Alert archive / Nebraska / Tornado Watches in 2003
Tornado Watch 571
The Storm Prediction Center issued this tornado watch at Jun 23, 2003, 8:20 PM CDT for Norton County, Phillips County, Smith County, Kansas; 17 counties in Nebraska. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 23, 2003, 8:20 PM CDT (01:20 UTC)
- Expired
- Jun 23, 2003, 11:00 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
Counties Norton County, KS, Phillips County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Thayer County, NE, Webster County, NE, York County, NE
The radar
The Grand Island radar (KUEX), 41 km from the middle of the area, began a volume at 01:20 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:28 PM CDT | Severe Thunderstorm Warning | GID | Furnas | 62 min |
| Jun 23, 9:10 PM CDT | Severe Thunderstorm Warning | GID | Gosper | 65 min |
| Jun 23, 9:26 PM CDT | Severe Thunderstorm Warning | GID | Hamilton, Polk | 64 min |
| Jun 23, 9:27 PM CDT | Severe Thunderstorm Warning | GID | Furnas | 78 min |
| Jun 23, 9:31 PM CDT | Severe Thunderstorm Warning | GLD | Norton | 59 min |
| Jun 23, 9:54 PM CDT | Severe Thunderstorm Warning | GID | Buffalo | 66 min |
| Jun 23, 10:16 PM CDT | Severe Thunderstorm Warning | GID | Gosper | 29 min |
| Jun 23, 10:31 PM CDT | Severe Thunderstorm Warning | GID | Phelps | 44 min |
| Jun 23, 10:37 PM CDT | Severe Thunderstorm Warning | GID | Buffalo | 23 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.3 hours before the alert went out and 164 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
- 4886 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1084 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 7.9
- Supercell composite
- 32.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 240118
SEL1
SPC WW 240120
KSZ000-NEZ000-240400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 571
NWS STORM PREDICTION CENTER NORMAN OK
820 PM CDT MON JUN 23 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTH CENTRAL KANSAS
SOUTH CENTRAL NEBRASKA
EFFECTIVE THIS MONDAY EVENING FROM 820 PM UNTIL 1100 PM CDT.
TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 45 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 70 MILES SOUTHWEST OF KEARNEY NEBRASKA TO 55
MILES EAST SOUTHEAST OF GRAND ISLAND 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.
OTHER WATCH INFORMATION...CONTINUE...WW 567...WW 568...WW 569...WW
570...
DISCUSSION...EXPLOSIVE SEVERE THUNDERSTORM DEVELOPMENT NOW OCCURRING
OVER NWRN KS WILL TRACK ENEWD JUST SOUTH OF TORNADO WATCH 568 THIS
EVENING. THERMODYNAMIC AND KINEMATIC PROFILES SUGGEST LONG-LIVED
SUPERCELLS WITH ATTENDANT THREATS OF TORNADOES AND VERY LARGE HAIL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 24020.
...EVANS
403,0995 411,0972 400,0972 392,0995SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:17 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Phillips, Republic, Smith | 58 min |
| Jun 24, 11:43 AM CDT | Mesoscale Discussion | SPC | Brown, Doniphan | 2 hr |
| Jun 24, 3:47 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Rawlins, Sheridan, Sherman, Thomas | 88 min |
| Jun 24, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Gove, Graham, Logan, Norton and 5 more | 6 hr |
| Jun 24, 3:56 PM CDT | Mesoscale Discussion | SPC | Brown, Doniphan | 64 min |
| Jun 24, 5:48 PM CDT | Mesoscale Discussion | SPC | Finney, Grant, Gray, Hamilton, Haskell, Kearny and 8 more | 117 min |
| Jun 24, 6:30 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Gove, Graham, Logan, Norton and 6 more | 2 hr |
| Jun 23, 8:34 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Deuel, Kimball | 86 min |
| Jun 23, 8:55 PM CDT | Tornado Watch | SPC | Burt, Cass, Douglas, Gage, Jefferson, Johnson and 11 more | 4 hr |
| Jun 23, 9:10 PM CDT | Mesoscale Discussion | SPC | Boyd | 65 min |
| Jun 23, 9:10 PM CDT | Tornado Watch | SPC | Banner, Box Butte, Cheyenne, Deuel, Garden, Kimball and 3 more | 4 hr |
| Jun 23, 10:38 PM CDT | Mesoscale Discussion | SPC | Cedar, Dakota, Dixon, Pierce, Wayne | 67 min |
| Jun 23, 10:50 PM CDT | Tornado Watch | SPC | Adams, Antelope, Boone, Buffalo, Butler, Cedar and 26 more | 5 hr |
| Jun 23, 10:50 PM CDT | Tornado Watch | SPC | Arthur, Blaine, Chase, Custer, Dawson, Frontier and 10 more | 5 hr |
| Jun 23, 11:08 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cheyenne, Garden, Grant, Kimball and 3 more | 67 min |
| Jun 23, 11:45 PM CDT | Severe Thunderstorm Watch | SPC | Boyd, Brown, Cherry, Grant, Holt, Hooker and 3 more | 6 hr |
| Jun 24, 12:50 AM CDT | Severe Thunderstorm Watch | SPC | Banner, Cheyenne, Deuel, Garden, Kimball, Morrill and 1 more | 3 hr |
| Jun 24, 1:52 AM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Cedar, Dakota, Dixon, Garfield and 9 more | 53 min |
| Jun 24, 2:44 AM CDT | Mesoscale Discussion | SPC | Boyd, Brown, Cherry, Grant, Holt, Hooker and 3 more | 2 hr |
| Jun 24, 1:29 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Boyd, Brown, Buffalo and 22 more | 3 hr |
| Jun 24, 2:15 PM CDT | Tornado Watch | SPC | Antelope, Blaine, Boyd, Brown, Cedar, Cherry and 18 more | 8 hr |
| Jun 24, 5:59 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boyd, Brown, Cedar, Dixon and 11 more | 61 min |
Nearby
Tornado Watches in Nebraska, 2003Tornado Watches in Kansas, 2003Every tornado watch in 2003
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.