Alert archive / Michigan / Tornado Warnings in 2007
Tornado Warning 7, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Jul 19, 2007, 3:39 PM EDT for Washtenaw County, Michigan. It was in force for 15 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
- Jul 19, 2007, 3:39 PM EDT (19:39 UTC)
- Expired
- Jul 19, 2007, 3:54 PM EDT
- In force
- 15 min
- Issued by
- NWS Detroit, MI
- Area
- Counties, with a storm outline in the text
County Washtenaw County, MI
The radar
The Detroit radar (KDTX), 38 km from the middle of the area, began a volume at 19:39 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 |
|---|---|---|---|
| Jul 19, 4:00 PM EDT | TSTM WND DMG | Whitmore Lake, MI | NUMEROUS REPORTS OF LARGE TREES AND POWER LINES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.7 hours before the alert went out and 41 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
- 270 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDTX 191938 TORDTX MIC161-192015- /O.NEW.KDTX.TO.W.0007.070719T1939Z-070719T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 339 PM EDT THU JUL 19 2007 THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A * TORNADO WARNING FOR... WASHTENAW COUNTY IN SOUTHEAST MICHIGAN * UNTIL 415 PM EDT * AT 335 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR WHITMORE LAKE...OR ABOUT 12 MILES NORTH OF ANN ARBOR...MOVING SOUTHEAST AT 50 MPH. * THE TORNADO WILL BE NEAR... SALEM AND DIXBORO BY 345 PM EDT... IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. THIS STORM IS ALSO CAPABLE OF PRODUCING WIND GUSTS OVER 65 MPH AND HAIL GREATER THAN ONE INCH IN DIAMETER. LAT...LON 4244 8356 4243 8385 4221 8354 $$ MANN /
2 follow-up statements
000 WWUS53 KDTX 191945 SVSDTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 345 PM EDT THU JUL 19 2007 MIC161-192015- /O.CON.KDTX.TO.W.0007.000000T0000Z-070719T2015Z/ WASHTENAW MI- 345 PM EDT THU JUL 19 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR WASHTENAW COUNTY... AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR SALEM...OR ABOUT 9 MILES NORTHEAST OF ANN ARBOR...MOVING SOUTHEAST AT 45 MPH. THIS STORM IS ALSO CAPABLE OF PRODUCING WIND GUSTS OVER 70 MPH AND HAIL GREATER THAN ONE INCH IN DIAMETER. LAT...LON 4244 8356 4243 8385 4221 8354 $$ MANN
000 WWUS53 KDTX 191954 SVSDTX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 354 PM EDT THU JUL 19 2007 MIC161-192004- /O.CAN.KDTX.TO.W.0007.000000T0000Z-070719T2015Z/ WASHTENAW MI- 354 PM EDT THU JUL 19 2007 ...THE TORNADO WARNING FOR WASHTENAW COUNTY IS CANCELLED... NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE COUNTY. IF YOU CAN HEAR THUNDER OR SEE LIGHTNING...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING...EVEN IF THE SKY ABOVE YOU IS BLUE. WHEN A THUNDERSTORM APPROACHES...MOVE TO A PLACE OF SAFETY. LAT...LON 4244 8356 4243 8385 4221 8354 $$ MANN
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 3:10 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 35 min |
| Jul 19, 3:25 PM EDT | Severe Thunderstorm Warning | DTX | Washtenaw | 34 min |
| Jul 19, 3:33 PM EDT | Severe Thunderstorm Warning | DTX | Oakland | 42 min |
| Jul 19, 3:42 PM EDT | Special Marine Warning | DTX | 63 min | |
| Jul 19, 3:50 PM EDT | Severe Thunderstorm Warning | DTX | Wayne | 44 min |
| Jul 19, 4:43 PM EDT | Special Marine Warning | DTX | 21 min | |
| Jul 19, 5:29 PM EDT | Special Marine Warning | DTX | 63 min |
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.