Alert archive / Michigan / Tornado Warnings in 2014

Tornado Warning 7, NWS Gaylord, MI

August 30, 2014Alcona County, Alpena County, Michigan

NWS Gaylord, MI issued this tornado warning at Aug 30, 2014, 4:43 PM EDT for Alcona County, Alpena County, Michigan. It was in force for 30 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 30, 2014, 4:43 PM EDT (20:43 UTC)
Expired: Aug 30, 2014, 5:13 PM EDT
In force: 30 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Alcona County, MI, Alpena County, MI

The radar

The NCL Michigan radar (KAPX), 103 km from the middle of the area, began a volume at 20:42 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.

What was reported inside it

Time	Report	Where	Remark
Aug 30, 4:55 PM EDT	FUNNEL CLOUD	3 Wsw Ossineke, MI	SEVERAL PHOTOS RECEIVED OF A LIKELY FUNNEL CLOUD. TIME BASED ON RADAR.

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

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 8.7 hours before the alert went out and 84 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: 368 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

204 
WFUS53 KAPX 302043
TORAPX
MIC001-007-302130-
/O.NEW.KAPX.TO.W.0007.140830T2043Z-140830T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
443 PM EDT SAT AUG 30 2014

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ALCONA COUNTY IN NORTHERN LOWER MICHIGAN...
  SOUTHEASTERN ALPENA COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 530 PM EDT

* AT 439 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR HUBBARD LAKE...AND MOVING EAST AT 25 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...
  OSSINEKE...SPRUCE...BLACK RIVER...AND NEGWEGON STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A 
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR 
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT 
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4478 8365 4490 8369 4497 8344 4494 8343
      4491 8338 4488 8330 4485 8331 4484 8330
      4483 8331 4482 8328 4479 8328
TIME...MOT...LOC 2042Z 251DEG 21KT 4485 8359

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

$$

3 follow-up statements

049 
WWUS53 KAPX 302054
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
454 PM EDT SAT AUG 30 2014

MIC001-007-302130-
/O.CON.KAPX.TO.W.0007.000000T0000Z-140830T2130Z/
ALCONA MI-ALPENA MI-
454 PM EDT SAT AUG 30 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ALPENA AND
NORTHEASTERN ALCONA COUNTIES UNTIL 530 PM EDT...

AT 450 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 4 MILES NORTHWEST OF SPRUCE...AND MOVING EAST AT 25 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...
OSSINEKE...SOUTH POINT...AND NEGWEGON STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4480 8359 4492 8361 4497 8344 4494 8343
      4491 8338 4488 8330 4485 8331 4484 8330
      4483 8331 4482 8328 4479 8328
TIME...MOT...LOC 2054Z 249DEG 22KT 4488 8349

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

$$

JZ

663 
WWUS53 KAPX 302102
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
502 PM EDT SAT AUG 30 2014

MIC001-302112-
/O.CAN.KAPX.TO.W.0007.000000T0000Z-140830T2130Z/
ALCONA MI-
502 PM EDT SAT AUG 30 2014

...THE TORNADO WARNING FOR NORTHEASTERN ALCONA COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4486 8352 4494 8353 4497 8344 4494 8343
      4491 8338 4488 8330 4486 8331
TIME...MOT...LOC 2102Z 244DEG 33KT 4491 8340

$$

MIC007-302130-
/O.CON.KAPX.TO.W.0007.000000T0000Z-140830T2130Z/
ALPENA MI-
502 PM EDT SAT AUG 30 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ALPENA COUNTY
UNTIL 530 PM EDT...

AT 501 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR OSSINEKE...AND 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.

LOCATIONS IMPACTED INCLUDE...
  OSSINEKE AND SOUTH POINT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4486 8352 4494 8353 4497 8344 4494 8343
      4491 8338 4488 8330 4486 8331
TIME...MOT...LOC 2102Z 244DEG 33KT 4491 8340

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

$$

JZ

261 
WWUS53 KAPX 302113
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
513 PM EDT SAT AUG 30 2014

MIC007-302123-
/O.CAN.KAPX.TO.W.0007.000000T0000Z-140830T2130Z/
ALPENA MI-
513 PM EDT SAT AUG 30 2014

...THE TORNADO WARNING FOR SOUTHEASTERN ALPENA COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN GAYLORD.

LAT...LON 4486 8352 4494 8353 4497 8344 4494 8343
      4491 8338 4488 8330 4486 8331
TIME...MOT...LOC 2113Z 244DEG 33KT 4495 8327

$$

JZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 3:09 PM EDT	Severe Thunderstorm Warning	APX	Crawford, Oscoda	51 min
Aug 30, 3:19 PM EDT	Tornado Warning	APX	Oscoda	41 min
Aug 30, 3:56 PM EDT	Tornado Warning	APX	Alcona, Alpena, Oscoda	49 min
Aug 30, 4:39 PM EDT	Special Marine Warning	APX		96 min
Aug 30, 5:06 PM EDT	Special Marine Warning	APX		84 min

Nearby

Tornado Warnings in Michigan, 2014 Every tornado warning in 2014 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.