Alert archive / Michigan / Heat Advisories in 2012
Heat Advisory 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this heat advisory at Jun 27, 2012, 3:20 PM EDT for 23 counties in Michigan. It took effect at Jun 28, 2012, 12:00 PM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jun 27, 2012, 3:20 PM EDT (19:20 UTC)
- In effect from
- Jun 28, 2012, 12:00 PM EDT
- Expired
- Jun 28, 2012, 9:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Grand Rapids, MI
All 23 counties
Allegan County, MI, Barry County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 27 km from the middle of the area, began a volume at 19:19 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, 7.3 hours before the alert went out and 165 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2007 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory 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 heat advisory went out at Jun 27, 1:30 PM EDT, 1 hour 50 minutes earlier.
Area forecast discussion, Jun 27, 1:30 PM EDT, 1 hour 50 minutes before
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</html>Hazardous weather outlook, Jun 27, 10:54 AM EDT, 4 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1054 AM EDT WED JUN 27 2012 MIZ037>040-043>046-050>052-056>059-064>067-071>074-280945- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 1054 AM EDT WED JUN 27 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT FIRE DANGER WILL BECOME VERY ELEVATED THIS AFTERNOON AND EVENING WITH VERY WARM...DRY AND BREEZY CONDITIONS. THE HIGHEST FIRE DANGER WILL BE NORTHWEST OF A LINE FROM HOLLAND TO REED CITY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NEAR RECORD TEMPERATURES WELL INTO THE 90S ARE EXPECTED ON THURSDAY. HEAT INDEX VALUES AWAY FROM LAKE MICHIGAN MAY PUSH TOWARDS 100 DEGREES. THUNDERSTORMS ARE POSSIBLE THURSDAY AFTERNOON AND EVENING IN THE HOT AND HUMID AIR MASS. THUNDERSTORM PROBABILITIES OVERALL ARE LOW...BUT IF STORMS DO DEVELOP SEVERE WEATHER IS A THREAT. FIRE DANGER WILL LIKELY REMAIN ELEVATED INTO NEXT WEEK AS A PERSISTENT HOT AND DRY PATTERN IS FORECAST TO CONTINUE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. LMZ844>849-280945- 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- 1054 AM EDT WED JUN 27 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT WINDS AND WAVES WILL INCREASE THIS AFTERNOON INTO THIS EVENING. WAVES OF 2 TO 4 FEET ARE EXPECTED NORTH OF GRAND HAVEN POSING A MODERATE SWIM HAZARD RISK. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE POSSIBLE THURSDAY AFTERNOON AND EVENING...SOME OF WHICH MAY BE SEVERE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. DUKE NJJ
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 9:49 AM EDT | Red Flag Warning | GRR | Allegan, Clare, Clinton, Gratiot, Ionia, Isabella and 11 more | 11 hr |
| Jun 27, 3:33 PM EDT | Small Craft Advisory | GRR | 7 hr |
Nearby
Heat Advisories in Michigan, 2012Every heat advisory in 2012
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.