Alert archive / Kansas / Tornado Watches in 2002
Tornado Watch 282
The Storm Prediction Center issued this tornado watch at May 11, 2002, 2:30 PM CDT for 35 counties in Kansas; 8 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 11, 2002, 2:30 PM CDT (19:30 UTC)
- Expired
- May 11, 2002, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 43 counties
Barber County, KS, Barton County, KS, Clark County, KS, Clay County, KS, Cloud County, KS, Comanche County, KS, Dickinson County, KS, Edwards County, KS, Ellsworth County, KS, Geary County, KS, Harper County, KS, Harvey County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Washington County, KS, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nemaha County, NE, Nuckolls County, NE, Pawnee County, NE, Richardson County, NE, Thayer County, NE
The radar
The Wichita radar (KICT), 110 km from the middle of the area, began a volume at 19:33 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.
Warnings issued inside it
42 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 3:00 PM CDT | Severe Thunderstorm Warning | ICT | Lincoln | 60 min |
| May 11, 3:17 PM CDT | Severe Thunderstorm Warning | GID | Mitchell | 58 min |
| May 11, 3:35 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson | 55 min |
| May 11, 3:55 PM CDT | Severe Thunderstorm Warning | ICT | Lincoln | 65 min |
| May 11, 3:56 PM CDT | Severe Thunderstorm Warning | ICT | Barton | 64 min |
| May 11, 4:01 PM CDT | Tornado Warning | OAX | Jefferson | 29 min |
| May 11, 4:04 PM CDT | Tornado Warning | ICT | Barton | 41 min |
| May 11, 4:13 PM CDT | Severe Thunderstorm Warning | OAX | Gage | 62 min |
| May 11, 4:15 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Pawnee | 45 min |
| May 11, 4:24 PM CDT | Tornado Warning | DDC | Edwards, Pawnee | 36 min |
| May 11, 4:24 PM CDT | Severe Thunderstorm Warning | ICT | Ellsworth | 66 min |
| May 11, 4:27 PM CDT | Tornado Warning | ICT | Lincoln | 33 min |
| May 11, 4:29 PM CDT | Tornado Warning | ICT | Ellsworth | 46 min |
| May 11, 4:36 PM CDT | Tornado Warning | ICT | Rice | 39 min |
| May 11, 4:52 PM CDT | Tornado Warning | ICT | Saline | 38 min |
| May 11, 5:01 PM CDT | Tornado Warning | DDC | Edwards, Pawnee | 29 min |
| May 11, 5:09 PM CDT | Severe Thunderstorm Warning | DDC | Stafford | 51 min |
| May 11, 5:13 PM CDT | Severe Thunderstorm Warning | DDC | Edwards | 47 min |
| May 11, 5:15 PM CDT | Severe Thunderstorm Warning | ICT | Ellsworth | 60 min |
| May 11, 5:21 PM CDT | Severe Thunderstorm Warning | OAX | Pawnee | 24 min |
| May 11, 5:29 PM CDT | Severe Thunderstorm Warning | DDC | Kiowa | 46 min |
| May 11, 5:50 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Meade | 55 min |
| May 11, 5:57 PM CDT | Severe Thunderstorm Warning | DDC | Pratt, Stafford | 63 min |
| May 11, 6:00 PM CDT | Severe Thunderstorm Warning | DDC | Stafford | 30 min |
| May 11, 6:05 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Meade | 40 min |
| May 11, 6:06 PM CDT | Tornado Warning | DDC | Stafford | 24 min |
| May 11, 6:13 PM CDT | Tornado Warning | DDC | Pratt | 32 min |
| May 11, 6:24 PM CDT | Severe Thunderstorm Warning | ICT | Reno | 66 min |
| May 11, 6:26 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 64 min |
| May 11, 6:38 PM CDT | Severe Thunderstorm Warning | DDC | Stafford | 37 min |
| May 11, 6:41 PM CDT | Severe Thunderstorm Warning | DDC | Stafford | 34 min |
| May 11, 6:41 PM CDT | Severe Thunderstorm Warning | DDC | Clark, Ford, Meade, Seward | 64 min |
| May 11, 6:47 PM CDT | Tornado Warning | DDC | Pratt | 28 min |
| May 11, 6:47 PM CDT | Severe Thunderstorm Warning | ICT | Rice | 58 min |
| May 11, 6:49 PM CDT | Severe Thunderstorm Warning | ICT | McPherson | 56 min |
| May 11, 6:55 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Kiowa | 65 min |
| May 11, 7:00 PM CDT | Tornado Warning | ICT | Kingman | 45 min |
| May 11, 7:24 PM CDT | Severe Thunderstorm Warning | DDC | Comanche | 51 min |
| May 11, 7:43 PM CDT | Tornado Warning | ICT | Kingman | 47 min |
| May 11, 7:44 PM CDT | Severe Thunderstorm Warning | ICT | Reno | 61 min |
| May 11, 7:52 PM CDT | Severe Thunderstorm Warning | DDC | Clark | 53 min |
| May 11, 7:58 PM CDT | Severe Thunderstorm Warning | DDC | Barber, Pratt | 47 min |
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 7.5 hours before the alert went out and 163 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
- 1296 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 494 m²/s²
- 0-3 km storm-relative helicity
- 564 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 111907 SEL2 SPC WW 111903 KSZ000-NEZ000-120100- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 282 STORM PREDICTION CENTER NORMAN OK 203 PM CDT SAT MAY 11 2002 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND NORTHEAST KANSAS SOUTHEAST NEBRASKA EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 800 PM CDT. TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTHWEST OF MEDICINE LODGE KANSAS TO 15 MILES NORTH NORTHEAST OF BEATRICE NEBRASKA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...AIR MASS AHEAD OF COLD FRONT FROM SCENTRAL NEB/KS BORDER SWWD HAS BECOME VERY UNSTABLE WITH CAPES ABOVE 3000 J/KG. WITH CAP WEAKENING...CONVERGENCE ALONG FRONT EXPECTED TO RAPIDLY INITIATE SEVERE STORMS WITH DEEP LAYER SHEAR FAVORABLE FOR SUPERCELLS. SUPERCELLS WILL ENHANCE THREAT FOR ISOLATED TORNADOES AND LARGE HAIL. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24030. ...HALES 402,0952 370,0974 370,1000 402,0975 WWUS20 KWNS 111907 SEL2 SPC WW 111903 KSZ000-NEZ000-120100- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 282 STORM PREDICTION CENTER NORMAN OK 203 PM CDT SAT MAY 11 2002 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND NORTHEAST KANSAS SOUTHEAST NEBRASKA EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 800 PM CDT. TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTHWEST OF MEDICINE LODGE KANSAS TO 15 MILES NORTH NORTHEAST OF BEATRICE NEBRASKA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...AIR MASS AHEAD OF COLD FRONT FROM SCENTRAL NEB/KS BORDER SWWD HAS BECOME VERY UNSTABLE WITH CAPES ABOVE 3000 J/KG. WITH CAP WEAKENING...CONVERGENCE ALONG FRONT EXPECTED TO RAPIDLY INITIATE SEVERE STORMS WITH DEEP LAYER SHEAR FAVORABLE FOR SUPERCELLS. SUPERCELLS WILL ENHANCE THREAT FOR ISOLATED TORNADOES AND LARGE HAIL. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24030. ...HALES 402,0952 370,0974 370,1000 402,0975
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Barber, Clark, Comanche, Edwards, Ford, Gray and 11 more | 5 hr |
Nearby
Tornado Watches in Kansas, 2002Tornado Watches in Nebraska, 2002Every tornado watch in 2002
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.