Alert archive / Michigan / Special Weather Statements in 2021
Special Weather Statement, NWS Detroit, MI
NWS Detroit, MI issued this special weather statement at Jul 29, 2021, 4:52 AM EDT for Huron County, Michigan. It was in force for 53 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 29, 2021, 4:52 AM EDT (08:52 UTC)
- Expired
- Jul 29, 2021, 5:45 AM EDT
- In force
- 53 min
- Issued by
- NWS Detroit, MI
County Huron County, MI
The radar
The Detroit radar (KDTX), 131 km from the middle of the area, began a volume at 08:52 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, 8.9 hours before the alert went out and 128 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
- 219 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1416 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Detroit, MI wrote its last area forecast discussion before this special weather statement went out at Jul 29, 4:06 AM EDT, 46 minutes earlier.
Area forecast discussion, Jul 29, 4:06 AM EDT, 46 minutes before
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<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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</html>Hazardous weather outlook, Jul 29, 4:24 AM EDT, 28 minutes before
Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 424 AM EDT Thu Jul 29 2021 MIZ047>049-053>055-060>063-300830- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair- 424 AM EDT Thu Jul 29 2021 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...Today and Tonight There is a chance of thunderstorms with a marginal to slight risk of severe weather associated with an organized complex of thunderstorms moving through Lower Michigan this morning. This complex will be moving northwest to southeast at 40 mph. Damaging wind gusts in excess of 60 mph and heavy rainfall will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed this morning due to scattered nature of the wind threat, but any flooding and heavy rain reports are much appreciated. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-300830- Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 424 AM EDT Thu Jul 29 2021 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...Today and Tonight There is a chance of thunderstorms with a marginal to slight risk of severe weather associated with an organized complex of thunderstorms moving through Lower Michigan this morning. This complex will be moving northwest to southeast at 35 knots. Damaging wind gusts in excess of 60 mph and heavy rainfall will be possible. This will mainly affect marine zones from southern Lake Huron to western Lake Erie with the greatest wind threat towards Lake St. Clair and western Lake Erie. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed this morning due to scattered nature of the wind threat, but any flooding and heavy rain reports are much appreciated. MIZ068>070-075-076-082-083-300830- Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 424 AM EDT Thu Jul 29 2021 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...Today and Tonight A Flash Flood Watch remains is in effect until 10 AM Thursday. There is a chance of thunderstorms with a marginal to slight risk of severe weather associated with an organized complex of thunderstorms moving through Lower Michigan this morning. This complex will be moving northwest to southeast at 40 mph. Damaging wind gusts in excess of 60 mph and heavy rainfall will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed this morning due to scattered nature of the wind threat, but any flooding and heavy rain reports are much appreciated. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. AA
In the hours before
Special weather statement, Jul 29, 4:52 AM EDT, 0 minutes before
Special Weather Statement
National Weather Service Detroit/Pontiac MI
452 AM EDT Thu Jul 29 2021
MIZ049-054-290945-
Huron MI-Tuscola MI-
452 AM EDT Thu Jul 29 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN TUSCOLA AND HURON
COUNTIES UNTIL 545 AM EDT...
At 451 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles northwest of Port Austin to 7 miles
northwest of Pigeon to Essexville. Movement was east at 40 mph.
Winds in excess of 40 mph will be possible with these storms.
Strong thunderstorms will be near...
Caseville and Pigeon around 500 AM EDT.
Port Austin around 505 AM EDT.
Elkton and Quanicassee around 510 AM EDT.
Akron and Unionville around 520 AM EDT.
Bad Axe around 525 AM EDT.
Ubly and Port Hope around 530 AM EDT.
Cass City and Harbor Beach around 545 AM EDT.
Other locations impacted by these storms include Redman, Parisville,
Colling, Huron City, White Rock, Wisner, Ivanhoe, Rapson, Grindstone
City and Bay Port.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4407 8286 4401 8272 4384 8259 4371 8257
4369 8260 4368 8311 4357 8312 4356 8370
4363 8369 4378 8349 4387 8349 4393 8344
4395 8334 4400 8328 4403 8310 4407 8305
TIME...MOT...LOC 0851Z 281DEG 35KT 4410 8316 4387 8340 4362 8387
BehnkeThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 5:11 AM EDT | Special Weather Statement | DTX | Sanilac, Tuscola | 64 min |
| Jul 29, 5:36 AM EDT | Special Marine Warning | DTX | 84 min | |
| Jul 29, 9:58 AM EDT | Small Craft Advisory | DTX | 34 hr | |
| Jul 29, 12:24 PM EDT | Beach Hazards Statement | DTX | Huron, Saint Clair, Sanilac | 32 hr |
| Jul 29, 6:37 PM EDT | Special Weather Statement | DTX | Lapeer | 38 min |
| Jul 29, 7:58 PM EDT | Special Weather Statement | DTX | Macomb | 47 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.