Alert archive / Michigan / Special Weather Statements in 2012
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Mar 30, 2012, 9:15 AM EDT for 15 counties in Michigan. It was in force for 90 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
- Mar 30, 2012, 9:15 AM EDT (13:15 UTC)
- Expired
- Mar 30, 2012, 10:45 AM EDT
- In force
- 90 min
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Montcalm County, MI, Muskegon County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 10 km from the middle of the area, began a volume at 13:16 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, 1.3 hours before the alert went out and 178 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
- 955 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 177 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 Mar 30, 7:50 AM EDT, 1 hour 25 minutes earlier.
Area forecast discussion, Mar 30, 7:50 AM EDT, 1 hour 25 minutes before
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</html>Hazardous weather outlook, Mar 30, 5:45 AM EDT, 3 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 545 AM EDT FRI MAR 30 2012 MIZ037>040-043>046-050>052-056>059-064>067-071>074-310915- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 545 AM EDT FRI MAR 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A MIXTURE OF SNOW AND SLEET MAY CREATE TRAVEL DIFFICULTIES THIS MORNING NORTH OF INTERSTATE 96 AND EAST OF HIGHWAY 131. ONE TO THREE INCHES OF SNOW IS LIKELY NORTH OF A REED CITY TO MOUNT PLEASANT LINE. THUNDERSTORMS ARE POSSIBLE TODAY ALONG AND SOUTH OF THE INTERSTATE 96 CORRIDOR. THE STORMS MAY CONTAIN HAIL THE SIZE OF DIMES AS WELL AS LOCALLY HEAVY RAINFALL AS THEY MOVE EAST AT 30 MPH. URBAN AND SMALL STREAM FLOODING IS POSSIBLE. FREEZING TEMPERATURES ARE POSSIBLE TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS ARE POSSIBLE MONDAY AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY... BUT REPORTS OF SNOW AND SLEET AMOUNTS WOULD BE APPRECIATED. ALSO RELAY HAIL SIZE AND RAINFALL AMOUNTS ASSOCIATED WITH ANY THUNDERSTORMS TODAY. LMZ844>849-310915- 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- 545 AM EDT FRI MAR 30 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT EAST WINDS TO 30 KNOTS WILL CREATE CONDITIONS HAZARDOUS TO SMALL CRAFT TODAY. THUNDERSTORMS ARE POSSIBLE TODAY SOUTH OF WHITEHALL. THE STORMS MAY CONTAIN HAIL THE SIZE OF DIMES AS WELL AS LOCALLY HEAVY RAINFALL AS THEY MOVE EAST AT 30 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS ARE POSSIBLE MONDAY AND MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. MEADE
In the hours before
Local storm report, Mar 30, 8:25 AM EDT, 50 minutes before
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</html>Local storm report, Mar 30, 8:28 AM EDT, 47 minutes before
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</html>Local storm report, Mar 30, 9:09 AM EDT, 6 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 |
|---|---|---|---|---|
| Mar 30, 4:59 AM EDT | Small Craft Advisory | GRR | 14 hr | |
| Mar 30, 6:58 AM EDT | Special Weather Statement | GRR | Allegan, Barry, Kent, Muskegon, Ottawa | 2 hr |
| Mar 30, 10:43 AM EDT | Special Weather Statement | GRR | Barry, Calhoun, Clinton, Eaton, Ingham, Ionia and 2 more | 77 min |
| Mar 30, 1:18 PM EDT | Special Weather Statement | GRR | Jackson | 57 min |
| Mar 30, 2:12 PM EDT | Special Weather Statement | GRR | Allegan, Barry, Calhoun, Eaton, Ingham, Jackson and 2 more | 78 min |
| Mar 30, 3:18 PM EDT | Freeze Warning | GRR | Clare, Isabella, Lake, Mason, Mecosta, Newaygo and 1 more | 13 hr |
Nearby
Special Weather Statements in Michigan, 2012Every special weather statement 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.