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Alert Map SPC Activity Warn, Watch, Advisory Chart
Events Here are shown in order of age newest to oldest
Gale Warning - Event Continued
Wind Advisory - Event Continued
Wind Advisory - New Event
Gale Warning - New Event
Marine Weather Advisory - Event Upgraded
Click on the map areas for a more local alert listing
Alert Map

Gale Warning - Event Continued



NATIONAL WEATHER SERVICE GRAND RAPIDS MI
421 PM EDT FRI SEP 3 2010

LMZ844>849-040430-
/O.CON.KGRR.GL.W.0005.000000T0000Z-100904T1800Z/
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-
421 PM EDT FRI SEP 3 2010

Gale Warning... REMAINS IN EFFECT UNTIL 2 PM EDT SATURDAY...

GALE FORCE WINDS TO 40 KNOTS FROM THE WEST NORTHWEST AND WAVES UP
TO TEN TO FIFTEEN FEET WILL OCCUR TONIGHT INTO SATURDAY. THIS WILL
HAPPEN DUE TO A STRONG LOW PRESSURE SYSTEM EAST OF LAKE SUPERIOR.

Precautionary/Preparedness Actions...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.



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Wind Advisory - Event Continued



NATIONAL WEATHER SERVICE GRAND RAPIDS MI
417 PM EDT FRI SEP 3 2010

MIZ037-043-050-056-064-071-040430-
/O.CON.KGRR.WI.Y.0001.000000T0000Z-100904T1800Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF...LUDINGTON...HART...MUSKEGON...JENISON...
HOLLAND...SOUTH HAVEN
417 PM EDT FRI SEP 3 2010

Wind Advisory... REMAINS IN EFFECT UNTIL 2 PM EDT SATURDAY...

HAZARDOUS WEATHER...

* WEST WINDS GUSTING TO 45 MPH TONIGHT INTO EARLY SATURDAY.

* WINDS DIMINISHING BY SATURDAY AFTERNOON.

IMPACTS...

* TREE LIMBS AND WIRES MAY COME DOWN.

* DRIVING OF HIGH PROFILE VEHICLES DIFFICULT.

* YARD ITEMS COULD BE BLOWN AROUND.

Precautionary/Preparedness Actions...

* A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS BETWEEN 45 AND 57 MPH CAN BE EXPECTED. WINDS THIS
STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.



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Wind Advisory - New Event



WWUS73 KGRR 031418
NPWGRR


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1018 AM EDT FRI SEP 3 2010

MIZ037-043-050-056-064-071-032230-
/O.NEW.KGRR.WI.Y.0001.100903T1800Z-100904T1800Z/
MASON-OCEANA-MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF...LUDINGTON...HART...MUSKEGON...JENISON...
HOLLAND...SOUTH HAVEN
1018 AM EDT FRI SEP 3 2010

Wind Advisory... IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM EDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM
EDT SATURDAY.

HAZARDOUS WEATHER...

* WEST WINDS GUSTING TO 45 MPH.

* STARTING BY MID AFTERNOON. CONTINUING TONIGHT.

* WINDS DIMINISHING BY SATURDAY AFTERNOON.

IMPACTS...

* TREE LIMBS AND WIRES MAY COME DOWN.

* DRIVING OF HIGH PROFILE VEHICLES DIFFICULT.

* YARD ITEMS COULD BE BLOWN AROUND.

Precautionary/Preparedness Actions...

* A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS BETWEEN 45 AND 57 MPH CAN BE EXPECTED. WINDS THIS STRONG
CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE
VEHICLES. USE EXTRA CAUTION.



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Gale Warning - New Event



NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1106 AM EDT THU SEP 2 2010

LMZ844>849-022315-
/O.NEW.KGRR.SC.Y.0057.100902T2000Z-100903T1800Z/
/O.CON.KGRR.GL.W.0005.100903T1800Z-100904T1800Z/
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-
1106 AM EDT THU SEP 2 2010

Small Craft Advisory... IN EFFECT FROM 4 PM THIS AFTERNOON TO
2 PM EDT FRIDAY...
Gale Warning... REMAINS IN EFFECT FROM 2 PM FRIDAY TO 2 PM EDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A SMALL
CRAFT ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO
2 PM EDT FRIDAY. A GALE WARNING REMAINS IN EFFECT FROM 2 PM
FRIDAY TO 2 PM EDT SATURDAY.

INCREASING SOUTH TO SOUTHWEST WINDS LATER TODAY AND TONIGHT AHEAD
OF AN APPROACHING COLD FRONT WILL CAUSE WAVES TO BUILD TO 3 TO 6
FEET. THE WINDS WILL SHIFT TO THE WEST AND INCREASE FURTHER LATE
TONIGHT BEHIND THE COLD FRONT. THESE CONDITIONS WILL POSE A THREAT
TO SMALL CRAFT.

GALE FORCE WINDS TO 40 KNOTS FROM THE WEST NORTHWEST AND WAVES IN
EXCESS OF SIX FEET WILL OCCUR BY FRIDAY AFTERNOON INTO SATURDAY.
THIS WILL HAPPEN AS A LOW PRESSURE SYSTEM INTENSIFIES OVER THE
LAKE SUPERIOR REGION AND TRACKS NORTHEAST THROUGH SATURDAY.

Precautionary/Preparedness Actions...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT.
INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.



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Marine Weather Advisory - Event Upgraded



WHUS73 KGRR 020824
MWWGRR


URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
424 AM EDT THU SEP 2 2010

LMZ844>849-021630-
/O.UPG.KGRR.GL.A.0003.100903T1400Z-100905T0000Z/
/O.NEW.KGRR.GL.W.0005.100903T1800Z-100904T1800Z/
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-
424 AM EDT THU SEP 2 2010

Gale Warning... IN EFFECT FROM 2 PM FRIDAY TO 2 PM EDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 2 PM EDT
SATURDAY. THE GALE WATCH IS NO LONGER IN EFFECT.

GALE FORCE WINDS TO 40 KNOTS FROM THE WEST NORTHWEST AND WAVES IN
EXCESS OF SIX FEET WILL OCCUR BY FRIDAY AFTERNOON INTO SATURDAY.
THIS WILL HAPPEN AS A LOW PRESSURE SYSTEM INTENSIFIES OVER THE
LAKE SUPERIOR REGION AND TRACKS NORTHEAST THROUGH SATURDAY.

Precautionary/Preparedness Actions...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.



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All information obtained from the National Weather Service. Last Modified on September 3rd, 2010 16:19:32
Copyright © 2010 Graham Merrill - KB8SEW
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