Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 4, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at May 30, 2011, 4:47 PM CDT for Holt County, Rock County, Nebraska. It was in force for 28 min. 8 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
- May 30, 2011, 4:47 PM CDT (21:47 UTC)
- Expired
- May 30, 2011, 5:15 PM CDT
- In force
- 28 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
Counties Holt County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 143 km from the middle of the area, began a volume at 21:47 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 |
|---|---|---|---|
| May 30, 5:00 PM CDT | HAIL 2.75 | 6 Sw Atkinson, NE | BASEBALL SIZED HAIL 6 MILES SOUTHWEST OF ATKINSON. |
| May 30, 5:05 PM CDT | TORNADO | 3 S Atkinson, NE | DISPATCHER RELAYED REPORT OF TORNADO 3 MILES SOUTH OF ATKINSON. LOTS OF DEBRIS REPORTED ALONG HIGHWAY 11. |
| May 30, 5:10 PM CDT | HAIL 2.75 | Atkinson, NE | BASEBALL SIZED HAIL FALLING 1 MILE SOUTH OF ATKINSON ON HIGHWAY 11. |
| May 30, 5:10 PM CDT | HAIL 4 | Atkinson, NE | AT LEAST GRAPEFRUIT SIZE HAIL REPORTED IN THE CENTER OF ATKINSON. TIME OF REPORT WAS 510 PM CDT. |
| May 30, 5:11 PM CDT | HAIL 2.75 | Atkinson, NE | BASEBALL SIZE HAIL FALLING IN SOUTHWEST PART OF ATKINSON. |
| May 30, 5:13 PM CDT | HAIL 2.75 | Atkinson, NE | BASEBALL HAIL FALLING AT COUNTRY CLUB AND ELSEWHERE IN ATKINSON. |
| May 30, 5:16 PM CDT | HAIL 2 | 3 Ne Atkinson, NE | |
| May 30, 5:17 PM CDT | HAIL 4 | 3 Ese Atkinson, NE | NEARLY GRAPEFRUIT SIZE HAIL SIZE MEASURED BY STORM CHASER. ACTUAL DIAMETER OF STONE WAS 3.5 INCHES. |
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 |
|---|---|---|---|
| May 30, 2:08 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.8 hours before the alert went out and 203 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
- 1099 J/kg
- Mixed-layer CIN
- -360 J/kg
- Mixed-layer LCL
- 2078 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
397 WFUS53 KLBF 302147 TORLBF NEC089-149-302215- /O.NEW.KLBF.TO.W.0004.110530T2147Z-110530T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 447 PM CDT MON MAY 30 2011 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL HOLT COUNTY IN NORTH CENTRAL NEBRASKA... EAST CENTRAL ROCK COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 515 PM CDT * AT 443 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR PONY LAKE...OR 20 MILES SOUTHEAST OF BASSETT...AND MOVING NORTHEAST AT 40 MPH. * THIS DANGEROUS STORM WILL BE NEAR... ATKINSON AROUND 510 PM CDT. 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. && LAT...LON 4271 9886 4253 9869 4226 9926 4241 9940 TIME...MOT...LOC 2147Z 235DEG 35KT 4240 9921 $$ POWER
1 follow-up statement
161 WWUS53 KLBF 302207 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 507 PM CDT MON MAY 30 2011 NEC089-149-302215- /O.CON.KLBF.TO.W.0004.000000T0000Z-110530T2215Z/ HOLT NE-ROCK NE- 507 PM CDT MON MAY 30 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL ROCK AND CENTRAL HOLT COUNTIES UNTIL 515 PM CDT... AT 501 PM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO. THIS TORNADO WAS LOCATED 3 MILES SOUTHWEST OF ATKINSON. MOVING NORTHEAST AT 40 MPH. THE TORNADO WILL AFFECT ATKINSON. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4271 9886 4253 9869 4226 9926 4241 9940 TIME...MOT...LOC 2206Z 235DEG 35KT 4250 9900 $$ POWER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 10:08 PM CDT | Severe Thunderstorm Warning | LBF | Holt | 52 min |
| May 29, 10:59 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Holt | 30 min |
| May 30, 3:57 AM CDT | Wind Advisory | LBF | Blaine, Brown, Chase, Custer, Frontier, Garfield and 11 more | 14 hr |
| May 30, 3:03 PM CDT | Severe Thunderstorm Warning | LBF | Keya Paha, Rock | 42 min |
| May 30, 3:09 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer | 36 min |
| May 30, 3:43 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 47 min |
| May 30, 4:08 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 52 min |
| May 30, 4:18 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Logan | 42 min |
| May 30, 4:28 PM CDT | Tornado Warning | LBF | Rock | 32 min |
| May 30, 4:55 PM CDT | Tornado Warning | LBF | Blaine | 35 min |
| May 30, 5:01 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Logan | 44 min |
| May 30, 5:03 PM CDT | Severe Thunderstorm Warning | LBF | Boyd | 16 min |
| May 30, 5:10 PM CDT | Tornado Warning | LBF | Holt | 35 min |
| May 30, 5:24 PM CDT | Tornado Warning | LBF | Brown, Loup, Rock | 36 min |
| May 30, 5:33 PM CDT | Flash Flood Warning | LBF | Blaine | 3 hr |
| May 30, 5:37 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Rock | 38 min |
| May 30, 5:43 PM CDT | Tornado Warning | LBF | Boyd, Holt | 32 min |
| May 30, 5:46 PM CDT | Tornado Warning | LBF | Holt, Rock | 29 min |
| May 30, 5:50 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer | 40 min |
| May 30, 5:50 PM CDT | Severe Thunderstorm Warning | LBF | Arthur, Garden, Grant, Sheridan | 40 min |
| May 30, 6:11 PM CDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 49 min |
| May 30, 6:17 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Loup, Rock | 43 min |
| May 30, 6:22 PM CDT | High Wind Warning | LBF | Chase, Frontier, Hayes, Keith, Lincoln, Logan and 2 more | 98 min |
| May 30, 6:25 PM CDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 50 min |
| May 30, 6:33 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 42 min |
| May 30, 6:40 PM CDT | Tornado Warning | LBF | Holt | 35 min |
| May 30, 6:54 PM CDT | Tornado Warning | LBF | Boyd, Holt | 21 min |
| May 30, 6:56 PM CDT | Severe Thunderstorm Warning | LBF | Loup | 49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.