Alert archive / Nebraska / Tornado Watches in 2013
Tornado Watch 243
The Storm Prediction Center issued this tornado watch at May 29, 2013, 3:33 PM CDT for Fremont County, Mills County, Iowa; 10 counties in Kansas; 15 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2013, 3:33 PM CDT (20:33 UTC)
- Expired
- May 29, 2013, 10:35 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 27 counties
Fremont County, IA, Mills County, IA, Clay County, KS, Cloud County, KS, Dickinson County, KS, Geary County, KS, Marshall County, KS, Morris County, KS, Ottawa County, KS, Republic County, KS, Riley County, KS, Washington County, KS, Butler County, NE, Cass County, NE, Colfax County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Platte County, NE, Richardson County, NE, Saline County, NE, Saunders County, NE, Seward County, NE
The radar
The Topeka radar (KTWX), 92 km from the middle of the area, began a volume at 20:34 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 4:16 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Ottawa | 44 min |
| May 29, 4:35 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson, Saline | 25 min |
| May 29, 4:39 PM CDT | Flash Flood Warning | TOP | Ottawa | 4 hr |
| May 29, 4:46 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Saline, Seward | 44 min |
| May 29, 4:55 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Cloud, Ottawa, Republic, Washington | 50 min |
| May 29, 4:57 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson, Saline | 33 min |
| May 29, 5:25 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Platte | 35 min |
| May 29, 5:39 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster, Saline, Seward | 36 min |
| May 29, 5:40 PM CDT | Flash Flood Warning | OAX | Jefferson, Saline | 3 hr |
| May 29, 5:53 PM CDT | Tornado Warning | OAX | Lancaster, Seward | 37 min |
| May 29, 5:59 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax | 46 min |
| May 29, 6:03 PM CDT | Tornado Warning | OAX | Butler, Colfax | 27 min |
| May 29, 6:22 PM CDT | Flash Flood Warning | OAX | Lancaster, Saline, Seward | 3 hr |
| May 29, 6:45 PM CDT | Tornado Warning | OAX | Saunders | 30 min |
| May 29, 7:09 PM CDT | Flash Flood Warning | OAX | Lancaster | 3 hr |
| May 29, 7:12 PM CDT | Flash Flood Warning | OAX | Lancaster, Saunders | 3 hr |
| May 29, 8:19 PM CDT | Flash Flood Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 5 hr |
| May 29, 9:11 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Lyon, Morris, Osage | 34 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
Topeka, KS (KTOP), launched 12:00Z, 8.6 hours before the alert went out and 134 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
- 1201 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 276 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.7
The text
As transmitted, in the capitals the NWS used until 2016.
420
WWUS20 KWNS 292033
SEL3
SPC WW 292033
IAZ000-KSZ000-NEZ000-300400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 243
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CDT WED MAY 29 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
FAR SOUTHWEST IOWA
NORTHEAST KANSAS
SOUTHEAST NEBRASKA
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 335 PM
UNTIL 1100 PM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES EAST SOUTHEAST OF
SALINA KANSAS TO 20 MILES NORTHEAST OF LINCOLN NEBRASKA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU3).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 239...WW 240...WW
241...WW 242...
DISCUSSION...TSTM DEVELOPMENT IS ANTICIPATED LATE THIS AFTERNOON
ALONG NWD-MOVING OUTFLOW BOUNDARY OVER SERN NEB WITH ONGOING STORMS
OVER S-CNTRL KS MOVING INTO NERN KS PORTION OF WATCH. THE AMBIENT
AIR MASS IS MODERATELY UNSTABLE WITH THE STRONGEST SHEAR SITUATED
ALONG THE OUTFLOW BOUNDARY. SUPERCELLS AND BOWING STRUCTURES APPEAR
PROBABLE WITH A RISK FOR LARGE HAIL...DAMAGING WINDS...AND A COUPLE
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24030.
...MEADSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 9:20 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 10 more | 55 min |
| May 29, 8:54 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 33 more | 2 hr |
| May 29, 2:39 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Chickasaw and 19 more | 66 min |
| May 29, 2:56 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 29 more | 7 hr |
| May 29, 5:54 PM CDT | Mesoscale Discussion | SPC | Allamakee, Appanoose, Benton, Black Hawk, Bremer, Buchanan and 32 more | 66 min |
| May 29, 6:24 PM CDT | Tornado Watch | SPC | Adams, Audubon, Buena Vista, Carroll, Cass, Cherokee and 20 more | 4 hr |
| May 28, 7:36 PM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Finney, Ford and 13 more | 114 min |
| May 28, 7:52 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Greeley and 14 more | 113 min |
| May 29, 11:33 AM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche | 2 hr |
| May 29, 12:22 PM CDT | Tornado Watch | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 38 more | 11 hr |
| May 29, 12:52 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Norton, Phillips, Rawlins and 4 more | 53 min |
| May 29, 1:04 PM CDT | Tornado Watch | SPC | Cheyenne, Decatur, Graham, Jewell, Mitchell, Norton and 8 more | 9 hr |
| May 29, 3:00 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 32 more | 60 min |
| May 29, 3:12 PM CDT | Mesoscale Discussion | SPC | Butler, Chase, Clay, Cloud, Coffey, Cowley and 24 more | 2 hr |
| May 29, 3:24 PM CDT | Mesoscale Discussion | SPC | Decatur, Graham, Jewell, Mitchell, Norton, Osborne and 6 more | 66 min |
| May 29, 6:20 PM CDT | Mesoscale Discussion | SPC | Butler, Chase, Chautauqua, Coffey, Cowley, Elk and 4 more | 85 min |
| May 29, 12:57 AM CDT | Severe Thunderstorm Watch | SPC | Blaine, Custer, Hooker, Lincoln, Logan, Loup and 2 more | 3 hr |
| May 29, 5:18 PM CDT | Mesoscale Discussion | SPC | Burt, Cedar, Colfax, Cuming, Dakota, Dixon and 10 more | 87 min |
Nearby
Tornado Watches in Nebraska, 2013Tornado Watches in Kansas, 2013Tornado Watches in Iowa, 2013Every tornado watch in 2013
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.