Alert archive / Iowa / Wind Chill Advisories in 2011
Wind Chill Advisory 1, NWS Des Moines, IA
NWS Des Moines, IA issued this wind chill advisory at Jan 11, 2011, 5:56 PM CST for 19 counties in Iowa. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Jan 11, 2011, 5:56 PM CST (23:56 UTC)
- Expired
- Jan 12, 2011, 9:10 AM CST
- In force
- 15 hr
- Issued by
- NWS Des Moines, IA
Counties Adair County, IA, Adams County, IA, Audubon County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Decatur County, IA, Greene County, IA, Guthrie County, IA, Madison County, IA, Pocahontas County, IA, Ringgold County, IA, Sac County, IA, Taylor County, IA, Union County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 66 km from the middle of the area, began a volume at 23:57 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
Topeka, KS (KTOP), launched 12:00Z, 11.9 hours before the alert went out and 297 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- -59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
782 WWUS43 KDMX 112356 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 556 PM CST TUE JAN 11 2011 ...COLD WIND CHILLS EXPECTED ACROSS WESTERN IOWA TONIGHT THROUGH NOON WEDNESDAY... .A COMBINATION OF BITTER COLD TEMPERATURES AND WINDS TO 15 MPH OVERNIGHT TONIGHT WILL CREATE DANGEROUS WIND CHILL VALUES ACROSS WESTERN IOWA. IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-120800- /O.EXP.KDMX.WW.Y.0002.000000T0000Z-110112T0000Z/ /O.NEW.KDMX.WC.Y.0001.110112T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 556 PM CST TUE JAN 11 2011 ...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST WEDNESDAY... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND CHILL ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST WEDNESDAY. THE WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING. * TIMING...BITTER COLD WIND CHILLS WILL DEVELOP LATE THIS EVENING AS TEMPERATURES DROP BELOW ZERO. * WIND AND WIND CHILL VALUES...WEST TO NORTHWEST WINDS OF 10 TO 20 MPH OVERNIGHT TONIGHT COMBINED WITH SUB ZERO TEMPERATURES AS COLD AS 5 TO 10 BELOW BY MORNING WILL COMBINE TO CREATE WIND CHILL VALUES OF 20 TO 25 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ IAZ004>007-015>017-024>028-035>039-047>050-060>062-073>075- 084>086-096-097-120100- /O.EXP.KDMX.WW.Y.0002.000000T0000Z-110112T0000Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-WEBSTER-HAMILTON-HARDIN- GRUNDY-BLACK HAWK-BOONE-STORY-MARSHALL-TAMA-POLK-JASPER-POWESHIEK- WARREN-MARION-MAHASKA-LUCAS-MONROE-WAPELLO-APPANOOSE-DAVIS- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...HUMBOLDT... CLARION...HAMPTON...ALLISON...WAVERLY...FORT DODGE... WEBSTER CITY...ELDORA...GRUNDY CENTER...WATERLOO...BOONE...AMES... MARSHALLTOWN...TOLEDO...DES MOINES...NEWTON...GRINNELL... INDIANOLA...KNOXVILLE...OSKALOOSA...CHARITON...ALBIA...OTTUMWA... CENTERVILLE...BLOOMFIELD 556 PM CST TUE JAN 11 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING. THE WINTER STORM THAT HAS AFFECTED THE AREA FOR THE PAST 48 CONTINUES TO LOSE ITS GRIP ON THE REGION THOUGH SOME MINOR BLOWING AND DRIFTING OF SNOW IS EXPECTED TONIGHT. THEREFORE THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE. $$ REV
5 follow-up statements
072 WWUS43 KDMX 120250 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 850 PM CST TUE JAN 11 2011 ...COLD WIND CHILLS EXPECTED ACROSS WESTERN IOWA TONIGHT THROUGH NOON WEDNESDAY... .A COMBINATION OF BITTER COLD TEMPERATURES AND WINDS TO 15 MPH WITH HIGHER GUSTS OVERNIGHT TONIGHT WILL CREATE DANGEROUS WIND CHILL VALUES ACROSS WESTERN IOWA. IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-121100- /O.CON.KDMX.WC.Y.0001.000000T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 850 PM CST TUE JAN 11 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY. * TIMING...BITTER COLD WIND CHILLS WILL DEVELOP LATE THIS EVENING AS TEMPERATURES DROP BELOW ZERO. * WIND AND WIND CHILL VALUES...WEST TO NORTHWEST WINDS OF 10 TO 20 MPH OVERNIGHT TONIGHT COMBINED WITH SUB ZERO TEMPERATURES AS COLD AS 5 TO 10 BELOW BY MORNING WILL COMBINE TO CREATE WIND CHILL VALUES OF 20 TO 25 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ AW
699 WWUS43 KDMX 120556 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1156 PM CST TUE JAN 11 2011 ...COLD WIND CHILLS EXPECTED ACROSS WESTERN IOWA TONIGHT THROUGH NOON WEDNESDAY... .A COMBINATION OF BITTER COLD TEMPERATURES AND WINDS TO 15 MPH WITH HIGHER GUSTS OVERNIGHT TONIGHT WILL CREATE DANGEROUS WIND CHILL VALUES ACROSS WESTERN IOWA. IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-121400- /O.CON.KDMX.WC.Y.0001.000000T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 1156 PM CST TUE JAN 11 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST WEDNESDAY. * TIMING...BITTER COLD WIND CHILLS WILL CONTINUE THROUGH THE OVERNIGHT AS TEMPERATURES DROP BELOW ZERO AND WINDS REMAIN BREEZY. * WIND AND WIND CHILL VALUES...WEST TO NORTHWEST WINDS OF 10 TO 20 MPH OVERNIGHT TONIGHT COMBINED WITH SUB ZERO TEMPERATURES AS COLD AS 5 TO 10 BELOW BY MORNING WILL COMBINE TO CREATE WIND CHILL VALUES OF 20 TO 25 BELOW ZERO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ AW
367 WWUS43 KDMX 120938 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 338 AM CST WED JAN 12 2011 ...COLD WIND CHILLS ACROSS WESTERN IOWA THIS MORNING... .A COMBINATION OF BITTER COLD TEMPERATURES AND WINDS OF 10 TO 15 MPH WITH OCCASIONAL HIGHER GUSTS WILL CREATE DANGEROUS WIND CHILL VALUES ACROSS WESTERN IOWA. IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-121745- /O.CON.KDMX.WC.Y.0001.000000T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 338 AM CST WED JAN 12 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. * WIND AND WIND CHILL VALUES...WEST TO NORTHWEST WINDS OF 10 TO 15 MPH COMBINED WITH TEMPERATURES NEAR ZERO WILL COMBINE TO CREATE WIND CHILL VALUES OF 15 TO 20 BELOW ZERO AT TIMES THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ LEE
318 WWUS43 KDMX 121308 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 708 AM CST WED JAN 12 2011 ...COLD WIND CHILLS ACROSS WESTERN IOWA THIS MORNING... .A COMBINATION OF BITTER COLD TEMPERATURES AND WINDS OF 10 TO 15 MPH WITH OCCASIONAL HIGHER GUSTS WILL CREATE DANGEROUS WIND CHILL VALUES ACROSS WESTERN IOWA. IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-121800- /O.CON.KDMX.WC.Y.0001.000000T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 708 AM CST WED JAN 12 2011 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. * WIND AND WIND CHILL VALUES...WEST TO NORTHWEST WINDS OF 10 TO 15 MPH COMBINED WITH TEMPERATURES JUST ABOVE ZERO WILL COMBINE TO CREATE WIND CHILL VALUES OF 15 TO 20 BELOW ZERO AT TIMES THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND GLOVES. && $$ LEE
491 WWUS43 KDMX 121510 WSWDMX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 910 AM CST WED JAN 12 2011 ...NOT AS BRISK WIND CHILLS TODAY... IAZ023-033-034-044>046-057>059-070>072-081>083-092>095-121615- /O.CAN.KDMX.WC.Y.0001.000000T0000Z-110112T1800Z/ POCAHONTAS-SAC-CALHOUN-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE- DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR-WAYNE- INCLUDING THE CITIES OF...POCAHONTAS...SAC CITY...ROCKWELL CITY... DENISON...CARROLL...JEFFERSON...AUDUBON...GUTHRIE CENTER...ADEL... ATLANTIC...GREENFIELD...WINTERSET...CORNING...CRESTON...OSCEOLA... BEDFORD...MOUNT AYR...LEON...CORYDON 910 AM CST WED JAN 12 2011 ...WIND CHILL ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE WIND CHILL ADVISORY. AT 9 AM CST...TEMPERATURES HAVE WARMED TO 5 TO 10 ABOVE ACROSS THE ADVISORY AREA AND HAVE ALLOWED WIND CHILL READINGS TO RISE TO AROUND ZERO TO 10 BELOW. THEREFORE...THE WIND CHILL ADVISORY HAS BEEN CANCELLED. $$ KLP
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Des Moines, IA wrote its last area forecast discussion before this wind chill advisory went out at Jan 11, 3:28 PM CST, 2 hours 28 minutes earlier.
Area forecast discussion, Jan 11, 3:28 PM CST, 2 hours 28 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DES MOINES IA 328 PM CST TUE JAN 11 2011 .SHORT TERM /TONIGHT/... SNOW CONTINUES TO DIMINISH ACROSS CENTRAL IOWA THIS AFTERNOON AS LOW PRESSURE SHIFTS OFF TO THE EAST. VERY LIGHT SNOW IS LIKELY THROUGH THE EARLY EVENING...ESPECIALLY EAST...HOWEVER LITTLE TO NO ADDITIONAL ACCUMULATIONS ARE EXPECTED. A COLD FRONT HAS CUT THROUGH THE WESTERN HALF OF THE STATE WITH GUSTY NORTHWEST WINDS IN ITS WAKE. LOW LEVEL BLOWING SNOW IS OCCURRING WITH THE GUSTY WINDS THOUGH THE BLOWING SNOW IS REMAINING LOW LEVEL AND NOT BECOMING LOFTED. REGARDLESS...THE IA DOT REPORTS SNOW COVERED ROADS OVER MUCH OF THE AREA DUE TO THE BLOWING SNOW THUS WILL KEEP THE WINTER WEATHER ADVISORY INTACT THROUGH 00Z. VERY COLD AIR IS ALSO MOVING IN BEHIND THE FRONT WITH TEMPERATURES IN THE SINGLE DIGITS OVER WESTERN IOWA TONIGHT. PROFILES REMAIN MIXED TONIGHT WITH BLUSTERY NORTHWEST WINDS CONTINUING. SHOULD MAINTAIN SOME CLOUDS AROUND OVER THE CENTRAL AND EASTERN SECTIONS AS WELL THUS COOLING WILL BE MORE DUE TO COLD ADVECTION THAN DIURNAL OR RADIATIVE EFFECTS TONIGHT AND THIS WILL KEEP TEMPERATURES UP SO TO SPEAK. STILL EXPECT READINGS TO FALL BELOW ZERO OVER THE WEST AND COMBINED WITH NORTHWEST WINDS AT 10 TO 15 MPH...WILL PUSH WIND CHILL READINGS TO 20 TO 25 BELOW ZERO LATE THIS EVENING. WILL NOT DOUBLE HEADLINES AT THIS TIME BUT EXPECT A WIND CHILL ADVISORY OVER THE WEST AFTER THE CURRENT HEADLINE EXPIRES. .LONG TERM /WEDNESDAY THROUGH TUESDAY/...SEVERAL SHORTWAVES TO CONTEND WITH DURING THE EXTENDED BUT WITH NO MAJOR WINTER STORMS ON THE HORIZON. MODELS ARE IN FAIRLY GOOD AGREEMENT THROUGH THE END OF THE WORK WEEK BEFORE SOME NOTICEABLE DISCREPANCIES BEGIN TO SHOW UP DURING THE WEEKEND INTO NEXT WEEK. WENT WITH A BLEND OF NAM/GFS WEDNESDAY INTO FRIDAY...AND MORE OF A PREVIOUS FORECAST/GFS BLEND DURING THE WEEKEND INTO EARLY NEXT WEEK. WEDNESDAY AND THURSDAY...ARCTIC HIGH PRESSURE MOVES ACROSS THE REGION DURING THIS TIME FRAME WITH COLDEST NIGHT OF THE PERIOD WEDNESDAY NIGHT. CONCERN IS WITH HIGH CLOUDS PUSHING INTO THE STATE WITH SOME THETA-E ADVECTION WITH APPROACHING SHORTWAVE TROUGH OUT OF THE NORTHERN ROCKIES. SO TRENDED TOWARD A WARMER FORECAST EVEN THOUGH WITH THE ARCTIC HIGH IN PLACE. WINDS WILL BE WEAK ENOUGH TO NOT WARRANT ANY WIND CHILL HEADLINES. QUICK MOVING SHORTWAVE EJECTS OUT OF THE NORTHERN ROCKIES AND PUSHES ACROSS THE DAKOTAS INTO MINNESOTA THURSDAY AND THURSDAY NIGHT. ECMWF IS FURTHER NORTH WITH QPF AND TRACK OF VORT MAX...BUT NAM/SREF/GFS ARE CONSISTENT WITH BRINGING NORTHERN IOWA SOME LIGHT SNOW THURSDAY AFTERNOON AND EVENING. FORECAST SOUNDINGS DO NOT STAY SATURATED FOR A VERY LONG PERIOD AND EVEN LOSE ICE INTRODUCTION THURSDAY NIGHT. SO CANNOT RULE OUT THE POTENTIAL FOR FREEZING DRIZZLE BY THURSDAY EVENING ACROSS THE NORTH. HOWEVER...WITH THE LOW POPS GOING FELT CONFIDENT TO LEAVE OUT MENTION OF FZDZ OF FORECAST ATTM. FRIDAY THROUGH SUNDAY...WENT DRY FRIDAY DURING THE DAY AS CWA IS IN BETWEEN SHORTWAVES AS TIMING OF SECOND WAVE IS NOT UNTIL FRIDAY NIGHT INTO EARLY SATURDAY. THIS SECOND MORE POTENT SHORTWAVE BRINGS SOME STRONG CAA INTO THE STATE BY SATURDAY MORNING. HAVE INCREASED WINDS SATURDAY AND MENTIONED BLOWING SNOW POTENTIAL WITH FRESH SNOW PACK AND SMALL POPS GOING. WINDS ATOP THE MIXED LAYER ARE ROUGHLY 30 KTS AND SHOULD BE ENOUGH TO CAUSE SOME BLOWING AND DRIFTING SNOW. A THIRD WEAKER SHORTWAVE CUTS SOUTH ACROSS SE NEBRASKA INTO MISSOURI LATE SATURDAY NIGHT INTO SUNDAY. KEPT WITH MENTION OF SMALL POPS OVER THE SOUTHERN PORTIONS OF THE CWA DURING THIS TIME. MONDAY AND TUESDAY...ARCTIC HIGH BUILDS INTO THE STATE AND DEPENDING ON WHICH MODEL...IT STICKS AROUND FOR MUCH OF THE WEEK OR PUSHES EASTWARD DUE TO ANOTHER STRONG UPPER LEVEL LOW PUSHING ACROSS THE STATE BY TUESDAY. 12Z GFS HAS THIS AFOREMENTIONED UPPER LOW TRACKING INTO NORTHERN MISSOURI BY TUESDAY...BUT THIS SEEMS TO BE THE FIRST MENTION OF IT FROM THE GFS AND KEPT THE FORECAST DRY ATTM. SO WITH THE DRY FORECAST...VERY COLD TEMPS LOOK TO BE IN PLACE THROUGH THE MIDDLE OF NEXT WEEK. && .AVIATION...11/18Z SNOW CONTINUES TO DIMINISH ACROSS THE AREA THOUGH INCREASING NW WINDS WILL KEEP IFR/MVFR VSBYS DUE TO BLOWING SNOW THROUGH THIS AFTERNOON. SOME BRIEF BREAKS TO VFR SKIES HOWEVER EXPECTED MVFR CIGS TO PREVAIL MUCH OF THE PERIOD THEREFORE WILL BE CARRIED AS PREVAILING. GUSTY NW WINDS WILL CONTINUE THROUGH THE PERIOD THOUGH THE BLOWING SNOW SHOULD SUBSIDED WITH VSBYS BECOMING VFR OVERNIGHT. && .DMX WATCHES/WARNINGS/ADVISORIES... WINTER WEATHER ADVISORY UNTIL 6 PM CST THIS EVENING FOR ADAIR- ADAMS-APPANOOSE-AUDUBON-BLACK HAWK-BOONE-BREMER-BUTLER-CALHOUN- CARROLL-CASS-CERRO GORDO-CLARKE-CRAWFORD-DALLAS-DAVIS-DECATUR- EMMET-FRANKLIN-GREENE-GRUNDY-GUTHRIE-HAMILTON-HANCOCK-HARDIN- HUMBOLDT-JASPER-KOSSUTH-LUCAS-MADISON-MAHASKA-MARION-MARSHALL- MONROE-PALO ALTO-POCAHONTAS-POLK-POWESHIEK-RINGGOLD-SAC-STORY- TAMA-TAYLOR-UNION-WAPELLO-WARREN-WAYNE-WEBSTER-WINNEBAGO-WORTH- WRIGHT. && SHORT TERM...DONAVON LONG TERM...PODRAZIK AVIATION...DONAVON
Hazardous weather outlook, Jan 11, 5:36 AM CST, 12 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 536 AM CST TUE JAN 11 2011 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-121200- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE- BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER- POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-ADAMS-UNION- CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE- DAVIS- 536 AM CST TUE JAN 11 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...TODAY AND TONIGHT A WINTER WEATHER ADVISORY IS IN EFFECT FOR ALL OF CENTRAL IOWA. PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR FURTHER DETAILS. GUSTY NORTHWEST WINDS WILL OVERSPREAD THE STATE TODAY...CAUSING CONSIDERABLE DRIFTING AND SOME BLOWING SNOW. THE WINDS WILL CONTINUE TONIGHT. WINDS COMBINED WITH COLD OVERNIGHT LOWS MAY REQUIRE A WIND CHILL ADVISORY FOR PARTS OF THE STATE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE WILL BE A CHANCE OF SNOW AGAIN OVER THE NORTH FRIDAY...AND ACROSS ALL OF THE STATE FRIDAY NIGHT INTO SUNDAY. MIXED PRECIPITATION IS POSSIBLE OVER THE SOUTH. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...HOWEVER SNOWFALL REPORTS ARE ENCOURAGED.
In the hours before
Local storm report, Jan 11, 12:11 PM CST, 5 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1211 PM CST TUE JAN 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM SNOW RINGSTED 43.30N 94.51W
01/11/2011 M12.0 INCH EMMET IA CO-OP OBSERVER
&&
JHLocal storm report, Jan 11, 4:07 PM CST, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
407 PM CST TUE JAN 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 PM SNOW 1 SW OTTUMWA 41.01N 92.43W
01/11/2011 M6.5 INCH WAPELLO IA TRAINED SPOTTER
STORM TOTAL ACCUMULATION.
&&
PODRAZIKNearby
Wind Chill Advisories in Iowa, 2011Every wind chill advisory in 2011
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.