Alert archive / Illinois / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 8, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 11, 2006, 4:59 PM CST for McDonough County, Illinois. It was in force for 38 min. 1 report 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
- Mar 11, 2006, 4:59 PM CST (22:59 UTC)
- Expired
- Mar 11, 2006, 5:37 PM CST
- In force
- 38 min
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
County McDonough County, IL
The radar
The Lincoln radar (KILX), 123 km from the middle of the area, began a volume at 23:03 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 |
|---|---|---|---|
| Mar 11, 5:14 PM CST | HAIL 0.25 | Macomb, IL | SOME STREET FLOODING |
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 |
|---|---|---|---|
| Mar 11, 2:22 PM CST | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.0 hours before the alert went out and 130 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
- 1578 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 436 m²/s²
- 0-3 km storm-relative helicity
- 432 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KDVN 112259 SVRDVN ILC109-120000- /O.NEW.KDVN.SV.W.0008.060311T2259Z-060312T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 459 PM CST SAT MAR 11 2006 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MCDONOUGH COUNTY IN WEST CENTRAL ILLINOIS THIS INCLUDES THE CITY OF MACOMB * UNTIL 600 PM CST * AT 455 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR FANDON...OR ABOUT 6 MILES SOUTHWEST OF MACOMB...AND MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MACOMB BY 505 PM CST GOOD HOPE...BARDOLPH AND 6 MILES SOUTHEAST OF SCIOTA BY 515 PM CST 9 MILES NORTHWEST OF NEW PHILADELPHIA BY 520 PM CST BUSHNELL BY 525 PM CST PRAIRIE CITY AND PRAIRIE CITY AIRPORT BY 535 PM CST THIS IS A DANGEROUS STORM. MOVE IMMEDIATELY INDOORS AND STAY AWAY FROM WINDOWS. LAT...LON 4036 9091 4032 9046 4063 9046 4063 9088 $$ MAYES
2 follow-up statements
000 WWUS53 KDVN 112312 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 511 PM CST SAT MAR 11 2006 ILC109-120000- /O.CON.KDVN.SV.W.0008.000000T0000Z-060312T0000Z/ MCDONOUGH IL- 511 PM CST SAT MAR 11 2006 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTHERN MCDONOUGH COUNTY... AT 504 PM CST...TRAINED SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING PENNY SIZE HAIL. THIS STORM WAS LOCATED NEAR MACOMB...OR ABOUT OVER MACOMB...MOVING NORTHEAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BARDOLPH AND 6 MILES SOUTHEAST OF GOOD HOPE BY 520 PM CST SCOTTSBURG BY 525 PM CST BUSHNELL AND 5 MILES NORTHWEST OF NEW PHILADELPHIA BY 530 PM CST 5 MILES SOUTHEAST OF WALNUT GROVE BY 535 PM CST PRAIRIE CITY AIRPORT AND PRAIRIE CITY BY 540 PM CST A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST SATURDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. LAT...LON 4038 9085 4042 9046 4063 9046 4063 9083 $$ MAYES
000 WWUS53 KDVN 112337 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 535 PM CST SAT MAR 11 2006 ILC109-112345- /O.CAN.KDVN.SV.W.0008.000000T0000Z-060312T0000Z/ MCDONOUGH IL- 535 PM CST SAT MAR 11 2006 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MCDONOUGH COUNTY IS CANCELLED... THE THUNDERSTORM THAT WAS CAPABLE OF PRODUCING SEVERE WEATHER HAS WEAKENED. THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CST SATURDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. LAT...LON 4038 9085 4042 9046 4063 9046 4063 9083 $$ MAYES
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 Mar 11, 3:31 PM CST, 1 hour 28 minutes earlier.
Area forecast discussion, Mar 11, 3:31 PM CST, 1 hour 28 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 330 PM CST SAT MAR 10
Hazardous weather outlook, Mar 11, 12:16 PM CST, 4 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1216 PM CST SAT MAR 11 2006 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-121730- 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- 1216 PM CST SAT MAR 11 2006 ...SLIGHT RISK OF SEVERE WEATHER TODAY... 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 FLOW FROM THE GULF OF MEXICO HAS ALLOWED WARM AND MOIST AIR TO WORK ITS WAY TOWARD THE MID-MISSISSIPPI RIVER VALLEY THIS MORNING. THE WARM AND MOIST AIR SHOULD AID INSTABILITY THIS AFTERNOON... ALLOWING THUNDERSTORMS TO DEVELOP IN THE AREA. THE PRIMARY THREAT FOR SEVERE WEATHER EXISTS SOUTH OF HIGHWAY 92 IN IOWA... IN ALL OF NORTHEASTERN MISSOURI... AND ALONG AND EAST OF THE MISSISSIPPI RIVER. ENOUGH WIND SHEAR IS PRESENT TO ALLOW DEVELOPMENT OF SUPERCELL THUNDERSTORMS THAT WILL EVOLVE INTO A LINE OF STORMS LATER IN THE EVENING. THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE LARGE HAIL... ALTHOUGH DAMAGING WIND GUSTS ARE POSSIBLE AS THE STORMS EVOLVE INTO A LINE IN THE EVENING. AN ISOLATED TORNADO CANNOT BE RULED OUT... ALTHOUGH THE GREATER THREAT FOR TORNADOES EXISTS IN EAST CENTRAL MISSOURI INTO SOUTHERN ILLINOIS. BRIEF HEAVY RAINS MAY ALSO ACCOMPANY THUNDERSTORMS TODAY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY ON SUNDAY... A MODERATE RISK OF SEVERE WEATHER EXISTS FOR THE AREA SOUTH OF HIGHWAY 34 AND A SLIGHT RISK FOR SEVERE WEATHER EXISTS FOR THE REST OF THE AREA. A STORM SYSTEM MOVING THROUGH THE AREA ON SUNDAY AFTERNOON WILL AGAIN ALLOW SUPERCELL STORMS TO DEVELOP IN THE AREA. WITH MORE MOISTURE TOMORROW THAN TODAY AS WELL AS STRONGER WIND SHEAR... THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL... DAMAGING WINDS... AND ISOLATED TORNADOES. PLEASE STAY TUNED TO KEEP ABREAST OF FORECAST UPDATES AS THIS SCENARIO EVOLVES. ON WEDNESDAY AND THURSDAY... A DISTURBANCE FROM THE PACIFIC WILL BRING RAIN AND SNOW TO THE AREA. IT IS TOO EARLY TO ASSESS THE POTENTIAL FOR RAIN AND SNOW AMOUNTS WITH THIS SYSTEM. THE LOCALLY HEAVY RAINS POSSIBLE WITH STORMS THIS WEEK MAY CAUSE LOCAL RIVERS TO EXPERIENCE MODERATE RISES. CURRENT RIVER LEVELS ARE RUNNING NEAR TO BELOW NORMAL DUE TO THE ONGOING DROUGHT ACROSS THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS LIKELY THIS AFTERNOON AND EVENING AS WELL AS TOMORROW. PLEASE REPORT ANY SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN THE QUAD CITIES. MAYES
In the hours before
Local storm report, Mar 11, 4:09 PM CST, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
409 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0357 PM HAIL MACOMB 40.47N 90.68W
03/11/2006 E0.88 INCH MCDONOUGH IL TRAINED SPOTTER
&&
MIKEZLocal storm report, Mar 11, 4:10 PM CST, 49 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
410 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0407 PM HAIL MACOMB 40.47N 90.68W
03/11/2006 E0.88 INCH MCDONOUGH IL TRAINED SPOTTER
&&
MIKEZLocal storm report, Mar 11, 4:12 PM CST, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
412 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0405 PM HAIL 4 W MACOMB 40.48N 90.75W
03/11/2006 E1.00 INCH MCDONOUGH IL TRAINED SPOTTER
&&
DANFLocal storm report, Mar 11, 4:24 PM CST, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
424 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0413 PM HAIL 1 NW MACOMB 40.48N 90.69W
03/11/2006 E0.75 INCH MCDONOUGH IL TRAINED SPOTTER
3/4 INCH HAIL COMPLETELY COVERING THE GROUND
&&
DANFLocal storm report, Mar 11, 4:32 PM CST, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
432 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0427 PM HAIL 3 S ROSEVILLE 40.69N 90.66W
03/11/2006 E0.75 INCH WARREN IL TRAINED SPOTTER
0427 PM HAIL ROSEVILLE 40.73N 90.66W
03/11/2006 E0.50 INCH WARREN IL TRAINED SPOTTER
&&
DANFLocal storm report, Mar 11, 4:35 PM CST, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
435 PM CST SAT MAR 11 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0425 PM HAIL SWAN CREEK 40.67N 90.65W
03/11/2006 E0.75 INCH WARREN IL PUBLIC
&&
MIKEMThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 3:36 PM CST | Severe Thunderstorm Warning | DVN | Hancock, McDonough | 54 min |
| Mar 11, 4:10 PM CST | Severe Thunderstorm Warning | DVN | Warren | 65 min |
| Mar 11, 5:07 PM CST | Severe Thunderstorm Warning | DVN | Henry | 53 min |
| Mar 11, 5:34 PM CST | Severe Thunderstorm Warning | DVN | Warren | 15 min |
| Mar 11, 5:47 PM CST | Severe Thunderstorm Warning | DVN | Whiteside | 39 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2006Every severe thunderstorm warning in 2006
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.