Alert archive / Iowa / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 49, NWS Des Moines, IA

June 17, 2016Emmet County, Palo Alto County, Pocahontas County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 17, 2016, 8:29 PM CDT for Emmet County, Palo Alto County, Pocahontas County, Iowa. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 17, 2016, 8:29 PM CDT (01:29 UTC)
Expired
Jun 17, 2016, 9:15 PM CDT
In force
46 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Emmet County, IA, Palo Alto County, IA, Pocahontas County, IA

The radar

The Sioux Falls radar (KFSD), 172 km from the middle of the area, began a volume at 01:30 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.

What was reported inside it

TimeReportWhereRemark
Jun 17, 8:40 PM CDTTSTM WND DMGWallingford, IAEMMET COUNTY LAW ENFORCEMENT REPORTED A LARGE PINE TREE DOWN IN WALLINGFORD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 193 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, Minneapolis, MN at 00:00Z on 2016-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 380 joules per kilogram.LCLLFCEL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 2016-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 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
380 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1117 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

846 
WUUS53 KDMX 180129
SVRDMX
IAC063-147-151-180215-
/O.NEW.KDMX.SV.W.0049.160618T0129Z-160618T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
829 PM CDT FRI JUN 17 2016

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN PALO ALTO COUNTY IN NORTHWESTERN IOWA...
  EMMET COUNTY IN NORTHWESTERN IOWA...
  NORTHWESTERN POCAHONTAS COUNTY IN NORTHWESTERN IOWA...

* UNTIL 915 PM CDT

* AT 828 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 3 MILES NORTHEAST OF SUPERIOR TO NEAR WEBB...MOVING
  SOUTHEAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  ESTHERVILLE...EMMETSBURG...LAURENS...FIVE ISLAND LAKE...
  INGHAM LAKE...IOWA LAKE...SILVER LAKE...HIGH LAKE...RUSH LAKE...
  OKAMANPEDAN LAKE...LOST ISLAND LAKE...SWAN LAKE...GRAETTINGER...
  RUTHVEN...WALLINGFORD...AYRSHIRE...GRUVER...DOLLIVER...
  CURLEW AND KEARNEY STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
DES MOINES .

&&

LAT...LON 4350 9445 4345 9444 4340 9458 4279 9474
      4286 9492 4350 9492
TIME...MOT...LOC 0128Z 302DEG 23KT 4346 9489 4293 9505 

HAIL...<.75IN
WIND...60MPH
 
$$

KOTENBERG
2 follow-up statements
030 
WWUS53 KDMX 180206
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
906 PM CDT FRI JUN 17 2016

IAC063-147-151-180215-
/O.CON.KDMX.SV.W.0049.000000T0000Z-160618T0215Z/
PALO ALTO IA-EMMET IA-POCAHONTAS IA-
906 PM CDT FRI JUN 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WESTERN PALO ALTO...EMMET AND NORTHWESTERN POCAHONTAS COUNTIES...

AT 906 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 5 MILES SOUTHWEST OF OKAMANPEDAN LAKE TO NEAR RUSH
LAKE...MOVING EAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
ESTHERVILLE...EMMETSBURG...INGHAM LAKE...RUSH LAKE...IOWA LAKE...
OKAMANPEDAN LAKE...SILVER LAKE...LOST ISLAND LAKE...SWAN LAKE...
HIGH LAKE...GRAETTINGER...RUTHVEN...WALLINGFORD...AYRSHIRE...
GRUVER...DOLLIVER...CURLEW...FORT DEFIANCE STATE PARK...
WOLDEN COUNTY PARK AND ESTHERVILLE MUNICIPAL AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
DES MOINES .

&&

LAT...LON 4350 9445 4345 9444 4340 9458 4339 9458
      4338 9461 4286 9478 4288 9492 4350 9492
TIME...MOT...LOC 0206Z 282DEG 16KT 4346 9470 4293 9486 

HAIL...<.75IN
WIND...60MPH
 
$$

KOTENBERG
169 
WWUS53 KDMX 180213
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
913 PM CDT FRI JUN 17 2016

IAC063-147-151-180223-
/O.EXP.KDMX.SV.W.0049.000000T0000Z-160618T0215Z/
PALO ALTO IA-EMMET IA-POCAHONTAS IA-
913 PM CDT FRI JUN 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN PALO ALTO...EMMET AND
NORTHWESTERN POCAHONTAS COUNTIES WILL EXPIRE AT 915 PM CDT...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
DES MOINES .

LAT...LON 4350 9445 4345 9444 4340 9458 4339 9458
      4338 9461 4286 9478 4288 9492 4350 9492
TIME...MOT...LOC 0210Z 302DEG 23KT 4346 9470 4293 9486 

$$

KOTENBERG

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 7:28 PM CDTSpecial Weather StatementDMXEmmet47 min
Jun 17, 7:45 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth, Palo Alto45 min
Jun 17, 9:17 PM CDTSpecial Weather StatementDMXEmmet, Palo Alto43 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2016Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.