Alert archive / Michigan / Special Weather Statements in 2021
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Jul 6, 2021, 12:40 AM EDT for Montcalm County, Michigan. It was in force for 65 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 6, 2021, 12:40 AM EDT (04:40 UTC)
- Expired
- Jul 6, 2021, 1:45 AM EDT
- In force
- 65 min
- Issued by
- NWS Grand Rapids, MI
County Montcalm County, MI
The radar
The Grand Rapids radar (KGRR), 57 km from the middle of the area, began a volume at 04:40 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, 4.7 hours before the alert went out and 169 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
- 1083 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1560 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
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 Grand Rapids, MI wrote its last area forecast discussion before this special weather statement went out at Jul 6, 12:36 AM EDT, 4 minutes earlier.
Area forecast discussion, Jul 6, 12:36 AM EDT, 4 minutes before
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</html>Hazardous weather outlook, Jul 5, 5:13 PM EDT, 7 hours 27 minutes before
Hazardous Weather Outlook National Weather Service Grand Rapids MI 513 pM EDT Mon Jul 5 2021 MIZ037>040-043>046-050>052-056>059-064>067-071>074-060815- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 513 pM EDT Mon Jul 5 2021 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...This Evening and Tonight Scattered thunderstorms may develop in Central and Western Michigan this evening and linger into tonight. An isolated severe thunderstorm with large hail or damaging wind gusts cannot be ruled out. Waves and currents on Lake Michigan will pose a moderate to high risk to swimmers into this evening, mainly north of Grand Haven toward Ludington. Strong currents can pull swimmers into deeper water. These currents can occur along any beach but will most frequently occur near south piers today. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Occasional thunderstorms are possible Tuesday night into Wednesday and again Friday or Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report local severe weather to the National Weather Service via phone, amateur radio networks, or social media. LMZ844>849-060815- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI- 412 AM EDT Mon Jul 5 2021 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...This Evening and Tonight Scattered thunderstorms may develop in Central and Western Michigan and over Lake Michigan this evening and linger into tonight. An isolated severe thunderstorm with large hail or damaging wind gusts cannot be ruled out. Winds and waves on Lake Michigan will be a hazard to small craft mainly near and north of Grand Haven. Waves and currents will pose a moderate to high risk to swimmers into this evening, mainly north of Grand Haven toward Ludington. Strong currents can pull swimmers into deeper water. These currents can occur along any beach but will most frequently occur near south piers today. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Occasional thunderstorms are possible Tuesday night into Wednesday and again Friday or Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report local severe weather to the National Weather Service via phone, amateur radio networks, or social media.
In the hours before
Special weather statement, Jul 5, 11:26 PM EDT, 1 hour 14 minutes before
Special Weather Statement National Weather Service Grand Rapids MI 1126 PM EDT Mon Jul 5 2021 MIZ038>040-060430- Osceola-Lake-Clare- 1126 PM EDT Mon Jul 5 2021 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CLARE...OSCEOLA AND NORTHEASTERN LAKE COUNTIES... At 1126 PM EDT, radar indicated strong thunderstorms were located along a line extending from near Vogel Center to 5 miles southeast of Hoxeyville. Movement was southeast at 40 mph. Winds in excess of 40 mph are possible with these storms. Locations impacted include... Clare... Evart... Reed City... Marion... Farwell... Luther... Harrison... Highland... Lake... Hersey... Le Roy... Tustin... Lake George... Ashton... Bristol... Avondale... Sears... Temple... Long Lake... Dighton... If outdoors, consider seeking shelter inside a building. LAT...LON 4416 8461 4382 8461 4382 8550 4416 8580 TIME...MOT...LOC 0326Z 309DEG 33KT 4415 8503 4412 8563 MJS
Special weather statement, Jul 6, 12:05 AM EDT, 35 minutes before
Special Weather Statement
National Weather Service Grand Rapids MI
1205 AM EDT Tue Jul 6 2021
MIZ038-043>045-060530-
Oceana-Lake-Mecosta-Newaygo-
1205 AM EDT Tue Jul 6 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NEWAYGO...SOUTHEASTERN
LAKE...MECOSTA AND EASTERN OCEANA COUNTIES...
At 1204 AM EDT, radar indicated strong thunderstorms were located
along a line extending from near Baldwin to 6 miles east of Hart.
Movement was east at 20 mph.
Winds in excess of 40 mph are possible with these storms.
Locations impacted include...
Big Rapids... Hart... White Cloud...
Fremont... Hesperia... Morley...
Mecosta... Canadian Lakes... Remus...
Elbridge... Colfax... Paris...
Barryton... Walkerville... Stanwood...
Brohman... Sylvester... Chippewa Lake...
Woodland Park... Rodney...
LAT...LON 4388 8573 4386 8556 4382 8556 4382 8524
4380 8511 4347 8509 4347 8606 4369 8636
TIME...MOT...LOC 0404Z 285DEG 19KT 4387 8576 4372 8624
MJSSpecial weather statement, Jul 6, 12:40 AM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 11:26 PM EDT | Special Weather Statement | GRR | Clare, Osceola | 64 min |
| Jul 6, 12:05 AM EDT | Special Weather Statement | GRR | Mecosta, Newaygo | 85 min |
| Jul 6, 2:37 AM EDT | Special Marine Warning | GRR | 38 min | |
| Jul 6, 4:10 PM EDT | Special Weather Statement | GRR | Mecosta, Osceola | 65 min |
| Jul 6, 4:26 PM EDT | Special Weather Statement | GRR | Gratiot | 64 min |
| Jul 6, 6:00 PM EDT | Special Weather Statement | GRR | Gratiot | 45 min |
| Jul 6, 6:06 PM EDT | Small Craft Advisory | GRR | 9 hr | |
| Jul 6, 6:26 PM EDT | Areal Flood Advisory | GRR | Mecosta, Newaygo | 3 hr |
| Jul 6, 6:44 PM EDT | Special Marine Warning | GRR | 61 min | |
| Jul 6, 7:01 PM EDT | Special Weather Statement | GRR | Mason | 44 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.