Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 10, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 19, 2011, 3:08 PM MDT for Cheyenne County, Nebraska. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 19, 2011, 3:08 PM MDT (21:08 UTC)
- Expired
- Jun 19, 2011, 3:45 PM MDT
- In force
- 37 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
County Cheyenne County, NE
The radar
The Cheyenne radar (KCYS), 135 km from the middle of the area, began a volume at 21:07 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 19, 2:04 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.1 hours before the alert went out and 153 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
- 330 J/kg
- Mixed-layer CIN
- -236 J/kg
- Mixed-layer LCL
- 1573 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
880 WFUS55 KCYS 192108 TORCYS NEC033-192145- /O.NEW.KCYS.TO.W.0010.110619T2108Z-110619T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 308 PM MDT SUN JUN 19 2011 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA... * UNTIL 345 PM MDT * AT 302 PM MDT...A SPOTTER REPORTED A ROTATING WALL CLOUD 5 MILES SOUTH OF POTTER...OR 16 MILES WEST OF SIDNEY. DOPPLER RADAR SHOWED THIS ROTATING WALL CLOUD AND LIKELY FORMING TORNADO MOVING NORTHEAST AT 15 MPH. * THE TORNADO WILL BE NEAR... BROWNSON AROUND 335 PM MDT. OTHER LOCATIONS IMPACTED BY THE TORNADO INCLUDE I-80 EXIT 48. THIS INCLUDES INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 37 AND 52. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT FOR THE SAME AREA. && LAT...LON 4139 10317 4116 10300 4109 10330 4121 10337 TIME...MOT...LOC 2107Z 234DEG 14KT 4116 10326 $$ RUBIN
3 follow-up statements
389
WWUS55 KCYS 192116
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
316 PM MDT SUN JUN 19 2011
NEC033-192145-
/O.CON.KCYS.TO.W.0010.000000T0000Z-110619T2145Z/
CHEYENNE NE-
316 PM MDT SUN JUN 19 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR WEST CENTRAL CHEYENNE
COUNTY UNTIL 345 PM MDT...
AT 313 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR POTTER...OR 15 MILES WEST OF SIDNEY...MOVING
NORTHEAST AT 15 MPH.
THIS DANGEROUS STORM WILL BE NEAR...
BROWNSON AROUND 340 PM MDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE I-80 EXIT
48.
THIS INCLUDES INTERSTATE 80 IN NEBRASKA BETWEEN MILE MARKERS 39 AND
53.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...EITHER PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR
VEHICLE AND LIE DOWN IN A LOW LYING AREA.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
&&
LAT...LON 4112 10328 4122 10334 4139 10317 4116 10300
4112 10316
TIME...MOT...LOC 2116Z 234DEG 14KT 4118 10324
$$
RUBIN889
WWUS55 KCYS 192138
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
338 PM MDT SUN JUN 19 2011
NEC033-192145-
/O.CON.KCYS.TO.W.0010.000000T0000Z-110619T2145Z/
CHEYENNE NE-
338 PM MDT SUN JUN 19 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL CHEYENNE COUNTY
UNTIL 345 PM MDT...
AT 335 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR BROWNSON...OR 11 MILES NORTHWEST OF SIDNEY...
MOVING NORTHEAST AT 15 MPH.
THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF CENTRAL
CHEYENNE COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
&&
LAT...LON 4114 10314 4119 10322 4130 10326 4139 10317
4116 10300
TIME...MOT...LOC 2138Z 234DEG 14KT 4124 10312
$$
RUBIN245
WWUS55 KCYS 192148
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
348 PM MDT SUN JUN 19 2011
NEC033-192157-
/O.EXP.KCYS.TO.W.0010.000000T0000Z-110619T2145Z/
CHEYENNE NE-
348 PM MDT SUN JUN 19 2011
...THE TORNADO WARNING FOR CENTRAL CHEYENNE COUNTY HAS EXPIRED...
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA UNTIL 430 PM MDT.
LAT...LON 4114 10314 4119 10322 4130 10326 4139 10317
4116 10300
TIME...MOT...LOC 2138Z 234DEG 14KT 4124 10312
$$
RUBINThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 6:23 PM MDT | Flash Flood Watch | CYS | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 45 hr |
| Jun 19, 1:45 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 60 min |
| Jun 19, 2:27 PM MDT | Flash Flood Warning | CYS | Kimball | 70 min |
| Jun 19, 2:40 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Kimball | 31 min |
| Jun 19, 2:53 PM MDT | Flash Flood Warning | CYS | Cheyenne | 92 min |
| Jun 19, 3:25 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 65 min |
| Jun 19, 3:33 PM MDT | Flash Flood Warning | CYS | Kimball | 6 hr |
| Jun 19, 3:46 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 44 min |
| Jun 19, 4:21 PM MDT | Flash Flood Warning | CYS | Cheyenne | 6 hr |
| Jun 19, 4:26 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill | 23 min |
| Jun 19, 4:46 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 59 min |
Nearby
Tornado Warnings in Nebraska, 2011Every tornado warning in 2011Tornadoes in 2011
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.