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 24, 2021, 12:30 PM EDT for Clare County, Lake County, Osceola County, Michigan. It was in force for 60 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 24, 2021, 12:30 PM EDT (16:30 UTC)
- Expired
- Jul 24, 2021, 1:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Grand Rapids, MI
Counties Clare County, MI, Lake County, MI, Osceola County, MI
The radar
The NCL Michigan radar (KAPX), 105 km from the middle of the area, began a volume at 16:30 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 12:00Z, 4.5 hours before the alert went out and 203 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
- 588 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 557 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
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 24, 12:22 PM EDT, 8 minutes earlier.
Area forecast discussion, Jul 24, 12:22 PM EDT, 8 minutes before
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</html>Hazardous weather outlook, Jul 24, 4:55 AM EDT, 7 hours 35 minutes before
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</html>In the hours before
Special weather statement, Jul 24, 12:30 PM EDT, 0 minutes before
Special Weather Statement National Weather Service Grand Rapids MI 1230 PM EDT Sat Jul 24 2021 MIZ038>040-241730- Osceola-Lake-Clare- 1230 PM EDT Sat Jul 24 2021 ...A DEVELOPING LINE OF SHOWERS OR THUNDERSTORMS WILL AFFECT CLARE...OSCEOLA... AND LAKE COUNTIES... At 1230 PM EDT, radar indicated showers with heavy downpours located along a line extending from Irons to Baldwin. Movement was east at 45 mph. Winds in excess of 40 mph are possible as these showers organize and strengthen while moving east. Lightning strikes may also become possible if the showers develop into thunderstorms. Locations impacted include... Clare... Evart... Baldwin... Reed City... Marion... Farwell... Luther... Harrison... Highland... Chase... Lake... Hersey... Le Roy... Tustin... Nirvana... Idlewild... Lake George... Ashton... Bristol... Avondale... Be prepared to move to shelter when the showers or storms approach. LAT...LON 4416 8461 4382 8461 4381 8603 4417 8604 TIME...MOT...LOC 1623Z 274DEG 44KT 4417 8594 4384 8605 CAS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 2:58 PM EDT | Severe Thunderstorm Warning | GRR | Clare | 32 min |
| Jul 24, 4:38 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot | 52 min |
| Jul 24, 5:50 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kent, Ottawa | 55 min |
| Jul 24, 6:58 PM EDT | Severe Thunderstorm Warning | GRR | Clinton, Eaton, Ingham | 62 min |
| Jul 24, 7:17 PM EDT | Severe Thunderstorm Warning | GRR | Eaton, Ingham | 43 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.