Alert archive / Arkansas / Wind Advisories in 2012

Wind Advisory 2, NWS Little Rock, AR

December 19, 201234 counties in Arkansas

NWS Little Rock, AR issued this wind advisory at Dec 19, 2012, 3:20 PM CST for 34 counties in Arkansas. It took effect at Dec 20, 2012, 12:00 AM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Dec 19, 2012, 3:20 PM CST (21:20 UTC)
In effect from
Dec 20, 2012, 12:00 AM CST
Expired
Dec 20, 2012, 6:00 PM CST
In force
18 hr
Issued by
NWS Little Rock, AR
All 34 counties

Arkansas County, AR, Baxter County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lincoln County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Sharp County, AR, Stone County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 10 km from the middle of the area, began a volume at 21:25 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

Little Rock, AR (KLZK), launched 12:00Z, 9.3 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, Little Rock, AR at 12:00Z on 2012-12-19Temperature 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, Little Rock, AR at 12:00Z on 2012-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897Sfc1 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
1040 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

577 
WWUS74 KLZK 192120
NPWLZK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LITTLE ROCK AR
320 PM CST WED DEC 19 2012

.A STORM SYSTEM WILL TRACK FROM THE TEXAS PANHANDLE TO CENTRAL
MISSOURI THROUGH TONIGHT. A COLD FRONT WILL SWEEP THROUGH
ARKANSAS...WITH WINDS SHIFTING FROM SOUTHERLY TO THE WEST AND
NORTHWEST. WINDS WILL BECOME GUSTY AFTER MIDNIGHT TONIGHT... WITH
GUSTY CONDITIONS CONTINUING ON THURSDAY. GUSTS ON THURSDAY COULD
EXCEED 40 MPH MAINLY ACROSS THE NORTH.

ARZ003>007-012>016-021>025-030>034-038-039-043>047-057-200530-
/O.CAN.KLZK.LW.Y.0029.121220T0600Z-121221T0000Z/
/O.NEW.KLZK.WI.Y.0002.121220T0600Z-121221T0000Z/
ARKANSAS-BAXTER-BOONE-CLEBURNE-CONWAY-FAULKNER-FULTON-
INDEPENDENCE-IZARD-JACKSON-JOHNSON-LOGAN-LONOKE-MARION-MONROE-
NEWTON-PERRY-POPE-PRAIRIE-PULASKI-SALINE-SEARCY-SHARP-STONE-
VAN BUREN-WHITE-WOODRUFF-YELL-
INCLUDING THE CITIES OF...ASH FLAT...AUGUSTA...BATESVILLE...
BEEBE...BENTON...BOONEVILLE...BRINKLEY...BRYANT...BULL SHOALS...
CABOT...CALICO ROCK...CAVE CITY...CLARENDON...CLARKSVILLE...
CLINTON...CONWAY...COTTON PLANT...DANVILLE...DARDANELLE...
DE VALLS BLUFF...DE WITT...DES ARC...FAIRFIELD BAY...FLIPPIN...
HARDY...HARRISON...HAZEN...HEBER SPRINGS...HORSESHOE BEND...
JASPER...LESLIE...LITTLE ROCK...LONOKE...MAMMOTH SPRING...
MARSHALL...MCCRORY...MELBOURNE...MORRILTON...MOUNTAIN HOME...
MOUNTAIN VIEW...NEWPORT...NORTH LITTLE ROCK...OLA...OXFORD...
PARIS...PERRYVILLE...RUSSELLVILLE...SEARCY...STUTTGART...SUMMIT...
VIOLA...WESTERN GROVE...YELLVILLE
320 PM CST WED DEC 19 2012

...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST
THURSDAY...
...LAKE WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST
THURSDAY. THE LAKE WIND ADVISORY HAS BEEN REPLACED WITH THE WIND
ADVISORY.


* EVENT...GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED...WITH 
  SPEEDS FROM 15 TO 25 MPH TONIGHT AND 25 TO 35 MPH ON THURSDAY. 
  GUSTS COULD EXCEED 40 MPH ON THURSDAY. 

* TIMING...SOUTHERLY WINDS WILL TURN TO THE NORTHWEST AND INCREASE
  DRAMATICALLY BEHIND A COLD FRONT AFTER MIDNIGHT TONIGHT AND
  CONTINUE THROUGH THE DAY THURSDAY. WINDS WILL NOT RELAX UNTIL
  UNTIL A STORM SYSTEM IN THE MID-MISSISSIPPI VALLEY EXITS TOWARD
  THE GREAT LAKES. THAT WILL NOT HAPPEN UNTIL THURSDAY EVENING.

* IMPACT...GUSTY WINDS WILL CREATE HAZARDOUS BOATING 
  CONDITIONS... AND WILL ALSO MAKE DRIVING DIFFICULT FOR PEOPLE 
  IN HIGH PROFILE VEHICLES. HIGHER GUSTS MAY CAUSE SOME POWER 
  OUTAGES. 



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

ARZ037-040>042-052>056-062>069-200530-
/O.CON.KLZK.LW.Y.0029.121220T0600Z-121221T0000Z/
BRADLEY-CALHOUN-CLARK-CLEVELAND-DALLAS-DESHA-DREW-GARLAND-GRANT-
HOT SPRING-JEFFERSON-LINCOLN-MONTGOMERY-OUACHITA-PIKE-POLK-SCOTT-
INCLUDING THE CITIES OF...ARKADELPHIA...CAMDEN...DUMAS...
FORDYCE...GLENWOOD...GOULD...HAMPTON...HOT SPRINGS...MALVERN...
MCGEHEE...MENA...MONTICELLO...MOUNT IDA...MURFREESBORO...NORMAN...
PINE BLUFF...SHERIDAN...STAR CITY...THORNTON...WALDRON...WARREN
320 PM CST WED DEC 19 2012

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY...

A LAKE WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM CST THURSDAY. 

* EVENT...GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED...WITH SPEEDS
  FROM 15 TO 30 MPH TONIGHT...WITH HIGHER GUST POSSIBLE.

* TIMING...SOUTHERLY WINDS WILL TURN TO THE NORTHWEST AND INCREASE
  DRAMATICALLY BEHIND A COLD FRONT AFTER MIDNIGHT TONIGHT AND
  CONTINUE THROUGH THE DAY THURSDAY. WINDS WILL NOT RELAX UNTIL
  UNTIL A STORM SYSTEM IN THE MID-MISSISSIPPI VALLEY EXITS TOWARD
  THE GREAT LAKES. THAT WILL NOT HAPPEN UNTIL THURSDAY EVENING.

* IMPACT...GUSTY WINDS WILL CREATE HAZARDOUS BOATING 
  CONDITIONS... AND WILL ALSO MAKE DRIVING DIFFICULT FOR PEOPLE 
  IN HIGH PROFILE VEHICLES. HIGHER GUSTS MAY CAUSE SOME POWER 
  OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A LAKE WIND ADVISORY INDICATES THAT WINDS WILL CAUSE ROUGH CHOP
ON AREA LAKES. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING.

&&

$$


224
3 follow-up statements
248 
WWUS74 KLZK 201015
NPWLZK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LITTLE ROCK AR
415 AM CST THU DEC 20 2012

ARZ037-040>042-052>056-062>069-201815-
/O.CAN.KLZK.LW.Y.0029.000000T0000Z-121221T0000Z/
/O.EXA.KLZK.WI.Y.0002.000000T0000Z-121221T0000Z/
BRADLEY-CALHOUN-CLARK-CLEVELAND-DALLAS-DESHA-DREW-GARLAND-GRANT-
HOT SPRING-JEFFERSON-LINCOLN-MONTGOMERY-OUACHITA-PIKE-POLK-SCOTT-
INCLUDING THE CITIES OF...ARKADELPHIA...CAMDEN...DUMAS...
FORDYCE...GLENWOOD...GOULD...HAMPTON...HOT SPRINGS...MALVERN...
MCGEHEE...MENA...MONTICELLO...MOUNT IDA...MURFREESBORO...NORMAN...
PINE BLUFF...SHERIDAN...STAR CITY...THORNTON...WALDRON...WARREN
415 AM CST THU DEC 20 2012

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING...
...LAKE WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST THIS EVENING. THE
LAKE WIND ADVISORY HAS BEEN CANCELLED. 

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

* EVENT...GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED...WITH SPEEDS
  FROM 25 TO 35 MPH TODAY...AND GUSTS EXCEEDING 45 MPH.

* TIMING...WEST WINDS WILL GRADUALLY SHIFT TO THE NORTHWEST BEHIND
  A COLD FRONT THAT IS MOVING THROUGH THE STATE. THE WINDS WILL
  NOT RELAX UNTIL THE SURFACE LOW PRESSURE SYSTEM MOVES NORTHEAST
  INTO THE GREAT LAKES REGION LATE THIS AFTERNOON INTO THIS EVENING.

* IMPACT...GUSTY WINDS WILL CREATE HAZARDOUS DRIVING
  CONDITIONS...ESPECIALLY IN HIGH PROFILE VEHICLES. HIGHER GUSTS
  MAY CAUSE SOME POWER OUTAGES. DAMAGE TO DROUGHT WEAKENED TREES
  WILL BE MORE LIKELY...DUE TO THE WEAKENED ROOT SYSTEMS.
  ALSO...OUTDOOR ITEMS...SUCH AS LARGE HOLIDAY DECORATIONS...WILL BE
  VULNERABLE TO DAMAGE FROM TIPPING AND BEING BLOWN AROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 25 TO 39 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

ARZ003>007-012>016-021>025-030>034-038-039-043>047-057-201815-
/O.CON.KLZK.WI.Y.0002.000000T0000Z-121221T0000Z/
ARKANSAS-BAXTER-BOONE-CLEBURNE-CONWAY-FAULKNER-FULTON-
INDEPENDENCE-IZARD-JACKSON-JOHNSON-LOGAN-LONOKE-MARION-MONROE-
NEWTON-PERRY-POPE-PRAIRIE-PULASKI-SALINE-SEARCY-SHARP-STONE-
VAN BUREN-WHITE-WOODRUFF-YELL-
INCLUDING THE CITIES OF...ASH FLAT...AUGUSTA...BATESVILLE...
BEEBE...BENTON...BOONEVILLE...BRINKLEY...BRYANT...BULL SHOALS...
CABOT...CALICO ROCK...CAVE CITY...CLARENDON...CLARKSVILLE...
CLINTON...CONWAY...COTTON PLANT...DANVILLE...DARDANELLE...
DE VALLS BLUFF...DE WITT...DES ARC...FAIRFIELD BAY...FLIPPIN...
HARDY...HARRISON...HAZEN...HEBER SPRINGS...HORSESHOE BEND...
JASPER...LESLIE...LITTLE ROCK...LONOKE...MAMMOTH SPRING...
MARSHALL...MCCRORY...MELBOURNE...MORRILTON...MOUNTAIN HOME...
MOUNTAIN VIEW...NEWPORT...NORTH LITTLE ROCK...OLA...OXFORD...
PARIS...PERRYVILLE...RUSSELLVILLE...SEARCY...STUTTGART...SUMMIT...
VIOLA...WESTERN GROVE...YELLVILLE
415 AM CST THU DEC 20 2012

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

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

* EVENT...GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED...WITH SPEEDS
  FROM 25 TO 35 MPH TODAY...AND GUSTS EXCEEDING 45 MPH.

* TIMING...WEST WINDS WILL GRADUALLY SHIFT TO THE NORTHWEST BEHIND
  A COLD FRONT THAT IS MOVING THROUGH THE STATE. THE WINDS WILL
  NOT RELAX UNTIL THE SURFACE LOW PRESSURE SYSTEM MOVES NORTHEAST
  INTO THE GREAT LAKES REGION LATE THIS AFTERNOON INTO THIS EVENING.

* IMPACT...GUSTY WINDS WILL CREATE HAZARDOUS DRIVING
  CONDITIONS...ESPECIALLY IN HIGH PROFILE VEHICLES. HIGHER GUSTS
  MAY CAUSE SOME POWER OUTAGES. DAMAGE TO DROUGHT WEAKENED TREES
  WILL BE MORE LIKELY...DUE TO THE WEAKENED ROOT SYSTEMS.
  ALSO...OUTDOOR ITEMS...SUCH AS LARGE HOLIDAY DECORATIONS...WILL BE
  VULNERABLE TO DAMAGE FROM TIPPING AND BEING BLOWN AROUND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 25 TO 39 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

58
481 
WWUS74 KLZK 201653
NPWLZK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1053 AM CST THU DEC 20 2012

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-210000-
/O.CON.KLZK.WI.Y.0002.000000T0000Z-121221T0000Z/
ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-
CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-
INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-
MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-
PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-
WOODRUFF-YELL-
INCLUDING THE CITIES OF...ARKADELPHIA...ASH FLAT...AUGUSTA...
BATESVILLE...BEEBE...BENTON...BOONEVILLE...BRINKLEY...BRYANT...
BULL SHOALS...CABOT...CALICO ROCK...CAMDEN...CAVE CITY...
CLARENDON...CLARKSVILLE...CLINTON...CONWAY...COTTON PLANT...
DANVILLE...DARDANELLE...DE VALLS BLUFF...DE WITT...DES ARC...
DUMAS...FAIRFIELD BAY...FLIPPIN...FORDYCE...GLENWOOD...GOULD...
HAMPTON...HARDY...HARRISON...HAZEN...HEBER SPRINGS...
HORSESHOE BEND...HOT SPRINGS...JASPER...LESLIE...LITTLE ROCK...
LONOKE...MALVERN...MAMMOTH SPRING...MARSHALL...MCCRORY...
MCGEHEE...MELBOURNE...MENA...MONTICELLO...MORRILTON...MOUNT IDA...
MOUNTAIN HOME...MOUNTAIN VIEW...MURFREESBORO...NEWPORT...NORMAN...
NORTH LITTLE ROCK...OLA...OXFORD...PARIS...PERRYVILLE...
PINE BLUFF...RUSSELLVILLE...SEARCY...SHERIDAN...STAR CITY...
STUTTGART...SUMMIT...THORNTON...VIOLA...WALDRON...WARREN...
WESTERN GROVE...YELLVILLE
1053 AM CST THU DEC 20 2012

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

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

* EVENT...GUSTY WEST TO NORTHWEST WINDS. WIND SPEEDS WILL RANGE
  FROM 25 TO 35 MPH...WITH GUSTS UP TO 50 MPH.

* TIMING...SUSTAINED WINDS OF 25 TO 35 MPH...WITH GUSTS UP TO 50
  MPH...WILL OCCUR THROUGH THE DAY AND INTO THE AFTERNOON. WINDS
  SHOULD FALL BELOW WIND ADVISORY LEVELS AROUND 6 PM...BUT EXPECT
  WIND GUSTS OF 20-25 MPH TO CONTINUE UNTIL AROUND MIDNIGHT BEFORE
  WEAKENING SIGNIFICANTLY OVERNIGHT.

* IMPACT...GUSTY WINDS WILL CREATE HAZARDOUS DRIVING
  CONDITIONS...ESPECIALLY IN HIGH PROFILE VEHICLES. SCATTERED TO
  WIDESPREAD POWER OUTAGES WILL OCCUR DUE MAINLY TO DOWNED TREES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 25 TO 39 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
443 
WWUS74 KLZK 202359
NPWLZK

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LITTLE ROCK AR
559 PM CST THU DEC 20 2012

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-210100-
/O.EXP.KLZK.WI.Y.0002.000000T0000Z-121221T0000Z/
ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-
CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-
INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-
MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-
PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-
WOODRUFF-YELL-
INCLUDING THE CITIES OF...ARKADELPHIA...ASH FLAT...AUGUSTA...
BATESVILLE...BEEBE...BENTON...BOONEVILLE...BRINKLEY...BRYANT...
BULL SHOALS...CABOT...CALICO ROCK...CAMDEN...CAVE CITY...
CLARENDON...CLARKSVILLE...CLINTON...CONWAY...COTTON PLANT...
DANVILLE...DARDANELLE...DE VALLS BLUFF...DE WITT...DES ARC...
DUMAS...FAIRFIELD BAY...FLIPPIN...FORDYCE...GLENWOOD...GOULD...
HAMPTON...HARDY...HARRISON...HAZEN...HEBER SPRINGS...
HORSESHOE BEND...HOT SPRINGS...JASPER...LESLIE...LITTLE ROCK...
LONOKE...MALVERN...MAMMOTH SPRING...MARSHALL...MCCRORY...
MCGEHEE...MELBOURNE...MENA...MONTICELLO...MORRILTON...MOUNT IDA...
MOUNTAIN HOME...MOUNTAIN VIEW...MURFREESBORO...NEWPORT...NORMAN...
NORTH LITTLE ROCK...OLA...OXFORD...PARIS...PERRYVILLE...
PINE BLUFF...RUSSELLVILLE...SEARCY...SHERIDAN...STAR CITY...
STUTTGART...SUMMIT...THORNTON...VIOLA...WALDRON...WARREN...
WESTERN GROVE...YELLVILLE
559 PM CST THU DEC 20 2012

...WIND ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING...

DEEP LOW PRESSURE CONTINUES TO MOVE AWAY FROM THE REGION AND WINDS
HAVE DECREASED TO BELOW ADVISORY LEVELS AT THIS TIME. THEREFORE...THE
WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE ALTHOUGH IT WILL REMAIN 
BREEZY FOR THE NEXT SEVERAL HOURS.

$$

56

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 19, 5:15 AM CSTLake Wind AdvisoryLZKArkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more23 hr

Nearby

Wind Advisories in Arkansas, 2012Every wind advisory in 2012

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.