Alert archive / Iowa / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 90, NWS Quad Cities, IA

June 8, 2011Cedar County, Muscatine County, Scott County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 8, 2011, 10:23 PM CDT for Cedar County, Muscatine County, Scott County, Iowa. It was in force for 50 min. 2 reports 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 8, 2011, 10:23 PM CDT (03:23 UTC)
Expired: Jun 8, 2011, 11:13 PM CDT
In force: 50 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Cedar County, IA, Muscatine County, IA, Scott County, IA

The radar

The Quad Cities radar (KDVN), 9 km from the middle of the area, began a volume at 03:27 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

Time	Report	Where	Remark
Jun 8, 10:59 PM CDT	HAIL 0.25	Park View, IA
Jun 8, 11:15 PM CDT	HAIL 0.25	Park View, IA

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

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 8, 4:49 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 3.4 hours before the alert went out and 11 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2717 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 1625 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 56 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

713 
WUUS53 KDVN 090323
SVRDVN
IAC031-139-163-090430-
/O.NEW.KDVN.SV.W.0090.110609T0323Z-110609T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1023 PM CDT WED JUN 8 2011

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CEDAR COUNTY IN EAST CENTRAL IOWA...
  NORTHEASTERN MUSCATINE COUNTY IN EAST CENTRAL IOWA...
  SCOTT COUNTY IN EAST CENTRAL IOWA...

* UNTIL 1130 PM CDT.

* AT 1018 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH...AND PING PONG BALL SIZE HAIL.  THIS STORM WAS LOCATED
  APPROXIMATELY NEAR ROCHESTER...OR 8 MILES SOUTH OF TIPTON...AND
  MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WILTON...BENNETT...DURANT...WALCOTT...DONAHUE...DAVENPORT...
  ELDRIDGE...LONG GROVE...BETTENDORF...RIVERDALE...MCCAUSLAND...LE
  CLAIRE AND PRINCETON.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 262 AND 306.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY
FROM WINDOWS.

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4159 9034 4157 9040 4153 9046 4153 9122
      4176 9122 4177 9078 4173 9071 4177 9067
      4176 9062 4177 9059 4176 9058 4177 9048
      4173 9041 4174 9033 4173 9032
TIME...MOT...LOC 0323Z 270DEG 31KT 4166 9109
WIND...HAIL 60MPH 1.50IN

$$

HAASE

5 follow-up statements

846 
WWUS53 KDVN 090333
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1033 PM CDT WED JUN 8 2011

IAC031-139-163-090430-
/O.CON.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
SCOTT IA-MUSCATINE IA-CEDAR IA-
1033 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHEASTERN CEDAR...NORTHEASTERN MUSCATINE AND SCOTT COUNTIES...

AT 1031 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH...AND PING PONG BALL SIZE HAIL.  THIS STORM WAS
LOCATED APPROXIMATELY NEAR SUNBURY...OR 6 MILES NORTHWEST OF
DURANT...MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW
LIBERTY...STOCKTON...PLAINVIEW...DIXON...WALCOTT...MAYSVILLE...
DONAHUE...DAVENPORT...ELDRIDGE...DAVENPORT MUNICIPAL AIRPORT...LONG
GROVE...PARK VIEW...SCOTT COUNTY PARK...BETTENDORF...RIVERDALE...
PANORAMA PARK...MCCAUSLAND...PLEASANT VALLEY...LE CLAIRE...PRINCETON
AND PRINCETON WILDLIFE AREA.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 266 AND 306.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS STORM CAPABLE OF BLOWING DOWN TREES AND
POWER POLES. MOVE INDOORS TO A SUBSTANTIAL SHELTER SUCH AS A BASEMENT
OR INTERIOR ROOM OR HALLWAY.

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4159 9034 4157 9040 4153 9046 4153 9114
      4175 9114 4177 9078 4173 9071 4177 9067
      4176 9062 4177 9059 4176 9058 4177 9048
      4173 9041 4174 9033 4173 9032
TIME...MOT...LOC 0333Z 270DEG 31KT 4166 9097
WIND...HAIL 70MPH 1.50IN

$$

HAASE

057 
WWUS53 KDVN 090344
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1044 PM CDT WED JUN 8 2011

IAC031-139-163-090430-
/O.CON.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
SCOTT IA-MUSCATINE IA-CEDAR IA-
1044 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHEASTERN CEDAR...NORTHEASTERN MUSCATINE AND SCOTT COUNTIES...

AT 1043 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL.  THESE
STORMS WERE LOCATED APPROXIMATELY ALONG A LINE EXTENDING FROM DIXON
TO WALCOTT...OR ALONG A LINE EXTENDING FROM 15 MILES NORTHEAST OF
DURANT TO 6 MILES WEST OF DAVENPORT...MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DONAHUE...ELDRIDGE...DAVENPORT MUNICIPAL AIRPORT...LONG GROVE...PARK
VIEW...SCOTT COUNTY PARK...BETTENDORF...RIVERDALE...PANORAMA PARK...
MCCAUSLAND...PLEASANT VALLEY...LE CLAIRE...PRINCETON AND PRINCETON
WILDLIFE AREA.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 271 AND 306.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS STORM CAPABLE OF BLOWING DOWN TREES AND
POWER POLES. MOVE INDOORS TO A SUBSTANTIAL SHELTER SUCH AS A BASEMENT
OR INTERIOR ROOM OR HALLWAY.

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4159 9034 4157 9040 4153 9046 4153 9105
      4176 9103 4177 9078 4173 9071 4177 9067
      4176 9062 4177 9059 4176 9058 4177 9048
      4173 9041 4174 9033 4173 9032
TIME...MOT...LOC 0344Z 269DEG 41KT 4176 9070 4155 9070
WIND...HAIL 70MPH 1.00IN

$$

HAASE

852 
WWUS53 KDVN 090357
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1057 PM CDT WED JUN 8 2011

IAC031-090407-
/O.CAN.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
CEDAR IA-
1057 PM CDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CEDAR COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER 
HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE SEVERE THUNDERSTORM 
WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT 
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

LAT...LON 4159 9034 4157 9040 4153 9046 4153 9086
      4177 9084 4177 9078 4173 9071 4177 9067
      4176 9062 4177 9059 4176 9058 4177 9048
      4173 9041 4174 9033 4173 9032
TIME...MOT...LOC 0357Z 269DEG 41KT 4176 9050 4155 9050

$$

IAC139-163-090430-
/O.CON.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
SCOTT IA-MUSCATINE IA-
1057 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR NORTHEASTERN MUSCATINE AND SCOTT COUNTIES...

AT 1052 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL.  THESE
STORMS WERE LOCATED APPROXIMATELY ALONG A LINE EXTENDING FROM SCOTT
COUNTY PARK TO DAVENPORT...OR ALONG A LINE EXTENDING FROM 14 MILES
NORTH OF DAVENPORT TO DAVENPORT...MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BETTENDORF...RIVERDALE...PANORAMA PARK...MCCAUSLAND...PLEASANT
VALLEY...LE CLAIRE...PRINCETON AND PRINCETON WILDLIFE AREA.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 281 AND 306.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 5.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS STORM CAPABLE OF BLOWING DOWN TREES AND
POWER POLES. MOVE INDOORS TO A SUBSTANTIAL SHELTER SUCH AS A BASEMENT
OR INTERIOR ROOM OR HALLWAY.

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM
FLOODING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4159 9034 4157 9040 4153 9046 4153 9086
      4177 9084 4177 9078 4173 9071 4177 9067
      4176 9062 4177 9059 4176 9058 4177 9048
      4173 9041 4174 9033 4173 9032
TIME...MOT...LOC 0357Z 269DEG 41KT 4176 9050 4155 9050
WIND...HAIL 70MPH 1.00IN

$$

HAASE

240 
WWUS53 KDVN 090410
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1110 PM CDT WED JUN 8 2011

IAC139-090419-
/O.CAN.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
MUSCATINE IA-
1110 PM CDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MUSCATINE COUNTY
IS CANCELLED...

THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER 
HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE SEVERE THUNDERSTORM 
WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT 
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

LAT...LON 4166 9034 4159 9034 4157 9040 4153 9046
      4153 9061 4176 9067 4176 9062 4177 9059
      4176 9058 4177 9048 4173 9041 4173 9035
      4174 9033 4173 9032
TIME...MOT...LOC 0409Z 269DEG 41KT 4176 9032 4155 9032

$$

IAC163-090430-
/O.CON.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
SCOTT IA-
1110 PM CDT WED JUN 8 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR EASTERN SCOTT COUNTY...

AT 1104 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH...AND QUARTER SIZE HAIL.  THESE STORMS WERE
LOCATED APPROXIMATELY ALONG A LINE EXTENDING FROM MCCAUSLAND TO
PLEASANT VALLEY...OR ALONG A LINE EXTENDING FROM 10 MILES SOUTHWEST
OF CLINTON TO EAST MOLINE...MOVING EAST AT 45 MPH.

THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 293 AND 306.

THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY
FROM WINDOWS.

PLEASE REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

&&

LAT...LON 4166 9034 4159 9034 4157 9040 4153 9046
      4153 9061 4176 9067 4176 9062 4177 9059
      4176 9058 4177 9048 4173 9041 4173 9035
      4174 9033 4173 9032
TIME...MOT...LOC 0409Z 269DEG 41KT 4176 9032 4155 9032
WIND...HAIL 60MPH 1.00IN

$$

HAASE

242 
WWUS53 KDVN 090413
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1113 PM CDT WED JUN 8 2011

IAC163-090423-
/O.CAN.KDVN.SV.W.0090.000000T0000Z-110609T0430Z/
SCOTT IA-
1113 PM CDT WED JUN 8 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN SCOTT COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER 
HAS WEAKENED. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN 
CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM CDT 
THURSDAY MORNING FOR SOUTHEASTERN IOWA AND NORTHWEST ILLINOIS.

LAT...LON 4166 9034 4159 9034 4157 9040 4153 9046
      4153 9061 4176 9067 4176 9062 4177 9059
      4176 9058 4177 9048 4173 9041 4173 9035
      4174 9033 4173 9032
TIME...MOT...LOC 0413Z 269DEG 41KT 4176 9026 4155 9026

$$

HAASE

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 8, 3:15 PM CDT, 7 hours 8 minutes earlier.

Area forecast discussion, Jun 8, 3:15 PM CDT, 7 hours 8 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
315 PM CDT WED JUN 8 2011

.SYNOPSIS...
REGION WAS UNDER BROAD SOUTHWESTERLY 500MB FLOW BETWEEN A
SOUTHEASTERN U.S. RIDGE AND A DEVELOPING PACIFIC NORTHWEST TROF. AT
THE SURFACE AT 17Z  A COLD FRONT BISECTED IA FROM NE TO SW AND WAS
MARKED BY THE BACK EDGE OF A DEVELOPING CU FIELD ON THE VISIBLE
SATELLITE IMAGERY.  A MID LEVEL S/W CROSSING THE NORTHERN PLAINS AND
SOUTH CENTRAL CANADA WAS PROVIDING SOME PUSH FOR THE FRONT.  THE
POST FRONTAL AIRMASS WAS DRY AND COOL WITH NOON TEMPERATURES IN THE
80S AND LOW TO MID 50 DEWPOINTS OVER NW IA. A WARM/UNSTABLE AIRMASS
WAS IN PLACE AHEAD OF THE FRONT WITH SURFACE TEMPERATURES IN THE
UPPER 80S TO LOW 90S AND DEWPOINTS IN THE UPPER 60S TO LOW 70S.  AS
OF LATE THIS MORNING THE CWFA WAS RAIN FREE WITH THE EARLY MORNING
TSRA HAVING DISSIPATED OR MOVED EAST OF THE AREA.

&&

.SHORT TERM...TONIGHT AND THURSDAY...
THE MAIN FOCUS WILL BE THE THUNDERSTORM THREAT TONIGHT AND THURSDAY
NEAR THE SURFACE FRONT AS IT CONTINUES TO SAG SOUTH THROUGH THE
CWFA.  THE 12Z MODEL RUNS SUGGEST THE BOUNDARY WILL MOVE THROUGH THE
CWFA BY LATE TONIGHT AND STALL OVER NORTHERN MO THURSDAY.  THE FRONT
WILL BE PASSING THROUGH THE SOUTHERN HALF OF THE CWFA DURING PRIME
HEATING LATE THIS AFTERNOON AND THIS EVENING. THE HIGHEST POPS
TONIGHT WILL BE LOCATED ALONG THE BOUNDARY IN THE SOUTHERN HALF OF
THE CWFA WITH POPS TAPERING OFF TO THE NORTH INTO THE DRIER MORE
STABLE AIRMASS.  A SUBSTANTIAL CAP EXISTS OVER THE SOUTH PER 12Z UA
DATA SHOWING H7 TEMPS IN THE 10 TO 13C RANGE OVER SOUTHERN IA AND
NRN MO.  MODEL PROGS SUGGEST CAP WILL WEAKEN BY LATE AFTERNOON SO
ANTICIPATE TSRA FIRING ALONG THE BOUNDARY BETWEEN 21Z AND 00Z.  BY
21Z RUC SURFACE BASED CAPES ARE AT OR ABOVE 4000 J/KG.  DEEP LAYER
SHEAR OVER THE AREA WILL BE MARGINAL BUT WITH THE HIGH CAPE SEVERE
STORMS WILL BE LIKELY WITH THE MAIN THREAT BEING DAMAGING WINDS.
HIGH FREEZING LEVELS SHOULD LIMIT LARGE HAIL...UNLESS UPDRAFTS START
TO ROTATE.  DEEP LAYER HELICITIES AROUND 150 NEAR THE BOUNDARY
SUPPORT SOME ROTATION WHICH COULD SUPPORT SIGNIFICANT HAIL
ESPECIALLY WITH THE INITIAL DEVELOPMENT.  FLASH FLOODING WILL ALSO
BE A CONCERN WITH PW/S IN EXCESS OF 1.75 INCHES OVER THE SOUTHERN
THIRD OF THE CWFA.  THE QUESTION IS IF ANY BACKBUILDING/REPEAT
ACTIVITY WILL OCCUR.  THE 12Z MODEL DATA SUPPORTS A MORE PROGRESSIVE
SCENARIO FOR ANY CONVECTION DEVELOPING ALONG AND NORTH OF THE
BOUNDARY.  A MORE FAVORABLE ENVIRONMENT FOR BACK BUILDING EXISTS
AHEAD OF THE FRONT...BUT THIS AREA WILL STILL BE CAPPED. HAVE
MENTIONED HEAVY RAIN IN THE FORECAST AND WILL HOLD OFF ISSUING A
WATCH FOR NOW WITH THE QPF AXIS EXEPCTED TO BE BETWEEN I80 AND
HIGHWAY 34 BETWEEN OTM AND MQB.  IF THE HEAVY RAINS SET UP A LITTLE
MORE TO THE SOUTH THAN A WATCH MAY BE NEEDED SINCE THIS AREA
EXPERIENCED HEAVYR RAINS LATE LAST WEEK AND FLASH FLOOD GUIDANCE IS
LOWER. OVERNIGHT LOWS IN THE NORTHWEST WERE LOWERED A FEW DEGREES
WITH OBSERVATIONAL AND MODEL DATA SUPPORTING A GOOD PUSH BEHIND THE
FRONT.

FOR THURSDAY WILL KEEP THE HIGHER POPS...IN THE LIKELY
CATEGORY...OVER THE SOUTHERN THIRD OF THE CWFA...JUST NORTH OF THE
STALLED NORTHERN MO FRONT THEN TAPERING OFF TO SLIGHT CHANCE IN THE
FAR NORTH.  HIGHS WILL BE CONSIDERABLY LOWER THAN TODAYS RANGING
FROM THE LOW 70S NORTH TO LOW TO MID 80S IN THE SOUTH.

.LONG TERM...THURSDAY NIGHT THROUGH WEDNESDAY...
THE FRONT WILL STILL BE STALLED OVER OR JUST TO OUR SOUTH THURSDAY
NIGHT CONTINUING THE THUNDERTORM THREAT ESPECIALLY CENTRAL AND
SOUTH.  MODELS SHOW A SIGNIFICANT UPPER TROF MOVING INTO THE
NORTHERN/CENTRAL PLAINS FRIDAY.  THE TROF WILL SPIN UP A SURFACE LOW
ALONG THE FRONT WITH THE LOW MOVING THROUGH THE SOUTHERN CWFA
FRIDAY.  THERE IS SOME QUESTION ON THE TIMING OF THE WAVE MOVING
THROUGH BUT AT THIS POINT IT LOOKS LIKE EITHER LATE MORNING OR
AFTERNOON.  THE AFTERNOON TIMING WOULD ENHANCE THE SEVERE WEATHER
THREAT...ESPECIALLY THE CHANCE FOR SUPERCELLS AND THE TORNADO RISK.
THE AIRMASS WILL ALSO REMAIN QUITE MOIST SO A HEAVY RAIN THREAT WILL
EXIST OVER THE SOUTHERN CWFA THURDAY NIGHT AND FRIDAY.

AFTER THE WAVE MOVES THROUGH THE REGION FRIDAY...THEN THE WEATHER
SHOULD QUITE DOWN AS SURFACE AND UPPER RIDGING BUILD INTO THE REGION
FOR SATURDAY AND SATURDAY NIGHT.  THE ARRIVAL OF THE RIDGING WILL
ALSO BRING MORE COMFORTABLE TEMPERATURES AND HUMIDITY TO THE REGION
FOR THE WEEKEND.

AN ACTIVE WEATHER PATTERN IS EXPECTED TO BECOME ESTABLISHED AGAIN
OVER THE REGION FOR SUNDAY INTO WEDNESDAY.  THE UPPER RIDGING
WILL MOVE EAST OF THE AREA SUNDAY WITH A MORE ZONE FLOW SETTING UP
FOR EARLY NEXT WEEK.  MODEL PROGS SHOW AT LEAST A COUPLE OF
SIGINIFCANT PIECES OF ENERGY IN THE ZONAL FLOW WHICH WILL KEEP A
THREAT OF THUNDERSTORMS IN THE FORECAST.  TEMPERATURES THROUGH THE
PERIOD SHOULD BE NEAR NORMAL FOR MID JUNE.  ..DLF..
&&

.AVIATION...
CU DEVLPG ALONG THE COLD FRONT SHOULD RESULT IN TSRA INITIATION
20Z-22Z. RUC TRENDS SUGGEST RAPID TSRA DEVLPMT WITH A LINE DVLPG BY
00Z/09. MOISTURE POOLING ALONG COLD FRONT AND POTENTIAL PRECIP
LOADING IN DOWNDRAFTS COULD RESULT IN SVR TSRA AT KCID/KDBQ.
HOWEVER...18Z TAFS FOR ALL SITES HAVE G45KT AND 3KFT CIGS WITH 1SM
BUT POTENTIAL EXISTS FOR LOWER VSBYS/CIGS. ONCE INITIAL LINE PASSES
VSBYS SHOULD GENERALLY REMAIN 3-5SM WITH VCTS AND CIGS NEAR 3KFT.
..08..

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
IL...NONE.
MO...NONE.

&&

DLF/08

Hazardous weather outlook, Jun 8, 1:20 PM CDT, 9 hours 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
120 PM CDT WED JUN 8 2011

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-090930-
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
120 PM CDT WED JUN 8 2011

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...THIS AFTERNOON AND TONIGHT

ANOTHER HOT AND HUMID DAY IS EXPECTED TODAY...AND A HEAT ADVISORY
REMAINS IN EFFECT THROUGH 7 PM THIS EVENING FOR MUCH OF THE OUTLOOK
AREA. HEAT INDEX READINGS WILL RANGE FROM 98 TO 104 DEGREES THIS
AFTERNOON.

LATE THIS AFTERNOON AND THIS EVENING...STRONG TO SEVERE
THUNDERSTORMS ARE EXPECTED. THE ATMOSPHERE WILL BE VERY
UNSTABLE...AND THUNDERSTORMS WILL EXPLODE OVER EASTERN
IOWA...BEFORE SPREADING EAST AND SOUTH OVER THE REST OF THE
OUTLOOK AREA. STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL
DURING THE AFTERNOON...AND BY THE EVENING...AS STORMS FORM INTO A
LINE...DAMAGING WINDS WILL BE POSSIBLE. STORMS WILL HAVE A LARGE
POOL OF MOISTURE ALOFT TO SUPPLY VERY HEAVY RAINFALL AMOUNTS. IN
ADDITION...THUNDERSTORMS TONIGHT WILL LIKELY MOVE OVER THE SAME
AREAS SEVERAL TIMES...AND FLASH FLOODING IS POSSIBLE. THE STORM
PREDICTION CENTER IS FORECASTING A SLIGHT RISK FOR SEVERE
THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A NEARLY STATIONARY FRONTAL BOUNDARY WILL BE LOCATED IN SOUTHEAST
IOWA AND WESTERN ILLINOIS ON THURSDAY. THIS WILL BE THE FOCUS FOR
CLUSTERS OF THUNDERSTORMS...INCLUDING SUPERCELLS...DURING THE
AFTERNOON INTO THURSDAY NIGHT. THE MAIN THREAT WILL BE LARGE HAIL.
THE STORM PREDICTION CENTER HAS A SLIGHT RISK FOR LOCATIONS ALONG
AND SOUTH OF HIGHWAY 30.

LOW PRESSURE WILL BE TRACKING OUT OF THE SOUTHERN PLAINS AND
TOWARDS IOWA THURSDAY NIGHT. WIDESPREAD RAIN AND THUNDERSTORMS CAN
BE EXPECTED OVER MUCH OF THE OUTLOOK AREA. HEAVY RAINFALL AND
LARGE HAIL WILL ACCOMPANY THE STRONGER STORMS.

THE SURFACE LOW AND WARM FRONT WILL PUSH TO EASTERN IOWA AND
NORTHERN ILLINOIS ON FRIDAY AFTERNOON AND EVENING. THUNDERSTORMS
WITH DAMAGING WINDS AND LARGE HAIL ARE POSSIBLE. AS STRONGER WINDS
ALOFT ARRIVE AND BACKING WINDS OCCUR NEAR THE WARM FRONT OVER
EASTERN IOWA AND NORTHERN ILLINOIS...SUPERCELLS PRODUCING A COUPLE
OF TORNADOES ARE POSSIBLE. THE STORM PREDICTION CENTER HAS A
SLIGHT RISK ROUGHLY SOUTH AND EAST OF AN OTTUMWA TO DUBUQUE LINE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION LIKELY WILL BE NEEDED LATE THIS AFTERNOON AND
EVENING.

ERVIN/HAASE

In the hours before

Local storm report, Jun 8, 9:41 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
941 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0932 PM     HAIL             ORANGEVILLE             42.47N 89.64W
06/08/2011  E1.00 INCH       STEPHENSON         IL   PUBLIC

&&

GROSS

Local storm report, Jun 8, 9:45 PM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
945 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0927 PM     TSTM WND GST     NW HANOVER              42.26N 90.28W
06/08/2011  E70.00 MPH       JO DAVIESS         IL   TRAINED SPOTTER

            NUMEROUS TREESDOWN

0930 PM     HAIL             1 N MONMOUTH            42.08N 90.88W
06/08/2011  E1.00 INCH       JACKSON            IA   TRAINED SPOTTER

0931 PM     TSTM WND GST     5 NW LENA               42.43N 89.90W
06/08/2011  M62.00 MPH       STEPHENSON         IL   EMERGENCY MNGR

&&

GROSS

Local storm report, Jun 8, 9:54 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
954 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0556 PM     HAIL             JESUP                   42.48N 92.07W
06/08/2011  M1.00 INCH       BUCHANAN           IA   TRAINED SPOTTER

0557 PM     HAIL             JESUP                   42.48N 92.07W
06/08/2011  E1.25 INCH       BUCHANAN           IA   TRAINED SPOTTER

            NICKEL TO HALF DOLLAR SIZE HAIL

0557 PM     HAIL             JESUP                   42.48N 92.07W
06/08/2011  M1.25 INCH       BUCHANAN           IA   TRAINED SPOTTER

            HEAVY RAIN ALSO OCCURRING. ONE HALF INCH OF RAIN IN A
            HALF HOUR. SOME STREET FLOODING IS OCCURRING.

0630 PM     HAIL             BRANDON                 42.31N 92.00W
06/08/2011  E1.00 INCH       BUCHANAN           IA   PUBLIC

0636 PM     HAIL             INDEPENDENCE            42.45N 91.95W
06/08/2011  E0.25 INCH       BUCHANAN           IA   TRAINED SPOTTER

            HAIL STARTING TO COVER THE GROUND.

0638 PM     HAIL             ROWLEY                  42.37N 91.84W
06/08/2011  E0.88 INCH       BUCHANAN           IA   PUBLIC

0700 PM     HAIL             S MOUNT AUBURN          42.26N 92.09W
06/08/2011  E1.50 INCH       BENTON             IA   TRAINED SPOTTER

0709 PM     HAIL             NW VINTON               42.16N 92.03W
06/08/2011  E0.75 INCH       BENTON             IA   EMERGENCY MNGR

0710 PM     HAIL             N VINTON                42.16N 92.03W
06/08/2011  M1.00 INCH       BENTON             IA   EMERGENCY MNGR

0715 PM     HAIL             2 N VINTON              42.19N 92.03W
06/08/2011  E1.50 INCH       BENTON             IA   PUBLIC

            SPOTTER NETWORK

0717 PM     HAIL             N VINTON MEMORIAL AIRPO 42.20N 92.03W
06/08/2011  E1.75 INCH       BENTON             IA   EMERGENCY MNGR

            SEVERAL REPORTS OF GOLF BALL SIZED HAIL. EVENT CONTINUING

0727 PM     HAIL             URBANA                  42.22N 91.88W
06/08/2011  E0.75 INCH       BENTON             IA   LAW ENFORCEMENT

0727 PM     HAIL             WSW URBANA              42.22N 91.88W
06/08/2011  E1.50 INCH       BENTON             IA   TRAINED SPOTTER

            MOST OF HAIL WAS HALF INCH WITH A FEW PING PONG BALL SIZE

0730 PM     TSTM WND GST     3 NW SHELLSBURG         42.12N 91.91W
06/08/2011  E70.00 MPH       BENTON             IA   PUBLIC

            65-70 MPH WINDS

0730 PM     HAIL             3 NW SHELLSBURG         42.12N 91.91W
06/08/2011  E1.00 INCH       BENTON             IA   PUBLIC

0734 PM     HAIL             2 N SHELLSBURG          42.12N 91.87W
06/08/2011  E1.00 INCH       BENTON             IA   PUBLIC

0734 PM     TSTM WND DMG     4 W CEDAR RAPIDS        41.97N 91.74W
06/08/2011                   LINN               IA   TRAINED SPOTTER

            LARGE TREE DOWN BLOCKING THE ROAD

0735 PM     TSTM WND GST     5 N CEDAR RAPIDS        42.04N 91.68W
06/08/2011  E70.00 MPH       LINN               IA   TRAINED SPOTTER

            REPORT OF POWER OUTAGE ON THE NORTHEAST SIDE OF CEDAR
            RAPIDS.

0745 PM     FUNNEL CLOUD     NE ANAMOSA              42.11N 91.28W
06/08/2011                   JONES              IA   LAW ENFORCEMENT

0745 PM     TSTM WND GST     5 N CEDAR RAPIDS        42.04N 91.68W
06/08/2011  E80.00 MPH       LINN               IA   TRAINED SPOTTER

            WIND GUST OF 70 TO 80 MPH. LARGE BRANCHES IN THE MIDDLE
            OF THE STREET.

0750 PM     TSTM WND GST     1 NW MARION             42.05N 91.61W
06/08/2011  E60.00 MPH       LINN               IA   TRAINED SPOTTER

0755 PM     TSTM WND DMG     2 ENE HIAWATHA          42.06N 91.65W
06/08/2011                   LINN               IA   TRAINED SPOTTER

            HALF INCH DIAMETER BRANCHES DOWN WITH PICNIC TABLE BLOWN
            OVER.

0758 PM     HAIL             1 SE CENTRAL CITY       42.19N 91.51W
06/08/2011  E1.75 INCH       LINN               IA   PUBLIC

            RADAR ESTIMATED

0802 PM     TSTM WND DMG     2 ENE HIAWATHA          42.06N 91.65W
06/08/2011                   LINN               IA   TRAINED SPOTTER

            ROOF DAMAGE TO HOMES. SHED DESTROYED. ALSO REPORTED DIME
            SIZED HAIL.

0802 PM     TSTM WND GST     4 N CEDAR RAPIDS        42.03N 91.68W
06/08/2011  E40.00 MPH       LINN               IA   TRAINED SPOTTER

0804 PM     HAIL             PRAIRIEBURG             42.24N 91.43W
06/08/2011  M1.00 INCH       LINN               IA   TRAINED SPOTTER

            SPOTTER RELAYED A HAM RADIO REPORT

0805 PM     HAIL             2 SSW PRAIRIEBURG       42.21N 91.44W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

            MOST HAIL 1/4 TO 1/2 INCH WITH A FEW QUARTERS.

0810 PM     HAIL             1 S CENTER POINT        42.17N 91.78W
06/08/2011  M0.75 INCH       LINN               IA   COCORAHS

0811 PM     TSTM WND GST     ANAMOSA                 42.11N 91.28W
06/08/2011  M60.00 MPH       JONES              IA   MESONET

            IOWA DOT REPORT

0813 PM     TSTM WND DMG     ALBURNETT               42.15N 91.62W
06/08/2011                   LINN               IA   EMERGENCY MNGR

            NUMEROUS TREES DOWN

0813 PM     TSTM WND DMG     ROBINS                  42.08N 91.67W
06/08/2011                   LINN               IA   EMERGENCY MNGR

            NUMEROUS TREES DOWN

0814 PM     TSTM WND GST     1 ESE ANAMOSA           42.10N 91.27W
06/08/2011  E50.00 MPH       JONES              IA   TRAINED SPOTTER

0814 PM     HAIL             1 ESE ANAMOSA           42.10N 91.27W
06/08/2011  E0.88 INCH       JONES              IA   TRAINED SPOTTER

0819 PM     HAIL             3 NNW CEDAR RAPIDS      42.02N 91.70W
06/08/2011  E0.50 INCH       LINN               IA   TRAINED SPOTTER

0819 PM     HAIL             5 NNE CEDAR RAPIDS      42.04N 91.65W
06/08/2011  E0.25 INCH       LINN               IA   TRAINED SPOTTER

0830 PM     HAIL             HIAWATHA                42.05N 91.68W
06/08/2011  E0.88 INCH       LINN               IA   EMERGENCY MNGR

0835 PM     HAIL             W NORWAY                41.90N 91.93W
06/08/2011  E0.75 INCH       BENTON             IA   TRAINED SPOTTER

0835 PM     HAIL             2 WNW CEDAR RAPIDS      41.98N 91.70W
06/08/2011  E0.50 INCH       LINN               IA   TRAINED SPOTTER

            DIME SIZED HAIL. GROWING LARGER

0840 PM     TSTM WND GST     1 SSE ATKINS            41.99N 91.86W
06/08/2011  E60.00 MPH       BENTON             IA   TRAINED SPOTTER

0840 PM     HAIL             2 WNW CEDAR RAPIDS      41.98N 91.70W
06/08/2011  E1.25 INCH       LINN               IA   TRAINED SPOTTER

            QUARTER TO HALF DOLLAR

0840 PM     TSTM WND GST     1 NE MARION             42.05N 91.58W
06/08/2011  E70.00 MPH       LINN               IA   TRAINED SPOTTER

0841 PM     HAIL             5 NNE CEDAR RAPIDS      42.04N 91.63W
06/08/2011  E1.75 INCH       LINN               IA   TRAINED SPOTTER

0843 PM     HAIL             NW CEDAR RAPIDS         41.97N 91.67W
06/08/2011  E2.00 INCH       LINN               IA   PUBLIC

0845 PM     HAIL             3 NNW CEDAR RAPIDS      42.02N 91.70W
06/08/2011  E0.50 INCH       LINN               IA   TRAINED SPOTTER

            1/2 TO 5/8 INCH HAIL

0845 PM     HAIL             1 ENE CEDAR RAPIDS      41.98N 91.65W
06/08/2011  E1.75 INCH       LINN               IA   TRAINED SPOTTER

            QUARTER TO GOLF BALL

0850 PM     HAIL             1 NW CEDAR RAPIDS       41.98N 91.68W
06/08/2011  E1.50 INCH       LINN               IA   TRAINED SPOTTER

0852 PM     HAIL             CEDAR RAPIDS            41.97N 91.67W
06/08/2011  E1.00 INCH       LINN               IA   EMERGENCY MNGR

0852 PM     HAIL             2 NE CEDAR RAPIDS       41.99N 91.65W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

0853 PM     HAIL             NORTH ENGLISH           41.52N 92.08W
06/08/2011  E1.75 INCH       IOWA               IA   TRAINED SPOTTER

0854 PM     HAIL             NORTH ENGLISH           41.52N 92.08W
06/08/2011  M1.00 INCH       IOWA               IA   CO-OP OBSERVER

0855 PM     HAIL             1 NE MARION             42.05N 91.58W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

            SHREDDING LEAVES FROM THE TREES. ALSO REPORTS WIND GUSTS
            OF 50 TO 60 MPH.

0855 PM     HAIL             2 NNE CEDAR RAPIDS      41.99N 91.66W
06/08/2011  M1.00 INCH       LINN               IA   TRAINED SPOTTER

0855 PM     TSTM WND GST     1 NE MARION             42.04N 91.58W
06/08/2011  E60.00 MPH       LINN               IA   TRAINED SPOTTER

            50 TO 60 MPH WINDS

0857 PM     HAIL             2 E MARION              42.04N 91.55W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

            MOST HAIL WAS 3/4 INCH

0857 PM     HAIL             SE CEDAR RAPIDS         41.97N 91.67W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

            DIMES TO QUARTERS.

0857 PM     HAIL             3 E CEDAR RAPIDS        41.97N 91.61W
06/08/2011  E1.00 INCH       LINN               IA   TRAINED SPOTTER

            PENNY TO QUARTER SIZED HAIL.

0910 PM     NON-TSTM WND GST 1 ESE NORA              42.46N 89.93W
06/08/2011  E50.00 MPH       JO DAVIESS         IL   TRAINED SPOTTER

0915 PM     HAIL             MOUNT VERNON            41.92N 91.42W
06/08/2011  E1.00 INCH       LINN               IA   PUBLIC

            HAIL COVERED THE ROAD

0916 PM     HEAVY RAIN       5 E CEDAR RAPIDS        41.97N 91.58W
06/08/2011  M1.60 INCH       LINN               IA   TRAINED SPOTTER

            RAINFALL IN THE PAST 23 MINUTES.

0920 PM     HAIL             7 N WELLMAN             41.57N 91.84W
06/08/2011  E1.00 INCH       IOWA               IA   PUBLIC

0925 PM     TSTM WND DMG     1 ESE HANOVER           42.25N 90.27W
06/08/2011                   JO DAVIESS         IL   TRAINED SPOTTER

            LARGE MAPLE TREE DOWN WITH FURNITURE BLOWN AROUND IN THE
            YARD OF HOUSE.

0927 PM     TSTM WND GST     NW HANOVER              42.26N 90.28W
06/08/2011  E70.00 MPH       JO DAVIESS         IL   TRAINED SPOTTER

            NUMEROUS TREESDOWN

0930 PM     HAIL             1 N MONMOUTH            42.08N 90.88W
06/08/2011  E1.00 INCH       JACKSON            IA   TRAINED SPOTTER

0931 PM     TSTM WND GST     5 NW LENA               42.43N 89.90W
06/08/2011  M62.00 MPH       STEPHENSON         IL   EMERGENCY MNGR

0932 PM     HAIL             ORANGEVILLE             42.47N 89.64W
06/08/2011  E1.00 INCH       STEPHENSON         IL   PUBLIC

&&

GROSS

Local storm report, Jun 8, 9:58 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
958 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0947 PM     TSTM WND GST     2 NW FREEPORT           42.31N 89.65W
06/08/2011  E50.00 MPH       STEPHENSON         IL   TRAINED SPOTTER

&&

GROSS

Local storm report, Jun 8, 10:06 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1006 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0954 PM     TSTM WND DMG     ROCK CITY               42.41N 89.47W
06/08/2011                   STEPHENSON         IL   PUBLIC

            POWER LINES DOWN ON HWY 75 NEAR TOWN...RELAYED BY MEDIA

&&

GROSS

Local storm report, Jun 8, 10:12 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1012 PM CDT WED JUN 08 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0955 PM     TSTM WND GST     FREEPORT ALBERTUS AIRPO 42.25N 89.58W
06/08/2011  M52 MPH          STEPHENSON         IL   AWOS

&&

GROSS

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 7:03 PM CDT	Severe Thunderstorm Warning	DVN	Benton	42 min
Jun 8, 7:29 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Linn	61 min
Jun 8, 7:45 PM CDT	Severe Thunderstorm Warning	DVN	Jones, Linn	75 min
Jun 8, 7:53 PM CDT	Tornado Warning	DVN	Jones, Linn	37 min
Jun 8, 8:32 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	13 min
Jun 8, 8:47 PM CDT	Severe Thunderstorm Warning	DVN	Jackson	58 min
Jun 8, 8:54 PM CDT	Severe Thunderstorm Warning	DVN	Jones, Linn	51 min
Jun 8, 8:57 PM CDT	Severe Thunderstorm Warning	DVN	Iowa, Johnson, Keokuk, Washington	63 min
Jun 8, 9:00 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	28 min
Jun 8, 9:07 PM CDT	Severe Thunderstorm Warning	DVN	Johnson	44 min
Jun 8, 9:23 PM CDT	Severe Thunderstorm Warning	DVN	Cedar	52 min
Jun 8, 9:26 PM CDT	Severe Thunderstorm Warning	DVN	Keokuk	21 min
Jun 9, 12:06 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Muscatine, Scott	29 min
Jun 9, 12:27 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton	52 min
Jun 9, 3:05 AM CDT	Special Weather Statement	DVN	Benton	40 min
Jun 9, 3:12 AM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	28 hr
Jun 9, 5:12 AM CDT	Severe Thunderstorm Warning	DVN	Scott	63 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2011 Every severe thunderstorm warning in 2011

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.