Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 22, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jul 2, 2011, 8:30 PM MDT for Banner County, Kimball County, Scotts Bluff County, Nebraska; Goshen County, Wyoming. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 2, 2011, 8:30 PM MDT (02:30 UTC)
- Expired
- Jul 2, 2011, 9:15 PM MDT
- In force
- 45 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Banner County, NE, Kimball County, NE, Scotts Bluff County, NE, Goshen County, WY
The radar
The Cheyenne radar (KCYS), 90 km from the middle of the area, began a volume at 02:31 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 2, 8:35 PM MDT | HAIL 1 | 17 S Lyman, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 2, 2:13 PM MDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 2.5 hours before the alert went out and 202 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
- 920 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 2294 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.0
The text
As transmitted, in the capitals the NWS used until 2016.
682 WFUS55 KCYS 030230 TORCYS NEC007-105-157-WYC015-030315- /O.NEW.KCYS.TO.W.0022.110703T0230Z-110703T0315Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 830 PM MDT SAT JUL 2 2011 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... BANNER COUNTY IN THE PANHANDLE OF NEBRASKA... NORTHWESTERN KIMBALL COUNTY IN THE PANHANDLE OF NEBRASKA... SOUTHWESTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA... SOUTHEASTERN GOSHEN COUNTY IN SOUTHEAST WYOMING... * UNTIL 915 PM MDT * AT 827 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 9 MILES EAST OF LA GRANGE...OR 22 MILES SOUTHWEST OF SCOTTSBLUFF...AND MOVING SOUTHEAST AT 25 MPH. THIS STORM HAS A HISTORY OF PRODUCING BRIEF TORNADOES AND LARGE HAIL TO THE SIZE OF GOLF BALLS. * LOCATIONS IMPACTED INCLUDE... HARRISBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CHEYENNE. && LAT...LON 4169 10412 4185 10391 4152 10349 4129 10395 TIME...MOT...LOC 0228Z 325DEG 21KT 4166 10399 $$ MAZUR
3 follow-up statements
609 WWUS55 KCYS 030248 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 848 PM MDT SAT JUL 2 2011 WYC015-030257- /O.CAN.KCYS.TO.W.0022.000000T0000Z-110703T0315Z/ GOSHEN WY- 848 PM MDT SAT JUL 2 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN GOSHEN COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CHEYENNE. LAT...LON 4133 10387 4161 10402 4179 10384 4152 10349 TIME...MOT...LOC 0247Z 308DEG 32KT 4156 10382 $$ NEC007-105-157-030315- /O.CON.KCYS.TO.W.0022.000000T0000Z-110703T0315Z/ BANNER NE-KIMBALL NE-SCOTTS BLUFF NE- 848 PM MDT SAT JUL 2 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL SCOTTS BLUFF...NORTH CENTRAL KIMBALL AND BANNER COUNTIES UNTIL 915 PM MDT... AT 845 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES WEST OF HARRISBURG...OR 23 MILES SOUTHWEST OF SCOTTSBLUFF...MOVING SOUTHEAST AT 35 MPH. LOCATIONS IMPACTED INCLUDE... HARRISBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CHEYENNE. && LAT...LON 4133 10387 4161 10402 4179 10384 4152 10349 TIME...MOT...LOC 0247Z 308DEG 32KT 4156 10382 $$ MAZUR
789
WWUS55 KCYS 030302
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
902 PM MDT SAT JUL 2 2011
NEC105-157-030312-
/O.CAN.KCYS.TO.W.0022.000000T0000Z-110703T0315Z/
KIMBALL NE-SCOTTS BLUFF NE-
902 PM MDT SAT JUL 2 2011
...THE TORNADO WARNING FOR SOUTH CENTRAL SCOTTS BLUFF AND NORTH
CENTRAL KIMBALL COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
LAT...LON 4141 10371 4165 10388 4170 10380 4170 10372
4152 10349
TIME...MOT...LOC 0302Z 306DEG 32KT 4157 10374
$$
NEC007-030315-
/O.CON.KCYS.TO.W.0022.000000T0000Z-110703T0315Z/
BANNER NE-
902 PM MDT SAT JUL 2 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BANNER COUNTY
UNTIL 915 PM MDT...
AT 859 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR HARRISBURG...OR 20 MILES SOUTH OF
SCOTTSBLUFF...MOVING SOUTHEAST AT 35 MPH.
IN ADDITION...HAIL TO THE SIZE OF HALF DOLLARS IS POSSIBLE WITH THIS
STORM.
LOCATIONS IMPACTED INCLUDE...
HARRISBURG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
&&
LAT...LON 4141 10371 4165 10388 4170 10380 4170 10372
4152 10349
TIME...MOT...LOC 0302Z 306DEG 32KT 4157 10374
$$
MAZUR169
WWUS55 KCYS 030312
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
912 PM MDT SAT JUL 2 2011
NEC007-030322-
/O.EXP.KCYS.TO.W.0022.000000T0000Z-110703T0315Z/
BANNER NE-
912 PM MDT SAT JUL 2 2011
...THE TORNADO WARNING FOR CENTRAL BANNER COUNTY WILL EXPIRE AT 915
PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN CHEYENNE.
REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR
EASTERN BANNER...SOUTHEASTERN SCOTTS BLUFF...WESTERN MORRILL AND
NORTHWESTERN CHEYENNE COUNTY UNTIL 10 PM.
LAT...LON 4141 10371 4165 10388 4170 10380 4170 10372
4152 10349
TIME...MOT...LOC 0312Z 306DEG 32KT 4145 10371
$$
MAZURThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 6:44 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 61 min |
| Jul 2, 6:56 PM MDT | Tornado Warning | CYS | Sioux | 49 min |
| Jul 2, 7:23 PM MDT | Tornado Warning | CYS | Banner, Scotts Bluff, Sioux | 37 min |
| Jul 2, 7:41 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill, Scotts Bluff, Sioux | 49 min |
| Jul 2, 7:54 PM MDT | Tornado Warning | CYS | Banner, Scotts Bluff | 40 min |
| Jul 2, 8:25 PM MDT | Flash Flood Warning | CYS | Banner, Scotts Bluff | 6 hr |
| Jul 2, 9:11 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill, Scotts Bluff | 49 min |
| Jul 3, 1:55 AM MDT | Areal Flood Warning | CYS | Banner, Scotts Bluff | 7 hr |
| Jul 2, 6:04 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 41 min |
| Jul 2, 6:22 PM MDT | Tornado Warning | CYS | Goshen | 37 min |
Nearby
Tornado Warnings in Nebraska, 2011Tornado Warnings in Wyoming, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.