Alert archive / Michigan / Special Weather Statements in 2021
Special Weather Statement, NWS Detroit, MI
NWS Detroit, MI issued this special weather statement at Jul 7, 2021, 9:21 PM EDT for Huron County, Michigan. It was in force for 39 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
- Jul 7, 2021, 9:21 PM EDT (01:21 UTC)
- Expired
- Jul 7, 2021, 10:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Detroit, MI
County Huron County, MI
The radar
The Detroit radar (KDTX), 138 km from the middle of the area, began a volume at 01:24 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, 1.4 hours before the alert went out and 136 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
- 594 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
The text
As transmitted.
039
WWUS83 KDTX 080121
SPSDTX
Special Weather Statement
National Weather Service Detroit/Pontiac MI
921 PM EDT Wed Jul 7 2021
MIZ049-080200-
Huron-
921 PM EDT Wed Jul 7 2021
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN HURON COUNTY...
At 921 PM EDT, a strong thunderstorm was located near Caseville,
moving east at 20 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
This storm will be near...
Caseville around 935 PM EDT.
Pigeon around 940 PM EDT.
Elkton around 955 PM EDT.
Other locations impacted by this storm include Pinnebog and Bay Port.
If outdoors, consider seeking shelter inside a building.
LAT...LON 4400 8305 4380 8318 4385 8341 4394 8338
4395 8334 4399 8329
TIME...MOT...LOC 0121Z 281DEG 18KT 4394 8338
$$
SCThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 9:10 PM EDT | Special Marine Warning | DTX | 35 min | |
| Jul 8, 3:13 AM EDT | Special Weather Statement | DTX | Shiawassee | 47 min |
| Jul 8, 4:46 AM EDT | Special Weather Statement | DTX | Washtenaw | 44 min |
| Jul 8, 5:37 AM EDT | Special Weather Statement | DTX | Oakland | 38 min |
| Jul 8, 8:43 AM EDT | Special Weather Statement | DTX | Livingston | 47 min |
| Jul 8, 2:59 PM EDT | Special Weather Statement | DTX | Wayne | 46 min |
| Jul 8, 3:13 PM EDT | Special Weather Statement | DTX | Monroe | 62 min |
| Jul 8, 3:29 PM EDT | Special Weather Statement | DTX | Oakland | 76 min |
| Jul 8, 3:56 PM EDT | Special Marine Warning | DTX | 34 min | |
| Jul 8, 4:34 PM EDT | Special Weather Statement | DTX | Wayne | 26 min |
| Jul 8, 4:44 PM EDT | Severe Thunderstorm Warning | DTX | Macomb, Wayne | 31 min |
| Jul 8, 4:46 PM EDT | Special Marine Warning | DTX | 59 min | |
| Jul 8, 5:08 PM EDT | Special Weather Statement | DTX | Wayne | 37 min |
| Jul 8, 6:53 PM EDT | Areal Flood Advisory | DTX | Wayne | 112 min |
Nearby
Special Weather Statements in Michigan, 2021Every special weather statement in 2021
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.