Alert archive / Illinois / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 94, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 9, 2011, 5:12 AM CDT for 4 counties in Illinois; Scott County, Iowa. It was in force for 63 min. 16 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 9, 2011, 5:12 AM CDT (10:12 UTC)
- Expired
- Jun 9, 2011, 6:15 AM CDT
- In force
- 63 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Scott County, IA, Henry County, IL, Mercer County, IL, Rock Island County, IL, Whiteside County, IL
The radar
The Quad Cities radar (KDVN), 32 km from the middle of the area, began a volume at 10:15 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 9, 5:19 AM CDT | TSTM WND GST 52 | Davenport, IA | MEASURED AT THE NATIONAL WEATHER SERVICE OFFICE. |
| Jun 9, 5:19 AM CDT | TSTM WND GST 52 | Davenport Municipal Air, IA | |
| Jun 9, 5:20 AM CDT | TSTM WND GST 70 | Moline, IL | WIND GUSTS ESTIMATED TO BE 60 TO 70 MPH NEAR THE ROCK ISLAND ARSENAL BRIDGE IN MOLINE. |
| Jun 9, 5:22 AM CDT | TSTM WND GST 71 | 3 Ssw Bettendorf, IA | DELAYED REPORT. RWIS DATA FROM JUNE 9TH. |
| Jun 9, 5:22 AM CDT | TSTM WND GST 71 | 4 Ssw Bettendorf, IL | DELAYED REPORT. RWIS DATA FROM JUNE 9TH. |
| Jun 9, 5:25 AM CDT | TSTM WND DMG | Bettendorf, IA | SEVERAL 8 INCH DIAMETER BRANCHES DOWN AT 8TH AND STATE STREETS IN BETTENDORF. |
| Jun 9, 5:25 AM CDT | TSTM WND GST 63 | Moline, IL | MEASURED AT THE QUAD CITY INTERNATIONAL AIRPORT. |
| Jun 9, 5:25 AM CDT | TSTM WND GST 63 | Moline Quad-City Airpor, IL | MEASURED AT THE QUAD CITY INTERNATIONAL AIRPORT. |
| Jun 9, 5:26 AM CDT | TSTM WND DMG | Moline, IL | HUGE TREE BRANCHES DOWN. |
| Jun 9, 5:26 AM CDT | TSTM WND GST 75 | Moline, IL | |
| Jun 9, 5:29 AM CDT | HAIL 0.75 | Moline, IL | PEA TO DIME SIZED HAIL. |
| Jun 9, 5:32 AM CDT | TSTM WND GST 61 | 3 Ssw Bettendorf, IA | DELAYED REPORT. RWIS DATA FROM JUNE 9TH. |
| Jun 9, 5:32 AM CDT | TSTM WND GST 61 | 4 Ssw Bettendorf, IL | DELAYED REPORT. RWIS DATA FROM JUNE 9TH. |
| Jun 9, 5:34 AM CDT | TSTM WND GST 60 | 6 Ne East Moline, IL | |
| Jun 9, 5:40 AM CDT | TSTM WND DMG | Sse Le Claire, IA | IN A 3 BLOCK AREA IN LE CLAIRE MANY WHOLE TREES AND LARGE BRANCHES DOWN...SOME ON HOUSES. |
| Jun 9, 5:50 AM CDT | TSTM WND GST 50 | Colona, IL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 14 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.
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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 10.2 hours before the alert went out and 26 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
320 WUUS53 KDVN 091012 SVRDVN IAC163-ILC073-131-161-195-091115- /O.NEW.KDVN.SV.W.0094.110609T1012Z-110609T1115Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 512 AM CDT THU JUN 9 2011 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN SCOTT COUNTY IN EAST CENTRAL IOWA... HENRY COUNTY IN NORTHWEST ILLINOIS... NORTHEASTERN MERCER COUNTY IN NORTHWEST ILLINOIS... EASTERN ROCK ISLAND COUNTY IN NORTHWEST ILLINOIS... SOUTHWESTERN WHITESIDE COUNTY IN NORTHWEST ILLINOIS... * UNTIL 615 AM CDT. * AT 507 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR ANDALUSIA...OR 6 MILES SOUTHWEST OF ROCK ISLAND...AND MOVING EAST AT 60 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCK ISLAND ARSENAL...CABLE...SHERRARD...MOLINE QUAD-CITY AIRPORT... MOLINE...BETTENDORF...RIVERDALE...COAL VALLEY...EAST MOLINE... SILVIS...HAMPTON...WARNER...ORION...LE CLAIRE...LYNN CENTER... PRINCETON...COLONA...RAPIDS CITY...PORT BYRON...CORDOVA... CLEVELAND...ANDOVER...OSBORN...CAMBRIDGE...GENESEO...ERIE... GALVA...ATKINSON AND PROPHETSTOWN. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 290 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY FROM WINDOWS. && LAT...LON 4169 8991 4115 8994 4125 9075 4167 9068 TIME...MOT...LOC 1012Z 269DEG 52KT 4144 9057 WIND...HAIL 60MPH 1.00IN $$
9 follow-up statements
058 WWUS53 KDVN 091018 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 518 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 518 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND SOUTHEASTERN SCOTT COUNTIES... AT 515 AM CDT...TRAINED SPOTTERS AND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR MILAN...OR NEAR ROCK ISLAND...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BETTENDORF...RIVERDALE...COAL VALLEY...PANORAMA PARK...SWEDONA...EAST MOLINE...CAMPBELLS ISLAND...SUNNY HILL ESTATES...PLEASANT VALLEY... SUNNY HILL...SILVIS HEIGHTS...SILVIS...HAMPTON...ILLINIWEK PARK... OPHIEM...CARBON CLIFF...WARNER...ORION...LYNN CENTER...LE CLAIRE... BARSTOW...COLONA...PRINCETON...RAPIDS CITY...PORT BYRON...DAYTON... GREEN RIVER...CORDOVA...CLEVELAND...MORRISTOWN...ANDOVER...OSCO... OSBORN...JOSLIN...SHADY BEACH...CAMBRIDGE...HILLSDALE...ULAH... GENESEO...BISHOP HILL...ERIE...GALVA...SPRING HILL...GERMAN CORNER... ATKINSON...PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT... PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 289 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY FROM WINDOWS. && LAT...LON 4169 8991 4115 8994 4125 9075 4167 9068 TIME...MOT...LOC 1018Z 268DEG 46KT 4144 9049 WIND...HAIL 65MPH 1.00IN $$ ERVIN
109 WWUS53 KDVN 091024 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 524 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 524 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND SOUTHEASTERN SCOTT COUNTIES... AT 520 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR COAL VALLEY...OR NEAR MOLINE...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LYNN CENTER...LE CLAIRE...BARSTOW...COLONA...PRINCETON...RAPIDS CITY... PORT BYRON...DAYTON...GREEN RIVER...CLEVELAND...CORDOVA... MORRISTOWN...ANDOVER...OSCO...OSBORN...JOSLIN...CAMBRIDGE...SHADY BEACH...HILLSDALE...ULAH...GENESEO...BISHOP HILL...ERIE...GALVA... SPRING HILL...GERMAN CORNER...ATKINSON...PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT...PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 289 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. 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. THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM FLOODING. && LAT...LON 4169 8991 4115 8994 4125 9075 4167 9068 TIME...MOT...LOC 1024Z 268DEG 46KT 4144 9039 WIND...HAIL 60MPH 1.00IN $$ ERVIN
468 WWUS53 KDVN 091026 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 526 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 526 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND SOUTHEASTERN SCOTT COUNTIES... AT 524 AM CDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR WARNER...OR NEAR EAST MOLINE...MOVING EAST AT 55 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RAPIDS CITY...PORT BYRON...DAYTON...GREEN RIVER...CLEVELAND...CORDOVA... MORRISTOWN...ANDOVER...OSCO...OSBORN...JOSLIN...CAMBRIDGE...SHADY BEACH...HILLSDALE...ULAH...GENESEO...BISHOP HILL...ERIE...GALVA... SPRING HILL...GERMAN CORNER...ATKINSON...PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT...PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 289 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A VERY DANGEROUS STORM CAPABLE OF BLOWING DOWN TREES AND POWER POLES. MOVE INDOORS TO A SUBSTANTIAL SHELTER SUCH AS A BASEMENT OR INTERIOR ROOM OR HALLWAY. && LAT...LON 4169 8991 4115 8994 4125 9075 4167 9068 TIME...MOT...LOC 1026Z 268DEG 46KT 4144 9036 WIND...HAIL 70MPH 1.00IN $$ ERVIN
838 WWUS53 KDVN 091030 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 530 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 530 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND SOUTHEASTERN SCOTT COUNTIES... AT 528 AM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR COLONA...OR NEAR EAST MOLINE...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MORRISTOWN...OSBORN...ANDOVER...OSCO...JOSLIN...SHADY BEACH... HILLSDALE...CAMBRIDGE...GENESEO...ULAH...ERIE...BISHOP HILL...SPRING HILL...GERMAN CORNER...PORTLAND CORNERS...ATKINSON...GALVA... PROPHETSTOWN...LEON CORNERS AND KEWANEE MUNICIPAL AIRPORT. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 289 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN IOWA BETWEEN MILE MARKERS 1 AND 5. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 1 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. 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. THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM FLOODING. && LAT...LON 4169 8991 4115 8994 4125 9075 4167 9068 TIME...MOT...LOC 1030Z 275DEG 42KT 4146 9032 WIND...HAIL 70MPH 1.00IN $$ ERVIN
038 WWUS53 KDVN 091035 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 535 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 535 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND EAST CENTRAL SCOTT COUNTIES... AT 532 AM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY NEAR GREEN RIVER...OR 8 MILES EAST OF EAST MOLINE...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JOSLIN...SHADY BEACH...CAMBRIDGE...HILLSDALE...GENESEO...ULAH... BISHOP HILL...ERIE...SPRING HILL...GALVA...GERMAN CORNER... ATKINSON...PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT... PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 301 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 16 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS ALREADY PRODUCED WIND DAMAGE...AND IT REMAINS A THREAT. THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM FLOODING. && LAT...LON 4168 9043 4169 8991 4115 8994 4124 9063 TIME...MOT...LOC 1035Z 271DEG 42KT 4146 9025 WIND...HAIL 70MPH 1.00IN $$ ERVIN
142 WWUS53 KDVN 091038 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 538 AM CDT THU JUN 9 2011 IAC163-ILC073-131-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-HENRY IL-MERCER IL-ROCK ISLAND IL-WHITESIDE IL- 538 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...EASTERN ROCK ISLAND...NORTHEASTERN MERCER...HENRY AND EAST CENTRAL SCOTT COUNTIES... AT 536 AM CDT...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED APPROXIMATELY NEAR GENESEO...OR 11 MILES NORTH OF CAMBRIDGE...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ULAH... BISHOP HILL...ERIE...SPRING HILL...GALVA...GERMAN CORNER... ATKINSON...PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT... PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 301 AND 306. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 1 AND 31. THIS INCLUDES INTERSTATE 74 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 3. THIS INCLUDES INTERSTATE 280 BETWEEN MILE MARKERS 16 AND 18. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY FROM WINDOWS. THIS STORM HAS ALREADY PRODUCED WIND DAMAGE...AND IT REMAINS A THREAT. THIS STORM IS ALSO PRODUCING HEAVY RAIN AND URBAN AND SMALL STREAM FLOODING. && LAT...LON 4168 9043 4169 8991 4115 8994 4124 9063 TIME...MOT...LOC 1039Z 271DEG 42KT 4146 9019 WIND...HAIL 60MPH <1.00IN $$ ERVIN
860 WWUS53 KDVN 091050 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 550 AM CDT THU JUN 9 2011 IAC163-ILC131-091100- /O.CAN.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ SCOTT IA-MERCER IL- 550 AM CDT THU JUN 9 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MERCER AND EAST CENTRAL SCOTT COUNTIES IS CANCELLED... THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. HOWEVER...THIS STORM IS STILL CAPABLE OF PRODUCING HEAVY RAIN. LAT...LON 4115 8994 4121 9038 4168 9034 4169 8991 TIME...MOT...LOC 1050Z 271DEG 42KT 4145 9002 $$ ILC073-161-195-091115- /O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/ HENRY IL-ROCK ISLAND IL-WHITESIDE IL- 550 AM CDT THU JUN 9 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR SOUTHWESTERN WHITESIDE...NORTHEASTERN ROCK ISLAND AND HENRY COUNTIES... AT 545 AM CDT...TRAINED SPOTTERS AND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED APPROXIMATELY NEAR GENESEO...OR 12 MILES NORTHEAST OF CAMBRIDGE...MOVING EAST AT 50 MPH. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTLAND CORNERS...KEWANEE MUNICIPAL AIRPORT...PROPHETSTOWN AND LEON CORNERS. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 31. THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 19. 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 4115 8994 4121 9038 4168 9034 4169 8991 TIME...MOT...LOC 1050Z 271DEG 42KT 4145 9002 WIND...HAIL 60MPH <1.00IN $$
811
WWUS53 KDVN 091101
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
601 AM CDT THU JUN 9 2011
ILC161-091111-
/O.CAN.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/
ROCK ISLAND IL-
601 AM CDT THU JUN 9 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ROCK ISLAND
COUNTY IS CANCELLED...
THE SEVERE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER
HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE SEVERE THUNDERSTORM
WARNING HAS BEEN CANCELLED.
HOWEVER...THIS STORM IS STILL CAPABLE OF PRODUCING HEAVY RAIN AND
FREQUENT LIGHTNING.
LAT...LON 4115 8994 4119 9020 4159 9018 4160 9016
4163 9016 4164 9017 4168 9017 4169 8991
TIME...MOT...LOC 1101Z 271DEG 42KT 4144 8985
$$
ILC073-195-091115-
/O.CON.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/
HENRY IL-WHITESIDE IL-
601 AM CDT THU JUN 9 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR SOUTHWESTERN WHITESIDE AND CENTRAL HENRY COUNTIES...
AT 559 AM CDT...TRAINED SPOTTERS AND DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED APPROXIMATELY 7 MILES EAST OF ATKINSON...OR
14 MILES NORTH OF KEWANEE...MOVING EAST AT 50 MPH.
THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 18 AND
31.
THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 13 AND 17.
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 4115 8994 4119 9020 4159 9018 4160 9016
4163 9016 4164 9017 4168 9017 4169 8991
TIME...MOT...LOC 1101Z 271DEG 42KT 4144 8985
WIND...HAIL 60MPH <1.00IN
$$197
WWUS53 KDVN 091114
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
614 AM CDT THU JUN 9 2011
ILC073-195-091124-
/O.EXP.KDVN.SV.W.0094.000000T0000Z-110609T1115Z/
HENRY IL-WHITESIDE IL-
614 AM CDT THU JUN 9 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WHITESIDE AND
CENTRAL HENRY COUNTIES WILL EXPIRE AT 615 AM CDT...
LAT...LON 4115 8994 4119 9020 4159 9018 4160 9016
4163 9016 4164 9017 4168 9017 4169 8991
TIME...MOT...LOC 1114Z 271DEG 42KT 4143 8965
$$
HAASEWhat 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 9, 3:09 AM CDT, 2 hours 3 minutes earlier.
Area forecast discussion, Jun 9, 3:09 AM CDT, 2 hours 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
309 AM CDT THU JUN 9 2011
.SYNOPSIS...
THE COLD FRONT HAS MOVED SOUTH THROUGH THE CWA THIS PAST 6
HOURS...AND NOW IS FROM THE IA/MO BORDER IN CENTRAL IOWA THROUGH
JUST SOUTH OF PRINCETON ILLINOIS. STRONG TO SEVERE THUNDERSTORMS
HAVE CONTINUED TO FIRE ALL EVENING AND OVERNIGHT ON THE BACK
BUILDING TAIL OF STORMS THAT ARE MOVING THROUGH NORTHEAST ILLINOIS.
ANOTHER CLUSTER OF STORMS HAS FIRED UP IN CENTRAL IOWA AND IS MOVING
EAST AND GROWING OVER THE PAST FEW HOURS. THE PAST 12 HOURS HAVE PUT
DOWN A LOT OF RAIN...WITH SEVERAL BANDS LIKELY OVER 3 INCHES
POSSIBLE. OTHER PLACES IN THE CENTRAL CWA HAS NOT SEEN STORMS
YET...AND HAVE SEEN MUCH LOWER RAINFALL.
..ERVIN..
&&
.SHORT TERM...TODAY AND TONIGHT...
THIS MORNING WILL SEE STORMS CONTINUE TO MOVE EAST OUT OF CENTRAL
IOWA. LOCATIONS BETWEEN HIGHWAY 34 AND HIGHWAY 20 HAVE SEEN THE MOST
HEAVY RAIN SO FAR...AND APPEAR TO BE IN THE AXIS FOR MORE HEAVY RAIN
THIS MORNING. WHILE WE HAVE TAKEN THE RAIN SO FAR WITHOUT MUCH
PROBLEMS...THIS AXIS IS NOT LIKELY GOING TO ABSORB ADDITIONAL HEAVY
RAIN WITHOUT SOME FLASH FLOODING IN THE HEAVIER BANDS. A FLASH FLOOD
WATCH WILL BE ISSUED IMMEDIATELY...THROUGH TONIGHT. THE MORNING
SHOWER AND THUNDERSTORMS WILL WANE BY MID DAY LIKELY...AND AFTER A
BREAK...THE NEXT ROUND OF VERY HEAVY RAINS SHOULD COMMENCE THIS
EVENING. TONIGHT IS SIMILAR TO LAST NIGHT WITH A HUGE SUPPLY OF CAPE
TO THE SOUTH FLOWING ACROSS THE FRONT WITH VERY HIGH PWAT VALUES.
QPF WILL AGAIN BE IN THE 0.5 TO 1.5 RANGE TONIGHT...WITH BANDS OF 2
TO 4 INCHES POSSIBLE. SEVERE STORMS ARE AGAIN POSSIBLE...WITH LARGE
HAIL OVERNIGHT IN THE STRONGEST CELLS...MAINLY IN THE SOUTH HALF.
TEMPERATURES TODAY SHOULD STAY RATHER COOL..WITH 70 IN THE NORTH TO
AROUND 80 SOUTH.
..ERVIN..
.LONG TERM...FRIDAY THROUGH WEDNESDAY...
FORECAST FOCUS ON POTENTIAL FOR HEAVY RAIN AND SEVERE WEATHER FRIDAY
INTO FRIDAY NIGHT. ACTIVE PATTERN LATE WEEKEND INTO NEXT WEEK.
FRIDAY AND FRIDAY NIGHT...MAIN SHORT WAVE COMES OUT INTO THE MIDWEST
WITH SURFACE LOW RIDING ALONG THE BOUNDARY. THE TRACK OF THE RATHER
ORGANIZED SURFACE LOW ALONG THE BOUNDARY WILL BE CRITICAL TO WHERE
THE POTENTIAL FOR SUPERCELLS AND TORNADOES WILL BE. AS OF NOW OUR
SOUTHERN HALF OF CWA WOULD BE UNDER THE GUN AS THE GFS TAKES THE LOW
BY FRIDAY EVENING JUST EAST OF THE QUAD CITIES. TO THE NORTH OF THE
LOW WIDESPREAD RAINS EXPECTED OVER OUR NORTHERN CWA. WILL HAVE
LIKELY POPS FOR FRIDAY INTO FRIDAY NIGHT. DEEP LAYER SHEAR INCREASES
LATER FRIDAY AS STRENGTHENING MID LEVEL WINDS ARRIVE FROM THE WEST.
NEED TO WATCH FOR SURFACE WINDS BACKING NEAR THE WARM FRONT WHICH
WOULD INCREASE LOCALIZED HELICITY AND THE THREAT FOR TORNADOES.
TORRENTIAL RAINS ALSO WILL BE A CONCERN WITH STORMS AND A FLASH
FLOOD WATCH MAY BE NEEDED FOR PORTIONS OF THE CWA FOR FRIDAY INTO
FRIDAY NIGHT. FOR NOW WILL MENTION HEAVY RAIN WORDING IN THE
GRIDS/ZFP.
THIS WEEKEND...RATHER NICE ON SATURDAY AND SATURDAY NIGHT WITH
DRY AND PLEASANT WEATHER EXPECTED. HIGH PRESSURE WILL BE OVER THE
GREAT LAKES WITH THE BOUNDARY GETTING SHOVED JUST FAR ENOUGH TO OUR
WEST AND SOUTH TO KEEP ACTIVE WEATHER AWAY FROM OUR CWA...BUT ONLY
BRIEFLY. MAX TEMPS IN THE 70S AND MINS IN THE 50S.
SUNDAY THROUGH WEDNESDAY...HERE WE GO AGAIN. ACTIVE PATTERN RETURNS
WITH THE POTENTIAL FOR MORE HEAVY RAIN AND SEVERE WEATHER. AFTER ALL
IT IS JUNE AND THIS IS USUALLY THE PEAK OF THE SEVERE EVENTS.
ANOTHER IMPRESSIVE TROUGH WILL BE PUSHING INTO THE ROCKIES BY MONDAY
AND THEN SWINGING INTO THE MIDWEST BY WEDNESDAY. THE WAVY FRONTAL
BOUNDARY WILL SET UP SHOP ONCE AGAIN ACROSS THE REGION WITH PERIODS
OF THUNDERSTORMS EXPECTED. SHOULD BE A DECENT TEMPERATURE CONTRAST
WITH HOT WEATHER TO OUR SOUTH AND COOL WEATHER TO OUR NORTH. THUS
THE ACTIVE THUNDERSTORMS ALONG THIS THERMAL GRADIENT IN OUR CWA.
..HAASE..
&&
.AVIATION...
AREAS OF THUNDERSTORMS WITH HEAVY RAIN AND MVFR CIGS WILL CONTINUE
AT CID MLI...AND BRL THIS MORNING...THEY SHOULD BECOME ISOLATED FROM
16Z...TO 20Z TODAY...BEFORE ANOTHER ROUND OF WIDESPREAD
THUNDERSTORMS WITH HEAVY RAIN SPREADS OVER THE ENTIRE AREA. CIGS
TODAY WILL RANGE FROM 3000 FT TO 6000 FT...AS STORMS MOVE ACROSS THE
CWA THIS MORNING. TONIGHT...MVFR CIGS CAN BE EXPECTED WITH
WIDESPREAD HEAVY RAIN AND THUNDERSTORMS. VISIBILITIES TODAY AND
TONIGHT WILL GENERALLY BE AROUND 6SM...EXCEPT IN THUNDERSTORMS WHERE
THEY WILL BE RESTRICTED TO A MILE OR LESS AT TIMES. EAST TO
NORTHEAST WINDS WILL BLOW TODAY AND TONIGHT...AROUND 10 KTS.
..ERVIN..
&&
.DVN WATCHES/WARNINGS/ADVISORIES...
IA...FLASH FLOOD WATCH THROUGH FRIDAY MORNING FOR BENTON-CEDAR-
CLINTON-IOWA-JACKSON-JOHNSON-JONES-KEOKUK-LINN-LOUISA-
MUSCATINE-SCOTT-WASHINGTON.
IL...FLASH FLOOD WATCH THROUGH FRIDAY MORNING FOR CARROLL-HENRY IL-
MERCER-ROCK ISLAND-WHITESIDE.
MO...NONE.
&&
ERVIN/HAASEHazardous weather outlook, Jun 9, 3:42 AM CDT, 1 hour 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 342 AM CDT THU JUN 9 2011 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-100845- 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- 342 AM CDT THU JUN 9 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...TODAY AND TONIGHT A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR COUNTIES GENERALLY ALONG AND NORTH OF INTERSTATE 80...AND ALONG AND SOUTH OF HIGHWAY 64. THIS INCLUDES THE METRO AREAS OF THE CEDAR RAPIDS...IOWA CITY...CLINTON...MUSCATINE...AND THE QUAD CITIES. HEAVY RAIN LAST EVENING AND EARLY THIS MORNING IS FALLING OVER THE SAME LOCATIONS REPEATEDLY. THIS HAS CAUSED HEAVY RAIN AMOUNTS TO FALL...AND MORE STORMS ARE LIKELY TODAY AND TONIGHT IN THESE SAME LOCATIONS. FLASH FLOODING WILL BE POSSIBLE TODAY...AND WITH ANOTHER ROUND OF HEAVY RAIN TONIGHT...MORE WIDESPREAD FLASH FLOODING IS LIKELY. IN ADDITION...STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT...MAINLY ALONG AN SOUTH OF INTERSTATE 80. THE MAIN SEVERE WEATHER THREAT WILL BE LARGE HAIL AND GUSTY WINDS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THUNDERSTORMS WILL BE LIKELY FRIDAY INTO FRIDAY NIGHT AS LOW PRESSURE MOVES ACROSS EASTERN IOWA AND WESTERN ILLINOIS. THE STORM PREDICTION CENTER HAS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ALONG AND SOUTH OF A WHAT CHEER IOWA TO FREEPORT ILLINOIS LINE. THE MAIN THREATS WILL BE DAMAGING WINDS AND LARGE HAIL. A COUPLE OF TORNADOES ARE POSSIBLE ALONG A WARM FRONT FRIDAY AFTERNOON AND EVENING AS THE SURFACE LOW MOVES ACROSS THE AREA. TORRENTIAL RAINS PRODUCING FLASH FLOODING IS ALSO A THREAT. SUNDAY THROUGH WEDNESDAY...EPISODES OF THUNDERSTORMS WILL RIDE ALONG A MEANDERING FRONTAL BOUNDARY ACROSS THE OUTLOOK AREA. SEVERE WEATHER AND HEAVY RAINS ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY AND TONIGHT. ERVIN/HAASE
In the hours before
Local storm report, Jun 9, 4:23 AM CDT, 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
423 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0415 AM TSTM WND GST WASHINGTON 41.30N 91.69W
06/09/2011 E50 MPH WASHINGTON IA PUBLIC
0418 AM HAIL WEST BRANCH 41.67N 91.35W
06/09/2011 E0.25 INCH CEDAR IA PUBLIC
SMALL HAIL.
&&
14Local storm report, Jun 9, 4:24 AM CDT, 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
424 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0423 AM HAIL 5 ESE IOWA CITY 41.64N 91.45W
06/09/2011 M0.75 INCH JOHNSON IA TRAINED SPOTTER
ALONG WITH 40-50 MPH WINDS AND HEAVY RAIN. HAIL LASTED 5
MINUTES.
&&
HAASELocal storm report, Jun 9, 4:46 AM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
446 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0446 AM HAIL MOUNT PLEASANT 40.96N 91.55W
06/09/2011 M0.75 INCH HENRY IA TRAINED SPOTTER
&&
HAASELocal storm report, Jun 9, 4:57 AM CDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
457 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0455 AM TSTM WND GST 2 NE MUSCATINE 41.43N 91.05W
06/09/2011 E50 MPH MUSCATINE IA TRAINED SPOTTER
40 TO 50 MPH WINDS.
&&
HAASELocal storm report, Jun 9, 5:09 AM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
509 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0508 AM TSTM WND GST 2 N MUSCATINE 41.45N 91.07W
06/09/2011 M52 MPH MUSCATINE IA CO-OP OBSERVER
ALONG WITH PEA SIZE HAIL.
&&
HAASELocal storm report, Jun 9, 5:10 AM CDT, 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
510 AM CDT THU JUN 09 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0509 AM TSTM WND GST MUSCATINE 41.42N 91.07W
06/09/2011 M54 MPH MUSCATINE IA AWOS
&&
HAASEThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 9:06 PM CDT | Severe Thunderstorm Warning | DVN | Stephenson | 39 min |
| Jun 8, 9:32 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson | 43 min |
| Jun 9, 12:39 AM CDT | Special Weather Statement | DVN | Rock Island | 51 min |
| Jun 9, 2:20 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Whiteside | 25 min |
| Jun 9, 2:56 AM CDT | Special Weather Statement | DVN | Whiteside | 49 min |
| Jun 9, 3:12 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 28 hr |
| Jun 9, 5:43 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Henry, Putnam, Whiteside | 62 min |
| Jun 9, 6:40 AM CDT | Flash Flood Warning | DVN | Whiteside | 6 hr |
| 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 8, 10:23 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Muscatine, Scott | 50 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 |
Nearby
Severe Thunderstorm Warnings in Illinois, 2011Severe Thunderstorm Warnings in Iowa, 2011Every 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.