Alert archive / Michigan / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 25, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jun 18, 2010, 8:39 PM EDT for Ingham County, Jackson County, Michigan. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 18, 2010, 8:39 PM EDT (00:39 UTC)
- Expired
- Jun 18, 2010, 9:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 75.0 mph
Counties Ingham County, MI, Jackson County, MI
The radar
The Detroit radar (KDTX), 82 km from the middle of the area, began a volume at 00:41 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 0.7 hours before the alert went out and 86 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
- 1272 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 1389 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 18, 7:55 PM EDT, 44 minutes earlier.
Area forecast discussion, Jun 18, 7:55 PM EDT, 44 minutes before
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HAZARDOUS WEATHER OUTLOOK...CORRECTED SPOTTER INFO SECTION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 445 PM EDT FRI JUN 18 2010 LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-191000- 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-MASON-LAKE- OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM- GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM- VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 445 PM EDT FRI JUN 18 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT SEVERE THUNDERSTORM WATCH NUMBER 0344 IS IN EFFECT UNTIL MIDNIGHT FOR AREAS SOUTH OF HIGHWAY 10. DAMAGING WINDS ARE THE MAIN THREAT. STORM MOTION WILL BE TO THE EAST AROUND 45 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS ARE POSSIBLE MUCH OF NEXT WEEK WITH THE HIGHEST CHANCES ON MONDAY AND AGAIN ON WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUIRED THIS EVENING FOR ALL OF SOUTHWEST LOWER MICHIGAN. SKYWARN LIKELY WILL NEED TO CONTINUE UNTIL AFTER MIDNIGHT AS ANOTHER ROUND OF STORMS MOVE EAST ACROSS THE AREA. TJT
In the hours before
Local storm report, Jun 18, 7:32 PM EDT, 1 hour 7 minutes before
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</html>Local storm report, Jun 18, 7:37 PM EDT, 1 hour 2 minutes before
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</html>Local storm report, Jun 18, 7:41 PM EDT, 58 minutes before
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</html>Local storm report, Jun 18, 7:46 PM EDT, 53 minutes before
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</html>Local storm report, Jun 18, 7:48 PM EDT, 51 minutes before
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</html>Local storm report, Jun 18, 7:53 PM EDT, 46 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 |
|---|---|---|---|---|
| Jun 18, 8:09 PM EDT | Areal Flood Advisory | GRR | Kalamazoo | 2 hr |
| Jun 18, 8:12 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun, Eaton, Ingham, Jackson | 63 min |
| Jun 18, 9:59 PM EDT | River Flood Watch | GRR | Allegan | 4 hr |
| Jun 19, 10:53 AM EDT | Small Craft Advisory | GRR | 5 hr |
Nearby
Severe Thunderstorm Warnings in Michigan, 2010Every severe thunderstorm warning in 2010
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.