Alert archive / Iowa / Tornado Warnings in 2007
Tornado Warning 45, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Aug 28, 2007, 7:25 PM CDT for Boone County, Greene County, Iowa. It was in force for 40 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
- Aug 28, 2007, 7:25 PM CDT (00:25 UTC)
- Expired
- Aug 28, 2007, 8:05 PM CDT
- In force
- 40 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
Counties Boone County, IA, Greene County, IA
The radar
The Des Moines radar (KDMX), 34 km from the middle of the area, began a volume at 00:25 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 |
|---|---|---|---|
| Aug 28, 7:29 PM CDT | TORNADO | 5 Sw Rippey, IA | MINOR ROOF DAMAGE AND SOME WINDOWS BLOWN OUT |
| Aug 28, 7:34 PM CDT | TORNADO | 2 S Rippey, IA | TWO BRIEF TOUCHDOWNS. NO STRUCTURES DAMAGED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 28, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.4 hours before the alert went out and 293 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
- 1395 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1610 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDMX 290027 TORDMX IAC015-073-290115- /O.NEW.KDMX.TO.W.0045.070829T0025Z-070829T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 725 PM CDT TUE AUG 28 2007 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN BOONE COUNTY IN CENTRAL IOWA... SOUTHEASTERN GREENE COUNTY IN WEST CENTRAL IOWA... * UNTIL 815 PM CDT. * AT 721 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A TORNADO 6 MILES SOUTH OF JEFFERSON...OR ABOUT 41 MILES SOUTH OF FORT DODGE...MOVING EAST AT 45 MPH. * THE TORNADO WILL BE NEAR... MADRID BY 800 PM CDT...RIPPEY AT 730 PM CDT THIS WARNING EXTENDS THE PREVIOUS TORNADO FOR SOUTHERN GREEN COUNTY. SPOTTER HAVE REPORTED A TORNADO 5 MILES SOUTHEAST OF JEFFERSON THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A CAR...SEEK SHELTER IN A REINFORCED BUILDING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR NORTHWESTERN IOWA. LAT...LON 4201 9371 4186 9371 4186 9445 4202 9445 TIME...MOT...LOC 0025Z 271DEG 41KT 4193 9432 $$ JUNGBLUTH
2 follow-up statements
000 WWUS53 KDMX 290049 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 748 PM CDT TUE AUG 28 2007 IAC073-290058- /O.CAN.KDMX.TO.W.0045.000000T0000Z-070829T0115Z/ GREENE IA- 748 PM CDT TUE AUG 28 2007 ...THE TORNADO WARNING FOR SOUTHEASTERN GREENE COUNTY IS CANCELLED... AT 746 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED. A TORNADO WAS REPORTED EARLIER 2 MILES SOUTH OF JEFFERSON AT 721 PM CDT BY GREENE COUNTY LAW ENFORCEMENT. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR NORTHWESTERN IOWA. LAT...LON 4201 9371 4186 9371 4186 9417 4202 9417 TIME...MOT...LOC 0048Z 270DEG 51KT 4194 9390 $$ IAC015-290115- /O.CON.KDMX.TO.W.0045.000000T0000Z-070829T0115Z/ BOONE IA- 748 PM CDT TUE AUG 28 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR SOUTHERN BOONE COUNTY... AT 746 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 6 MILES WEST OF LUTHER...OR ABOUT 30 MILES NORTHWEST OF DES MOINES...MOVING EAST AT 55 MPH. THE TORNADO WILL BE NEAR... RURAL SOUTHEASTERN BOONE COUNTY AT 800 PM CDT SEEK SHELTER IN A BASEMENT...OR IN AN INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE IN A CAR OR OUTSIDE...SEEK SHELTER IN A REINFORCED BUILDING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR NORTHWESTERN IOWA. LAT...LON 4201 9371 4186 9371 4186 9417 4202 9417 TIME...MOT...LOC 0048Z 270DEG 51KT 4194 9390 $$ JUNGBLUTH
000 WWUS53 KDMX 290105 SVSDMX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 805 PM CDT TUE AUG 28 2007 IAC015-290115- /O.CAN.KDMX.TO.W.0045.000000T0000Z-070829T0115Z/ BOONE IA- 805 PM CDT TUE AUG 28 2007 ...THE TORNADO WARNING FOR SOUTHERN BOONE COUNTY IS CANCELLED... AT 803 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED. REPORT TORNADOES...WIND IN EXCESS OF 50 MPH...HAIL LARGER THAN ONE HALF INCH...OR STORM DAMAGE BY CALLING LOCAL LAW ENFORCEMENT AND ASKING THEM TO RELAY THE REPORT TO THE NATIONAL WEATHER SERVICE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT TUESDAY EVENING FOR NORTHWESTERN IOWA. LAT...LON 4201 9371 4186 9371 4186 9417 4202 9417 TIME...MOT...LOC 0105Z 257DEG 30KT 4197 9370 $$ JUNGBLUTH
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 55 min |
| Aug 28, 7:56 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Story | 49 min |
| Aug 28, 8:35 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 43 min |
Nearby
Tornado Warnings in Iowa, 2007Every tornado warning in 2007Tornadoes in 2007
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.