Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 9, NWS Gaylord, MI

October 18, 2007Alcona County, Crawford County, Oscoda County, Michigan

NWS Gaylord, MI issued this tornado warning at Oct 18, 2007, 8:19 PM EDT for Alcona County, Crawford County, Oscoda County, Michigan. It was in force for 27 min. 7 reports 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
Oct 18, 2007, 8:19 PM EDT (00:19 UTC)
Expired
Oct 18, 2007, 8:46 PM EDT
In force
27 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon

Counties Alcona County, MI, Crawford County, MI, Oscoda County, MI

The radar

The NCL Michigan radar (KAPX), 51 km from the middle of the area, began a volume at 00:21 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
Oct 18, 8:30 PM EDTTSTM WND DMG2 N Luzerne, MI2 HOMES DAMAGED...100 TREES DOWN
Oct 18, 8:30 PM EDTHAIL 1.755 N Mio, MI
Oct 18, 8:30 PM EDTTORNADO2 N Luzerne, MIPOSSIBLE TORNADO. 2 HOMES DAMAGED...100 TREES DOWN
Oct 18, 8:42 PM EDTTORNADO4 Wnw Curran, MISTORM SURVEY CREW CONFIRMS A SIXTH TORNADO FROM THE OUTBREAK LAST THURSDAY. CONSIDERABLE TREE DAMAGE NEAR MCCOLLUM LAKE ROAD ALONG ALCONA/OSCODA COUNTY LINE. SWIRL MARKINGS SEEN IN FIELDS. STRUCTURAL DAMAGE UNKNOWN...AS BUILDINGS ARE ON PRIVATE PROPERTY AND DI
Oct 18, 8:42 PM EDTTORNADO6 Nw Curran, MISTORM SURVEY CREW CONFIRMS A SIXTH TORNADO FROM THE OUTBREAK LAST THURSDAY. THE TORNADO IS RATED EF1 WITH WINDS UP TO 105 MPH. CONSIDERABLE TREE DAMAGE NEAR MCCOLLUM LAKE ROAD ALONG ALCONA/OSCODA COUNTY LINE. SWIRL MARKINGS SEEN IN FIELDS. STRUCTURAL DAMAGE UN
Oct 18, 8:45 PM EDTHAIL 0.75Luzerne, MI
Oct 18, 8:55 PM EDTTSTM WND DMG10 W Hubbard Lake, MITREES DOWN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 18, 4:23 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 00:00Z, 0.3 hours before the alert went out and 147 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 00:00Z on 2007-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 764 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 00:00Z on 2007-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 456 square meters per square second.1939587897117Sfc1 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
764 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
966 m above ground
0-6 km bulk shear
94 kt
0-1 km storm-relative helicity
456 m²/s²
0-3 km storm-relative helicity
453 m²/s²
Significant tornado parameter
2.1
Supercell composite
9.6

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KAPX 190019
TORAPX
MIC001-039-135-190100-
/O.NEW.KAPX.TO.W.0009.071019T0019Z-071019T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
819 PM EDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* TORNADO WARNING FOR...
  CRAWFORD COUNTY IN NORTHERN LOWER MICHIGAN...
  ALCONA COUNTY IN NORTHERN LOWER MICHIGAN...
  OSCODA COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 900 PM EDT

* AT 816 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
  LOCATED NEAR RED OAK...OR ABOUT 5 MILES WEST OF MIO...MOVING
  NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FAIRVIEW...
  COMINS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING
PREVIOUSLY ISSUED FOR THE WARNED AREA.

LAT...LON 4452 8432 4465 8443 4484 8431 4485 8371
      4461 8397
TIME...MOT...LOC 0019Z 230DEG 51KT 4472 8419

$$
1 follow-up statement
000 
WWUS34 KAPX 190046
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
846 PM EDT THU OCT 18 2007

MIC001-039-135-190056-
/O.CAN.KAPX.TO.W.0009.000000T0000Z-071019T0100Z/
CRAWFORD MI-ALCONA MI-OSCODA MI-
846 PM EDT THU OCT 18 2007

...THE TORNADO WARNING FOR OSCODA...ALCONA AND CRAWFORD COUNTIES IS
CANCELLED...

AT 846 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM WHICH PROMPTED THE TORNADO WARNING HAS EXITED THE AREA. THE
WARNING HAS THEREFORE BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY
IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4452 8432 4465 8443 4484 8431 4485 8371
      4461 8397
TIME...MOT...LOC 0046Z 230DEG 51KT 4496 8378

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 8:19 PM EDTSevere Thunderstorm WarningAPXAlcona, Arenac, Gladwin, Iosco, Ogemaw, Oscoda and 1 more44 min
Oct 18, 8:38 PM EDTTornado WarningAPXAlcona, Alpena38 min
Oct 18, 8:39 PM EDTSevere Thunderstorm WarningAPXAntrim, Charlevoix, Kalkaska, Otsego66 min
Oct 18, 8:42 PM EDTSevere Thunderstorm WarningAPXAlpena, Montmorency33 min
Oct 18, 9:21 PM EDTSevere Thunderstorm WarningAPXCheboygan, Montmorency, Otsego, Presque Isle25 min
Oct 18, 9:23 PM EDTSevere Thunderstorm WarningAPXKalkaska, Missaukee, Wexford41 min
Oct 18, 9:32 PM EDTSevere Thunderstorm WarningAPXArenac, Gladwin, Iosco, Ogemaw, Roscommon58 min
Oct 18, 9:37 PM EDTSevere Thunderstorm WarningAPXAntrim, Crawford, Kalkaska, Otsego51 min
Oct 18, 10:09 PM EDTSevere Thunderstorm WarningAPXCheboygan, Otsego51 min
Oct 18, 10:25 PM EDTSevere Thunderstorm WarningAPXArenac, Gladwin, Iosco, Ogemaw65 min
Oct 18, 10:32 PM EDTSpecial Marine WarningAPX40 min
Oct 18, 11:10 PM EDTSevere Thunderstorm WarningAPXAlcona, Alpena, Iosco37 min
Oct 18, 11:17 PM EDTSpecial Marine WarningAPX54 min
Oct 19, 4:30 AM EDTWind AdvisoryAPXAntrim, Benzie, Emmet, Leelanau, Manistee16 hr

Nearby

Tornado Warnings in Michigan, 2007Every tornado warning in 2007Tornadoes in 2007

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.