Alert archive / Michigan / Special Weather Statements in 2019
Special Weather Statement, NWS Detroit, MI
NWS Detroit, MI issued this special weather statement at Aug 20, 2019, 6:21 PM EDT for Saginaw County, Michigan. It was in force for 84 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
- Aug 20, 2019, 6:21 PM EDT (22:21 UTC)
- Expired
- Aug 20, 2019, 7:45 PM EDT
- In force
- 84 min
- Issued by
- NWS Detroit, MI
County Saginaw County, MI
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 10.4 hours before the alert went out and 91 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
- 1415 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.1
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 Aug 20, 3:37 PM EDT, 2 hours 44 minutes earlier.
Area forecast discussion, Aug 20, 3:37 PM EDT, 2 hours 44 minutes before
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</html>Hazardous weather outlook, Aug 20, 3:42 PM EDT, 2 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 342 PM EDT Tue Aug 20 2019 MIZ047>049-053>055-060>063-068>070-075-076-082-083-211945- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 342 PM EDT Tue Aug 20 2019 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...This Afternoon and Tonight There is a continued chance of thunderstorms this evening. Isolated storms may be strong to severe. The strongest storms will be capable of producing damaging wind gusts up to 60 mph and hail up to 1 inch. Storms will move west to east at about 20 mph. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms on Wednesday as a cold front is forecast to move across the region. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-211945- 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- 342 PM EDT Tue Aug 20 2019 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...This Afternoon and Tonight There is a continued chance of thunderstorms this evening. Isolated storms may be strong to severe. The strongest storms will be capable of producing damaging wind gusts up to 60 mph and hail up to 1 inch. Storms will move west to east at about 20 mph. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms on Wednesday as a cold front is forecast to move across the region. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. AM
In the hours before
Special weather statement, Aug 20, 2:21 PM EDT, 4 hours before
Special Weather Statement National Weather Service Detroit/Pontiac MI 221 PM EDT Tue Aug 20 2019 MIZ060-201845- Shiawassee MI- 221 PM EDT Tue Aug 20 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SHIAWASSEE COUNTY UNTIL 245 PM EDT... At 221 PM EDT, Doppler radar was tracking a strong thunderstorm near Elsie, or 7 miles north of Laingsburg, moving east at 15 mph. Half inch hail and wind gusts up to 50 mph will be possible with this storm. This strong thunderstorm will be near... Owosso, Corunna and Henderson around 245 PM EDT. LAT...LON 4313 8437 4313 8393 4289 8393 4288 8436 TIME...MOT...LOC 1821Z 271DEG 12KT 4300 8435 SF
Special weather statement, Aug 20, 2:53 PM EDT, 3 hours 28 minutes before
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</html>Special weather statement, Aug 20, 6:21 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Detroit/Pontiac MI
Issued by National Weather Service Grand Rapids MI
621 PM EDT Tue Aug 20 2019
MIZ053-202345-
Saginaw MI-
621 PM EDT Tue Aug 20 2019
...SIGNIFICANT WEATHER ADVISORY FOR SAGINAW COUNTY UNTIL 745 PM
EDT...
At 620 PM EDT, Doppler radar indicated a strong thunderstorm near
Merrill, or 11 miles northwest of St. Charles, moving east at 15 mph.
Dime size hail and wind gusts up to 50 mph will be possible with this
storm.
This strong thunderstorm will be near...
Merrill around 625 PM EDT.
St. Charles around 705 PM EDT.
Saginaw and Bridgeport around 745 PM EDT.
Other locations impacted by this storm include Brant, Nelson,
Carrollton, Garfield, Arthur, Fenmore, Burt, Buena Vista Township,
Gera and Layton Corners.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
LAT...LON 4348 8437 4348 8417 4357 8417 4357 8405
4353 8405 4352 8382 4348 8381 4348 8370
4322 8370 4322 8393 4313 8393 4313 8437
TIME...MOT...LOC 2220Z 268DEG 13KT 4336 8436
TJTThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:21 PM EDT | Special Weather Statement | DTX | Shiawassee | 24 min |
| Aug 20, 2:53 PM EDT | Special Weather Statement | DTX | Huron | 37 min |
| Aug 20, 3:03 PM EDT | Special Marine Warning | DTX | 87 min | |
| Aug 20, 5:36 PM EDT | Special Marine Warning | DTX | 54 min | |
| Aug 20, 5:44 PM EDT | Special Weather Statement | DTX | Genesee | 61 min |
| Aug 20, 6:45 PM EDT | Special Weather Statement | DTX | Genesee, Shiawassee | 90 min |
| Aug 20, 6:54 PM EDT | Special Weather Statement | DTX | Oakland | 66 min |
| Aug 20, 7:38 PM EDT | Special Weather Statement | DTX | Oakland | 52 min |
Nearby
Special Weather Statements in Michigan, 2019Every special weather statement in 2019
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.