Alert archive / Michigan / Tornado Warnings in 2021

Tornado Warning 3, NWS Detroit, MI

June 26, 2021Genesee County, Michigan

NWS Detroit, MI issued this tornado warning at Jun 26, 2021, 6:17 PM EDT for Genesee County, Michigan. It was in force for 43 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
Jun 26, 2021, 6:17 PM EDT (22:17 UTC)
Expired
Jun 26, 2021, 7:00 PM EDT
In force
43 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Genesee County, MI

The radar

The Detroit radar (KDTX), 48 km from the middle of the area, began a volume at 22:19 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 watch it was issued in

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

IssuedProductOfficeLasted
Jun 26, 4:04 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.3 hours before the alert went out and 48 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 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 492 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, Detroit, MI at 12:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
492 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
493 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

290 
WFUS53 KDTX 262217
TORDTX
MIC049-262300-
/O.NEW.KDTX.TO.W.0003.210626T2217Z-210626T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
617 PM EDT Sat Jun 26 2021

The National Weather Service in Detroit/Pontiac has issued a

* Tornado Warning for...
  Northern Genesee County in southeastern Michigan...

* Until 700 PM EDT.
    
* At 617 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Lennon, or near New Lothrop, moving northeast 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...
  Flushing around 630 PM EDT.
  Flint, Mount Morris and Beecher around 635 PM EDT.

Other locations in the path of this tornadic thunderstorm include
Clio, Crossroads Village, Otisville and Otter 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 4296 8392 4308 8393 4322 8372 4322 8346
      4307 8346
TIME...MOT...LOC 2217Z 239DEG 38KT 4303 8396 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

SC
3 follow-up statements
733 
WWUS53 KDTX 262225
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
625 PM EDT Sat Jun 26 2021

MIC049-262300-
/O.CON.KDTX.TO.W.0003.000000T0000Z-210626T2300Z/
Genesee MI-
625 PM EDT Sat Jun 26 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR NORTHERN
GENESEE COUNTY...
    
At 624 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Flushing, moving northeast 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.

Locations impacted include...
  Flint, Clio, Mount Morris, Beecher, Crossroads Village, Burton, 
  Otisville and Otter 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 4297 8392 4308 8393 4322 8372 4322 8346
      4307 8346
TIME...MOT...LOC 2224Z 240DEG 33KT 4306 8387 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

KDK
506 
WWUS53 KDTX 262234
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
634 PM EDT Sat Jun 26 2021

MIC049-262300-
/O.CON.KDTX.TO.W.0003.000000T0000Z-210626T2300Z/
Genesee MI-
634 PM EDT Sat Jun 26 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR NORTHERN
GENESEE COUNTY...
    
At 634 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Mount Morris, or near Clio, 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.

Locations impacted include...
Flint, Flushing, Clio, Burton, Mount Morris, Otisville, Otter Lake,
Beecher, Crossroads Village, Genesee and Thetford Township.

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 4300 8379 4312 8387 4322 8372 4322 8346
      4307 8346
TIME...MOT...LOC 2234Z 239DEG 38KT 4312 8374 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

KDK
647 
WWUS53 KDTX 262251
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
651 PM EDT Sat Jun 26 2021

MIC049-262300-
/O.EXP.KDTX.TO.W.0003.000000T0000Z-210626T2300Z/
Genesee MI-
651 PM EDT Sat Jun 26 2021

...THE TORNADO WARNING FOR NORTHERN GENESEE COUNTY WILL EXPIRE AT 700
PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1000 PM EDT for southeastern
Michigan.

Remember, a Tornado Warning still remains in effect for southern 
Genesee County.

LAT...LON 4300 8379 4312 8387 4322 8372 4322 8346
      4307 8346
TIME...MOT...LOC 2250Z 239DEG 38KT 4321 8354 

$$

KDK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 8:02 PM EDTSpecial Weather StatementDTXMacomb28 min
Jun 25, 8:12 PM EDTSpecial Weather StatementDTXLapeer78 min
Jun 25, 8:32 PM EDTSpecial Marine WarningDTX73 min
Jun 26, 12:15 AM EDTAreal Flood AdvisoryDTXWashtenaw, Wayne3 hr
Jun 26, 12:58 AM EDTFlash Flood WarningDTXWashtenaw, Wayne5 hr
Jun 26, 2:20 AM EDTAreal Flood AdvisoryDTXMacomb, Oakland, Saint Clair3 hr
Jun 26, 2:51 AM EDTRiver Flood WarningDTXWayne36 hr
Jun 26, 2:52 AM EDTRiver Flood WarningDTXWayne36 hr
Jun 26, 3:15 AM EDTRiver Flood WarningDTXWayne32 hr
Jun 26, 4:00 AM EDTFlood WatchDTXBay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more22 hr
Jun 26, 5:54 AM EDTAreal Flood WarningDTXWashtenaw, Wayne10 hr
Jun 26, 8:57 AM EDTRiver Flood WarningDTXMacomb17 hr
Jun 26, 9:45 AM EDTMarine Dense Fog AdvisoryDTX24 hr
Jun 26, 2:53 PM EDTSmall Craft AdvisoryDTX7 hr
Jun 26, 3:05 PM EDTSpecial Weather StatementDTXSanilac40 min
Jun 26, 3:12 PM EDTSpecial Marine WarningDTX78 min
Jun 26, 3:44 PM EDTSpecial Weather StatementDTXBay46 min
Jun 26, 4:16 PM EDTSpecial Marine WarningDTX59 min
Jun 26, 4:45 PM EDTTornado WarningDTXBay30 min
Jun 26, 5:07 PM EDTSpecial Marine WarningDTX47 min
Jun 26, 5:32 PM EDTSevere Thunderstorm WarningDTXShiawassee58 min
Jun 26, 5:37 PM EDTSpecial Marine WarningDTX53 min
Jun 26, 5:42 PM EDTSevere Thunderstorm WarningDTXSaginaw50 min
Jun 26, 6:05 PM EDTTornado WarningDTXShiawassee55 min
Jun 26, 6:10 PM EDTSevere Thunderstorm WarningDTXGenesee80 min
Jun 26, 6:41 PM EDTSevere Thunderstorm WarningDTXLivingston79 min
Jun 26, 6:43 PM EDTTornado WarningDTXGenesee42 min
Jun 26, 6:49 PM EDTSevere Thunderstorm WarningDTXLapeer43 min
Jun 26, 7:38 PM EDTTornado WarningDTXLivingston35 min
Jun 26, 7:55 PM EDTSpecial Weather StatementDTXLapeer, Oakland65 min

Nearby

Tornado Warnings in Michigan, 2021Every tornado warning in 2021Tornadoes 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.