Alert archive / South Dakota / Wind Advisories in 2017

Wind Advisory 12, NWS Sioux Falls, SD

December 12, 20174 states

NWS Sioux Falls, SD issued this wind advisory at Dec 12, 2017, 2:43 PM CST for 4 states. It took effect at Dec 13, 2017, 4:00 AM CST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Dec 12, 2017, 2:43 PM CST (20:43 UTC)
In effect from
Dec 13, 2017, 4:00 AM CST
Expired
Dec 13, 2017, 5:41 PM CST
In force
14 hr
Issued by
NWS Sioux Falls, SD
All 45 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings 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, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 16 km from the middle of the area, began a volume at 20:42 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 12:00Z, 8.7 hours before the alert went out and 202 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, Aberdeen, SD at 12:00Z on 2017-12-12Temperature 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, Aberdeen, SD at 12:00Z on 2017-12-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 square meters per square second.1939587897117Sfc1 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
623 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
328 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

236 
WWUS73 KFSD 122043
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
243 PM CST Tue Dec 12 2017


SDZ038-050-052-053-057>059-063-064-130645-
/O.NEW.KFSD.WI.Y.0012.171213T1000Z-171213T2100Z/
Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-
Douglas-
243 PM CST Tue Dec 12 2017

...WIND ADVISORY IN EFFECT FROM 4 AM TO 3 PM CST WEDNESDAY...

The National Weather Service in Sioux Falls has issued a Wind
Advisory, which is in effect from 4 AM to 3 PM CST Wednesday. 

* TIMING...Winds increase prior to daybreak Wednesday and slowly
  diminish Wednesday afternoon.

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will
  be possible.

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

MNZ071-097-SDZ039-040-054>056-060>062-065-066-068-069-130645-
/O.NEW.KFSD.WI.Y.0012.171213T1200Z-171213T2100Z/
Lincoln MN-Pipestone-Kingsbury-Brookings-Miner-Lake-Moody-Hanson-
McCook-Minnehaha-Hutchinson-Turner-Bon Homme-Yankton-
243 PM CST Tue Dec 12 2017

...WIND ADVISORY IN EFFECT FROM 6 AM TO 3 PM CST WEDNESDAY...

The National Weather Service in Sioux Falls has issued a Wind
Advisory, which is in effect from 6 AM to 3 PM CST Wednesday. 

* TIMING...Winds increase prior to daybreak Wednesday and slowly
  diminish Wednesday afternoon.

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will
  be possible.

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

IAZ001>003-012>014-020>022-031-032-MNZ072-080-081-089-090-098-
NEZ013-014-SDZ067-070-071-130645-
/O.NEW.KFSD.WI.Y.0012.171213T1200Z-171214T0000Z/
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Rock-Dixon-Dakota-Lincoln SD-Clay SD-Union-
243 PM CST Tue Dec 12 2017

...WIND ADVISORY IN EFFECT FROM 6 AM TO 6 PM CST WEDNESDAY...

The National Weather Service in Sioux Falls has issued a Wind
Advisory, which is in effect from 6 AM to 6 PM CST Wednesday. 

* TIMING...Winds increase after daybreak Wednesday and slowly 
  diminish late Wednesday afternoon.

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will
  be possible.

* IMPACTS...Lightweight and high-profile vehicles will be
  impacted, especially on east-west roads such as Interstate 90
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
6 follow-up statements
029 
WWUS73 KFSD 130221
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
821 PM CST Tue Dec 12 2017

SDZ038-050-052-053-057>059-063-064-131030-
/O.CON.KFSD.WI.Y.0012.171213T1000Z-171213T2100Z/
Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-
Douglas-
821 PM CST Tue Dec 12 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 3 PM CST
WEDNESDAY...

* TIMING...Winds are expected to increase prior to daybreak 
  Wednesday and slowly diminish Wednesday afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

MNZ071-097-SDZ039-040-054>056-060>062-065-066-068-069-131030-
/O.CON.KFSD.WI.Y.0012.171213T1200Z-171213T2100Z/
Lincoln MN-Pipestone-Kingsbury-Brookings-Miner-Lake-Moody-Hanson-
McCook-Minnehaha-Hutchinson-Turner-Bon Homme-Yankton-
821 PM CST Tue Dec 12 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM TO 3 PM CST
WEDNESDAY...

* TIMING...Winds are expected to increase prior to daybreak 
  Wednesday and slowly diminish Wednesday afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

IAZ001>003-012>014-020>022-031-032-MNZ072-080-081-089-090-098-
NEZ013-014-SDZ067-070-071-131030-
/O.CON.KFSD.WI.Y.0012.171213T1200Z-171214T0000Z/
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Rock-Dixon-Dakota-Lincoln SD-Clay SD-Union-
821 PM CST Tue Dec 12 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM TO 6 PM CST
WEDNESDAY...

* TIMING...Winds are expected to increase after daybreak 
  Wednesday and slowly diminish late Wednesday afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
381 
WWUS73 KFSD 130853
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
253 AM CST Wed Dec 13 2017


SDZ038-050-052-053-057>059-063-064-131700-
/O.CON.KFSD.WI.Y.0012.171213T1000Z-171213T2100Z/
Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-
Douglas-
253 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...Winds are expected to increase prior to daybreak and
  slowly diminish this afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

MNZ071-097-SDZ039-040-054>056-060>062-065-066-068-069-131700-
/O.CON.KFSD.WI.Y.0012.171213T1200Z-171213T2100Z/
Lincoln MN-Pipestone-Kingsbury-Brookings-Miner-Lake-Moody-Hanson-
McCook-Minnehaha-Hutchinson-Turner-Bon Homme-Yankton-
253 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 3 PM
CST THIS AFTERNOON...

* TIMING...Winds are expected to increase prior to daybreak and
  slowly diminish this afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

IAZ001>003-012>014-020>022-031-032-MNZ072-080-081-089-090-098-
NEZ013-014-SDZ067-070-071-131700-
/O.CON.KFSD.WI.Y.0012.171213T1200Z-171214T0000Z/
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Rock-Dixon-Dakota-Lincoln SD-Clay SD-Union-
253 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 6 PM
CST THIS EVENING...

* TIMING...Winds are expected to increase after daybreak and
  slowly diminish late this afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
415 
WWUS73 KFSD 131610
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
1010 AM CST Wed Dec 13 2017


SDZ038-050-052-053-057>059-063-064-132100-
/O.CON.KFSD.WI.Y.0012.000000T0000Z-171213T2100Z/
Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix-
Douglas-
1010 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...Strong winds will slowly diminish this afternoon.
  

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

MNZ071-097-SDZ039-040-054>056-060>062-065-066-068-069-132100-
/O.CON.KFSD.WI.Y.0012.000000T0000Z-171213T2100Z/
Lincoln MN-Pipestone-Kingsbury-Brookings-Miner-Lake-Moody-Hanson-
McCook-Minnehaha-Hutchinson-Turner-Bon Homme-Yankton-
1010 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...Winds are expected slowly diminish this afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 14. Unsecured objects will be blown around. 

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.

&&

$$

IAZ001>003-012>014-020>022-031-032-MNZ072-080-081-089-090-098-
NEZ013-014-SDZ067-070-071-140000-
/O.CON.KFSD.WI.Y.0012.000000T0000Z-171214T0000Z/
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Rock-Dixon-Dakota-Lincoln SD-Clay SD-Union-
1010 AM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* TIMING...Winds will slowly diminish late this afternoon. 

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
653 
WWUS73 KFSD 132000
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
200 PM CST Wed Dec 13 2017


MNZ071-097-SDZ038>040-050-052>066-068-069-132100-
/O.CAN.KFSD.WI.Y.0012.000000T0000Z-171213T2100Z/
Lincoln MN-Pipestone-Beadle-Kingsbury-Brookings-Gregory-Jerauld-
Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-
Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-
200 PM CST Wed Dec 13 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Wind Advisory. 

Northwest winds may occasionally gust to 35 or 40 mph through 3pm,
but are expected to continue to weaken through sunset. Winds this
evening will fall between 15 and 25 mph, and winds after midnight
will continue to fall to levels between 10 and 20 mph.  


$$

IAZ001>003-012>014-020>022-031-032-MNZ072-080-081-089-090-098-
NEZ013-014-SDZ067-070-071-140000-
/O.CON.KFSD.WI.Y.0012.000000T0000Z-171214T0000Z/
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lyon MN-Murray-Cottonwood-Nobles-Jackson-
Rock-Dixon-Dakota-Lincoln SD-Clay SD-Union-
200 PM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* TIMING...Winds will slowly diminish late this afternoon.

* WINDS...sustained winds 25 to 35 mph with gusts to 50 mph will 
  be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
825 
WWUS73 KFSD 132154
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
354 PM CST Wed Dec 13 2017


IAZ001-012-020-031-MNZ098-NEZ013-014-SDZ067-070-071-132300-
/O.CAN.KFSD.WI.Y.0012.000000T0000Z-171214T0000Z/
Lyon IA-Sioux-Plymouth-Woodbury-Rock-Dixon-Dakota-Lincoln SD-
Clay SD-Union-
354 PM CST Wed Dec 13 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Wind Advisory. 

Winds will continue to slowly diminish this evening, but sustained
winds between 15 and 25 mph may continue through the evening. 

$$

IAZ002-003-013-014-021-022-032-MNZ072-080-081-089-090-140000-
/O.CON.KFSD.WI.Y.0012.000000T0000Z-171214T0000Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Lyon MN-Murray-Cottonwood-Nobles-Jackson-
354 PM CST Wed Dec 13 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* TIMING...Winds will slowly diminish late this afternoon.

* WINDS...sustained winds 25 to 35 mph with isolated gusts to 50 
  mph will be possible. 

* IMPACTS...Lightweight and high-profile vehicles will be 
  impacted, especially on east-west roads such as Interstate 90 
  and Highway 20. Unsecured objects will be blown around. 

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.

&&

$$
195 
WWUS73 KFSD 132341
NPWFSD

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
541 PM CST Wed Dec 13 2017


IAZ002-003-013-014-021-022-032-MNZ072-080-081-089-090-140045-
/O.CAN.KFSD.WI.Y.0012.000000T0000Z-171214T0000Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Lyon MN-Murray-Cottonwood-Nobles-Jackson-
541 PM CST Wed Dec 13 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Wind Advisory. 

Winds will continue to diminish this evening, but sustained winds
between 10 and 20 mph may continue through midnight.

$$

Nearby

Wind Advisories in South Dakota, 2017Wind Advisories in Iowa, 2017Wind Advisories in Minnesota, 2017Every wind advisory in 2017

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.