Alert archive / Michigan / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 2, NWS Gaylord, MI

May 8, 2014Mackinac County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at May 8, 2014, 3:40 PM EDT for Mackinac County, Michigan. It was in force for 50 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
May 8, 2014, 3:40 PM EDT (19:40 UTC)
Expired
May 8, 2014, 4:30 PM EDT
In force
50 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Mackinac County, MI

The radar

The NCL Michigan radar (KAPX), 116 km from the middle of the area, began a volume at 19:42 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

Alpena, MI (KAPX), launched 12:00Z, 7.7 hours before the alert went out and 197 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, Alpena, MI at 12:00Z on 2014-05-08Temperature 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, Alpena, MI at 12:00Z on 2014-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 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
700 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

650 
WUUS53 KAPX 081940
SVRAPX
MIC097-082030-
/O.NEW.KAPX.SV.W.0002.140508T1940Z-140508T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
340 PM EDT THU MAY 8 2014

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MACKINAC COUNTY IN EASTERN UPPER MICHIGAN...

* UNTIL 430 PM EDT

* AT 338 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  ALLENVILLE...AND MOVING NORTHEAST AT 25 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HESSEL AROUND 415 PM EDT.
  CEDARVILLE AROUND 420 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4599 8423 4592 8444 4597 8445 4599 8450
      4595 8453 4602 8455 4604 8466 4598 8467
      4596 8461 4595 8473 4586 8469 4586 8468
      4590 8465 4588 8461 4587 8461 4583 8473
      4586 8482 4601 8493 4615 8456
TIME...MOT...LOC 1940Z 246DEG 23KT 4596 8475

HAIL...1.00IN
WIND...<50MPH

$$

LAWRENCE
3 follow-up statements
704 
WWUS53 KAPX 081949
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
349 PM EDT THU MAY 8 2014

MIC097-082030-
/O.CON.KAPX.SV.W.0002.000000T0000Z-140508T2030Z/
MACKINAC MI-
349 PM EDT THU MAY 8 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MACKINAC COUNTY UNTIL 430 PM EDT...

AT 345 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES NORTH OF
EVERGREEN SHORES...AND MOVING NORTHEAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HESSEL AROUND 415 PM EDT.
  CEDARVILLE AROUND 420 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4599 8424 4592 8444 4594 8442 4599 8450
      4596 8452 4602 8455 4604 8466 4598 8467
      4596 8461 4596 8465 4598 8467 4596 8472
      4589 8474 4595 8482 4603 8480 4615 8456
TIME...MOT...LOC 1949Z 246DEG 23KT 4598 8467

HAIL...1.00IN
WIND...<50MPH

$$

LAWRENCE
734 
WWUS53 KAPX 082001
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
401 PM EDT THU MAY 8 2014

MIC097-082030-
/O.CON.KAPX.SV.W.0002.000000T0000Z-140508T2030Z/
MACKINAC MI-
401 PM EDT THU MAY 8 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MACKINAC COUNTY UNTIL 430 PM EDT...

AT 400 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES WEST OF
HESSEL...AND MOVING NORTHEAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HESSEL AROUND 415 PM EDT.
  CEDARVILLE AROUND 420 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4605 8467 4609 8457 4599 8424 4592 8444
      4594 8442 4599 8450 4596 8452 4602 8455
      4604 8466 4598 8467 4596 8461 4596 8465
      4598 8467 4598 8468
TIME...MOT...LOC 2001Z 246DEG 23KT 4601 8457

HAIL...1.00IN
WIND...<50MPH

$$

LAWRENCE
819 
WWUS53 KAPX 082019
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
419 PM EDT THU MAY 8 2014

MIC097-082028-
/O.CAN.KAPX.SV.W.0002.000000T0000Z-140508T2030Z/
MACKINAC MI-
419 PM EDT THU MAY 8 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MACKINAC COUNTY
IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED CONSIDERABLY OVER 
THE PAST 15 MINUTES...AND NO LONGER POSES AN IMMEDIATE THREAT TO 
LIFE OR PROPERTY. HOWEVER...SMALL HAIL UP TO THE SIZE OF DIMES 
REMAINS POSSIBLE WITH THIS THUNDERSTORM AS IT MOVES INTO SOUTHERN 
CHIPPEWA COUNTY.

LAT...LON 4605 8467 4609 8457 4599 8424 4592 8444
      4594 8442 4599 8450 4596 8452 4602 8455
      4604 8466 4598 8467 4596 8461 4596 8465
      4598 8467 4598 8468
TIME...MOT...LOC 2018Z 246DEG 23KT 4605 8443

$$

LAWRENCE

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 3:43 PM EDTSpecial Marine WarningAPX32 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2014Every severe thunderstorm warning in 2014

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.