Alert archive / Michigan / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 21, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jun 30, 2017, 8:30 PM EDT for Tuscola County, Michigan. It was in force for 37 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
- Jun 30, 2017, 8:30 PM EDT (00:30 UTC)
- Expired
- Jun 30, 2017, 9:07 PM EDT
- In force
- 37 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Tuscola County, MI
The radar
The Detroit radar (KDTX), 89 km from the middle of the area, began a volume at 00:30 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
Detroit, MI (KDTX), launched 00:00Z, 0.5 hours before the alert went out and 87 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
- 443 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.0
The text
As transmitted.
993
WUUS53 KDTX 010030
SVRDTX
MIC157-010130-
/O.NEW.KDTX.SV.W.0021.170701T0030Z-170701T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Detroit/Pontiac MI
830 PM EDT FRI JUN 30 2017
The National Weather Service in Detroit/Pontiac has issued a
* Severe Thunderstorm Warning for...
Western Tuscola County in southeastern Michigan...
* Until 930 PM EDT
* At 830 PM EDT, a severe thunderstorm was located near Vassar,
moving northeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near,
Fairgrove around 855 PM EDT.
Akron around 910 PM EDT.
Caro around 915 PM EDT.
Other locations impacted by this severe thunderstorm include Akron,
Vassar, Caro, Reese, Fairgrove, Tuscola, Colling, Gilford,
Watrousville and Richville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4367 8341 4334 8338 4329 8369 4352 8370
TIME...MOT...LOC 0030Z 224DEG 15KT 4342 8362
HAIL...1.00IN
WIND...60MPH
$$
SC2 follow-up statements
275
WWUS53 KDTX 010043
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
843 PM EDT FRI JUN 30 2017
MIC157-010130-
/O.CON.KDTX.SV.W.0021.000000T0000Z-170701T0130Z/
Tuscola MI-
843 PM EDT FRI JUN 30 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR NORTHWESTERN TUSCOLA COUNTY...
At 843 PM EDT, a severe thunderstorm was located near Fairgrove, or
near Akron, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Akron around 900 PM EDT.
Caro around 905 PM EDT.
Other locations impacted by this severe thunderstorm include Akron,
Caro, Fairgrove, Colling, Gilford, Watrousville and Vassar.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4367 8341 4342 8339 4337 8359 4354 8365
TIME...MOT...LOC 0043Z 227DEG 17KT 4347 8354
HAIL...1.00IN
WIND...60MPH
$$
SC235
WWUS53 KDTX 010107
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
907 PM EDT FRI JUN 30 2017
MIC157-010116-
/O.CAN.KDTX.SV.W.0021.000000T0000Z-170701T0130Z/
Tuscola MI-
907 PM EDT FRI JUN 30 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN TUSCOLA COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
LAT...LON 4367 8341 4342 8339 4337 8359 4354 8365
TIME...MOT...LOC 0105Z 224DEG 15KT 4354 8344
$$
SCThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:20 PM EDT | Special Weather Statement | DTX | Tuscola | 40 min |
| Jun 30, 11:47 PM EDT | Special Marine Warning | DTX | 88 min | |
| Jul 1, 12:26 PM EDT | Special Weather Statement | DTX | Livingston | 49 min |
| Jul 1, 12:29 PM EDT | Special Marine Warning | DTX | 61 min | |
| Jul 1, 1:08 PM EDT | Special Weather Statement | DTX | Oakland | 37 min |
| Jul 1, 1:49 PM EDT | Special Marine Warning | DTX | 56 min | |
| Jul 1, 2:12 PM EDT | Special Weather Statement | DTX | Macomb | 48 min |
| Jul 1, 2:44 PM EDT | Special Marine Warning | DTX | 31 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2017Every severe thunderstorm warning in 2017
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.