Alert archive / Michigan / Tornado Warnings in 2017

Tornado Warning 2, NWS Gaylord, MI

August 3, 2017Antrim County, Michigan

NWS Gaylord, MI issued this tornado warning at Aug 3, 2017, 6:14 PM EDT for Antrim County, Michigan. It was in force for 31 min. 1 report 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
Aug 3, 2017, 6:14 PM EDT (22:14 UTC)
Expired
Aug 3, 2017, 6:45 PM EDT
In force
31 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Antrim County, MI

The radar

The NCL Michigan radar (KAPX), 51 km from the middle of the area, began a volume at 22:17 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
Aug 3, 6:15 PM EDTTSTM WND DMG1 Wsw Kewadin, MIDELAYED REPORT RELAYED FROM ANTRIM COUNTY LAW ENFORCEMENT. TIME ESTIMATED. TREES AND POWER LINES REPORTED DOWN ON WILLIAMS DRIVE.

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

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.2 hours before the alert went out and 222 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, Green Bay/Straub, WI at 12:00Z on 2017-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Green Bay/Straub, WI at 12:00Z on 2017-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 190 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
721 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
190 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

773 
WFUS53 KAPX 032214
TORAPX
MIC009-032245-
/O.NEW.KAPX.TO.W.0002.170803T2214Z-170803T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Gaylord MI
614 PM EDT THU AUG 3 2017

The National Weather Service in Gaylord has issued a

* Tornado Warning for...
  Western Antrim County in northern Michigan...

* Until 645 PM EDT
    
* At 613 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Kewadin, or just north of Elk Rapids, moving
  northeast at 20 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...
  Elk Rapids, Bellaire, Torch Lake, Central Lake, Clam River,
  Kewadin, Alden and Lake Bellaire.

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 4496 8547 4499 8547 4514 8529 4497 8504
      4486 8528 4485 8532 4482 8535 4485 8538
      4488 8538 4489 8542 4496 8548
TIME...MOT...LOC 2213Z 237DEG 19KT 4494 8537 

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

$$

JZ
3 follow-up statements
885 
WWUS53 KAPX 032223
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
623 PM EDT THU AUG 3 2017

MIC009-032245-
/O.CON.KAPX.TO.W.0002.000000T0000Z-170803T2245Z/
Antrim MI-
623 PM EDT THU AUG 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR
WESTERN ANTRIM COUNTY...
    
At 623 PM EDT, a severe thunderstorm capable of producing a tornado
was located just north of Kewadin, moving northeast at 15 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...
Bellaire, Torch Lake, Central Lake, Clam River, Kewadin and Lake
Bellaire.

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 4503 8542 4514 8529 4500 8508 4491 8528
      4489 8535 4491 8540 4494 8542
TIME...MOT...LOC 2223Z 226DEG 14KT 4496 8535 

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

$$

JZ
205 
WWUS53 KAPX 032230
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
630 PM EDT THU AUG 3 2017

MIC009-032245-
/O.CON.KAPX.TO.W.0002.000000T0000Z-170803T2245Z/
Antrim MI-
630 PM EDT THU AUG 3 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR WESTERN
ANTRIM COUNTY...
    
At 629 PM EDT, a severe thunderstorm capable of producing a tornado
was located just northeast of Kewadin, moving northeast at 15 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...
Bellaire, Central Lake, Clam River, Kewadin and Lake Bellaire. 

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 4504 8540 4512 8529 4500 8511 4491 8528
      4490 8533 4491 8537 4494 8540
TIME...MOT...LOC 2229Z 241DEG 11KT 4497 8533 

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

$$

JZ
657 
WWUS53 KAPX 032240
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
640 PM EDT THU AUG 3 2017

MIC009-032249-
/O.EXP.KAPX.TO.W.0002.000000T0000Z-170803T2245Z/
Antrim MI-
640 PM EDT THU AUG 3 2017

...THE TORNADO WARNING FOR WEST CENTRAL ANTRIM COUNTY WILL EXPIRE AT
645 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.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 4504 8540 4512 8529 4500 8511 4491 8528
      4490 8533 4491 8537 4494 8540
TIME...MOT...LOC 2239Z 237DEG 19KT 4500 8527 

$$

JZ

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 4:21 PM EDTSpecial Marine WarningAPX54 min
Aug 3, 4:23 PM EDTSpecial Weather StatementAPXAntrim37 min
Aug 3, 4:24 PM EDTGale WarningAPX34 hr
Aug 3, 4:24 PM EDTSmall Craft AdvisoryAPX47 hr
Aug 3, 4:42 PM EDTSpecial Marine WarningAPX93 min
Aug 3, 5:08 PM EDTSevere Thunderstorm WarningAPXManistee67 min
Aug 3, 5:27 PM EDTSevere Thunderstorm WarningAPXManistee48 min
Aug 3, 7:33 PM EDTSpecial Weather StatementAPXAntrim, Cheboygan, Grand Traverse, Kalkaska, Missaukee, Otsego and 1 more117 min

Nearby

Tornado Warnings in Michigan, 2017Every tornado warning in 2017Tornadoes in 2017

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.