Alert archive / South Dakota / Wind Advisories in 2009
Wind Advisory 4, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this wind advisory at Mar 24, 2009, 3:25 AM CDT for 16 counties in South Dakota; Dakota County, Dixon County, Nebraska; Plymouth County, Woodbury County, Iowa. It took effect at Mar 24, 2009, 7:00 AM CDT. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Mar 24, 2009, 3:25 AM CDT (08:25 UTC)
- In effect from
- Mar 24, 2009, 7:00 AM CDT
- Expired
- Mar 25, 2009, 12:00 AM CDT
- In force
- 17 hr
- Issued by
- NWS Sioux Falls, SD
Counties Plymouth County, IA, Woodbury County, IA, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 87 km from the middle of the area, began a volume at 08:26 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
Aberdeen, SD (KABR), launched 00:00Z, 8.4 hours before the alert went out and 189 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
- 28 J/kg
- Mixed-layer CIN
- -201 J/kg
- Mixed-layer LCL
- 516 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 262 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS73 KFSD 240825 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 325 AM CDT TUE MAR 24 2009 .A POTENT SPRING STORM SYSTEM WILL SWING A COLD FRONT THROUGH THE AREA TODAY. THIS WILL TURN WINDS TO THE NORTHWEST AND INCREASE THEM TO 25 TO 35 MPH WITH GUSTS TO 45 MPH AT TIMES. THE STRONGEST WINDS SHOULD BE LATE THIS MORNING INTO THE LATE AFTERNOON. SDZ050-057-063-241630- /O.NEW.KFSD.WI.Y.0004.090324T1200Z-090325T0000Z/ GREGORY-BRULE-CHARLES MIX- INCLUDING THE CITIES OF...GREGORY...BURKE...CHAMBERLAIN... KIMBALL...WAGNER...PLATTE...LAKE ANDES...MARTY 325 AM CDT TUE MAR 24 2009 ...WIND ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM CDT THIS EVENING. NORTHWEST WINDS WILL GRADUALLY INCREASE THROUGH THE MORNING...BECOMING SUSTAINED AT 25 TO 35 MPH WITH GUSTS TO AROUND 45 MPH. THE STRONGEST WINDS SHOULD BE LATE THIS MORNING INTO THE AFTERNOON...BEFORE DECREASING SOME AFTER SUNSET. AS COLDER AIR FILTERS IN...PATCHY SNOW SHOWERS WILL BECOME POSSIBLE AND COULD AT TIMES REDUCE THE VISIBILITY TO AROUND A MILE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ SDZ058>060-064-065-068-069-241630- /O.NEW.KFSD.WI.Y.0004.090324T1700Z-090325T0100Z/ AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON- INCLUDING THE CITIES OF...PLANKINTON...WHITE LAKE...STICKNEY... MITCHELL...ALEXANDRIA...EMERY...ARMOUR...CORSICA...DELMONT... PARKSTON...FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON 325 AM CDT TUE MAR 24 2009 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING. NORTHWEST WINDS WILL GRADUALLY INCREASE THROUGH THE MORNING...BECOMING SUSTAINED AT 25 TO 35 MPH WITH GUSTS TO AROUND 45 MPH. THE STRONGEST WINDS SHOULD BE LATE THIS MORNING INTO THE AFTERNOON...BEFORE DECREASING SOME AFTER SUNSET. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$
4 follow-up statements
000 WWUS73 KFSD 241556 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1056 AM CDT TUE MAR 24 2009 .STRONG LOW PRESSURE WILL MOVE THROUGH SOUTHEAST SOUTH DAKOTA AND SOUTHWEST MINNESOTA TODAY. ON THE BACKSIDE OF THIS LOW...THE WEST TO NORTHWEST WINDS WILL BECOME QUITE STRONG AS YOU APPROACH SOUTH CENTRAL SOUTH DAKOTA AND IN EXTREME SOUTHEAST SOUTH DAKOTA... BASICALLY ALONG AND WEST OF THE LOWER JAMES RIVER VALLEY. AS THE AFTERNOON PROGRESSES...COLDER AIR WILL CONTINUE TO USHER IN FROM THE WEST. THIS WILL CHANGE THE THREAT OF RAIN OVER TO SNOW...OR A LIGHT RAIN AND SNOW MIX. SNOW ACCUMULATIONS SHOULD STAY NEAR AN INCH OR LESS HOWEVER. ACCUMULATING SNOW WILL BE HEAVIER IN CHARLES MIX AND GREGORY COUNTIES. SDZ050-063-241700- /O.CAN.KFSD.WI.Y.0004.000000T0000Z-090325T0000Z/ GREGORY-CHARLES MIX- INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE... LAKE ANDES...MARTY 1056 AM CDT TUE MAR 24 2009 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS CANCELLED THE WIND ADVISORY. THE WIND ADVISORY HAS BEEN CANCELLED IN FAVOR OF A WINTER WEATHER ADVISORY DUE TO SNOW AND BLOWING SNOW. $$ SDZ057-250000- /O.CON.KFSD.WI.Y.0004.000000T0000Z-090325T0000Z/ BRULE- INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL 1056 AM CDT TUE MAR 24 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. NORTHWEST WINDS WILL AVERAGE 25 TO 45 MPH IN THE LOWER BRULE AREA. THE WINDS WILL THEN BEGIN TO SUBSIDE JUST BEFORE SUNSET. BE AWARE THAT RAIN WILL LIKELY CHANGE TO SNOW AS THE AFTERNOON PROGRESSES... WITH ACCUMULATIONS AROUND AN INCH. THIS COULD CREATE DIFFICULT DRIVING CONDITIONS AT TIMES DUE TO THE STRONG WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ SDZ058>060-064-065-068-069-250000- /O.CON.KFSD.WI.Y.0004.090324T1700Z-090325T0100Z/ AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON- INCLUDING THE CITIES OF...PLANKINTON...WHITE LAKE...STICKNEY... MITCHELL...ALEXANDRIA...EMERY...ARMOUR...CORSICA...DELMONT... PARKSTON...FREEMAN...MENNO...TRIPP...TYNDALL...SCOTLAND... SPRINGFIELD...AVON...TABOR...YANKTON 1056 AM CDT TUE MAR 24 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING. SOUTHERLY WINDS WILL GRADUALLY BECOME NORTHWEST AS THE AFTERNOON PROGRESSES...AND WILL INCREASE TO A SUSTAINED 25 TO 35 MPH WITH GUSTS TO AROUND 45 MPH. THE STRONGEST WINDS WILL OCCUR FROM MID AFTERNOON TO MID EVENING. THEY WILL THEN BEGIN TO DECREASE AFTER SUNSET. LIGHT RAIN WILL ALSO BECOME LIKELY AS THE AFTERNOON PROGRESSES...WHICH WILL PROBABLY CHANGEOVER TO LIGHT SNOW... OR A RAIN AND SNOW MIX BY MID AND LATE AFTERNOON. ANY SNOW ACCUMULATIONS SHOULD BE MINIMAL AT LESS THAN AN INCH. HOWEVER BE AWARE...THAT WITH THESE KINDS OF WIND SPEEDS...THAT ANY FALLING LIGHT SNOW WILL CREATE REDUCED VISIBILITIES IN RURAL AREAS AND AREAS OF POOR DRIVING CONDITIONS ON YOUR COMMUTE HOME FROM WORK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ MJF
000 WWUS73 KFSD 242001 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 301 PM CDT TUE MAR 24 2009 .STRONG LOW PRESSURE OVER WESTERN MINNESOTA LATE THIS AFTERNOON WILL CONTINUE TO MOVE NORTHEAST ACROSS MINNESOTA TONIGHT. VERY STRONG NORTHWEST WINDS WILL CONTINUE ON THE BACKSIDE OF THIS SYSTEM ACROSS THE AREA...WITH WIND GUSTS TO 40 MPH AT TIMES. IAZ020-031-NEZ013-014-SDZ038-052-053-066-070-071-250415- /O.EXB.KFSD.WI.Y.0004.090324T2100Z-090325T0500Z/ PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-JERAULD-SANBORN-TURNER-CLAY- UNION- INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...HURON...WESSINGTON SPRINGS... ALPENA...WOONSOCKET...PARKER...CENTERVILLE...MARION...VIBORG... HURLEY...CHANCELLOR...VERMILLION...NORTH SIOUX CITY...BERESFORD... ELK POINT...ALCESTER...JEFFERSON 301 PM CDT TUE MAR 24 2009 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT. NORTHWEST WINDS OF 25 TO 40 MPH WILL PERSIST INTO THE EVENING HOURS...GRADUALLY DECREASING AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ SDZ057>060-064-065-068-069-250415- /O.EXT.KFSD.WI.Y.0004.000000T0000Z-090325T0500Z/ BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON- INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON... WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR... CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 301 PM CDT TUE MAR 24 2009 ...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... THE WIND ADVISORY IS NOW IN EFFECT UNTIL MIDNIGHT CDT TONIGHT. NORTHWEST WINDS OF 20 TO 40 MPH WILL PERSIST INTO THE EVENING HOURS...GRADUALLY DECREASING AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$
000 WWUS73 KFSD 242358 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 658 PM CDT TUE MAR 24 2009 .STRONG LOW PRESSURE OVER WESTERN MINNESOTA THIS EVENING WILL CONTINUE TO MOVE NORTHEAST ACROSS MINNESOTA TONIGHT. VERY STRONG NORTHWEST WINDS WILL CONTINUE ON THE BACKSIDE OF THIS SYSTEM ACROSS THE AREA...WITH WIND GUSTS TO 40 MPH AT TIMES. SDZ050-063-250500- /O.EXB.KFSD.WI.Y.0004.090325T0000Z-090325T0500Z/ GREGORY-CHARLES MIX- INCLUDING THE CITIES OF...GREGORY...BURKE...WAGNER...PLATTE... LAKE ANDES...MARTY 658 PM CDT TUE MAR 24 2009 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT. NORTHWEST WINDS OF 25 TO 40 MPH WILL PERSIST INTO THE EVENING HOURS...GRADUALLY DECREASING AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ SDZ057>060-064-065-068-069-250500- /O.CON.KFSD.WI.Y.0004.000000T0000Z-090325T0500Z/ BRULE-AURORA-DAVISON-HANSON-DOUGLAS-HUTCHINSON-BON HOMME-YANKTON- INCLUDING THE CITIES OF...CHAMBERLAIN...KIMBALL...PLANKINTON... WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...ARMOUR... CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON 658 PM CDT TUE MAR 24 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT. NORTHWEST WINDS OF 20 TO 40 MPH WILL PERSIST INTO THE EVENING HOURS...GRADUALLY DECREASING AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$ IAZ020-031-NEZ013-014-SDZ038-052-053-066-070-071-250500- /O.CON.KFSD.WI.Y.0004.000000T0000Z-090325T0500Z/ PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-JERAULD-SANBORN-TURNER-CLAY- UNION- INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...HURON...WESSINGTON SPRINGS... ALPENA...WOONSOCKET...PARKER...CENTERVILLE...MARION...VIBORG... HURLEY...CHANCELLOR...VERMILLION...NORTH SIOUX CITY...BERESFORD... ELK POINT...ALCESTER...JEFFERSON 658 PM CDT TUE MAR 24 2009 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... A WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT. NORTHWEST WINDS OF 25 TO 40 MPH WILL PERSIST INTO THE EVENING HOURS...GRADUALLY DECREASING AFTER MIDNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE 31 TO 39 MPH OR GUSTS WILL RANGE BETWEEN 46 AND 57 MPH. WINDS OF THESE MAGNITUDES MAY CAUSE MINOR PROPERTY DAMAGE WITHOUT EXTRA PRECAUTIONS. MOTORISTS IN HIGH PROFILE VEHICLES SHOULD USE CAUTION UNTIL THE WINDS SUBSIDE. && $$
000 WWUS73 KFSD 250519 NPWFSD URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1219 AM CDT WED MAR 25 2009 IAZ020-031-NEZ013-014-SDZ038-050-052-053-057>060-063>066-068>071- 250630- /O.EXP.KFSD.WI.Y.0004.000000T0000Z-090325T0500Z/ PLYMOUTH-WOODBURY-DIXON-DAKOTA-BEADLE-GREGORY-JERAULD-SANBORN- BRULE-AURORA-DAVISON-HANSON-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER- BON HOMME-YANKTON-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...SIOUX CITY...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... PARKER...CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON... VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 1219 AM CDT WED MAR 25 2009 ...WIND ADVISORY HAS EXPIRED... THE WIND ADVISORY IS NO LONGER IN EFFECT. WHILE ISOLATED GUSTS TO NEAR 40 MPH WILL BE POSSIBLE THROUGH THE LATE NIGHT HOURS...WINDS SHOULD GENERALLY REMAIN BELOW ADVISORY CRITERIA. $$
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 10:45 AM CDT | Winter Weather Advisory | FSD | Charles Mix, Gregory | 8 hr |
| Mar 23, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 30 min |
| Mar 23, 9:03 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 30 min |
Nearby
Wind Advisories in South Dakota, 2009Wind Advisories in Nebraska, 2009Wind Advisories in Iowa, 2009Every wind advisory in 2009
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.