Alert archive / Nebraska / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 101
The Storm Prediction Center issued this severe thunderstorm watch at Apr 24, 2016, 2:28 PM CDT for 6 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 24, 2016, 2:28 PM CDT (19:28 UTC)
- Expired
- Apr 24, 2016, 10:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 65 kt
All 107 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Harrison County, IA, Ida County, IA, Lyon County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, O'Brien County, IA, Osceola County, IA, Page County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Pottawattamie County, IA, Sac County, IA, Shelby County, IA, Sioux County, IA, Taylor County, IA, Woodbury County, IA, Jewell County, KS, Mitchell County, KS, Osborne County, KS, Smith County, KS, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Atchison County, MO, Holt County, MO, Nodaway County, MO, Adams County, NE, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Hall County, NE, Hamilton County, NE, Jefferson County, NE, Johnson County, NE, Knox County, NE, Lancaster County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, Webster County, NE, York County, NE, Bon Homme County, SD, Brookings County, SD, Clay County, SD, Hanson County, SD, Hutchinson County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Omaha radar (KOAX), 51 km from the middle of the area, began a volume at 19:26 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
- 20%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 90%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 3:56 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 34 min |
| Apr 24, 4:04 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 41 min |
| Apr 24, 4:06 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 39 min |
| Apr 24, 4:30 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 30 min |
| Apr 24, 4:43 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Plymouth, Woodbury | 47 min |
| Apr 24, 5:13 PM CDT | Severe Thunderstorm Warning | GID | Adams, Clay, Nuckolls, Webster | 25 min |
| Apr 24, 5:22 PM CDT | Severe Thunderstorm Warning | GID | Jewell, Mitchell | 38 min |
| Apr 24, 5:27 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 33 min |
| Apr 24, 5:33 PM CDT | Severe Thunderstorm Warning | GID | Jewell | 42 min |
| Apr 24, 5:52 PM CDT | Severe Thunderstorm Warning | GID | Mitchell, Osborne | 22 min |
| Apr 24, 5:55 PM CDT | Severe Thunderstorm Warning | GID | Nuckolls | 50 min |
| Apr 24, 6:03 PM CDT | Tornado Warning | GID | Nuckolls | 27 min |
| Apr 24, 6:04 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 24 min |
| Apr 24, 6:06 PM CDT | Severe Thunderstorm Warning | GID | Jewell | 39 min |
| Apr 24, 6:24 PM CDT | Severe Thunderstorm Warning | GID | Fillmore, Thayer | 21 min |
| Apr 24, 6:30 PM CDT | Severe Thunderstorm Warning | GID | Nuckolls, Thayer | 28 min |
| Apr 24, 6:33 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 27 min |
| Apr 24, 7:06 PM CDT | Severe Thunderstorm Warning | OAX | Saunders | 24 min |
| Apr 24, 7:07 PM CDT | Severe Thunderstorm Warning | GID | Thayer | 23 min |
| Apr 24, 7:12 PM CDT | Severe Thunderstorm Warning | GID | Merrick, Nance | 24 min |
| Apr 24, 7:12 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster | 33 min |
| Apr 24, 7:21 PM CDT | Severe Thunderstorm Warning | OAX | Jefferson | 24 min |
| Apr 24, 7:25 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Dodge, Douglas, Washington | 35 min |
| Apr 24, 7:29 PM CDT | Severe Thunderstorm Warning | OAX | Saunders | 31 min |
| Apr 24, 8:45 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 18 min |
| Apr 24, 8:48 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 42 min |
| Apr 24, 9:32 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 36 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
Omaha, NE (KOAX), launched 12:00Z, 7.5 hours before the alert went out and 50 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1281 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 440 m²/s²
- 0-3 km storm-relative helicity
- 498 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
047
WWUS20 KWNS 241926
SEL1
SPC WW 241926
IAZ000-KSZ000-MNZ000-MOZ000-NEZ000-SDZ000-250300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 101
NWS STORM PREDICTION CENTER NORMAN OK
225 PM CDT SUN APR 24 2016
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN IOWA
NORTH CENTRAL KANSAS
SOUTHWEST MINNESOTA
FAR NORTHWEST MISSOURI
EASTERN NEBRASKA
SOUTHEAST SOUTH DAKOTA
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
1000 PM CDT.
* PRIMARY THREATS INCLUDE...
WIDESPREAD LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL
EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
TO 75 MPH POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...A BROKEN BAND OR TWO OF STRONG TO SEVERE THUNDERSTORMS
WILL MOVE FROM EASTERN NEBRASKA INTO WESTERN IOWA AND NORTHWEST
MISSOURI LATER TODAY...WITH ADDITIONAL STORMS FORMING IN THE WAKE OF
THESE ACROSS SOUTH-CENTRAL NEBRASKA. OTHER STORMS SHOULD
FORM/STRENGTHEN NORTHWARD FROM NORTHEAST NEBRASKA INTO SOUTHEAST
SOUTH DAKOTA AND SOUTHWEST MINNESOTA. SOME OF THE
ACTIVITY...ESPECIALLY IN NEBRASKA AND WESTERN IOWA...WILL BE CAPABLE
OF LARGE HAIL...DAMAGING WIND...AND POSSIBLE A TORNADO OR TWO
THROUGH EARLY TONIGHT.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH
SOUTHWEST OF BEATRICE NEBRASKA TO 45 MILES NORTH NORTHWEST OF
WORTHINGTON MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
&&
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 22040.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 1:31 PM CDT | Mesoscale Discussion | SPC | Audubon, Buena Vista, Carroll, Cass, Cherokee, Clay and 18 more | 119 min |
| Apr 24, 6:10 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Crawford, Dickinson, Emmet and 15 more | 65 min |
| Apr 23, 9:28 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Greeley, Logan, Rawlins, Scott, Sherman and 3 more | 92 min |
| Apr 24, 1:50 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clay, Cloud, Comanche, Dickinson and 19 more | 2 hr |
| Apr 24, 3:04 PM CDT | Tornado Watch | SPC | Barber, Barton, Brown, Butler, Chase, Clay and 39 more | 9 hr |
| Apr 24, 5:50 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Brown, Butler, Chase, Chautauqua and 42 more | 55 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2016Severe Thunderstorm Watches in Iowa, 2016Severe Thunderstorm Watches in South Dakota, 2016Every severe thunderstorm watch in 2016
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.