Alert archive / Iowa / Winter Storm Warnings in 2016

Winter Storm Warning 3, NWS Des Moines, IA

December 10, 201614 counties in Iowa

NWS Des Moines, IA issued this winter storm warning at Dec 10, 2016, 2:47 PM CST for 14 counties in Iowa. It was in force for 14 hr. 12 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 10, 2016, 2:47 PM CST (20:47 UTC)
Expired
Dec 11, 2016, 4:52 AM CST
In force
14 hr
Issued by
NWS Des Moines, IA

Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Emmet County, IA, Franklin County, IA, Grundy County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA

The radar

The Des Moines radar (KDMX), 136 km from the middle of the area, began a volume at 20:44 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.

What was reported inside it

TimeReportWhereRemark
Dec 10, 5:00 PM CSTSNOW 1.51 Ne Waterloo, IAKWWL TV.
Dec 10, 5:00 PM CSTSNOW 1.51 Ne Waterloo, IAKIMT TV.
Dec 10, 5:45 PM CSTSNOW 1.82 Se Waterloo Regional, IA.
Dec 10, 8:50 PM CSTSNOW 2Lake Mills, IAREPORT VIA SOCIAL MEDIA.
Dec 10, 9:25 PM CSTSNOW 2Parkersburg, IAREPORT VIA SOCIAL MEDIA.
Dec 10, 9:30 PM CSTSNOW 2.5Sumner, IA2-3 INCHES. REPORT VIA SOCIAL MEDIA.
Dec 10, 10:50 PM CSTSNOW 2.8Mason City, IAKIMT TV.
Dec 10, 11:00 PM CSTSNOW 3.3Clear Lake, IAVIA SOCIAL MEDIA.
Dec 10, 11:20 PM CSTSNOW 3Hampton, IA.
Dec 10, 11:25 PM CSTSNOW 3Algona, IA.
Dec 10, 11:30 PM CSTSNOW 2.5Clarion, IA.
Dec 11, 12:00 AM CSTSNOW 2.82 Se Waterloo Regional, IAOBSERVER IN WATERLOO REPORTS 1.0 OF SNOW IN THE PAST SIX HOURS, STORM TOTAL 2.8 SO FAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.8 hours before the alert went out and 212 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.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2016-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2016-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
104 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

118 
WWUS43 KDMX 102047
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
247 PM CST SAT DEC 10 2016

...BAND OF HEAVY SNOW EXPECTED OVER NORTHERN IOWA...

.AREAS OF LIGHT TO MODERATE SNOW WILL PERSIST THROUGH THE
AFTERNOON. THE SNOW IS EXPECTED TO INTENSIFY AGAIN OVERNIGHT WITH
A BAND OF HEAVY SNOW DEVELOPING OVER PORTIONS OF NORTHERN IOWA. 
IN ADDITION...THE WIND WILL BECOME BREEZY OVERNIGHT AND WILL 
CREATE SOME BLOWING SNOW AND WILL DIMINISH VISIBILITIES AT TIMES.

IAZ004>007-015>017-024>028-038-039-110500-
/O.UPG.KDMX.WW.Y.0013.000000T0000Z-161211T2100Z/
/O.NEW.KDMX.WS.W.0003.161210T2047Z-161211T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF ESTHERVILLE, ALGONA, FOREST CITY, 
LAKE MILLS, NORTHWOOD, MANLY, EMMETSBURG, GARNER, BRITT, KANAWHA,
MASON CITY, CLEAR LAKE, HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, 
HAMPTON, PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON,
ALLISON, DUMONT, WAVERLY, GRUNDY CENTER, REINBECK, CONRAD, DIKE, 
WELLSBURG, WATERLOO, AND CEDAR FALLS
247 PM CST SAT DEC 10 2016

...WINTER STORM WARNING IN EFFECT UNTIL NOON CST SUNDAY...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW, WHICH IS IN EFFECT UNTIL NOON CST 
SUNDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. 

* SHORT TERM TRENDS...A BAND OF LIGHT TO MODERATE SNOWFALL WILL
  CONTINUE THIS AFTERNOON. EXPECT ADDITIONAL ACCUMULATIONS OF ONE
  INCH OR LESS THROUGH 5 PM. 

* STORM TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS WILL RANGE FROM
  6 TO 9 INCHES. LOCALLY HIGHER ACCUMULATIONS MAY OCCUR. 

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WILL INCREASE
  OVERNIGHT INTO THE 15 TO 20 MPH RANGE WITH GUSTS NEAR 25 MPH. 
  VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE AT 
  TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

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.


&&

$$

IAZ023-033>037-048>050-110500-
/O.EXT.KDMX.WW.Y.0013.000000T0000Z-161211T1800Z/
POCAHONTAS-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-STORY-MARSHALL-
TAMA-
INCLUDING THE CITIES OF POCAHONTAS, LAURENS, ROLFE, FONDA, 
GILMORE CITY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE, SCHALLER, 
EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY, FORT DODGE, 
WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY, AMES, MARSHALLTOWN, 
TAMA, TOLEDO, TRAER, DYSART, AND GLADBROOK
247 PM CST SAT DEC 10 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON CST SUNDAY...

* SHORT TERM TRENDS...PERIODS OF LIGHT SNOW WILL CONTINUE THIS
  AFTERNOON THOUGH MAY END AT TIMES. ADDITIONAL ACCUMULATIONS THIS
  AFTERNOON WILL BE AN INCH OR LESS. EXPECT THE SNOW TO INCREASE
  AGAIN OVERNIGHT.

* STORM TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS FOR THE
  EVENT WILL RANGE FROM 2 TO 6 INCHES WITH THE GREATEST AMOUNTS
  NORTH AND LESSER AMOUNTS SOUTH. 

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WILL INCREASE
  OVERNIGHT INTO THE 15 TO 20 MPH RANGE WITH GUSTS NEAR 25 MPH. 
  VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE AT 
  TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES AND USE CAUTION WHILE
DRIVING.

&&

$$
5 follow-up statements
315 
WWUS43 KDMX 110055
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
655 PM CST SAT DEC 10 2016

...BAND OF SNOW ON TAP LATE TONIGHT INTO EARLY SUNDAY OVER 
NORTHERN IOWA...

.SNOW IS SPREAD AND INTENSIFY AGAIN LATE TONIGHT INTO THE OVERNIGHT
HOURS ACROSS PORTIONS OF NORTHERN IOWA. IN ADDITION...THE WIND 
WILL BECOME BREEZY AND LIKELY CREATE SOME BLOWING SNOW AND REDUCED
VISIBILITIES AT TIMES.

IAZ004>007-015>017-024>028-038-039-110900-
/O.CON.KDMX.WS.W.0003.000000T0000Z-161211T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF ESTHERVILLE, ALGONA, FOREST CITY, 
LAKE MILLS, NORTHWOOD, MANLY, EMMETSBURG, GARNER, BRITT, KANAWHA,
MASON CITY, CLEAR LAKE, HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, 
HAMPTON, PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON,
ALLISON, DUMONT, WAVERLY, GRUNDY CENTER, REINBECK, CONRAD, DIKE, 
WELLSBURG, WATERLOO, AND CEDAR FALLS
655 PM CST SAT DEC 10 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY...

* SHORT TERM TRENDS...A BAND OF MODERATE LOCALLY HEAVY SNOW IS
  EXPECTED TO DEVELOP LATER THIS EVENING AND SPAN ACROSS MUCH OF
  NORTHERN IOWA DURING THE OVERNIGHT HOURS. 

* STORM TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS WILL 
  RANGE FROM 6 TO 9 INCHES. LOCALLY HIGHER ACCUMULATIONS MAY 
  OCCUR. 

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WILL INCREASE 
  OVERNIGHT INTO THE 15 TO 20 MPH RANGE WITH GUSTS NEAR 25 MPH. 
  VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE AT 
  TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

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.

&&

$$

IAZ023-033>037-048>050-110900-
/O.CON.KDMX.WW.Y.0013.000000T0000Z-161211T1800Z/
POCAHONTAS-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-STORY-MARSHALL-
TAMA-
INCLUDING THE CITIES OF POCAHONTAS, LAURENS, ROLFE, FONDA, 
GILMORE CITY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE, SCHALLER, 
EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY, FORT DODGE, 
WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY, AMES, MARSHALLTOWN, 
TAMA, TOLEDO, TRAER, DYSART, AND GLADBROOK
655 PM CST SAT DEC 10 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
SUNDAY...

* SHORT TERM TRENDS...ADDITIONAL PERIODS OF LIGHT SNOW ARE
  ANTICIPATED LATE THIS EVENING AND INTO THE OVERNIGHT HOURS.

* STORM TOTAL SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS FOR THE 
  EVENT WILL RANGE FROM 2 TO 6 INCHES WITH THE GREATEST AMOUNTS 
  NORTH AND LESSER AMOUNTS SOUTH BY SUNDAY MORNING. 

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WILL INCREASE 
  OVERNIGHT INTO THE 15 TO 20 MPH RANGE WITH GUSTS NEAR 25 MPH. 
  VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE AT 
  TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES AND USE CAUTION WHILE
DRIVING.

&&

$$

PODRAZIK
991 
WWUS43 KDMX 110415
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1015 PM CST SAT DEC 10 2016

...SNOW TO PERSIST THROUGH THE OVERNIGHT HOURS ACROSS NORTHERN 
IOWA...

.A BAND OF SNOW WILL CONTINUE TO SPREAD AND INTENSIFY THROUGH THE
OVERNIGHT HOURS ACROSS PORTIONS OF NORTHERN IOWA. IN
ADDITION...GUSTY WINDS ARE LIKELY TO CREATE SOME BLOWING SNOW AND
REDUCED VISIBILITIES AT TIMES.

IAZ004>007-015>017-024>028-038-039-111215-
/O.CON.KDMX.WS.W.0003.000000T0000Z-161211T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF ESTHERVILLE, ALGONA, FOREST CITY, 
LAKE MILLS, NORTHWOOD, MANLY, EMMETSBURG, GARNER, BRITT, KANAWHA,
MASON CITY, CLEAR LAKE, HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, 
HAMPTON, PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON,
ALLISON, DUMONT, WAVERLY, GRUNDY CENTER, REINBECK, CONRAD, DIKE, 
WELLSBURG, WATERLOO, AND CEDAR FALLS
1015 PM CST SAT DEC 10 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST SUNDAY...

* SHORT TERM TRENDS...A BAND OF LIGHT TO LOCALLY MODERATE SNOW
  LOOKS TO CONTINUE TO SPREAD OVER THE WARNED AREA DURING THE
  OVERNIGHT HOURS. 

* STORM TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL TOTALS OF 3
  TO 6 INCHES ARE EXPECTED THROUGH SUNDAY MORNING...WITH LOCALLY
  HIGHER AMOUNTS POSSIBLE RESULTING IN STORM TOTAL ACCUMULATIONS
  OF 5 TO 8 INCHES ARE ANTICIPATED.

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
  NEAR 25 MPH WILL CAUSE VISIBILITIES TO BE REDUCED TO LESS THAN 
  ONE HALF MILE AT TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

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.

&&

$$

IAZ023-033>037-048>050-111215-
/O.CON.KDMX.WW.Y.0013.000000T0000Z-161211T1800Z/
POCAHONTAS-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-STORY-MARSHALL-
TAMA-
INCLUDING THE CITIES OF POCAHONTAS, LAURENS, ROLFE, FONDA, 
GILMORE CITY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE, SCHALLER, 
EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY, FORT DODGE, 
WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY, AMES, MARSHALLTOWN, 
TAMA, TOLEDO, TRAER, DYSART, AND GLADBROOK
1015 PM CST SAT DEC 10 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
SUNDAY...

* SHORT TERM TRENDS...ADDITIONAL PERIODS OF LIGHT SNOW ARE
  ANTICIPATED INTO EARLY SUNDAY MORNING.

* STORM TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 1 T 3 INCHES OF
  SNOW IS POSSIBLE THROUGH EARLY SUNDAY MORNING RESULTING IN TOTAL
  ACCUMULATIONS FOR THE EVENT FROM 2 TO 5 INCHES.

* WINDS/VISIBILITY...SOUTHEAST WINDS 10 TO 15 MPH WILL INCREASE
  OVERNIGHT INTO THE 15 TO 20 MPH RANGE WITH GUSTS NEAR 25 MPH.
  VISIBILITIES WILL BE REDUCED TO LESS THAN ONE HALF MILE AT
  TIMES.

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES AND USE CAUTION WHILE
DRIVING.

&&

$$

PODRAZIK
152 
WWUS43 KDMX 110700
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
100 AM CST SUN DEC 11 2016

...SNOW TO PERSIST THROUGH THE OVERNIGHT HOURS ACROSS NORTHERN
IOWA...

.A BAND OF SNOW WILL GRADUALLY MOVE OFF FROM WEST TO EAST
OVERNIGHT. GUSTY WINDS MAY RESULT IN SOME BLOWING SNOW AND 
REDUCED VISIBILITIES AT TIMES.

IAZ004>007-015>017-024>028-038-039-111500-
/O.CON.KDMX.WS.W.0003.000000T0000Z-161211T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY-BLACK HAWK-
INCLUDING THE CITIES OF ESTHERVILLE, ALGONA, FOREST CITY, 
LAKE MILLS, NORTHWOOD, MANLY, EMMETSBURG, GARNER, BRITT, KANAWHA,
MASON CITY, CLEAR LAKE, HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, 
HAMPTON, PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON,
ALLISON, DUMONT, WAVERLY, GRUNDY CENTER, REINBECK, CONRAD, DIKE, 
WELLSBURG, WATERLOO, AND CEDAR FALLS
100 AM CST SUN DEC 11 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* SHORT TERM TRENDS...A BAND OF LIGHT TO LOCALLY MODERATE SNOW
  WILL GRADUALLY MOVE OFF FROM WEST TO EAST THIS MORNING.

* STORM TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL TOTALS OF 
  1 TO 4 INCHES ARE EXPECTED...RESULTING IN STORM TOTAL 
  ACCUMULATIONS OF 4 TO 7 INCHES. 

* WINDS/VISIBILITY...SOUTHEAST WINDS OF 10 TO 15 MPH WITH SOME
  HIGHER GUSTS WILL CAUSE VISIBILITIES TO BE REDUCED TO LESS THAN
  A MILE AT TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

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.

&&

$$

IAZ023-033>037-048>050-111500-
/O.CON.KDMX.WW.Y.0013.000000T0000Z-161211T1800Z/
POCAHONTAS-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-STORY-MARSHALL-
TAMA-
INCLUDING THE CITIES OF POCAHONTAS, LAURENS, ROLFE, FONDA, 
GILMORE CITY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE, SCHALLER, 
EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY, FORT DODGE, 
WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY, AMES, MARSHALLTOWN, 
TAMA, TOLEDO, TRAER, DYSART, AND GLADBROOK
100 AM CST SUN DEC 11 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TODAY...

* SHORT TERM TRENDS...LIGHT SNOW WILL FALL AT TIMES THIS MORNING
  BEFORE ENDING FROM WEST TO EAST.

* STORM TOTAL SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 2 INCHES OF
  SNOW IS POSSIBLE THROUGH THE MORNING...RESULTING IN STORM TOTAL
  ACCUMULATIONS OF 2 TO 4 INCHES. 

* WINDS/VISIBILITY...SOUTHEAST WINDS OF 10 TO 15 MPH WITH SOME
  HIGHER GUSTS WILL REDUCE VISIBILITY TO LESS THAN A MILE AT 
  TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW
WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW
COVERED ROADS AND LIMITED VISIBILITIES AND USE CAUTION WHILE
DRIVING.

&&

$$

LEE
563 
WWUS43 KDMX 110924
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
324 AM CST SUN DEC 11 2016

...SNOW ENDING FROM WEST TO EAST THIS MORNING...

.SNOW IS TAPERING OFF ACROSS NORTHERN IOWA AND WILL END IN MOST
AREAS BY SUNRISE.

IAZ004-005-015-024-025-038-111030-
/O.CAN.KDMX.WS.W.0003.000000T0000Z-161211T1800Z/
EMMET-KOSSUTH-PALO ALTO-HUMBOLDT-WRIGHT-GRUNDY-
INCLUDING THE CITIES OF ESTHERVILLE, ALGONA, EMMETSBURG, 
HUMBOLDT, EAGLE GROVE, CLARION, BELMOND, GRUNDY CENTER, REINBECK,
CONRAD, DIKE, AND WELLSBURG
324 AM CST SUN DEC 11 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER STORM WARNING. 

ACCUMULATING SNOWFALL HAS ENDED. LIGHT SNOW MAY STILL FALL AT
TIMES THIS MORNING BUT WILL HAVE LITTLE ADDITIONAL IMPACT. ROADS
MAY REMAIN SLICK SO PLEASE CONTINUE TO DRIVE WITH CAUTION.

$$

IAZ023-033>037-048>050-111030-
/O.CAN.KDMX.WW.Y.0013.000000T0000Z-161211T1800Z/
POCAHONTAS-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-STORY-MARSHALL-
TAMA-
INCLUDING THE CITIES OF POCAHONTAS, LAURENS, ROLFE, FONDA, 
GILMORE CITY, SAC CITY, LAKE VIEW, ODEBOLT, WALL LAKE, SCHALLER, 
EARLY, ROCKWELL CITY, MANSON, LAKE CITY, POMEROY, FORT DODGE, 
WEBSTER CITY, IOWA FALLS, ELDORA, ACKLEY, AMES, MARSHALLTOWN, 
TAMA, TOLEDO, TRAER, DYSART, AND GLADBROOK
324 AM CST SUN DEC 11 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

ACCUMULATING SNOWFALL HAS ENDED. LIGHT SNOW MAY STILL FALL AT
TIMES THIS MORNING BUT WILL HAVE LITTLE ADDITIONAL IMPACT. ROADS
MAY REMAIN SLICK SO PLEASE CONTINUE TO DRIVE WITH CAUTION.

$$

IAZ006-007-016-017-026>028-039-111400-
/O.EXT.KDMX.WS.W.0003.000000T0000Z-161211T1400Z/
WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
BLACK HAWK-
INCLUDING THE CITIES OF FOREST CITY, LAKE MILLS, NORTHWOOD, 
MANLY, GARNER, BRITT, KANAWHA, MASON CITY, CLEAR LAKE, HAMPTON, 
PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON, ALLISON,
DUMONT, WAVERLY, WATERLOO, AND CEDAR FALLS
324 AM CST SUN DEC 11 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 8 AM CST THIS
MORNING...

* SHORT TERM TRENDS...ACCUMULATING SNOWFALL WILL END FROM WEST TO
  EAST EARLY THIS MORNING.

* STORM TOTAL SNOW ACCUMULATIONS...ADDITIONAL SNOWFALL TOTALS OF
  AROUND AN INCH ARE EXPECTED...RESULTING IN STORM TOTAL 
  ACCUMULATIONS OF 4 TO 7 INCHES. 

* WINDS/VISIBILITY...SOUTHEAST WINDS OF 10 TO 15 MPH WILL CAUSE
  VISIBILITIES TO BE REDUCED TO AROUND A MILE AT TIMES. 

* IMPACTS...THE PRIMARY IMPACTS WILL BE VERY HAZARDOUS TRAVEL 
  CONDITIONS DUE TO REDUCED VISIBILITY AND SNOW COVERED AND ICY 
  ROADS. 

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.

&&

$$

LEE
973 
WWUS43 KDMX 111052
WSWDMX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
452 AM CST SUN DEC 11 2016

...ACCUMULATING SNOWFALL HAS ENDED...

.THE SNOW THAT BEGAN YESTERDAY ACROSS NORTHERN IOWA HAS FINALLY
ENDED. LIGHT SNOW MAY STILL FALL AT TIMES THIS MORNING...BUT
LITTLE TO NO ADDITIONAL ACCUMULATION IS EXPECTED.

IAZ006-007-016-017-026>028-039-111200-
/O.CAN.KDMX.WS.W.0003.000000T0000Z-161211T1400Z/
WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-FRANKLIN-BUTLER-BREMER-
BLACK HAWK-
INCLUDING THE CITIES OF FOREST CITY, LAKE MILLS, NORTHWOOD, 
MANLY, GARNER, BRITT, KANAWHA, MASON CITY, CLEAR LAKE, HAMPTON, 
PARKERSBURG, CLARKSVILLE, SHELL ROCK, GREENE, APLINGTON, ALLISON,
DUMONT, WAVERLY, WATERLOO, AND CEDAR FALLS
452 AM CST SUN DEC 11 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE
WINTER STORM WARNING. 

APPROXIMATELY 3 TO 7 INCHES OF SNOW FELL ACROSS PARTS OF NORTHERN
IOWA YESTERDAY AND OVERNIGHT. WHILE LIGHT SNOW MAY STILL FALL AT
TIMES THIS MORNING...LITTLE TO NO ADDITIONAL ACCUMULATION IS
EXPECTED. SOME ROADS MAY REMAIN SLICK SO PLEASE CONTINUE TO USE
CAUTION WHILE DRIVING.

$$

LEE

Nearby

Winter Storm Warnings in Iowa, 2016Every winter storm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.