Alert archive / Michigan / Special Weather Statements in 2015
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Aug 2, 2015, 5:15 PM EDT for 8 counties in Michigan. It was in force for 105 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 2, 2015, 5:15 PM EDT (21:15 UTC)
- Expired
- Aug 2, 2015, 7:00 PM EDT
- In force
- 105 min
- Issued by
- NWS Grand Rapids, MI
Counties Clare County, MI, Isabella County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI
The radar
The Grand Rapids radar (KGRR), 101 km from the middle of the area, began a volume at 21:15 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.3 hours before the alert went out and 191 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
- 1667 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 10.4
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 Aug 2, 3:02 PM EDT, 2 hours 13 minutes earlier.
Area forecast discussion, Aug 2, 3:02 PM EDT, 2 hours 13 minutes before
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</html>Hazardous weather outlook, Aug 2, 11:18 AM EDT, 5 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1118 AM EDT SUN AUG 2 2015 MIZ037>040-043>046-050>052-056>059-064>067-071>074-031000- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 1118 AM EDT SUN AUG 2 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT SEVERE THUNDERSTORMS ARE LIKELY VERY LATE THIS AFTERNOON INTO TONIGHT. A FEW SCATTERED STRONGER STORMS WILL BE POSSIBLE THROUGH THIS AFTERNOON NEAR U.S.-10. THE MAIN THREAT WILL BE DAMAGING WIND GUSTS OF 60 MPH OR GREATER. SECONDARY CONCERNS INCLUDE LARGE HAIL...HEAVY RAINFALL...AND AN ISOLATED TORNADO. THE STORMS WILL FORM ALONG A COLD FRONT WHICH WILL APPROACH LUDINGTON AROUND 6PM AND REACH GRAND RAPIDS AROUND 10 PM. STORMS WILL CONTINUE MOVING SOUTHEAST TOWARD THE I-94 CORRIDOR AFTER 11 PM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT. LMZ844>849-031000- 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- 1118 AM EDT SUN AUG 2 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT WINDY CONDITIONS ARE EXPECTED TODAY ON THE LAKE WITH GUSTS OVER 30 MPH POSSIBLE ALONG WITH 3 TO 6 FOOT WAVES OR SLIGHTLY HIGHER. THIS WILL CREATE HAZARDOUS CONDITIONS FOR SMALLER CRAFT AND SWIMMERS. SEVERE THUNDERSTORMS ARE LIKELY VERY LATE THIS AFTERNOON INTO TONIGHT. A FEW SCATTERED STRONGER STORMS WILL BE POSSIBLE THROUGH THIS AFTERNOON NORTH OF PENTWATER. THE MAIN THREAT WILL BE DAMAGING WIND GUSTS OF 60 MPH OR GREATER. SECONDARY CONCERNS INCLUDE LARGE HAIL...HEAVY RAINFALL...AND AN ISOLATED WATERSPOUT. THE STORMS WILL FORM ALONG A COLD FRONT WHICH WILL APPROACH LUDINGTON AROUND 6PM AND MOVE SOUTH ALONG THE SHORE THROUGH MIDNIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON AND TONIGHT. NJJ
In the hours before
Special weather statement, Aug 2, 12:48 PM EDT, 4 hours 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1248 PM EDT SUN AUG 2 2015 MIZ039-040-021730- OSCEOLA MI-CLARE MI- 1248 PM EDT SUN AUG 2 2015 ...SIGNIFICANT WEATHER ADVISORY... AT 1244 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM NORTH OF EVART TO NEAR MARION...AND MOVING EAST AT 45 MPH. PENNY SIZE HAIL AND WIND GUSTS AT LEAST 40 MPH WITH SOME DOWNED TREE LIMBS WILL BE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... CLARE... EVART... MARION... FARWELL... HIGHLAND... LAKE... HERSEY... GIBOS CORNERS... DIGHTON... PARK LAKE... INA... PISGAH HEIGHTS... TEMPLE... AVONDALE... LEOTA... LAKE GEORGE... STAMBAUGH CORNER... SEARS... THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. LAT...LON 4416 8461 4381 8461 4382 8548 4416 8534 TIME...MOT...LOC 1644Z 268DEG 39KT 4415 8511 4397 8524 CAS
Special weather statement, Aug 2, 5:15 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
515 PM EDT SUN AUG 2 2015
MIZ037>040-043>046-022300-
MECOSTA MI-OSCEOLA MI-OCEANA MI-MASON MI-LAKE MI-MASON MI-OCEANA MI-
NEWAYGO MI-ISABELLA MI-CLARE MI-
515 PM EDT SUN AUG 2 2015
...SIGNIFICANT WEATHER ADVISORY...
AT 507 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS THAT EXTENDED FROM NEAR MOORESTOWN TO MANISTEE. THIS
LINE OF STORMS WAS MOVING SOUTHEAST AT 35 MPH AND IS EXPECTED TO
MOVE INTO THE AREA AFTER 530 PM EDT.
AT LEAST PENNY SIZE HAIL AND WIND GUSTS OF AT LEAST 50 MPH WILL BE
POSSIBLE WITH THESE STORMS. STORMS HAVE THE POTENTIAL TO INTENSIFY
AND PRODUCE DAMAGING WIND GUSTS. FREQUENT LIGHTNING...TORRENTIAL
RAINFALL...AND NUISANCE FLOODING WILL ALSO BE POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
MOUNT PLEASANT... BIG RAPIDS... LUDINGTON...
CLARE... HART... NEWAYGO...
EVART... WHITE CLOUD... BALDWIN...
FREMONT... REED CITY... SHEPHERD...
SCOTTVILLE... HESPERIA... GRANT...
MARION... FARWELL... PENTWATER...
MORLEY... MECOSTA...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE PREPARED TO TAKE SHELTER IF THUNDERSTORMS APPROACH. STAY TUNED
FOR THE LATEST UPDATES.
&&
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR
SOUTHWESTERN MICHIGAN.
LAT...LON 4416 8595 4416 8461 4347 8461 4347 8556
4329 8556 4330 8604 4347 8604 4347 8646
4362 8654 4382 8643 4397 8646 4406 8651
4418 8638
TIME...MOT...LOC 2107Z 297DEG 32KT 4445 8503 4426 8674
TJTThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 12:48 PM EDT | Special Weather Statement | GRR | Clare, Osceola | 42 min |
| Aug 2, 4:22 PM EDT | Special Marine Warning | GRR | 83 min | |
| Aug 2, 5:31 PM EDT | Special Marine Warning | GRR | 89 min | |
| Aug 2, 6:01 PM EDT | Severe Thunderstorm Warning | GRR | Lake, Mason, Osceola | 44 min |
| Aug 2, 6:21 PM EDT | Severe Thunderstorm Warning | GRR | Clare | 84 min |
| Aug 2, 6:50 PM EDT | Special Marine Warning | GRR | 85 min | |
| Aug 2, 7:12 PM EDT | Special Marine Warning | GRR | 63 min | |
| Aug 2, 7:15 PM EDT | Special Weather Statement | GRR | Allegan, Barry, Clinton, Eaton, Gratiot, Ingham and 9 more | 2 hr |
| Aug 2, 7:31 PM EDT | Special Marine Warning | GRR | 29 min | |
| Aug 2, 7:31 PM EDT | Severe Thunderstorm Warning | GRR | Muskegon, Newaygo, Oceana | 59 min |
Nearby
Special Weather Statements in Michigan, 2015Every special weather statement in 2015
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.