Winter Storm Warning includes Tama County

UPDATED URGENT – WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE DES MOINES IA

357 AM CST MON MAR 4 2013

…LONG DURATION WINTER STORM FOR CENTRAL IOWA THROUGH TUESDAY…

A TWO PART WINTER STORM WILL AFFECT IOWA THROUGH TUESDAY. THE

FIRST PORTION WILL PRODUCE LIGHT TO MODERATE SNOW OVER NORTHEAST

IOWA EARLY THIS MORNING AND POSSIBLY SOME LIGHT FREEZING DRIZZLE

FARTHER SOUTH. A SECOND UPPER LEVEL STORM WILL TRACK ACROSS THE

STATE TONIGHT INTO TUESDAY. THIS WILL BRING MODERATE TO HEAVY

SNOWFALL TO NORTHEAST AND EAST CENTRAL SECTIONS INTO EARLY

TUESDAY. NORTH TO NORTHWEST WINDS WILL INCREASE ON TUESDAY WITH

SOME BLOWING AND DRIFTING SNOW.

IAZ004>007-016-017-024>028-036>039-049-050-041400-

/O.CON.KDMX.WS.W.0005.000000T0000Z-130305T1800Z/

EMMET-KOSSUTH-WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-HUMBOLDT-WRIGHT-

FRANKLIN-BUTLER-BREMER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-MARSHALL-

TAMA-

INCLUDING THE CITIES OF…ESTHERVILLE…ALGONA…FOREST CITY…

NORTHWOOD…GARNER…MASON CITY…HUMBOLDT…CLARION…HAMPTON…

ALLISON…WAVERLY…WEBSTER CITY…ELDORA…GRUNDY CENTER…

WATERLOO…MARSHALLTOWN…TOLEDO

357 AM CST MON MAR 4 2013

…WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST

TUESDAY…

* STORM TRENDS…SNOW WILL PERSIST OVER NORTH CENTRAL AND

NORTHEAST IOWA EARLY THIS MORNING…MAINLY ALONG AND NORTHEAST

OF AN ESTHERVILLE…TO MARSHALLTOWN TO GRINNELL LINE. THE SNOW

SHOULD CONTINUE MOVING NORTHEAST EVENTUALLY EXITING THE MASON

CITY AND WATERLOO AREAS SHORTLY AFTER 800 AM. SNOW TOTALS THIS

MORNING WILL TYPICALLY VARY FROM ONE TO THREE INCHES. ALTHOUGH

ANY ACCUMULATIONS WOULD BE MINOR…LIGHT SNOW OR PATCHY FREEZING

DRIZZLE MAY ALSO LINGER THROUGHOUT THE DAY.

PRECIPITATION WILL THEN INTENSIFY ONCE AGAIN LATER THIS

EVENING…MAINLY IN THE FORM OF SNOW. AN ADDITIONAL TWO TO SEVEN

INCHES OF SNOW MAY FALL OVERNIGHT INTO EARLY TUESDAY MORNING.

INCREASING NORTH WINDS TUESDAY MAY ALSO LEAD TO SOME BLOWING AND

DRIFTING SNOW.

* STORM TOTAL SNOW AND ICE ACCUMULATIONS…ACCUMULATIONS OF 3 TO 9

INCHES ARE EXPECTED BY TUESDAY WITH THE HIGHER END OF THAT RANGE

NORTHEAST OF A LINE FROM ALGONA TO MARSHALLTOWN. LIGHT

ACCUMULATIONS OF ICE WELL UNDER A TENTH OF AN INCH MAY ALSO

OCCUR TODAY.

* WINDS/VISIBILITY…SNOW THIS MORNING ALONG WITH BLOWING SNOW DUE

TO SOUTHEAST WINDS OF 15 TO 25 MPH MAY REDUCE VISIBILITIES TO

UNDER A MILE AT TIMES THROUGH 600 TO 800 AM. GUSTY NORTH WINDS

AT 15 TO 25 MPH DEVELOPING ON TUESDAY MAY ALSO PRODUCE

ADDITIONAL BLOWING AND DRIFTING SNOW. VISIBILITIES DURING THE

HEAVIER SNOW TONIGHT AND EARLY TUESDAY MAY FALL TO A HALF MILE

OR LESS.

* IMPACTS…HEAVY SNOW ACCUMULATIONS ARE FORECAST TO PRODUCE LOW

VISIBILITY…SNOW COVERED ROADS…AND HAZARDOUS DRIVING

CONDITIONS. BLOWING AND DRIFTING SNOW MAY OCCUR LATER TUESDAY AS

WELL. A LIGHT GLAZING OF FREEZING PRECIPITATION MAY ALSO RESULT

IN HAZARDOUS TRAVEL TODAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER

CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF

SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN

AN EMERGENCY. IF YOU MUST TRAVEL…KEEP AN EXTRA FLASHLIGHT…

FOOD…AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

URGENT – WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE DES MOINES IA

854 PM CST SUN MAR 3 2013

…LONG DURATION WINTER STORM FOR CENTRAL IOWA THROUGH TUESDAY…

A TWO PART WINTER STORM WILL AFFECT CENTRAL IOWA THROUGH TUESDAY.

THE FIRST PORTION WILL PRODUCE LIGHT TO MODERATE SNOW TONIGHT AND

LAST INTO MONDAY MORNING ACROSS NORTHERN IOWA. A LIGHT FROZEN MIX

WILL FALL ALONG THE SOUTHERN EDGE OF THIS BAND OF SNOW WITH UP TO

ONE TENTH OF AN INCH OF ICE BY NOON MONDAY OVER CENTRAL AND

SOUTHERN IOWA. A SECOND UPPER LEVEL STORM WILL TRACK ACROSS THE

STATE MONDAY NIGHT THROUGH TUESDAY. THIS WILL BRING MODERATE TO

HEAVY SNOWFALL TO THE AREA INTO EARLY TUESDAY. NORTH TO NORTHWEST

WINDS WILL INCREASE ON TUESDAY WITH SOME BLOWING AND DRIFTING

SNOW.

IAZ004>007-016-017-024>028-036>039-049-050-041100-

/O.CON.KDMX.WS.W.0005.130304T0600Z-130305T1800Z/

TAMA- EMMET-KOSSUTH-WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-HUMBOLDT-WRIGHT-

FRANKLIN-BUTLER-BREMER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-MARSHALL-

INCLUDING THE CITIES OF…ESTHERVILLE…ALGONA…FOREST CITY…

NORTHWOOD…GARNER…MASON CITY…HUMBOLDT…CLARION…HAMPTON…

ALLISON…WAVERLY…WEBSTER CITY…ELDORA…GRUNDY CENTER…

WATERLOO…MARSHALLTOWN…TOLEDO

854 PM CST SUN MAR 3 2013

…WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT

TO NOON CST TUESDAY…

* TIMING…FREEZING RAIN AND SLEET OVER NORTHWEST IOWA IOWA IS

EXPECTED TO CHANGE TO SNOW WITH MODERATE SNOW AND SPREAD EAST

AND INTENSIFY TONIGHT. LOOK FOR PERIODS OF LIGHT PRECIPITATION

DURING THE DAY MONDAY BEFORE ANOTHER LONG DURATION PERIOD OF

MODERATE TO LOCALLY HEAVY SNOW OCCURS MONDAY NIGHT THROUGH

TUESDAY. SOME LIGHT FREEZING DRIZZLE MAY FALL OVER PORTIONS OF

THE WARNING AREA MONDAY AFTER THE FIRST BATCH OF SNOWFALL

DIMINISHES. THE SECOND AREA OF HEAVY SNOW WILL DEVELOP MONDAY

NIGHT AND CONTINUE INTO EARLY TUESDAY MORNING.

* STORM TOTAL SNOW/ICE ACCUMULATIONS…ACCUMULATIONS OF 6 TO 10

INCHES ARE EXPECTED WITH THE HIGHER AMOUNTS FURTHER NORTH AND

NORTHEAST. LIGHT ACCUMULATIONS OF ICE LESS THAN ONE TENTH OF

AN INCH WILL OCCUR THROUGH THE EVENT.

* WINDS/VISIBILITY…SOUTHEAST WINDS AT 15 TO 20 MPH WITH GUSTS

NEAR 25 MPH ARE EXPECTED TONIGHT INTO MONDAY MORNING. WINDS

WILL DIMINISH DURING THE AFTERNOON MONDAY AND MONDAY NIGHT…

THEN SHIFT AND INCREASE FROM THE NORTH TO NORTHWEST BY

TUESDAY. PERIODS OF REDUCED VISIBILITY TO LESS THAN A HALF

MILE AT TIMES CAN BE EXPECTED LATE TONIGHT INTO MONDAY

MORNING…AND AGAIN THROUGHOUT THE DAY TUESDAY.

* IMPACTS…POTENTIALLY HEAVY SNOW ACCUMULATIONS ALONG WITH

GUSTY WINDS ARE FORECAST TO PRODUCE LOW VISIBILITY…SNOW

COVERED ROADS…AND HAZARDOUS DRIVING CONDITIONS. A LIGHT

GLAZING OF FREEZING PRECIPITATION MAY RESULT IN HAZARDOUS

TRAVEL AS WELL.