Alert archive / Kansas / Tornado Watches in 2018
Tornado Watch 127
The Storm Prediction Center issued this tornado watch at May 28, 2018, 1:12 PM MDT for 5 counties in Colorado; 25 counties in Kansas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- May 28, 2018, 1:12 PM MDT (19:12 UTC)
- Expired
- May 28, 2018, 9:00 PM MDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 30 counties
Cheyenne County, CO, Kit Carson County, CO, Lincoln County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Greeley County, KS, Jewell County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS
The radar
The Goodland radar (KGLD), 56 km from the middle of the area, began a volume at 19:12 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
- 60%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 90%
- One or more hailstones of 2 inches or more
- 70%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
58 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 1:13 PM MDT | Severe Thunderstorm Warning | GID | Phillips, Smith | 32 min |
| May 28, 1:30 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 45 min |
| May 28, 1:43 PM MDT | Severe Thunderstorm Warning | GID | Phillips | 47 min |
| May 28, 1:48 PM MDT | Severe Thunderstorm Warning | GLD | Graham, Norton | 27 min |
| May 28, 1:54 PM MDT | Severe Thunderstorm Warning | GLD | Gove, Graham, Sheridan | 51 min |
| May 28, 2:06 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 42 min |
| May 28, 2:13 PM MDT | Severe Thunderstorm Warning | GID | Rooks | 47 min |
| May 28, 2:35 PM MDT | Flash Flood Warning | GLD | Gove, Graham, Sheridan | 98 min |
| May 28, 2:36 PM MDT | Flash Flood Warning | DDC | Trego | 3 hr |
| May 28, 2:47 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 58 min |
| May 28, 2:48 PM MDT | Tornado Warning | GID | Phillips, Rooks | 27 min |
| May 28, 2:58 PM MDT | Severe Thunderstorm Warning | GLD | Gove, Graham, Sheridan | 47 min |
| May 28, 3:22 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Wallace, Wichita | 35 min |
| May 28, 3:23 PM MDT | Severe Thunderstorm Warning | DDC | Lane, Ness, Trego | 23 min |
| May 28, 3:23 PM MDT | Flash Flood Warning | GLD | Graham | 6 hr |
| May 28, 3:26 PM MDT | Tornado Warning | GLD | Gove | 19 min |
| May 28, 3:49 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Lane, Scott | 18 min |
| May 28, 3:52 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Thomas | 39 min |
| May 28, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Thomas | 30 min |
| May 28, 4:03 PM MDT | Severe Thunderstorm Warning | GLD | Gove | 42 min |
| May 28, 4:10 PM MDT | Flash Flood Warning | GLD | Gove, Sheridan | 6 hr |
| May 28, 4:18 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 42 min |
| May 28, 4:18 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 36 min |
| May 28, 4:20 PM MDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 40 min |
| May 28, 4:21 PM MDT | Severe Thunderstorm Warning | GLD | Gove | 39 min |
| May 28, 4:48 PM MDT | Tornado Warning | GLD | Cheyenne | 8 min |
| May 28, 4:51 PM MDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 39 min |
| May 28, 4:59 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 46 min |
| May 28, 5:04 PM MDT | Tornado Warning | BOU | Washington | 26 min |
| May 28, 5:06 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 17 min |
| May 28, 5:07 PM MDT | Tornado Warning | GLD | Kit Carson | 23 min |
| May 28, 5:07 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Lane, Scott | 53 min |
| May 28, 5:20 PM MDT | Flash Flood Warning | DDC | Trego | 6 hr |
| May 28, 5:23 PM MDT | Tornado Warning | GLD | Kit Carson | 37 min |
| May 28, 5:26 PM MDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 49 min |
| May 28, 5:27 PM MDT | Tornado Warning | BOU | Logan, Washington | 33 min |
| May 28, 5:35 PM MDT | Severe Thunderstorm Warning | GLD | Rawlins | 40 min |
| May 28, 5:36 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 39 min |
| May 28, 5:43 PM MDT | Severe Thunderstorm Warning | DDC | Trego | 47 min |
| May 28, 5:46 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 44 min |
| May 28, 5:50 PM MDT | Tornado Warning | GLD | Kit Carson | 25 min |
| May 28, 5:52 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 53 min |
| May 28, 5:54 PM MDT | Severe Thunderstorm Warning | GID | Phillips, Rooks, Smith | 36 min |
| May 28, 5:55 PM MDT | Severe Thunderstorm Warning | DDC | Lane, Ness, Scott, Trego | 50 min |
| May 28, 6:05 PM MDT | Severe Thunderstorm Warning | DDC | Finney, Gray, Hodgeman, Lane, Ness, Scott | 55 min |
| May 28, 6:11 PM MDT | Tornado Warning | DDC | Lane | 10 min |
| May 28, 6:14 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 46 min |
| May 28, 6:23 PM MDT | Severe Thunderstorm Warning | DDC | Ellis, Trego | 50 min |
| May 28, 6:37 PM MDT | Severe Thunderstorm Warning | DDC | Ellis, Finney, Hodgeman, Lane, Ness, Pawnee and 3 more | 53 min |
| May 28, 6:51 PM MDT | Severe Thunderstorm Warning | DDC | Edwards, Finney, Ford, Gray, Haskell, Hodgeman and 3 more | 54 min |
| May 28, 6:53 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Logan, Rawlins, Sherman, Thomas, Wallace | 52 min |
| May 28, 6:58 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 47 min |
| May 28, 7:03 PM MDT | Tornado Warning | DDC | Hodgeman, Ness | 12 min |
| May 28, 7:12 PM MDT | Severe Thunderstorm Warning | DDC | Ellis, Ness, Rush, Trego | 39 min |
| May 28, 7:22 PM MDT | Severe Thunderstorm Warning | DDC | Ness, Pawnee, Rush, Trego | 29 min |
| May 28, 7:50 PM MDT | Severe Thunderstorm Warning | DDC | Ellis, Ness, Pawnee, Rush, Trego | 55 min |
| May 28, 8:11 PM MDT | Severe Thunderstorm Warning | ICT | Barton, Russell | 64 min |
| May 28, 8:22 PM MDT | Flash Flood Warning | DDC | Ellis, Trego | 6 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 7.2 hours before the alert went out and 194 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
- 69 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 854 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted.
322
WWUS20 KWNS 281909
SEL7
SPC WW 281909
COZ000-KSZ000-NEZ000-290300-
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 127
NWS Storm Prediction Center Norman OK
210 PM CDT Mon May 28 2018
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Eastern Colorado
Northwest Kansas
South Central Nebraska
* Effective this Monday afternoon and evening from 210 PM until
1000 PM CDT.
* Primary threats include...
A few tornadoes likely with a couple intense tornadoes possible
Widespread large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
SUMMARY...Ongoing thunderstorms and new development will affect the
watch area this afternoon and evening. Supercells capable of very
large hail, damaging winds, and a few tornadoes will be possible.
The tornado watch area is approximately along and 50 statute miles
north and south of a line from 35 miles west of Burlington CO to 45
miles northeast of Russell KS. For a complete depiction of the watch
see the associated watch outline update (WOUS64 KWNS WOU7).
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.
&&
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 3 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 24030.
...HartSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 12:19 PM MDT | Mesoscale Discussion | SPC | Jackson, Routt | 86 min |
| May 28, 12:46 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson | 59 min |
| May 28, 1:39 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 7 more | 96 min |
| May 28, 2:01 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Crowley and 13 more | 7 hr |
| May 28, 4:54 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Washington, Yuma | 96 min |
| May 28, 1:21 PM MDT | Mesoscale Discussion | SPC | Grant, Gray, Haskell, Kearny, Meade, Morton and 3 more | 84 min |
| May 28, 2:17 PM MDT | Severe Thunderstorm Watch | SPC | Clark, Edwards, Finney, Ford, Grant, Gray and 11 more | 10 hr |
| May 28, 5:10 PM MDT | Mesoscale Discussion | SPC | Clark, Edwards, Finney, Ford, Grant, Gray and 10 more | 95 min |
Nearby
Tornado Watches in Kansas, 2018Tornado Watches in Colorado, 2018Every tornado watch in 2018
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.