guidance is generally
handling this moisture advection well, which bolsters confidence in
the guidance. The source region for storms later today, west-central
Illinois, remains socked in beneath clouds for the time being. Yet,
HREF members and hourly CAMs remain in fair agreement that
conditions will improve, the stratus and CAP will break, resulting
in a broken line of thunderstorms over northwest IN near 5pm EDT.

In general, ingredients remain disjointed with departing 500mb and
850 mb jets placing our area in the right entrance region briefly,
along with waning MUCAPE below 1,000 j/kg which can be enough when
paired with 45-50 knots of bulk shear (seen here). 0-1 km helicity
is supportive for tornadoes, but again, the holistic environment is
disjointed/marginal. Damaging wind gusts, tornadoes, and heavy
rainfall remain the primary concerns from 5pm and 11pm EDT. High
confidence in a weakening trend as any storms near the I-69 corridor
due to departing upper-level support and waning instability.
Precipitable water values remain high, conducive for downpours, but
area-wide rainfall amounts are forecast to be 0.25-0.50". Lastly,
the inherited wind advisory remains on track but limited by existing
cloudiness. Upstream, wind gusts are increasing (about 40-42mph in
central IL).

Active weather persists both Friday and Saturday. Tonight's cold
front has minimal effect as strong ridging off the Outer Banks
encourages warm, southerly flow. Meanwhile, over the Central US,
cyclogenesis is underway bringing another warm front through our
area Friday. This favors rain primarily south of US-24 that
gradually lifts north Friday. The cold front then sweeps through
Saturday. Preceding rain in the warm sector and lagging jet dynamics
look to limit any severe weather risk on Saturday. However, an
unseasonably moist air mass continues to threaten locally heavy
rainfall resulting in 0.5 to 1" of rain Friday night through
Saturday.

Sharply colder Sunday and Monday with highs in the 40s to near 50.
This remains the case on Tuesday as a secondary surge of cold,
Canadian air becomes established via expansive high pressure. A
clipper system precedes this, brining a 20%-30% chance of rain or
snow showers Monday night across Michigan. Look for warmer
conditions Wednesday and beyond.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 220 PM EDT Thu Apr 2 2026

A low level warm front continues to surge northward across
northern Indiana this afternoon. This front is in the process of
clearing KFWA as of 18Z and will lift north of KSBN in the next
1 to 2 hours. A sharp improvement in the IFR cigs will be noted
with frontal passage along with a veering of low level to the
south. Better mixing in wake of warm frontal passage will result
in south afternoon wind gusts as high as 35+ knots. An area of
pre-frontal forcing across northeast Illinois will likely be the
focal point of shower and thunderstorm development toward the
20Z timeframe and these storms will shift east across northern
Indiana between 21-01Z. Gusty winds of 40+ mph may accompany
the stronger storms this afternoon into early this evening.
Waning instability this evening should weaken these
thunderstorms as they approach I-69 corridor after 01Z. The approach of
cold frontal boundary may also allow isolated showers and
storms to affect KSBN late evening, but convective coverage will
likely be in diminishing state by this time. Strong southerly
pre-frontal winds combined with some sfc decoupling should also
allow some LLWS conditions being met tonight. Mainly dry
conditions are expected late tonight into Friday morning before
stalled frontal boundary may allow for new convection after this
forecast valid period.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...Wind Advisory until 8 PM EDT /7 PM CDT/ this evening for
     INZ005>009-012>015-017-018-020-022>027-032>034-103-104-
     116-203-204-216.
OH...None.
MI...Wind Advisory until 8 PM EDT this evening for MIZ078>080-177-
     277.
MARINE...Gale Warning until 10 PM EDT this evening for LMZ043-046.

&&

DISCUSSION...Brown
AVIATION...Marsili
Hazardous weather outlook, Apr 2, 6:29 PM EDT, 11 minutes before
Hazardous Weather Outlook
National Weather Service Northern Indiana
629 PM EDT Thu Apr 2 2026

INZ005-103-104-203-204-MIZ078-079-177-277-032230-
Elkhart-Northern La Porte-Eastern St. Joseph IN-Southern La Porte-
Western St. Joseph IN-Cass MI-St. Joseph MI-Northern Berrien-
Southern Berrien-
629 PM EDT Thu Apr 2 2026 /529 PM CDT Thu Apr 2 2026/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING...
...TORNADO WATCH 90 IN EFFECT UNTIL 11 PM EDT /10 PM CDT/ THIS
EVENING...

This Hazardous Weather Outlook is for northern Indiana and
southwest Michigan.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Additional rain and storms are possible Friday night into Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

INZ006>009-012>015-017-018-020-022>027-032>034-116-216-MIZ080-032230-
Lagrange-Steuben-Noble-De Kalb-Starke-Pulaski-Marshall-Fulton IN-
Whitley-Allen IN-White-Cass IN-Miami-Wabash-Huntington-Wells-Adams-
Grant-Blackford-Jay-Northern Kosciusko-Southern Kosciusko-Branch-
629 PM EDT Thu Apr 2 2026 /529 PM CDT Thu Apr 2 2026/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/ THIS
EVENING...

This Hazardous Weather Outlook is for northern Indiana and
southwest Michigan.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Wind Advisory.

Additional rain and storms today will worsen any ongoing flooding.
Scattered strong to severe storms will be possible tonight between
5-11 PM EDT mainly along and north of US 24. Damaging winds are the
main threat but isolated tornadoes cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Additional rain and storms are possible Friday night into Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

MIZ081-OHZ001-002-004-005-015-016-024-025-032230-
Hillsdale-Williams-Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-
Allen OH-
629 PM EDT Thu Apr 2 2026

This Hazardous Weather Outlook is for southwest Michigan and
northwest Ohio.

.DAY ONE...Tonight.

Additional rain and storms today will worsen any ongoing flooding.
Scattered strong to severe storms will be possible tonight between
5-11 PM EDT mainly along and north of US 24. Damaging winds are the
main threat but isolated tornadoes cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Additional rain and storms are possible Friday night into Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LMZ043-046-032230-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
629 PM EDT Thu Apr 2 2026

...GALE WARNING IN EFFECT UNTIL 10 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for the nearshore waters of
southeastern Lake Michigan.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 1:55 AM EDTWind AdvisoryIWXBerrien, Branch, Cass, Saint Joseph18 hr
Apr 2, 6:32 PM EDTSevere Thunderstorm WarningIWXCass, Saint Joseph43 min

Nearby

Tornado Warnings in Michigan, 2026Every tornado warning in 2026Tornadoes in 2026

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.