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 Jun 30, 2016, 4:21 PM CDT for Marshall County, Story County, Iowa. It was in force for 39 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 30, 2016, 4:21 PM CDT (21:21 UTC)
- Expired
- Jun 30, 2016, 5:00 PM CDT
- In force
- 39 min
- Issued by
- NWS Des Moines, IA
Counties Marshall County, IA, Story County, IA
The radar
The Des Moines radar (KDMX), 45 km from the middle of the area, began a volume at 21:24 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, 9.4 hours before the alert went out and 233 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1246 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Jun 30, 3:58 PM CDT, 23 minutes earlier.
Area forecast discussion, Jun 30, 3:58 PM CDT, 23 minutes before
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</html>Hazardous weather outlook, Jun 30, 3:32 PM CDT, 49 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 332 PM CDT THU JUN 30 2016 IAZ004>007-015>017-023>026-033>037-044>048-057>060-070>073- 081>083-092>094-012045- EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-SAC-CALHOUN-WEBSTER-HAMILTON- HARDIN-CRAWFORD-CARROLL-GREENE-BOONE-STORY-AUDUBON-GUTHRIE-DALLAS- POLK-CASS-ADAIR-MADISON-WARREN-ADAMS-UNION-CLARKE-TAYLOR-RINGGOLD- DECATUR- 332 PM CDT THU JUN 30 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE FORECAST THROUGH THIS EVENING. A FEW STORMS COULD BE STRONG NICKEL HAIL AND WIND GUSTS TO 50 MPH THE MAIN THREATS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORM CHANCES WILL RETURN TO LOCATIONS MAINLY SOUTH OF INTERSTATE 80 OVER THE WEEKEND AND THE REST OF THE AREA TUESDAY NIGHT AND WEDNESDAY. THE PROBABILITY OF SEVERE WEATHER APPEARS LOW OVER THE WEEKEND BUT LOCALLY HEAVY RAINFALL MAY BE POSSIBLE TOWARD THE MISSOURI BORDER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. IAZ027-028-038-039-049-050-061-062-074-075-084>086-095>097-012045- BUTLER-BREMER-GRUNDY-BLACK HAWK-MARSHALL-TAMA-JASPER-POWESHIEK- MARION-MAHASKA-LUCAS-MONROE-WAPELLO-WAYNE-APPANOOSE-DAVIS- 332 PM CDT THU JUN 30 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE FORECAST THROUGH THIS EVENING. A FEW STORMS COULD BE SEVERE WITH LARGE HAIL AND DAMAGING WIND THE MAIN THREATS. A BRIEF ISOLATED TORNADO CANNOT BE RULED OUT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORM CHANCES WILL RETURN TO SOUTHERN IOWA OVER THE WEEKEND AND THE REST OF THE AREA TUESDAY NIGHT AND WEDNESDAY. THE PROBABILITY OF SEVERE WEATHER APPEARS LOW OVER THE WEEKEND BUT LOCALLY HEAVY RAINFALL MAY BE POSSIBLE TOWARD THE MISSOURI BORDER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. FAB
In the hours before
Special weather statement, Jun 30, 2:55 PM CDT, 1 hour 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 255 PM CDT THU JUN 30 2016 IAZ026-037-302015- FRANKLIN IA-HARDIN IA- 255 PM CDT THU JUN 30 2016 ...STRONG THUNDERSTORM NEAR IOWA FALLS... AT 254 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES NORTHWEST OF IOWA FALLS...MOVING SOUTHEAST AT 20 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... IOWA FALLS...ALDEN...BRADFORD AND POPEJOY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 4265 9346 4265 9324 4248 9317 4248 9345 TIME...MOT...LOC 1954Z 337DEG 18KT 4259 9336 SKOW
Special weather statement, Jun 30, 3:15 PM CDT, 1 hour 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 315 PM CDT THU JUN 30 2016 IAZ037-302045- HARDIN IA- 315 PM CDT THU JUN 30 2016 ...STRONG THUNDERSTORM NEAR IOWA FALLS... AT 315 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR IOWA FALLS...MOVING SOUTH AT 20 MPH. NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF CENTRAL HARDIN COUNTY...INCLUDING THE FOLLOWING LOCATIONS: IOWA FALLS MUNICIPAL AIRPORT...BUCKEYE...ALDEN AND OWASA. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 4234 9311 4232 9340 4256 9344 4256 9328 TIME...MOT...LOC 2015Z 337DEG 17KT 4251 9333 SKOW
Special weather statement, Jun 30, 3:39 PM CDT, 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
339 PM CDT THU JUN 30 2016
IAZ093-302100-
RINGGOLD IA-
339 PM CDT THU JUN 30 2016
...STRONG THUNDERSTORM OVER SOUTHERN IOWA...
AT 338 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
IRENA...OR 9 MILES SOUTHWEST OF MOUNT AYR...MOVING SOUTHEAST AT 30
MPH.
NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
REDDING...BENTON AND DELPHOS.
LAT...LON 4059 9447 4062 9447 4073 9432 4057 9409
4057 9446
TIME...MOT...LOC 2038Z 319DEG 25KT 4062 9435
SKOWSpecial weather statement, Jun 30, 3:56 PM CDT, 25 minutes before
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</html>Local storm report, Jun 30, 4:17 PM CDT, 4 minutes before
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</html>Special weather statement, Jun 30, 4:21 PM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:22 PM CDT | Special Weather Statement | DMX | Crawford | 23 min |
| Jun 30, 3:34 AM CDT | Special Weather Statement | DMX | Carroll | 41 min |
| Jun 30, 6:27 AM CDT | Special Weather Statement | DMX | Taylor | 63 min |
| Jun 30, 12:30 PM CDT | Special Weather Statement | DMX | Worth | 45 min |
| Jun 30, 1:31 PM CDT | Special Weather Statement | DMX | Crawford | 44 min |
| Jun 30, 1:37 PM CDT | Special Weather Statement | DMX | Bremer, Butler | 38 min |
| Jun 30, 2:09 PM CDT | Special Weather Statement | DMX | Cerro Gordo, Hancock | 66 min |
| Jun 30, 2:19 PM CDT | Special Weather Statement | DMX | Bremer | 41 min |
| Jun 30, 2:55 PM CDT | Special Weather Statement | DMX | Franklin | 20 min |
| Jun 30, 3:15 PM CDT | Special Weather Statement | DMX | Hardin | 30 min |
| Jun 30, 3:24 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 36 min |
| Jun 30, 3:39 PM CDT | Special Weather Statement | DMX | Ringgold | 21 min |
| Jun 30, 3:53 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall | 37 min |
| Jun 30, 3:56 PM CDT | Special Weather Statement | DMX | Story | 34 min |
| Jun 30, 4:52 PM CDT | Special Weather Statement | DMX | Jasper, Polk | 53 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.