Alert archive / Iowa / Wind Advisories in 2011
Wind Advisory 2, NWS Des Moines, IA
NWS Des Moines, IA issued this wind advisory at Mar 11, 2011, 3:20 PM CST for 15 counties in Iowa. It took effect at Mar 12, 2011, 12:00 AM CST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Mar 11, 2011, 3:20 PM CST (21:20 UTC)
- In effect from
- Mar 12, 2011, 12:00 AM CST
- Expired
- Mar 12, 2011, 12:00 PM CST
- In force
- 12 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, Pocahontas County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The radar
The Des Moines radar (KDMX), 134 km from the middle of the area, began a volume at 21:26 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
Minneapolis, MN (KMPX), launched 12:00Z, 9.3 hours before the alert went out and 214 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
- 1547 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
100 WWUS73 KDMX 112120 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 320 PM CST FRI MAR 11 2011 ...WINDY CONDITIONS WILL SPREAD ACROSS NORTHERN IOWA TONIGHT... .A LOW PRESSURE SYSTEM WILL DEEPEN AS IT MOVES ACROSS MINNESOTA AND WISCONSIN TONIGHT...RESULTING IN SHIFTING AND STRENGTHENING WINDS ACROSS NORTHERN IOWA ESPECIALLY DURING THE EARLY TO MID MORNING HOURS ON SATURDAY. IAZ004>007-015>017-023>028-038-039-120530- /O.NEW.KDMX.WI.Y.0002.110312T0600Z-110312T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY... GRUNDY CENTER...WATERLOO 320 PM CST FRI MAR 11 2011 ...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SATURDAY... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SATURDAY. * TIMING: WINDS WILL SHIFT TO WEST THIS EVENING THEN CLOSER TO NORTHWEST OVERNIGHT...WITH SPEEDS INCREASING STEADILY THROUGHOUT. THE STRONGEST WINDS WILL OCCUR DURING THE EARLY TO MID MORNING HOURS ON SATURDAY. * WINDS: THE WEST TO NORTHWEST WINDS WILL REACH SUSTAINED SPEEDS OF NEAR 30 MPH WITH GUSTS TO AROUND 45 MPH. * IMPACTS: THE STRONG AND GUSTY WINDS MAY AFFECT HIGH PROFILE VEHICLES...ESPECIALLY ON NORTH SOUTH ROADS. SMALL BRANCHES MAY BREAK AND LOOSE UNANCHORED OBJECTS MAY BE MOVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ LEE
4 follow-up statements
911 WWUS73 KDMX 120249 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 849 PM CST FRI MAR 11 2011 ...WINDY CONDITIONS WILL SPREAD ACROSS NORTHERN IOWA OVERNIGHT.. .A LOW PRESSURE SYSTEM WILL DEEPEN AS IT MOVES ACROSS MINNESOTA AND WISCONSIN TONIGHT...RESULTING IN SHIFTING AND STRENGTHENING WINDS ACROSS NORTHERN IOWA ESPECIALLY DURING THE EARLY TO MID MORNING HOURS ON SATURDAY. IAZ004>007-015>017-023>028-038-039-121100- /O.CON.KDMX.WI.Y.0002.110312T0600Z-110312T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY... GRUNDY CENTER...WATERLOO 849 PM CST FRI MAR 11 2011 ...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SATURDAY... A WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON CST SATURDAY. * TIMING: WINDS WILL SHIFT FROM THE WEST TO NORTHWEST OVERNIGHT...WITH SPEEDS INCREASING STEADILY THROUGHOUT THE OVERNIGHT. THE STRONGEST WINDS WILL OCCUR DURING THE EARLY TO MID MORNING HOURS ON SATURDAY. * WINDS: WEST TO NORTHWEST WINDS WILL REACH SUSTAINED SPEEDS OF NEAR 30 MPH WITH GUSTS TO AROUND 45 MPH. * IMPACTS: THE STRONG AND GUSTY WINDS MAY AFFECT HIGH PROFILE VEHICLES...ESPECIALLY ON NORTH SOUTH ROADS. SMALL BRANCHES MAY BREAK...AND LOOSE UNANCHORED OBJECTS MAY BE MOVED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ AW
833 WWUS73 KDMX 120655 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1255 AM CST SAT MAR 12 2011 ...WINDY CONDITIONS EXPECTED ACROSS NORTHERN IOWA THIS MORNING... .A LOW PRESSURE SYSTEM LOCATED OVER NORTHERN MINNESOTA WILL CONTINUE TO PUSH EASTWARD INTO NORTHERN WISCONSIN AND UPPER PENINSULA OF MICHIGAN. A VERY SHARP PRESSURE GRADIENT WILL LEAD TO STRONG NORTHWEST WINDS THROUGHOUT THE ENTIRE MORNING HOURS BEFORE DIMINISHING BY THE EARLY AFTERNOON TODAY. IAZ004>007-015>017-023>028-038-039-121500- /O.CON.KDMX.WI.Y.0002.000000T0000Z-110312T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY... GRUNDY CENTER...WATERLOO 1255 AM CST SAT MAR 12 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. * SHORT TERM TRENDS: THE STRONGEST SUSTAINED WINDS AND GUSTS WILL OCCUR DURING THE EARLY TO MID MORNING HOURS TODAY...GENERALLY FROM AROUND 1 AM CST TO 8 AM CST THIS MORNING. * WINDS: WEST TO NORTHWEST WINDS WILL REACH SUSTAINED SPEEDS OF NEAR 30 MPH WITH GUSTS TO AROUND 45 MPH. * IMPACTS: THE STRONG AND GUSTY WINDS ARE LIKELY TO AFFECT HIGH PROFILE VEHICLES...ESPECIALLY ON NORTH SOUTH ORIENTED ROADS. SMALL BRANCHES MAY BREAK...AND LOOSE OBJECTS MAY BE BLOWN AROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ KLP
244 WWUS73 KDMX 121303 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 703 AM CST SAT MAR 12 2011 ...WINDY CONDITIONS TO CONTINUE THROUGH THE MORNING HOURS... .A LOW PRESSURE SYSTEM LOCATED OVER THE GREAT LAKES WILL CONTINUE TO PRODUCE STRONG NORTHWEST WINDS ACROSS STATE THROUGH THE EARLY AFTERNOON HOURS...WITH THE STRONGEST WINDS LOCATED IN NORTHERN IOWA. IAZ004>007-015>017-023>028-038-039-121800- /O.CON.KDMX.WI.Y.0002.000000T0000Z-110312T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY... GRUNDY CENTER...WATERLOO 703 AM CST SAT MAR 12 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... A WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. * SHORT TERM TRENDS: STRONG GUSTY WINDS WILL PERSIST THROUGH THE REMAINDER OF THE MORNING HOURS. * WINDS: SUSTAINED NORTHWEST WINDS WILL RANGE FROM 25 TO 35 MPH WITH WIND GUSTS REACHING SPEEDS TO NEAR 45 MPH. * IMPACTS: THE STRONG AND GUSTY WINDS ARE LIKELY TO AFFECT HIGH PROFILE VEHICLES...ESPECIALLY ON NORTH SOUTH ORIENTED ROADS. SMALL BRANCHES MAY BREAK...AND LOOSE OBJECTS MAY BE BLOWN AROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 30 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ KLP
002 WWUS73 KDMX 121759 NPWDMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1159 AM CST SAT MAR 12 2011 .A MODERATE TO STRONG PRESSURE GRADIENT WILL REMAIN OVER THE STATE THIS AFTERNOON AS LOW PRESSURE OVER NORTHERN LOWER MICHIGAN MOVES EAST AND HIGH PRESSURE BUILDS INTO IOWA FROM THE NORTHWEST. IAZ004>007-015>017-023>028-038-039-121900- /O.EXP.KDMX.WI.Y.0002.000000T0000Z-110312T1800Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-GRUNDY- BLACK HAWK- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS... HUMBOLDT...CLARION...HAMPTON...ALLISON...WAVERLY... GRUNDY CENTER...WATERLOO 1159 AM CST SAT MAR 12 2011 ...WIND ADVISORY WILL EXPIRE AT NOON CST TODAY... THE WIND ADVISORY WILL EXPIRE AT NOON CST TODAY. WINDS WILL DIMINISH SLOWLY THROUGH THE AFTERNOON. NORTHWEST WINDS OF 20 TO 30 MPH...WITH OCCASIONAL GUSTS TO 35 TO 40 MPH ARE EXPECTED THROUGH THE EARLY AFTERNOON. WINDS WILL DECREASE THROUGH THE AFTERNOON AND WILL BE IN THE 15 TO 20 MPH RANGE BY LATE AFTERNOON. $$
Nearby
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.