Saturday, September 20, 2014

Hazardous Weather Outlook (Sept 20, 2014)

HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
446 AM EDT SAT SEP 20 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA TODAY AND TONIGHT.
STRONG TO SEVERE STORMS ARE POSSIBLE NEAR AND SOUTH OF INTERSTATE
96 FROM EARLY THIS AFTERNOON INTO EARLY THIS EVENING. DAMAGING WINDS
AND LARGE HAIL ARE THE MAIN THREATS.
AN ISOLATED TORNADO IS
POSSIBLE
.
THE MAIN STORM MOTION WILL BE EAST AT 35 MPH. LOCALLY
HEAVY RAIN COULD LEAD TO SOME URBAN AND POOR DRAINAGE FLOODING.
FREQUENT LIGHTNING WILL ACCOMPANY THE STRONGER STORMS

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS ARE POSSIBLE SUNDAY.

..SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING.

Monday, September 1, 2014

Hazardous Weather Outlook (Sept 1, 2014)

Well... all the other storms petered out...  anyone wanna bet this one will too?

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
543 AM EDT MON SEP 1 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS ARE POSSIBLE TODAY...ESPECIALLY BETWEEN NOON
AND 800 PM. THE BIGGEST THREAT FROM STORMS TODAY APPEARS TO BE
DAMAGING WINDS. THE STRONGEST STORMS WILL BE CAPABLE OF WIND
GUSTS IN EXCESS OF 60 MPH...HAIL TO AROUND ONE INCH IN DIAMETER
AND TORRENTIAL RAIN.
STORM MOTION TODAY WILL BE TO THE NORTHEAST
AROUND 40 MPH. STORMS WILL DECREASE IN COVERAGE AND INTENSITY
TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

STORMS RETURN TO THE FORECAST WEDNESDAY NIGHT THROUGH FRIDAY AS A
FRONTAL SYSTEM SWEEPS THROUGH THE GREAT LAKES REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE FROM LATE MORNING THROUGH THE
EVENING HOURS TODAY.



Sunday, August 31, 2014

Hazardous Weather Outlook (Aug 31, 2014)

Nothing severe today, however tomorrow may have issues.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
412 AM EDT SUN AUG 31 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED EAST OF US-131 AND
SOUTH OF I-96 THIS AFTERNOON BUT THESE ARE NOT EXPECTED TO BE
SEVERE. BRIEF HEAVY RAINFALL AND CLOUD TO GROUND LIGHTING ARE THE
MOST SIGNIFICANT HAZARDS FROM THESE STORMS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

STRONG TO POSSIBLY SEVERE STORMS ARE EXPECTED ON LABOR DAY AHEAD
OF A COLD FRONT THAT COMES THROUGH MONDAY NIGHT. DAMAGING WINDS...
LARGE HAIL AND LOCALLY HEAVY RAINFALL
WOULD BE THE PRIMARY THREAT
FROM THESE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LABOR DAY


Saturday, August 30, 2014

UPDATE (Aug 30, 2014)

The Storm Prediction Center has upgraded our status to "Slight Risk" for severe storm later this afternoon and evening hours. Those of you camping, tie down or stow your awnings.   See below for discussion...

...LOWER MI...
   WATER VAPOR IMAGERY SHOWS A PROGRESSIVE SHORTWAVE TROUGH OVER WI.
   THIS SYSTEM WILL TRACK NORTHEASTWARD ACROSS PARTS OF LOWER MI THIS
   AFTERNOON AND EARLY EVENING.  SIGNIFICANT CLOUD COVER OVER LOWER MI
   IS SLOWLY ERODING AND MOVING OUT OF THE AREA...WHICH MAY RESULT IN A
   FEW HOURS OF STRONG HEATING THIS AFTERNOON.  DEWPOINTS NEAR 70F WILL
   RESULT IN MLCAPE VALUES OF 1000-1500 J/KG.  FORECAST SOUNDINGS ALSO
   SHOW FAVORABLE WIND FIELDS FOR ORGANIZED/SEVERE STORMS WITH
   EFFECTIVE SHEAR OF 30-40 KNOTS.  IT REMAINS UNCLEAR HOW MANY ROBUST
   STORMS WILL AFFECT THIS AREA TODAY.  HOWEVER...THOSE STORMS THAT
   FORM WILL BE RELATIVELY FAST-MOVING...AND WILL POSE A RISK OF
   LOCALLY DAMAGING WIND GUSTS.

Hazardous Weather Outlook (Aug 30, 2014)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
350 AM EDT SAT AUG 30 2014


THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

PERIODS OF THUNDERSTORMS ARE EXPECTED INTO THIS EVENING. A FEW OF
THE STORMS THIS AFTERNOON COULD BE STRONG WITH WIND GUSTS TO AS
HIGH AS 50 MPH... FREQUENT CLOUD TO GROUND LIGHTING AND LOCALLY
HEAVY RAINFALL THAT MAY RESULT IN LOCAL FLOODING
. STORMS SHOULD
COME TO AN END BY LATE THIS EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS ARE EXPECTED EAST OF US-131 AND SOUTH OF
I-96 SUNDAY AFTERNOON BUT THESE ARE NOT EXPECTED TO BE SEVERE.

STRONG TO POSSIBLY SEVERE STORMS ARE EXPECTED ON MONDAY AHEAD OF A
COLD FRONT THAT COMES THROUGH MONDAY NIGHT. DAMAGING WINDS AND
LOCALLY HEAVY RAINFALL WOULD BE THE PRIMARY THREAT FROM THESE
STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE MONDAY.

Monday, August 25, 2014

Hazardous Weather Outlook (Aug 25, 2014)

Looks to be a warm one today....

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
638 AM EDT MON AUG 25 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

STRONG THUNDERSTORMS ARE POSSIBLE...ESPECIALLY THIS AFTERNOON AND
EVENING...BETWEEN 100 PM AND MIDNIGHT. WIND GUSTS IN EXCESS OF 50
MPH AND HAIL TO NEAR ONE INCH IN DIAMETER ARE POSSIBLE WITH THE
STRONGEST STORMS. ANY STORM TODAY WILL BE CAPABLE OF TORRENTIAL
RAINS...MAKING LOCALIZED FLOODING A THREAT.

HEAT INDEX VALUES MAY PUSH INTO THE LOWER TO MIDDLE 90S FOR A TIME
THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

ADDITIONAL THUNDERSTORMS ARE EXPECTED TUESDAY AND AGAIN FROM
THURSDAY NIGHT INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE THIS AFTERNOON AND EVENING.

Sunday, August 24, 2014

Hazardous Weather Outlook (Aug 24, 2014)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
637 AM EDT SUN AUG 24 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER
MICHIGAN.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

HEAT INDEX VALUES WILL LIKELY REACH THE LOWER TO MIDDLE 90S ACROSS
PORTIONS OF SOUTHWEST LOWER MICHIGAN MONDAY AND TUESDAY WITH VERY
HUMID CONDITIONS.

THERE IS A CHANCE FOR STRONG THUNDERSTORMS MONDAY INTO TUESDAY.
SOME OF THE STORMS MAY CONTAIN WIND GUSTS OVER 45 MPH AND LARGE
HAIL.

MULTIPLE ROUNDS OF STORMS THROUGH THE UPCOMING WEEK COULD
YIELD RAINFALL TOTALS OF 1 TO 2 INCHES IN SPOTS BY WEEKS END.
TORRENTIAL INCH PER HOUR RAINFALL RATES ARE QUITE POSSIBLE EARLY
IN THE WEEK WITH A TROPICAL AIR MASS IN PLACE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.