Alert archive / Iowa / Special Weather Statements in 2012
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Jun 11, 2012, 3:14 AM CDT for 5 counties in Iowa. It was in force for 61 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 11, 2012, 3:14 AM CDT (08:14 UTC)
- Expired
- Jun 11, 2012, 4:15 AM CDT
- In force
- 61 min
- Issued by
- NWS Quad Cities, IA
Counties Henry County, IA, Jefferson County, IA, Lee County, IA, Louisa County, IA, Van Buren County, IA
The radar
The Quad Cities radar (KDVN), 104 km from the middle of the area, began a volume at 08:14 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 00:00Z, 8.2 hours before the alert went out and 110 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
- 28 J/kg
- Mixed-layer CIN
- -467 J/kg
- Mixed-layer LCL
- 1987 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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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 Quad Cities, IA wrote its last area forecast discussion before this special weather statement went out at Jun 10, 11:47 PM CDT, 3 hours 27 minutes earlier.
Area forecast discussion, Jun 10, 11:47 PM CDT, 3 hours 27 minutes before
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</html>Hazardous weather outlook, Jun 10, 4:44 AM CDT, 22 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 444 AM CDT SUN JUN 10 2012 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-111000- BENTON IA-BUCHANAN IA-BUREAU IL-CARROLL IL-CEDAR IA-CLARK MO- CLINTON IA-DELAWARE IA-DES MOINES IA-DUBUQUE IA-HANCOCK IL- HENDERSON IL-HENRY IA-HENRY IL-IOWA IA-JACKSON IA-JEFFERSON IA- JO DAVIESS IL-JOHNSON IA-JONES IA-KEOKUK IA-LEE IA-LINN IA-LOUISA IA- MCDONOUGH IL-MERCER IL-MUSCATINE IA-PUTNAM IL-ROCK ISLAND IL- SCOTLAND MO-SCOTT IA-STEPHENSON IL-VAN BUREN IA-WARREN IL- WASHINGTON IA-WHITESIDE IL- 444 AM CDT SUN JUN 10 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT A COLD FRONT PUSHING INTO THE AREA WILL PRODUCE THUNDERSTORMS IN THE OUTLOOK AREA LATER TONIGHT AND INTO EARLY MONDAY MORNING. LATEST INDICATIONS SUGGEST THAT MOST OF THE STORMS WILL BE WEAKENING AFTER MIDNIGHT AS THEY COME ACROSS THE AREA FROM WEST TO EAST. BUT A FEW STRONG TO SEVERE STORMS MAY STILL OCCUR LATE SUNDAY EVENING GENERALLY IN AREAS WEST OF A LINE FROM MANCHESTER IOWA...TO CEDAR RAPIDS...AND TO FAIRFIELD IN SOUTHEAST IOWA. LARGE HAIL AND DAMAGING WINDS WOULD BE THE MAIN THREATS WITH ANY SEVERE STORM THAT MOVES INTO OR DEVELOPS IN THE OUTLOOK AREA TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A SLIGHT CHANCE FOR THUNDERSTORMS SATURDAY. IT IS TOO EARLY TO DETERMINE THE TIMING OR INTENSITY OF THESE STORMS. .SPOTTER INFORMATION STATEMENT... THERE IS A LOW CHANCE THAT SPOTTER ACTIVATION WILL BE NEEDED TONIGHT WEST OF THE MISSISSIPPI RIVER. 12/DMD
In the hours before
Special weather statement, Jun 11, 1:44 AM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
144 AM CDT MON JUN 11 2012
IAZ040-041-051-052-110745-
BENTON-BUCHANAN-DELAWARE-LINN-
144 AM CDT MON JUN 11 2012
...STRONG THUNDERSTORMS MOVING ACROSS NORTHEASTERN IOWA...
AT 139 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FAIRBANK TO
BRANDON...MOVING EAST AT 40 MPH.
* THUNDERSTORMS WILL BE NEAR...
ROWLEY...INDEPENDENCE AND HAZLETON AROUND 150 AM CDT...
WALKER AROUND 155 AM CDT...
STANLEY AND QUASQUETON AROUND 200 AM CDT...
WINTHROP AND AURORA AROUND 205 AM CDT...
LAMONT AND MASONVILLE AROUND 215 AM CDT...
WIND GUSTS OF 40 TO 50 MPH MAY OCCUR WITH THESE STORMS. THESE WIND
GUSTS COULD BLOW AROUND OUTDOOR FURNITURE AND OTHER LIGHT OBJECTS.
SMALL BRANCHES MAY ALSO FALL.
SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED.
LAT...LON 4265 9141 4264 9140 4232 9139 4227 9206
4231 9207 4246 9207 4247 9209 4264 9209
4265 9208
TIME...MOT...LOC 0640Z 267DEG 28KT 4263 9200 4230 9195
12Special weather statement, Jun 11, 3:14 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 314 AM CDT MON JUN 11 2012 IAZ076>078-087>089-098-099-MOZ009-010-110915- CLARK-DES MOINES-HENRY-JEFFERSON-KEOKUK-LEE-LOUISA-SCOTLAND-VAN BUREN-WASHINGTON- 314 AM CDT MON JUN 11 2012 ...STRONG THUNDERSTORMS WITH GUSTY WINDS... AT 306 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SOUTHEAST OF SIGOURNEY TO 8 MILES SOUTHWEST OF BONAPARTE...MOVING EAST AT 40 MPH. * THUNDERSTORMS WILL BE NEAR... PLEASANT PLAIN...STOCKPORT AND BONAPARTE AROUND 315 AM CDT... BRIGHTON AND LOCKRIDGE AROUND 320 AM CDT... COPPOCK...HILLSBORO AND ROME AROUND 325 AM CDT... WAYLAND AND WESTWOOD AROUND 330 AM CDT... WINDS OF 40 TO 50 MPH...MAY OCCUR WITH THESE STORMS. GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE OBJECTS TO BLOW AROUND. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. LAT...LON 4131 9127 4067 9114 4060 9198 4124 9208 TIME...MOT...LOC 0810Z 271DEG 36KT 4112 9193 4061 9184 12
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 1:44 AM CDT | Special Weather Statement | DVN | Buchanan | 61 min |
| Jun 11, 3:56 AM CDT | Special Weather Statement | DVN | Des Moines, Louisa, Muscatine | 64 min |
Nearby
Special Weather Statements in Iowa, 2012Every special weather statement 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.