Alert archive / Michigan / Tornado Warnings in 2022

Tornado Warning 2, NWS Grand Rapids, MI

July 11, 2022Clinton County, Ionia County, Michigan

NWS Grand Rapids, MI issued this tornado warning at Jul 11, 2022, 10:14 PM EDT for Clinton County, Ionia County, Michigan. It was in force for 31 min. 3 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
Jul 11, 2022, 10:14 PM EDT (02:14 UTC)
Expired
Jul 11, 2022, 10:45 PM EDT
In force
31 min
Issued by
NWS Grand Rapids, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Clinton County, MI, Ionia County, MI

The radar

The Grand Rapids radar (KGRR), 80 km from the middle of the area, began a volume at 02:12 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
Jul 11, 10:30 PM EDTTSTM WND DMG4 Ssw Saint Johns, MICORRECTS PREVIOUS TSTM WND DMG REPORT FROM 4 SSW SAINT JOHNS. TWO TREES DOWN, POWER OUTAGES. TIME ESTIMATED FROM RADAR.
Jul 11, 10:30 PM EDTTSTM WND DMG4 Ssw Saint Johns, MITWO TREES DOWN, POWER OUTAGES. TIME ESTIMATED FROM RADAR.
Jul 11, 10:30 PM EDTTSTM WND DMG4 Ssw Saint Johns, MITWO TREE SOWN, POWER OUTAGES. TIME ESTIMATED FROM RADAR.

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

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 2.2 hours before the alert went out and 94 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 00:00Z on 2022-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 528 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, Detroit, MI at 00:00Z on 2022-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
528 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

482 
WFUS53 KGRR 120214
TORGRR
MIC037-067-120245-
/O.NEW.KGRR.TO.W.0002.220712T0214Z-220712T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Rapids MI
1014 PM EDT Mon Jul 11 2022

The National Weather Service in Grand Rapids has issued a

* Tornado Warning for...
  East central Ionia County in south central Michigan...
  Clinton County in south central Michigan...

* Until 1045 PM EDT.
    
* At 1014 PM EDT, a severe thunderstorm capable of producing a
  tornado was located 6 miles northeast of Portland, moving east at
  40 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...
  St. Johns around 1030 PM EDT.

Other locations in the path of this tornadic thunderstorm include
DeWitt.

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 4277 8442 4285 8493 4303 8489 4300 8436
      4277 8436
TIME...MOT...LOC 0214Z 278DEG 34KT 4294 8480 

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

$$

OSTUNO
2 follow-up statements
413 
WWUS53 KGRR 120223
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
1023 PM EDT Mon Jul 11 2022

MIC067-120232-
/O.CAN.KGRR.TO.W.0002.000000T0000Z-220712T0245Z/
Ionia MI-
1023 PM EDT Mon Jul 11 2022

...THE TORNADO WARNING FOR EAST CENTRAL IONIA COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4280 8442 4289 8476 4300 8471 4300 8436
      4280 8436
TIME...MOT...LOC 0222Z 277DEG 36KT 4293 8466 

$$

MIC037-120245-
/O.CON.KGRR.TO.W.0002.000000T0000Z-220712T0245Z/
Clinton MI-
1023 PM EDT Mon Jul 11 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT FOR CENTRAL
CLINTON COUNTY...
    
At 1022 PM EDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of St. Johns, moving east at 40 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...
  DeWitt around 1030 PM EDT.

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 4280 8442 4289 8476 4300 8471 4300 8436
      4280 8436
TIME...MOT...LOC 0222Z 277DEG 36KT 4293 8466 

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

$$

OSTUNO
843 
WWUS53 KGRR 120244
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
1044 PM EDT Mon Jul 11 2022

MIC037-120254-
/O.EXP.KGRR.TO.W.0002.000000T0000Z-220712T0245Z/
Clinton MI-
1044 PM EDT Mon Jul 11 2022

...THE TORNADO WARNING FOR CENTRAL CLINTON COUNTY WILL EXPIRE AT 1045
PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4280 8442 4289 8476 4300 8471 4300 8436
      4280 8436
TIME...MOT...LOC 0244Z 278DEG 34KT 4290 8440 

$$

OSTUNO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 8:20 PM EDTSevere Thunderstorm WarningGRRMason, Oceana55 min
Jul 11, 9:04 PM EDTSpecial Weather StatementGRRMuskegon, Newaygo86 min
Jul 11, 9:35 PM EDTSpecial Weather StatementGRRClare, Isabella, Mecosta, Osceola115 min
Jul 11, 9:52 PM EDTSpecial Weather StatementGRRMontcalm83 min
Jul 12, 3:24 AM EDTBeach Hazards StatementGRRAllegan, Muskegon, Ottawa, Van Buren11 hr
Jul 12, 3:24 AM EDTSmall Craft AdvisoryGRR11 hr

Nearby

Tornado Warnings in Michigan, 2022Every tornado warning in 2022Tornadoes in 2022

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.