Alert archive / Michigan / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 35, NWS Gaylord, MI

September 17, 2012Presque Isle County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 17, 2012, 4:03 PM EDT for Presque Isle County, Michigan. It was in force for 42 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 17, 2012, 4:03 PM EDT (20:03 UTC)
Expired: Sep 17, 2012, 4:45 PM EDT
In force: 42 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Presque Isle County, MI

The radar

The NCL Michigan radar (KAPX), 90 km from the middle of the area, began a volume at 20:03 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, 8.1 hours before the alert went out and 110 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1469 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 147 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.

846 
WUUS53 KAPX 172003
SVRAPX
MIC141-172045-
/O.NEW.KAPX.SV.W.0035.120917T2003Z-120917T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
403 PM EDT MON SEP 17 2012

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PRESQUE ISLE COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 445 PM EDT

* AT 358 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  TOMAHAWK CREEK FLOODING...OR 9 MILES SOUTH OF ONAWAY...AND MOVING
  NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROGERS CITY...MILLERSBURG...BISMA TOWNSHIP...HAWKS...METZ...
  HAGENSVILLE...THOMPSONS HARBOR STATE PARK AND MOLTKE TOWNSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4521 8387 4520 8423 4528 8422 4547 8386
      4543 8380 4542 8371 4537 8363 4536 8359
      4537 8353 4535 8352 4537 8350 4536 8349
TIME...MOT...LOC 2003Z 240DEG 38KT 4527 8412
WIND...HAIL 60MPH 1.50IN

$$

HALBLAUB

3 follow-up statements

193 
WWUS34 KAPX 172012
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
412 PM EDT MON SEP 17 2012

MIC141-172045-
/O.CON.KAPX.SV.W.0035.000000T0000Z-120917T2045Z/
PRESQUE ISLE MI-
412 PM EDT MON SEP 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
PRESQUE ISLE COUNTY UNTIL 445 PM EDT...

AT 407 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
MILLERSBURG...OR 9 MILES SOUTHEAST OF ONAWAY...MOVING NORTHEAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  ROGERS CITY...BISMA TOWNSHIP...HAWKS...METZ...HAGENSVILLE...
  THOMPSONS HARBOR STATE PARK AND MOLTKE TOWNSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4521 8387 4520 8412 4533 8412 4547 8386
      4543 8380 4542 8371 4537 8363 4536 8359
      4537 8353 4535 8352 4537 8350 4536 8349
TIME...MOT...LOC 2012Z 241DEG 37KT 4530 8401
WIND...HAIL 60MPH 1.50IN

$$

HALBLAUB

977 
WWUS34 KAPX 172026
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
426 PM EDT MON SEP 17 2012

MIC141-172045-
/O.CON.KAPX.SV.W.0035.000000T0000Z-120917T2045Z/
PRESQUE ISLE MI-
426 PM EDT MON SEP 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
PRESQUE ISLE COUNTY UNTIL 445 PM EDT...

AT 421 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
HAWKS...OR 7 MILES SOUTHWEST OF ROGERS CITY...MOVING NORTHEAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  ROGERS CITY AND THOMPSONS HARBOR STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE... SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 4534 8353 4523 8388 4535 8399 4536 8399
      4546 8387 4543 8380 4542 8371 4537 8362
      4537 8353 4536 8352 4537 8349
TIME...MOT...LOC 2026Z 241DEG 37KT 4537 8383
WIND...HAIL 60MPH 1.50IN

$$

HALBLAUB

716 
WWUS34 KAPX 172046
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
446 PM EDT MON SEP 17 2012

MIC141-172056-
/O.EXP.KAPX.SV.W.0035.000000T0000Z-120917T2045Z/
PRESQUE ISLE MI-
446 PM EDT MON SEP 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PRESQUE ISLE COUNTY
HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA...AND INTO LAKE HURON.

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

LAT...LON 4534 8353 4523 8388 4535 8399 4536 8399
      4546 8387 4543 8380 4542 8371 4537 8362
      4537 8353 4536 8352 4537 8349
TIME...MOT...LOC 2026Z 241DEG 37KT 4537 8383
WIND...HAIL <50MPH <.50IN

$$

HALBLAUB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 4:32 AM EDT	Small Craft Advisory	APX		48 hr
Sep 17, 9:54 AM EDT	Special Marine Warning	APX		66 min
Sep 17, 10:21 AM EDT	Severe Thunderstorm Warning	APX	Charlevoix	14 min
Sep 17, 11:08 AM EDT	Special Marine Warning	APX		67 min
Sep 17, 1:48 PM EDT	Severe Thunderstorm Warning	APX	Presque Isle	28 min
Sep 17, 1:50 PM EDT	Special Marine Warning	APX		36 min
Sep 17, 4:35 PM EDT	Special Marine Warning	APX		40 min
Sep 17, 5:59 PM EDT	Severe Thunderstorm Warning	APX	Alpena, Montmorency, Presque Isle	58 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2012 Every severe thunderstorm warning in 2012

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.