Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 176, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 3, 2012, 6:40 PM CDT for Brown County, Rock County, Nebraska. It was in force for 65 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
- Aug 3, 2012, 6:40 PM CDT (23:40 UTC)
- Expired
- Aug 3, 2012, 7:45 PM CDT
- In force
- 65 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brown County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 113 km from the middle of the area, began a volume at 23:41 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 3, 7:40 PM CDT | HAIL 1.75 | Long Pine, NE | SOME WINDOWS CRACKED FROM THE HAIL. |
| Aug 3, 7:50 PM CDT | HAIL 0.75 | 10 S Ainsworth, NE | ALSO RECORDED 1.30 INCHES OF RAINFALL |
| Aug 3, 7:55 PM CDT | HAIL 1 | 6 Se Long Pine, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.7 hours before the alert went out and 192 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
- 783 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 1209 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
522
WUUS53 KLBF 032340
SVRLBF
NEC017-149-040045-
/O.NEW.KLBF.SV.W.0176.120803T2340Z-120804T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
640 PM CDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA...
NORTHERN ROCK COUNTY IN NORTH CENTRAL NEBRASKA...
* UNTIL 745 PM CDT
* AT 637 PM CDT...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
KELLER PARK STATE RECREATION AREA...OR 8 MILES NORTH OF
AINSWORTH...AND MOVING EAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
KELLER PARK STATE RECREATION AREA AROUND 645 PM CDT.
BASSETT AROUND 715 PM CDT.
NEWPORT AROUND 740 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4278 9924 4246 9925 4237 10016 4259 10019
4272 10017 4277 9986 4275 9986 4274 9978
4273 9964 4272 9954 4278 9938 4278 9934
4280 9926
TIME...MOT...LOC 2340Z 274DEG 22KT 4267 9982
WIND...HAIL 60MPH 1.00IN
$$
ROBERG1 follow-up statement
802
WWUS53 KLBF 040010
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
710 PM CDT FRI AUG 3 2012
NEC017-149-040045-
/O.CON.KLBF.SV.W.0176.000000T0000Z-120804T0045Z/
BROWN NE-ROCK NE-
710 PM CDT FRI AUG 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN ROCK
AND NORTHERN BROWN COUNTIES UNTIL 745 PM CDT...
AT 704 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 12 MILES SOUTHEAST OF MILLS TO
AINSWORTH...MOVING EAST AT 20 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
LONG PINE AROUND 725 PM CDT.
BASSETT AROUND 740 PM CDT.
NEWPORT AROUND 745 PM CDT.
OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE HIGHWAY 137
MILE MARKER 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4278 9924 4246 9925 4237 10016 4259 10019
4272 10017 4277 9986 4275 9986 4274 9978
4273 9964 4272 9954 4278 9938 4278 9934
4280 9926
TIME...MOT...LOC 0010Z 277DEG 17KT 4278 9927 4258 9978
WIND...HAIL 60MPH 1.00IN
$$
ROBERGThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 7:00 PM CDT | Tornado Warning | LBF | Deuel | 30 min |
| Aug 2, 7:27 PM CDT | Severe Thunderstorm Warning | LBF | Deuel, Keith, Perkins | 30 min |
| Aug 2, 7:40 PM CDT | Tornado Warning | LBF | Deuel, Perkins | 25 min |
| Aug 2, 7:55 PM CDT | Severe Thunderstorm Warning | LBF | Perkins | 49 min |
| Aug 2, 8:04 PM CDT | Tornado Warning | LBF | Perkins | 26 min |
| Aug 2, 8:30 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 45 min |
| Aug 3, 1:19 AM CDT | Severe Thunderstorm Warning | LBF | Boyd, Brown, Holt, Keya Paha, Rock | 56 min |
| Aug 3, 5:53 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Keya Paha | 67 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.