Alert archive / Iowa / Tornado Warnings in 2007
Tornado Warning 1, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this tornado warning at Mar 30, 2007, 5:46 PM CDT for Cherokee County, Iowa. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2007, 5:46 PM CDT (22:46 UTC)
- Expired
- Mar 30, 2007, 6:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
County Cherokee County, IA
The radar
The Sioux Falls radar (KFSD), 125 km from the middle of the area, began a volume at 22:49 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.8 hours before the alert went out and 170 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
- 28 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 498 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KFSD 302247 TORFSD IAC035-302330- /O.NEW.KFSD.TO.W.0001.070330T2246Z-070330T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 546 PM CDT FRI MAR 30 2007 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * TORNADO WARNING FOR... CHEROKEE COUNTY IN NORTHWEST IOWA * UNTIL 630 PM CDT * AT 546 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM PRODUCING A BRIEF TORNADO FROM NEAR MARCUS TO 8 MILES WEST OF QUIMBY. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MARCUS... CLEGHORN... CHEROKEE...LARRABEE AND AURELIA IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY. LAT...LON 4286 9586 4257 9586 4261 9541 4291 9541 $$ 08
2 follow-up statements
000 WWUS53 KFSD 302258 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 557 PM CDT FRI MAR 30 2007 IAC035-302330- /O.CON.KFSD.TO.W.0001.000000T0000Z-070330T2330Z/ CHEROKEE IA- 557 PM CDT FRI MAR 30 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CHEROKEE COUNTY... AT 557 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM PRODUCING A BRIEF TORNADO. THESE TORNADO PRODUCING STORMS WERE LOCATED ALONG A LINE EXTENDING FROM MARCUS TO 8 MILES WEST OF QUIMBY...OR ALONG A LINE EXTENDING FROM 17 MILES EAST OF LE MARS TO 23 MILES SOUTHEAST OF LE MARS...MOVING NORTHEAST AT 10 MPH. MULTIPLE FUNNELS HAVE BEEN REPORTED ACROSS WESTERN PORTIONS OF CHEROKEE COUNTY. IT IS VERY LIKELY THAT THESE FUNNELS HAVE OR WILL BRIEFLY TOUCH THE GROUND. IF YOU ARE IN THE PATH OF THIS STORM...TAKE COVER IMMEDIATELY. LAT...LON 4286 9586 4257 9586 4261 9541 4291 9541 $$ 08
000 WWUS53 KFSD 302330 SVSFSD SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 630 PM CDT FRI MAR 30 2007 IAC035-302340- /O.CAN.KFSD.TO.W.0001.000000T0000Z-070330T2330Z/ CHEROKEE IA- 630 PM CDT FRI MAR 30 2007 ...THE TORNADO WARNING FOR CHEROKEE COUNTY IS CANCELLED... LAT...LON 4286 9586 4257 9586 4261 9541 4291 9541 $$ 08
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.