Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 73, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at Aug 6, 2011, 6:01 PM CDT for Hamilton County, Merrick County, Nebraska. It was in force for 29 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
- Aug 6, 2011, 6:01 PM CDT (23:01 UTC)
- Expired
- Aug 6, 2011, 6:30 PM CDT
- In force
- 29 min
- Issued by
- NWS Hastings, NE
- Area
- Storm-based polygon
Counties Hamilton County, NE, Merrick County, NE
The radar
The Grand Island radar (KUEX), 72 km from the middle of the area, began a volume at 23:04 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 |
|---|---|---|---|
| Aug 6, 6:10 PM CDT | HAIL 1.75 | 2 E Chapman, 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 |
|---|---|---|---|
| Aug 6, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.0 hours before the alert went out and 157 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
- 1049 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 487 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
889 WFUS53 KGID 062301 TORGID NEC081-121-062330- /O.NEW.KGID.TO.W.0073.110806T2301Z-110806T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HASTINGS NE 601 PM CDT SAT AUG 6 2011 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * TORNADO WARNING FOR... CENTRAL HAMILTON COUNTY IN SOUTH CENTRAL NEBRASKA... SOUTHWESTERN MERRICK COUNTY IN CENTRAL NEBRASKA... * UNTIL 630 PM CDT * AT 559 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CHAPMAN...OR 10 MILES NORTHEAST OF GRAND ISLAND...AND MOVING SOUTHEAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... CHAPMAN AND PHILLIPS. 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 4083 9821 4103 9829 4107 9818 4092 9795 TIME...MOT...LOC 2301Z 325DEG 13KT 4100 9821 HAIL 0.88IN $$
2 follow-up statements
910 WWUS53 KGID 062316 SVSGID SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HASTINGS NE 616 PM CDT SAT AUG 6 2011 NEC081-121-062330- /O.CON.KGID.TO.W.0073.000000T0000Z-110806T2330Z/ HAMILTON NE-MERRICK NE- 616 PM CDT SAT AUG 6 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL MERRICK AND CENTRAL HAMILTON COUNTIES UNTIL 630 PM CDT... AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CHAPMAN...OR 14 MILES EAST OF GRAND ISLAND... MOVING SOUTHEAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF CENTRAL HAMILTON COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4088 9807 4098 9821 4103 9812 4092 9795 TIME...MOT...LOC 2316Z 309DEG 17KT 4096 9809 HAIL 1.00IN $$
690 WWUS53 KGID 062331 SVSGID SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HASTINGS NE 631 PM CDT SAT AUG 6 2011 NEC081-121-062341- /O.EXP.KGID.TO.W.0073.000000T0000Z-110806T2330Z/ HAMILTON NE-MERRICK NE- 631 PM CDT SAT AUG 6 2011 ...THE TORNADO WARNING FOR SOUTH CENTRAL MERRICK AND CENTRAL HAMILTON COUNTIES HAS EXPIRED... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4088 9807 4098 9821 4103 9812 4092 9795 TIME...MOT...LOC 2316Z 309DEG 17KT 4096 9809 $$
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 3:56 AM CDT | Dense Fog Advisory | GID | Adams, Buffalo, Clay, Fillmore, Greeley, Hall and 12 more | 6 hr |
| Aug 6, 5:13 PM CDT | Severe Thunderstorm Warning | GID | Hamilton, Howard, Merrick | 47 min |
| Aug 6, 5:51 PM CDT | Severe Thunderstorm Warning | GID | Hamilton, Merrick | 39 min |
| Aug 6, 6:24 PM CDT | Severe Thunderstorm Warning | GID | Hamilton, Merrick, Polk, York | 51 min |
| Aug 6, 6:28 PM CDT | Severe Thunderstorm Warning | GID | Merrick, Nance, Polk | 16 min |
| Aug 6, 6:55 PM CDT | Severe Thunderstorm Warning | GID | York | 35 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.