Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 76, NWS Hastings, NE
NWS Hastings, NE issued this tornado warning at Aug 18, 2011, 8:45 PM CDT for Polk County, York County, Nebraska. It was in force for 21 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
- Aug 18, 2011, 8:45 PM CDT (01:45 UTC)
- Expired
- Aug 18, 2011, 9:06 PM CDT
- In force
- 21 min
- Issued by
- NWS Hastings, NE
- Area
- Storm-based polygon
Counties Polk County, NE, York County, NE
The radar
The Omaha radar (KOAX), 105 km from the middle of the area, began a volume at 01:45 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 |
|---|---|---|---|
| Aug 18, 6:38 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 1.8 hours before the alert went out and 104 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
- 1385 J/kg
- Mixed-layer CIN
- -135 J/kg
- Mixed-layer LCL
- 582 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 289 m²/s²
- 0-3 km storm-relative helicity
- 636 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 47.4
The text
As transmitted, in the capitals the NWS used until 2016.
571
WFUS53 KGID 190145
TORGID
NEC143-185-190215-
/O.NEW.KGID.TO.W.0076.110819T0145Z-110819T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
845 PM CDT THU AUG 18 2011
THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL POLK COUNTY IN EAST CENTRAL NEBRASKA...
NORTHEASTERN YORK COUNTY IN EAST CENTRAL NEBRASKA...
* UNTIL 915 PM CDT
* AT 843 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTHWEST OF OSCEOLA...OR 18 MILES
SOUTHWEST OF COLUMBUS...AND MOVING SOUTH AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
OSCEOLA...STROMSBURG...BENEDICT AND THAYER.
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 4089 9767 4126 9773 4131 9766 4131 9760
4133 9759 4134 9750 4093 9737
TIME...MOT...LOC 0145Z 350DEG 26KT 4123 9759
HAIL <.75IN
$$
HEINLEIN2 follow-up statements
376
WWUS53 KGID 190201
SVSGID
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
901 PM CDT THU AUG 18 2011
NEC143-185-190215-
/O.CON.KGID.TO.W.0076.000000T0000Z-110819T0215Z/
POLK NE-YORK NE-
901 PM CDT THU AUG 18 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN YORK AND
SOUTHERN POLK COUNTIES UNTIL 915 PM CDT...
AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR STROMSBURG...OR 17 MILES NORTH OF YORK...
MOVING SOUTH AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
BENEDICT AND THAYER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4089 9767 4114 9769 4116 9764 4119 9759
4122 9754 4123 9748 4093 9737
TIME...MOT...LOC 0201Z 350DEG 26KT 4109 9754
HAIL 0.75IN
$$
HEINLEIN085
WWUS53 KGID 190206
SVSGID
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
906 PM CDT THU AUG 18 2011
NEC143-185-190215-
/O.CAN.KGID.TO.W.0076.000000T0000Z-110819T0215Z/
POLK NE-YORK NE-
906 PM CDT THU AUG 18 2011
...THE TORNADO WARNING FOR NORTHEASTERN YORK AND SOUTH CENTRAL POLK
COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
POSES A TORNADO THREAT. HOWEVER...A SEVERE THUNDERSTORM WARNING IS
STILL IN EFFECT FOR SOUTHEASTERN POLK AND EASTERN YORK COUNTIES UNTIL
945 PM CDT.
A TORNADO WATCH REMAINS IN EFFECT.
LAT...LON 4089 9767 4114 9769 4116 9764 4119 9759
4122 9754 4123 9748 4093 9737
TIME...MOT...LOC 0205Z 350DEG 26KT 4106 9753
$$
HEINLEINThe office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:59 PM CDT | Tornado Warning | GID | Merrick, Nance | 31 min |
| Aug 18, 8:22 PM CDT | Severe Thunderstorm Warning | GID | Merrick, Polk | 38 min |
| Aug 18, 8:27 PM CDT | Tornado Warning | GID | Merrick, Nance, Polk | 33 min |
| Aug 18, 9:02 PM CDT | Severe Thunderstorm Warning | GID | Polk, York | 43 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.