Alert archive / Iowa / Special Weather Statements in 2016

Special Weather Statement, NWS Des Moines, IA

June 14, 2016Worth County, Iowa

NWS Des Moines, IA issued this special weather statement at Jun 14, 2016, 1:01 PM CDT for Worth County, Iowa. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 14, 2016, 1:01 PM CDT (18:01 UTC)
Expired
Jun 14, 2016, 2:00 PM CDT
In force
59 min
Issued by
NWS Des Moines, IA

County Worth County, IA

The radar

The Des Moines radar (KDMX), 174 km from the middle of the area, began a volume at 18:01 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, 6.0 hours before the alert went out and 180 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 12:00Z on 2016-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2016-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 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
7 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this special weather statement went out at Jun 14, 10:44 AM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Jun 14, 10:44 AM CDT, 2 hours 17 minutes before
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Hazardous weather outlook, Jun 14, 11:02 AM CDT, 1 hour 59 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
1102 AM CDT TUE JUN 14 2016

IAZ004>007-015>017-025>028-151615-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
WRIGHT-FRANKLIN-BUTLER-BREMER-
1102 AM CDT TUE JUN 14 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT FOR THE AREA THIS AFTERNOON AND
EVENING FOR THE POTENTIAL OF HEAVY RAINFALL AND FLASH FLOODING.
PLEASE REFER TO THE NATIONAL WEATHER SERVICE WEBSITE AT
WEATHER.GOV/DESMOINES FOR FURTHER DETAILS.

THUNDERSTORMS WILL BECOME INCREASINGLY LIKELY THROUGH THE DAY AND
THEN INTO THE EVENING HOURS WITH CHANCES DIMINISHING OVERNIGHT.
SOME OF THE STORMS MAY BE SEVERE DURING THE LATE AFTERNOON AND
EVENING HOURS WITH LARGE HAIL...DAMAGING WIND...LOCALLY HEAVY
RAIN AND A FEW TORNADOES ALL POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORM CHANCES RETURN TO THE FORECAST NORTH LATE IN THE
WEEKEND...AND AREA WIDE INTO EARLY NEXT WEEK. THE SEVERE WEATHER
POTENTIAL WILL BE BETTER DETERMINED IN THE COMING DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY AND TONIGHT.

IAZ023-024-033>039-044>050-057>062-070>075-081>086-092>097-151615-
POCAHONTAS-HUMBOLDT-SAC-CALHOUN-WEBSTER-HAMILTON-HARDIN-GRUNDY-
BLACK HAWK-CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-
AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-
WARREN-MARION-MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-
TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS-
1102 AM CDT TUE JUN 14 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS WILL BECOME INCREASINGLY LIKELY THROUGH THE DAY AND
THEN INTO THE EVENING HOURS WITH CHANCES DIMINISHING OVERNIGHT.
SOME OF THE STORMS MAY BE SEVERE DURING THE LATE AFTERNOON AND
EVENING HOURS WITH LARGE HAIL...DAMAGING WIND...LOCALLY HEAVY
RAIN AND A FEW TORNADOES ALL POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THUNDERSTORM CHANCES RETURN TO THE FORECAST NORTH LATE IN THE
WEEKEND...AND AREA WIDE INTO EARLY NEXT WEEK. THE SEVERE WEATHER
POTENTIAL WILL BE BETTER DETERMINED IN THE COMING DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY AND TONIGHT.

REV

In the hours before

Special weather statement, Jun 14, 12:42 PM CDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1242 PM CDT TUE JUN 14 2016

IAZ033-044-045-057-141845-
AUDUBON IA-CARROLL IA-CRAWFORD IA-SAC IA-
1242 PM CDT TUE JUN 14 2016

...STRONG THUNDERSTORMS DEVELOPING OVER WEST-CENTRAL IOWA...

AT 1239 PM CDT...DOPPLER RADAR WAS TRACKING A CLUSTER OF STRONG
THUNDERSTORMS WEST OF CARROLL...MOVING NORTH AT 20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SAC CITY...MANNING...LAKE VIEW...BLACK HAWK LAKE...WALL LAKE...
MANILLA...EARLY...ARCADIA...BREDA...VAIL...WESTSIDE...HALBUR...
ASPINWALL...MANNING MUNICIPAL AIRPORT...
WALL LAKE MUNICIPAL AIRPORT...
BLACKHAWK LAKE STATE PARK AND SAC CITY MUNICIPAL AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4248 9516 4245 9487 4176 9503 4176 9509
      4186 9510 4186 9528
TIME...MOT...LOC 1739Z 195DEG 18KT 4210 9510

MF
Special weather statement, Jun 14, 1:01 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
101 PM CDT TUE JUN 14 2016

IAZ006-007-017-141900-
WORTH IA-CERRO GORDO IA-WINNEBAGO IA-
101 PM CDT TUE JUN 14 2016

...THUNDERSTORMS WITH GUSTY WINDS OVER FAR NORTHERN IOWA...

AT 100 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR LAKE MILLS TO 4 MILES
SOUTHWEST OF ROCKFORD...AND MOVING NORTHEAST AT 30 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
MASON CITY...NORTHWOOD...LAKE MILLS...NORA SPRINGS...MANLY...
EMMONS...RICE LAKE...PLYMOUTH...FERTILE...KENSETT...GRAFTON...
HANLONTOWN...JOICE...ROCK FALLS...DOUGHERTY...PORTLAND...BOLAN...
LAKE MILLS MUNICIPAL AIRPORT...
RICE LAKE STATE PARK AND HOGSBACK WILDLIFE AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTH CENTRAL IOWA.

LAT...LON 4292 9303 4343 9361 4350 9357 4350 9302
TIME...MOT...LOC 1800Z 209DEG 26KT 4343 9351 4301 9302

MF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 10:51 AM CDTFlash Flood WatchDMXBremer, Butler, Cerro Gordo, Emmet, Franklin, Hancock and 5 more10 hr
Jun 14, 12:42 PM CDTSpecial Weather StatementDMXSac63 min
Jun 14, 3:10 PM CDTSpecial Weather StatementDMXEmmet, Palo Alto35 min
Jun 14, 3:15 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth30 min
Jun 14, 3:20 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth, Palo Alto40 min
Jun 14, 3:50 PM CDTSpecial Weather StatementDMXSac55 min
Jun 14, 5:47 PM CDTFlash Flood WarningDMXCerro Gordo6 hr
Jun 14, 6:05 PM CDTSevere Thunderstorm WarningDMXBoone, Greene, Webster40 min
Jun 14, 6:17 PM CDTSevere Thunderstorm WarningDMXBoone, Greene43 min

Nearby

Special Weather Statements in Iowa, 2016Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.