Alert archive / Michigan / Special Weather Statements in 2011
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Jul 1, 2011, 8:01 AM EDT for Oceana County, Michigan. It was in force for 59 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 1, 2011, 8:01 AM EDT (12:01 UTC)
- Expired
- Jul 1, 2011, 9:00 AM EDT
- In force
- 59 min
- Issued by
- NWS Grand Rapids, MI
County Oceana County, MI
The radar
The Grand Rapids radar (KGRR), 101 km from the middle of the area, began a volume at 12:02 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, 0.0 hours before the alert went out and 246 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
- 1546 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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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 1, 7:45 AM EDT, 16 minutes earlier.
Area forecast discussion, Jul 1, 7:45 AM EDT, 16 minutes before
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</html>Hazardous weather outlook, Jul 1, 4:48 AM EDT, 3 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 448 AM EDT FRI JUL 1 2011 MIZ037>040-043>046-050>052-056>059-064>067-071>074-020900- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 448 AM EDT FRI JUL 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WITH LOCALLY VERY HEAVY RAIN WILL BE POSSIBLE THROUGH TODAY. THE HEAVIEST RAIN IS EXPECTED ROUGHLY ALONG AND WEST OF HIGHWAY 131. WHERE THE STORMS PERSIST...IN EXCESS OF 2 INCHES OF RAIN COULD FALL. A FEW OF THE STORMS COULD AGAIN APPROACH SEVERE LEVELS WITH DAMAGING WINDS...LARGE HAIL AND FREQUENT LIGHTNING THE PRIMARY RISKS. THE MAIN STORM MOTION WILL BE SOUTH SOUTHEAST AT AROUND 20 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A SLIGHT RISK FOR SEVERE THUNDERSTORMS EXISTS EAST OF A HOLLAND TO MOUNT PLEASANT LINE FOR SATURDAY. DAMAGING WINDS AND LARGE HAIL ARE THE MAIN THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES THROUGH SATURDAY. LMZ844>849-020900- 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- 448 AM EDT FRI JUL 1 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WITH FREQUENT LIGHTNING...GUSTY WINDS AND HAIL COULD POSE A HAZARD TO SMALL CRAFT THROUGH TONIGHT. WINDS AND WAVES WILL BECOME HAZARDOUS TO SMALL CRAFT BY THIS EVENING MAINLY NORTH OF WHITEHALL. AN INCREASED RISK FOR RIP CURRENTS WILL EXIST INTO TONIGHT MAINLY NORTH OF GRAND HAVEN. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ADDITIONAL THUNDERSTORMS COULD LEAD TO HAZARDOUS CONDITIONS FOR SMALL CRAFT ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED AT TIMES THROUGH SATURDAY. MJS
In the hours before
Special weather statement, Jul 1, 7:57 AM EDT, 4 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 30, 9:23 PM EDT | Areal Flood Advisory | GRR | Mason, Oceana | 6 hr |
| Jun 30, 9:23 PM EDT | Special Weather Statement | GRR | Mason, Muskegon, Oceana, Ottawa | 67 min |
| Jun 30, 10:17 PM EDT | Flash Flood Warning | GRR | Mason, Oceana | 6 hr |
| Jun 30, 10:38 PM EDT | Special Weather Statement | GRR | Muskegon, Ottawa | 67 min |
| Jul 1, 4:36 AM EDT | Small Craft Advisory | GRR | 17 hr | |
| Jul 1, 7:57 AM EDT | Special Weather Statement | GRR | Van Buren | 63 min |
| Jul 1, 8:04 AM EDT | Special Weather Statement | GRR | Mecosta | 56 min |
| Jul 1, 8:11 AM EDT | Areal Flood Advisory | GRR | Mason, Oceana | 9 hr |
| Jul 1, 10:27 AM EDT | Areal Flood Advisory | GRR | Muskegon | 6 hr |
| Jul 1, 11:23 AM EDT | Areal Flood Advisory | GRR | Ottawa | 6 hr |
| Jul 1, 11:38 AM EDT | Special Weather Statement | GRR | Newaygo | 37 min |
| Jul 1, 11:41 AM EDT | Special Weather Statement | GRR | Ottawa | 64 min |
| Jul 1, 12:40 PM EDT | Special Weather Statement | GRR | Ottawa | 65 min |
| Jul 1, 12:48 PM EDT | Areal Flood Advisory | GRR | Allegan, Van Buren | 4 hr |
| Jul 1, 1:22 PM EDT | Special Weather Statement | GRR | Ottawa | 68 min |
| Jul 1, 1:42 PM EDT | Areal Flood Advisory | GRR | Kent, Ottawa | 3 hr |
| Jul 1, 1:59 PM EDT | Severe Thunderstorm Warning | GRR | Kent, Ottawa | 19 min |
| Jul 1, 2:24 PM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 51 min |
| Jul 1, 2:31 PM EDT | Special Weather Statement | GRR | Barry | 59 min |
| Jul 1, 2:36 PM EDT | Special Marine Warning | GRR | 39 min | |
| Jul 1, 3:39 PM EDT | Special Weather Statement | GRR | Allegan, Kalamazoo, Van Buren | 51 min |
| Jul 1, 7:07 PM EDT | Special Weather Statement | GRR | Ingham | 53 min |
Nearby
Special Weather Statements in Michigan, 2011Every special weather statement in 2011
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.