Alert archive / Iowa / Special Weather Statements in 2016
Special Weather Statement, NWS Des Moines, IA
NWS Des Moines, IA issued this special weather statement at Aug 29, 2016, 3:09 PM CDT for Hardin County, Iowa. It was in force for 51 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
- Aug 29, 2016, 3:09 PM CDT (20:09 UTC)
- Expired
- Aug 29, 2016, 4:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Des Moines, IA
County Hardin County, IA
The radar
The Des Moines radar (KDMX), 102 km from the middle of the area, began a volume at 20:11 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
Davenport, (KDVN), launched 12:00Z, 8.2 hours before the alert went out and 248 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
- 959 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 891 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
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</html>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 Aug 29, 6:37 AM CDT, 8 hours 32 minutes earlier.
Area forecast discussion, Aug 29, 6:37 AM CDT, 8 hours 32 minutes before
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</html>Hazardous weather outlook, Aug 29, 4:14 AM CDT, 10 hours 55 minutes before
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</html>In the hours before
Special weather statement, Aug 29, 11:53 AM CDT, 3 hours 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
1153 AM CDT MON AUG 29 2016
IAZ005>007-016-017-024-025-291745-
WORTH IA-WRIGHT IA-CERRO GORDO IA-WINNEBAGO IA-HUMBOLDT IA-
KOSSUTH IA-HANCOCK IA-
1153 AM CDT MON AUG 29 2016
...STRONG STORMS WITH HEAVY RAIN OVER NORTHERN IOWA...
AT 1149 AM CDT...DOPPLER RADAR WAS TRACKING SLOW MOVING STRONG
THUNDERSTORMS FROM 13 MILES NORTHEAST OF DAKOTA CITY THROUGH HANCOCK
COUNTY INTO WORTH COUNTY.
HALF INCH HAIL AND TORRENTIAL RAINS WILL BE POSSIBLE WITH THESE
STORMS. RAINFALL RATES MAY REACH ONE TO TWO INCHES PER HOUR
PRODUCING SIGNIFICANT PONDING WATER IN DITCHES AND ON ROADS...RISES
IN SMALL STREAMS AND CREEKS...AND LOW VISIBILITIES WHEN DRIVING.
LOCATIONS IMPACTED INCLUDE...
MASON CITY...ALGONA...FOREST CITY...GARNER...CLARION...NORTHWOOD...
DAKOTA CITY...HUMBOLDT...EAGLE GROVE...BELMOND...LAKE MILLS...
BRITT...NORA SPRINGS...MANLY...ROCKWELL...CLEAR LAKE...SMITH POOL...
EAGLE LAKE...RICE LAKE AND MASON CITY MUNICIPAL AIRPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
REMEMBER...LIGHTNING CAN STRIKE OUT TO 10 MILES FROM THE PARENT
THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW! DO NOT BE CAUGHT ON
THE WATER IN A THUNDERSTORM.
&&
LAT...LON 4291 9303 4291 9350 4278 9350 4265 9397
4265 9443 4349 9444 4350 9302
TIME...MOT...LOC 1649Z 062DEG 5KT 4289 9407
SMALLSpecial weather statement, Aug 29, 1:37 PM CDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 137 PM CDT MON AUG 29 2016 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-300000- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-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- INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY... LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT... KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS... ROLFE...FONDA...GILMORE CITY...HUMBOLDT...EAGLE GROVE...CLARION... BELMOND...HAMPTON...PARKERSBURG...CLARKSVILLE...SHELL ROCK... GREENE...APLINGTON...ALLISON...DUMONT...WAVERLY...SAC CITY... LAKE VIEW...ODEBOLT...WALL LAKE...SCHALLER...EARLY... ROCKWELL CITY...MANSON...LAKE CITY...POMEROY...FORT DODGE... WEBSTER CITY...IOWA FALLS...ELDORA...ACKLEY...GRUNDY CENTER... REINBECK...CONRAD...DIKE...WELLSBURG...WATERLOO...CEDAR FALLS... DENISON...CARROLL...JEFFERSON...BOONE...AMES...MARSHALLTOWN... TAMA...TOLEDO...TRAER...DYSART...GLADBROOK...AUDUBON...EXIRA... GUTHRIE CENTER...PANORA...BAYARD...CASEY...PERRY...WAUKEE... ADEL...DES MOINES...NEWTON...GRINNELL...ATLANTIC...GREENFIELD... STUART...ADAIR...FONTANELLE...WINTERSET...EARLHAM...INDIANOLA... NORWALK...CARLISLE...PELLA...KNOXVILLE...OSKALOOSA...CORNING... CRESTON...OSCEOLA...CHARITON...ALBIA...OTTUMWA...BEDFORD... LENOX...NEW MARKET...MOUNT AYR...LAMONI...LEON...CORYDON... SEYMOUR...ALLERTON...HUMESTON...CENTERVILLE...BLOOMFIELD 137 PM CDT MON AUG 29 2016 ...CONDITIONS ARE FAVORABLE FOR FUNNEL CLOUDS... CURRENT ATMOSPHERIC CONDITIONS SUPPORT THE DEVELOPMENT OF FUNNEL CLOUDS ACROSS MUCH OF IOWA THIS AFTERNOON. USUALLY...THESE FUNNEL CLOUDS CAN FORM FROM SHOWERS AND WEAK THUNDERSTORMS. THESE FUNNELS ARE NORMALLY BRIEF...DROP ONLY A FEW HUNDRED FEET FROM THE CLOUD BASE...AND RARELY BECOME A TORNADO OR CAUSE DAMAGE. HOWEVER...IF ONE IS SPOTTED...PLEASE IMMEDIATELY REPORT IT TO THE NATIONAL WEATHER SERVICE. IF A TORNADO WARNING WOULD BECOME NECESSARY...TAKE APPROPRIATE ACTION. SMALL
Special weather statement, Aug 29, 3:09 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 309 PM CDT MON AUG 29 2016 IAZ026-027-037-038-292100- FRANKLIN IA-BUTLER IA-HARDIN IA-GRUNDY IA- 309 PM CDT MON AUG 29 2016 ...GUSTY WINDS AROUND 50 MPH POSSIBLE... AT 309 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ACKLEY...OR NEAR IOWA FALLS...MOVING SOUTHEAST AT 20 MPH. WIND GUSTS TO AROUND 50 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... IOWA FALLS...ELDORA...ACKLEY...STEAMBOAT ROCK...GENEVA...BRADFORD... OWASA...ACKLEY MUNICIPAL AIRPORT...PINE LAKE STATE PARK AND IOWA FALLS MUNICIPAL AIRPORT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4257 9342 4273 9330 4262 9289 4235 9308 TIME...MOT...LOC 2009Z 301DEG 23KT 4257 9315 BEERENDS
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 11:53 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Hancock, Humboldt, Kossuth, Winnebago, Worth and 1 more | 52 min |
| Aug 29, 12:44 PM CDT | Flash Flood Warning | DMX | Humboldt, Kossuth, Wright | 6 hr |
| Aug 29, 3:44 PM CDT | Special Weather Statement | DMX | Grundy | 61 min |
| Aug 29, 3:59 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 46 min |
| Aug 29, 4:05 PM CDT | Special Weather Statement | DMX | Polk | 40 min |
| Aug 29, 4:56 PM CDT | Special Weather Statement | DMX | Tama | 34 min |
| Aug 29, 4:59 PM CDT | Special Weather Statement | DMX | Tama | 31 min |
| Aug 29, 5:08 PM CDT | Special Weather Statement | DMX | Boone, Dallas, Guthrie, Story | 52 min |
| Aug 29, 5:25 PM CDT | Flash Flood Warning | DMX | Boone, Story | 6 hr |
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.