Alert archive / Michigan / Tornado Warnings in 2018

Tornado Warning 4, NWS Detroit, MI

September 25, 2018Midland County, Michigan

NWS Detroit, MI issued this tornado warning at Sep 25, 2018, 7:15 PM EDT for Midland County, Michigan. It was in force for 16 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: Sep 25, 2018, 7:15 PM EDT (23:15 UTC)
Expired: Sep 25, 2018, 7:31 PM EDT
In force: 16 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Midland County, MI

The radar

The Detroit radar (KDTX), 116 km from the middle of the area, began a volume at 23:14 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

Detroit, MI (KDTX), launched 12:00Z, 11.3 hours before the alert went out and 116 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 197 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 463 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

023 
WFUS53 KDTX 252315
TORDTX
MIC111-252345-
/O.NEW.KDTX.TO.W.0004.180925T2315Z-180925T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
715 PM EDT TUE SEP 25 2018

The National Weather Service in Detroit/Pontiac has issued a

* Tornado Warning for...
  Southeastern Midland County in southeastern Michigan...

* Until 745 PM EDT.
    
* At 715 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Midland, moving northeast at 30 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...
  Midland around 730 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Gordonville, Poseyville and Laporte.

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 4367 8417 4348 8417 4348 8437 4357 8440
TIME...MOT...LOC 2315Z 242DEG 27KT 4355 8430 

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

$$

SC

1 follow-up statement

808 
WWUS53 KDTX 252331
SVSDTX

Severe Weather Statement
National Weather Service Detroit/Pontiac MI
731 PM EDT TUE SEP 25 2018

MIC111-252340-
/O.CAN.KDTX.TO.W.0004.000000T0000Z-180925T2345Z/
Midland MI-
731 PM EDT TUE SEP 25 2018

...THE TORNADO WARNING FOR SOUTHEASTERN MIDLAND COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning has been cancelled.

LAT...LON 4367 8417 4348 8417 4348 8437 4357 8440
TIME...MOT...LOC 2329Z 242DEG 27KT 4361 8416 

$$

SC

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 25, 3:58 PM EDT	Small Craft Advisory	DTX		24 hr
Sep 25, 6:45 PM EDT	Special Weather Statement	DTX	Bay, Midland, Saginaw, Shiawassee	60 min
Sep 25, 6:49 PM EDT	Severe Thunderstorm Warning	DTX	Midland	42 min
Sep 25, 7:41 PM EDT	Special Marine Warning	DTX		94 min

Nearby

Tornado Warnings in Michigan, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.