Alert archive / Michigan / Tornado Warnings in 2009
Tornado Warning 1, NWS Gaylord, MI
NWS Gaylord, MI issued this tornado warning at Aug 9, 2009, 5:11 PM EDT for Alcona County, Alpena County, Michigan. It was in force for 33 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
- Aug 9, 2009, 5:11 PM EDT (21:11 UTC)
- Expired
- Aug 9, 2009, 5:44 PM EDT
- In force
- 33 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
Counties Alcona County, MI, Alpena County, MI
The radar
The NCL Michigan radar (KAPX), 105 km from the middle of the area, began a volume at 21:12 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 9, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 9.2 hours before the alert went out and 82 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.
- Mixed-layer CAPE
- 1125 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 524 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KAPX 092111
TORAPX
MIC001-007-092200-
/O.NEW.KAPX.TO.W.0001.090809T2111Z-090809T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
511 PM EDT SUN AUG 9 2009
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* TORNADO WARNING FOR...
ALCONA COUNTY IN NORTHERN LOWER MICHIGAN...
ALPENA COUNTY IN NORTHERN LOWER MICHIGAN...
* UNTIL 600 PM EDT
* AT 510 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR THE TOWN OF HUBBARD LAKE...MOVING EAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
SPRUCE...
OSSINEKE...
NEGWEGON STATE PARK...
BLACK RIVER...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
&&
LAT...LON 4477 8330 4481 8373 4493 8371 4493 8340
4490 8336 4490 8332 4489 8331 4486 8331
4483 8329 4478 8329
TIME...MOT...LOC 2111Z 275DEG 20KT 4485 8359
$$
JZ3 follow-up statements
000
WWUS34 KAPX 092122
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
522 PM EDT SUN AUG 9 2009
MIC001-007-092200-
/O.CON.KAPX.TO.W.0001.000000T0000Z-090809T2200Z/
ALCONA MI-ALPENA MI-
522 PM EDT SUN AUG 9 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR ALPENA
AND ALCONA COUNTIES...
AT 521 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
STORM WAS LOCATED NEAR SPRUCE...OR 6 MILES SOUTH OF OSSINEKE...MOVING
EAST AT 30 MPH.
* THIS STORM WILL BE NEAR...
BLACK RIVER AND NEGWEGON STATE PARK AROUND 535 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
&&
LAT...LON 4477 8330 4480 8366 4492 8359 4491 8338
4491 8337 4490 8336 4490 8332 4489 8331
4486 8331 4483 8329 4478 8329
TIME...MOT...LOC 2122Z 282DEG 25KT 4482 8344
$$
JZ000
WWUS34 KAPX 092133
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
533 PM EDT SUN AUG 9 2009
MIC001-007-092200-
/O.CON.KAPX.TO.W.0001.000000T0000Z-090809T2200Z/
ALCONA MI-ALPENA MI-
533 PM EDT SUN AUG 9 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR ALPENA
AND ALCONA COUNTIES...
AT 533 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
STORM WAS LOCATED NEAR BLACK RIVER...OR 7 MILES SOUTHEAST OF
OSSINEKE...MOVING EAST AT 25 MPH.
* THIS STORM WILL BE NEAR...
BLACK RIVER AND NEGWEGON STATE PARK AROUND 540 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
&&
LAT...LON 4477 8330 4479 8356 4489 8347 4488 8340
4486 8331 4483 8329 4478 8329
TIME...MOT...LOC 2133Z 281DEG 23KT 4481 8337
$$
JZ000
WWUS34 KAPX 092144
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
544 PM EDT SUN AUG 9 2009
MIC001-007-092154-
/O.CAN.KAPX.TO.W.0001.000000T0000Z-090809T2200Z/
ALCONA MI-ALPENA MI-
544 PM EDT SUN AUG 9 2009
...THE TORNADO WARNING FOR ALPENA AND ALCONA COUNTIES IS CANCELLED...
AT 544 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM WHICH PROMPTED THE TORNADO WARNING HAS WEAKENED AND EXITED
THE AREA. THE WARNING HAS THEREFORE BEEN CANCELLED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT...AND CONDITIONS REMAIN
FAVORABLE FOR THE DEVELOPMENT OF SEVERE WEATHER IN AND NEAR THE WATCH
AREA. REMAIN PREPARED TO TAKE ACTION IF SEVERE WEATHER APPROACHES.
LAT...LON 4477 8330 4479 8356 4489 8347 4488 8340
4486 8331 4483 8329 4478 8329
TIME...MOT...LOC 2144Z 281DEG 23KT 4479 8327
$$
JZThe office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:28 AM EDT | Special Marine Warning | APX | 82 min | |
| Aug 9, 3:31 PM EDT | Special Marine Warning | APX | 119 min | |
| Aug 9, 3:38 PM EDT | Severe Thunderstorm Warning | APX | Presque Isle | 67 min |
| Aug 9, 4:00 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Montmorency | 45 min |
| Aug 9, 5:17 PM EDT | Special Marine Warning | APX | 99 min |
Nearby
Tornado Warnings in Michigan, 2009Every tornado warning in 2009Tornadoes in 2009
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.