Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Apr 26, 2012, 3:58 PM MDT for 4 counties in Nebraska. It was in force for 62 min. 3 reports 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
- Apr 26, 2012, 3:58 PM MDT (21:58 UTC)
- Expired
- Apr 26, 2012, 5:00 PM MDT
- In force
- 62 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Box Butte County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE
The radar
The Cheyenne radar (KCYS), 163 km from the middle of the area, began a volume at 22:00 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 |
|---|---|---|---|
| Apr 26, 4:30 PM MDT | HAIL 0.75 | 9 N Minatare, NE | |
| Apr 26, 4:37 PM MDT | HAIL 1.5 | 12 Ne Scottsbluff, NE | ESTMATED RAINFALL OF 4 INCHES AT LAKE MINATARE. |
| Apr 26, 4:40 PM MDT | HAIL 0.75 | 9 N Minatare, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 10.0 hours before the alert went out and 221 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
- 974 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
910 WUUS55 KCYS 262158 SVRCYS NEC013-123-157-165-262300- /O.NEW.KCYS.SV.W.0002.120426T2158Z-120426T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 358 PM MDT THU APR 26 2012 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN BOX BUTTE COUNTY IN THE PANHANDLE OF NEBRASKA... NORTHWESTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA... NORTHEASTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA... SOUTHEASTERN SIOUX COUNTY IN THE PANHANDLE OF NEBRASKA... * UNTIL 500 PM MDT * AT 355 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SCOTTSBLUFF...AND MOVING NORTHEAST AT 15 MPH. A SECOND STRONG THUNDERSTORM WAS LOCATED NEAR KILPATRICK LAKE...AND WAS ALSO MOVING NORTHEAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... SCOTTSBLUFF AIRPORT...LAKE ALICE...LAKE MINATARE CAMPGROUND...LAKE MINATARE...KILPATRICK LAKE...BEREA AND HEMINGFORD. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4242 10311 4201 10286 4179 10370 4192 10381 TIME...MOT...LOC 2157Z 238DEG 11KT 4190 10364 WIND...HAIL 60MPH 1.00IN $$ HAMMER/COX
2 follow-up statements
435 WWUS55 KCYS 262224 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 424 PM MDT THU APR 26 2012 NEC013-123-157-165-262300- /O.CON.KCYS.SV.W.0002.000000T0000Z-120426T2300Z/ BOX BUTTE NE-MORRILL NE-SCOTTS BLUFF NE-SIOUX NE- 424 PM MDT THU APR 26 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN SIOUX...NORTHEASTERN SCOTTS BLUFF...NORTHWESTERN MORRILL AND WESTERN BOX BUTTE COUNTIES UNTIL 500 PM MDT... AT 418 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE MINATARE...OR 8 MILES NORTHEAST OF SCOTTSBLUFF...MOVING NORTHEAST AT 15 MPH. A SECOND SEVERE THUNDERSTORM WILL ALSO IMPACT SOUTHWESTERN BOX BUTTE COUNTY...NEAR KILPATRICK LAKE. LOCATIONS IMPACTED INCLUDE... LAKE MINATARE CAMPGROUND...LAKE MINATARE...KILPATRICK LAKE...BEREA AND HEMINGFORD. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4182 10358 4199 10371 4242 10311 4201 10286 TIME...MOT...LOC 2222Z 238DEG 11KT 4194 10353 WIND...HAIL 60MPH 1.50IN $$ HAMMER/COX
670 WWUS55 KCYS 262245 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 445 PM MDT THU APR 26 2012 NEC013-123-157-165-262300- /O.CON.KCYS.SV.W.0002.000000T0000Z-120426T2300Z/ BOX BUTTE NE-MORRILL NE-SCOTTS BLUFF NE-SIOUX NE- 445 PM MDT THU APR 26 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN SIOUX...NORTHEASTERN SCOTTS BLUFF...NORTHWESTERN MORRILL AND WESTERN BOX BUTTE COUNTIES UNTIL 500 PM MDT... AT 441 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE MINATARE...OR 11 MILES NORTHEAST OF SCOTTSBLUFF...MOVING NORTHEAST AT 5 MPH. A SECOND SEVERE THUNDERSTORM WILL AFFECT AREAS NEAR KILPATRICK LAKE IN SOUTHWESTERN BOX BUTTE COUNTY. LOCATIONS IMPACTED INCLUDE... KILPATRICK LAKE...BEREA AND HEMINGFORD. PRECAUTIONARY/PREPAREDNESS ACTIONS... PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4184 10351 4196 10361 4242 10311 4201 10286 TIME...MOT...LOC 2244Z 245DEG 5KT 4194 10348 WIND...HAIL 60MPH 1.50IN $$ HAMMER/COX
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 11:05 AM MDT | Wind Advisory | CYS | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 10 hr |
| Apr 26, 1:51 PM MDT | Special Weather Statement | CYS | Box Butte | 54 min |
| Apr 26, 2:39 PM MDT | Wind Advisory | CYS | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 30 hr |
| Apr 26, 2:45 PM MDT | Special Weather Statement | CYS | Box Butte | 60 min |
| Apr 26, 3:27 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 63 min |
| Apr 26, 3:50 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 40 min |
| Apr 26, 4:04 PM MDT | Flash Flood Warning | CYS | Box Butte | 6 hr |
| Apr 26, 4:30 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 18 min |
| Apr 26, 5:01 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Morrill, Scotts Bluff, Sioux | 37 min |
| Apr 26, 5:02 PM MDT | Flash Flood Warning | CYS | Scotts Bluff | 6 hr |
| Apr 26, 5:09 PM MDT | Special Weather Statement | CYS | Box Butte | 66 min |
| Apr 26, 5:35 PM MDT | Special Weather Statement | CYS | Box Butte | 25 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2012Every severe thunderstorm warning in 2012
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.