Alert archive / Michigan / Special Weather Statements in 2018
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Aug 9, 2018, 5:17 PM EDT for Jackson County, Michigan. It was in force for 28 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 9, 2018, 5:17 PM EDT (21:17 UTC)
- Expired
- Aug 9, 2018, 5:45 PM EDT
- In force
- 28 min
- Issued by
- NWS Grand Rapids, MI
County Jackson County, MI
The radar
The Detroit radar (KDTX), 98 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 102 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
- 4 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 991 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 9, 3:13 PM EDT, 2 hours 4 minutes earlier.
Area forecast discussion, Aug 9, 3:13 PM EDT, 2 hours 4 minutes before
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</html>Hazardous weather outlook, Aug 9, 4:34 AM EDT, 12 hours 43 minutes before
Hazardous Weather Outlook National Weather Service Grand Rapids MI 434 AM EDT Thu Aug 9 2018 MIZ037>040-043>046-050>052-056>059-064>067-071>074-100845- Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon- Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton- Ingham-Van Buren-Kalamazoo-Calhoun-Jackson- 434 AM EDT Thu Aug 9 2018 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight Thunderstorms will be possible, mainly this morning. Severe weather is not expected, but penny sized hail and winds of 40 mph are possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A few thunderstorms will be possible mainly during the afternoon and evening hours from Friday through Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not likely to be needed. LMZ844>849-100845- 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- 434 AM EDT Thu Aug 9 2018 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Today and Tonight Thunderstorms will be possible, mainly this morning. Severe weather is not expected, but penny sized hail and winds of 40 mph are possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A thunderstorm will be possible mainly during the afternoon and evening hours from Friday through Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not likely to be needed.
In the hours before
Local storm report, Aug 9, 12:05 PM EDT, 5 hours 12 minutes before
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</html>Special weather statement, Aug 9, 5:17 PM 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 |
|---|---|---|---|---|
| Aug 9, 3:58 AM EDT | Special Marine Warning | GRR | 73 min | |
| Aug 9, 4:05 AM EDT | Special Weather Statement | GRR | Lake, Mason | 85 min |
| Aug 9, 4:41 AM EDT | Special Marine Warning | GRR | 64 min | |
| Aug 9, 4:48 AM EDT | Special Weather Statement | GRR | Oceana | 57 min |
| Aug 9, 5:21 AM EDT | Special Marine Warning | GRR | 54 min | |
| Aug 9, 5:28 AM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Oceana | 24 min |
| Aug 9, 7:32 AM EDT | Special Weather Statement | GRR | Allegan | 58 min |
Nearby
Special Weather Statements in Michigan, 2018Every special weather statement in 2018
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.