Alert archive / Kansas / Tornado Warnings in 1999
Tornado Warning 13, NWS Topeka, KS
NWS Topeka, KS issued this tornado warning at May 4, 1999, 7:30 PM CDT for Jackson County, Nemaha County, Pottawatomie County, Kansas. It was in force for 40 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 4, 1999, 7:30 PM CDT (00:30 UTC)
- Expired
- May 4, 1999, 8:10 PM CDT
- In force
- 40 min
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
Counties Jackson County, KS, Nemaha County, KS, Pottawatomie County, KS
The radar
The Topeka radar (KTWX), 61 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| May 4, 7:37 PM CDT | Tornado F0 | Soldier, KS | The final touchdown occurred over open country southwest of Soldier. |
| May 4, 7:57 PM CDT | Hail 0.75 | Bancroft, KS |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 0.5 hours before the alert went out and 68 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
- 489 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
999 WFUS1 KTOP 050031 RRA TORTOP KSC085-131-149-050115- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TOPEKA KS 730 PM CDT TUE MAY 4 1999 THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN JACKSON COUNTY IN NORTHEAST KANSAS SOUTHEASTERN NEMAHA COUNTY IN NORTHEAST KANSAS NORTHEASTERN POTTAWATOMIE COUNTY IN NORTHEAST KANSAS * UNTIL 810 PM CDT * AT 728 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO 7 MILES SOUTH OF HAVENSVILLE...OR ABOUT 31 MILES NORTHEAST OF MANHATTAN...MOVING NORTHEAST AT 30 MPH. ANOTHER POSSIBLY TORNADIC THUNDERSTORM WAS LOCATED ABOUT 8 MILES WEST OF EMMETT FOLLOWING THE PATH OF THE PREVIOUS ONE. * SOME LOCATIONS AFFECTED... HAVENSVILLE GOFF WETMORE SOLDIER CIRCLEVILLE THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER INFORMATION.
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 8:08 PM CDT | Tornado Warning | TOP | Brown, Jackson, Nemaha | 42 min |
| May 4, 8:46 PM CDT | Severe Thunderstorm Warning | TOP | Brown | 34 min |
Nearby
Tornado Warnings in Kansas, 1999Every tornado warning in 1999Tornadoes in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.