Alert archive / Iowa / Tornado Warnings in 2010
Tornado Warning 13, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 21, 2010, 4:26 PM CDT for 4 counties in Iowa. It was in force for 49 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 21, 2010, 4:26 PM CDT (21:26 UTC)
- Expired
- Jun 21, 2010, 5:15 PM CDT
- In force
- 49 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
Counties Des Moines County, IA, Henry County, IA, Lee County, IA, Van Buren County, IA
The radar
The Quad Cities radar (KDVN), 115 km from the middle of the area, began a volume at 21:28 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 21, 5:11 PM CDT | HAIL 1 | Denmark, IA | |
| Jun 21, 5:17 PM CDT | HAIL 1 | 10 N Fort Madison, IA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.4 hours before the alert went out and 121 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
- 1443 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 800 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
504 WFUS53 KDVN 212126 TORDVN IAC057-087-111-177-212215- /O.NEW.KDVN.TO.W.0013.100621T2126Z-100621T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 426 PM CDT MON JUN 21 2010 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL DES MOINES COUNTY IN SOUTHEAST IOWA... SOUTHERN HENRY COUNTY IN SOUTHEAST IOWA... NORTHERN LEE COUNTY IN SOUTHEAST IOWA... EAST CENTRAL VAN BUREN COUNTY IN SOUTHEAST IOWA... * UNTIL 515 PM CDT. * AT 424 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR BONAPARTE...OR 9 MILES EAST OF KEOSAUQUA...MOVING EAST AT 30 MPH. * THE TORNADO WILL BE NEAR... PRIMROSE AND HILLSBORO AROUND 435 PM CDT... MT HAMILL AROUND 440 PM CDT... HOUGHTON AROUND 445 PM CDT... PILOT GROVE AROUND 450 PM CDT... ST. PAUL AROUND 455 PM CDT... LOWELL AROUND 505 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4101 9130 4078 9117 4062 9184 4079 9193 TIME...MOT...LOC 2126Z 249DEG 25KT 4073 9177 $$ HAASE
3 follow-up statements
947 WWUS53 KDVN 212145 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 445 PM CDT MON JUN 21 2010 IAC057-087-111-177-212215- /O.CON.KDVN.TO.W.0013.000000T0000Z-100621T2215Z/ LEE IA-VAN BUREN IA-DES MOINES IA-HENRY IA- 445 PM CDT MON JUN 21 2010 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR SOUTHERN HENRY...SOUTHWESTERN DES MOINES...EAST CENTRAL VAN BUREN AND NORTHERN LEE COUNTIES... AT 441 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED APPROXIMATELY NEAR MT HAMILL...OR 14 MILES EAST OF KEOSAUQUA...MOVING EAST AT 30 MPH. THE TORNADO WILL BE NEAR... MT HAMILL AND HOUGHTON AROUND 450 PM CDT... SALEM AROUND 455 PM CDT... PILOT GROVE AND ST. PAUL AROUND 500 PM CDT... WEST POINT AROUND 505 PM CDT... GEODE STATE PARK...LOWELL...DANVILLE AND DENMARK AROUND 515 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. && LAT...LON 4101 9130 4078 9117 4062 9184 4079 9193 TIME...MOT...LOC 2145Z 249DEG 25KT 4074 9166 $$ HAASE
376 WWUS53 KDVN 212154 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 454 PM CDT MON JUN 21 2010 IAC177-212204- /O.CAN.KDVN.TO.W.0013.000000T0000Z-100621T2215Z/ VAN BUREN IA- 454 PM CDT MON JUN 21 2010 ...THE TORNADO WARNING FOR EAST CENTRAL VAN BUREN COUNTY IS CANCELLED... THE THUNDERSTORM THAT HAD A HISTORY OF PRODUCING A TORNADO HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. LAT...LON 4093 9128 4080 9119 4068 9165 4080 9171 TIME...MOT...LOC 2154Z 249DEG 25KT 4076 9158 $$ IAC057-087-111-212215- /O.CON.KDVN.TO.W.0013.000000T0000Z-100621T2215Z/ LEE IA-DES MOINES IA-HENRY IA- 454 PM CDT MON JUN 21 2010 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR SOUTHEASTERN HENRY...WEST CENTRAL DES MOINES AND NORTHWESTERN LEE COUNTIES... AT 449 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED APPROXIMATELY NEAR MT HAMILL...OR 15 MILES SOUTH OF MOUNT PLEASANT...MOVING EAST AT 30 MPH. THE TORNADO WILL BE NEAR... PILOT GROVE AND ST. PAUL AROUND 500 PM CDT... GEODE STATE PARK...LOWELL...DANVILLE AND 7 MILES WEST OF MIDDLETOWN AROUND 515 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. && LAT...LON 4093 9128 4080 9119 4068 9165 4080 9171 TIME...MOT...LOC 2154Z 249DEG 25KT 4076 9158 $$ HAASE
926 WWUS53 KDVN 212212 SVSDVN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 512 PM CDT MON JUN 21 2010 IAC057-087-111-212222- /O.EXP.KDVN.TO.W.0013.000000T0000Z-100621T2215Z/ LEE IA-DES MOINES IA-HENRY IA- 512 PM CDT MON JUN 21 2010 ...THE TORNADO WARNING FOR SOUTHEASTERN HENRY...WEST CENTRAL DES MOINES AND NORTHWESTERN LEE COUNTIES WILL EXPIRE AT 515 PM CDT... THE SEVERE THUNDERSTORM THAT HAD EARLIER PRODUCED A TORNADO NEAR BONAPARTE HAS MOVED OUT OF THE WARNED AREA. THEREFORE THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING FOR SOUTHEASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. LAT...LON 4093 9128 4080 9119 4068 9165 4080 9171 TIME...MOT...LOC 2212Z 249DEG 25KT 4080 9143 $$ HAASE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 2:46 AM CDT | Flash Flood Warning | DVN | Lee | 6 hr |
| Jun 21, 3:25 AM CDT | Flash Flood Warning | DVN | Van Buren | 6 hr |
| Jun 21, 4:10 PM CDT | Special Weather Statement | DVN | Des Moines, Van Buren | 65 min |
| Jun 21, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 63 min |
| Jun 21, 4:36 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 54 min |
| Jun 21, 5:01 PM CDT | Tornado Warning | DVN | Des Moines, Lee | 44 min |
| Jun 21, 5:23 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Lee, Van Buren | 4 hr |
| Jun 21, 5:36 PM CDT | Tornado Warning | DVN | Lee | 39 min |
| Jun 21, 6:58 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 62 min |
Nearby
Tornado Warnings in Iowa, 2010Every tornado warning in 2010Tornadoes in 2010
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.