Alert archive / Michigan / Tornado Warnings in 2014

Tornado Warning 2, NWS Detroit, MI

May 12, 2014Washtenaw County, Michigan

NWS Detroit, MI issued this tornado warning at May 12, 2014, 3:48 PM EDT for Washtenaw County, Michigan. It was in force for 57 min. 2 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: May 12, 2014, 3:48 PM EDT (19:48 UTC)
Expired: May 12, 2014, 4:45 PM EDT
In force: 57 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Washtenaw County, MI

The radar

The Detroit radar (KDTX), 63 km from the middle of the area, began a volume at 19:50 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
May 12, 4:29 PM EDT	HAIL 0.5	2 W Willis, MI
May 12, 4:42 PM EDT	HAIL 0.75	Ypsilanti, MI

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.

Issued	Product	Office	Lasted
May 12, 2:41 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.8 hours before the alert went out and 67 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: 1025 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 117 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.

114 
WFUS53 KDTX 121948
TORDTX
MIC161-122045-
/O.NEW.KDTX.TO.W.0002.140512T1948Z-140512T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
348 PM EDT MON MAY 12 2014

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  WASHTENAW COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 445 PM EDT

* AT 346 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A   
TORNADO WAS LOCATED NEAR MILAN...AND MOVING EAST AT 30 MPH. A SECOND 
STORM CAPABLE OF PRODUCING A TORNADO IS NEAR CHELSEA.

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

  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.

* THIS DANGEROUS STORM WILL BE NEAR...
  WHITTAKER AROUND 400 PM EDT.
  WILLIS AROUND 405 PM EDT.

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 4233 8414 4232 8354 4209 8354 4207 8413
TIME...MOT...LOC 1949Z 263DEG 26KT 4211 8369

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BEHNKE

5 follow-up statements

526 
WWUS53 KDTX 121956
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
356 PM EDT MON MAY 12 2014

MIC161-122045-
/O.CON.KDTX.TO.W.0002.000000T0000Z-140512T2045Z/
WASHTENAW MI-
356 PM EDT MON MAY 12 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WASHTENAW COUNTY UNTIL 445
PM EDT...

AT 354 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR MILAN...AND MOVING EAST AT 30 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

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.

THIS DANGEROUS STORM WILL BE NEAR...
  WILLIS AROUND 405 PM EDT.

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 4233 8414 4232 8354 4209 8354 4207 8413
TIME...MOT...LOC 1957Z 255DEG 24KT 4213 8363

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MR

993 
WWUS53 KDTX 122003
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 PM EDT MON MAY 12 2014

MIC161-122045-
/O.CON.KDTX.TO.W.0002.000000T0000Z-140512T2045Z/
WASHTENAW MI-
403 PM EDT MON MAY 12 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WASHTENAW COUNTY UNTIL 445
PM EDT...

AT 359 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR WHITTAKER...AND MOVING EAST AT 20 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

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.

THIS DANGEROUS STORM WILL BE NEAR...
  WILLIS AROUND 410 PM EDT.

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 4233 8414 4232 8354 4209 8354 4207 8413
TIME...MOT...LOC 2003Z 254DEG 19KT 4213 8361

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MR

440 
WWUS53 KDTX 122011
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
411 PM EDT MON MAY 12 2014

MIC161-122045-
/O.CON.KDTX.TO.W.0002.000000T0000Z-140512T2045Z/
WASHTENAW MI-
411 PM EDT MON MAY 12 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR WASHTENAW COUNTY UNTIL 445
PM EDT...

AT 407 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WILLIS...AND MOVING EAST AT 20 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

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.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WASHTENAW
COUNTY.

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 4233 8414 4232 8354 4209 8354 4207 8413
TIME...MOT...LOC 2012Z 249DEG 16KT 4215 8358

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MR

328 
WWUS53 KDTX 122024
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
424 PM EDT MON MAY 12 2014

MIC161-122045-
/O.CON.KDTX.TO.W.0002.000000T0000Z-140512T2045Z/
WASHTENAW MI-
424 PM EDT MON MAY 12 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN WASHTENAW COUNTY
UNTIL 445 PM EDT...

AT 420 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SALINE...AND MOVING NORTHEAST AT 30 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

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...
  WILLIS...             DIXBORO...            YPSILANTI...
  SALINE...             MILAN...              CHELSEA...
  ANN ARBOR...

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 4233 8414 4232 8354 4209 8354 4208 8377
      4218 8414
TIME...MOT...LOC 2024Z 243DEG 24KT 4217 8379

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MR

349 
WWUS53 KDTX 122037
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
437 PM EDT MON MAY 12 2014

MIC161-122045-
/O.CON.KDTX.TO.W.0002.000000T0000Z-140512T2045Z/
WASHTENAW MI-
437 PM EDT MON MAY 12 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN WASHTENAW COUNTY
UNTIL 445 PM EDT...

AT 433 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SALINE...AND MOVING NORTHEAST AT 30 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

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...
  WILLIS...             DIXBORO...            YPSILANTI...
  SALINE...             CHELSEA...            ANN ARBOR...

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 4233 8414 4232 8354 4209 8354 4209 8363
      4214 8387 4225 8413
TIME...MOT...LOC 2038Z 243DEG 24KT 4221 8368

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 1:09 PM EDT	Areal Flood Advisory	DTX	Shiawassee	6 hr
May 12, 3:02 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Washtenaw	58 min
May 12, 3:18 PM EDT	Tornado Warning	DTX	Livingston, Washtenaw	57 min
May 12, 3:36 PM EDT	Areal Flood Advisory	DTX	Genesee, Livingston, Oakland	6 hr
May 12, 4:05 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Monroe	55 min
May 12, 4:14 PM EDT	Tornado Warning	DTX	Livingston, Washtenaw	46 min
May 12, 4:28 PM EDT	Tornado Warning	DTX	Monroe, Wayne	62 min
May 12, 4:33 PM EDT	Flash Flood Warning	DTX	Genesee, Livingston, Oakland, Shiawassee	6 hr
May 12, 4:55 PM EDT	Tornado Warning	DTX	Monroe	65 min
May 12, 5:35 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	55 min
May 12, 5:57 PM EDT	Areal Flood Advisory	DTX	Livingston	6 hr

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.