Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 12, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 12, 2012, 4:12 PM MDT for Arthur County, Keith County, Nebraska. It was in force for 33 min. 2 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 12, 2012, 4:12 PM MDT (22:12 UTC)
- Expired
- Apr 12, 2012, 4:45 PM MDT
- In force
- 33 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 50.0 mph
Counties Arthur County, NE, Keith County, NE
The radar
The North Platte radar (KLNX), 112 km from the middle of the area, began a volume at 22:14 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 12, 4:15 PM MDT | HAIL 1 | 6 Nw Kingsley Dam, NE | |
| Apr 12, 4:17 PM MDT | HAIL 1.75 | 4 Nw Kingsley Dam, 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, 10.2 hours before the alert went out and 99 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
- 665 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
099 WUUS53 KLBF 122212 SVRLBF NEC005-101-122245- /O.NEW.KLBF.SV.W.0012.120412T2212Z-120412T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 412 PM MDT THU APR 12 2012 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA... NORTH CENTRAL KEITH COUNTY IN SOUTHWEST NEBRASKA... * UNTIL 445 PM MDT * AT 409 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR LEMOYNE...OR 11 MILES NORTH OF OGALLALA...AND MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ARTHUR AROUND 440 PM MDT. OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY 61 MILE MARKER 110. 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 4159 10176 4151 10141 4117 10174 4128 10192 TIME...MOT...LOC 2212Z 213DEG 30KT 4130 10178 WIND...HAIL <50MPH 1.75IN $$ MASEK
3 follow-up statements
094 WWUS53 KLBF 122223 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 423 PM MDT THU APR 12 2012 NEC005-101-122245- /O.CON.KLBF.SV.W.0012.000000T0000Z-120412T2245Z/ KEITH NE-ARTHUR NE- 423 PM MDT THU APR 12 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ARTHUR AND NORTH CENTRAL KEITH COUNTIES UNTIL 445 PM MDT... AT 418 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED NEAR LEMOYNE...OR 9 MILES NORTH OF OGALLALA... MOVING NORTHEAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTH CENTRAL KEITH AND SOUTHEASTERN ARTHUR COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4130 10182 4159 10176 4151 10141 4117 10174 TIME...MOT...LOC 2223Z 232DEG 22KT 4128 10170 WIND...HAIL <50MPH 1.75IN $$ MASEK
885 WWUS53 KLBF 122234 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 434 PM MDT THU APR 12 2012 NEC005-101-122245- /O.CON.KLBF.SV.W.0012.000000T0000Z-120412T2245Z/ KEITH NE-ARTHUR NE- 434 PM MDT THU APR 12 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ARTHUR AND NORTH CENTRAL KEITH COUNTIES UNTIL 445 PM MDT... AT 432 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 7 MILES NORTH OF KEYSTONE...OR 14 MILES NORTH OF OGALLALA...MOVING NORTHEAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTH CENTRAL KEITH AND SOUTHEASTERN ARTHUR COUNTIES. 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. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4139 10175 4159 10176 4151 10141 4127 10164 TIME...MOT...LOC 2234Z 225DEG 25KT 4133 10162 WIND...HAIL <50MPH 1.75IN $$ MASEK
075 WWUS53 KLBF 122247 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 447 PM MDT THU APR 12 2012 NEC005-101-122255- /O.EXP.KLBF.SV.W.0012.000000T0000Z-120412T2245Z/ KEITH NE-ARTHUR NE- 447 PM MDT THU APR 12 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ARTHUR AND NORTH CENTRAL KEITH COUNTIES HAS BEEN REISSUED... PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER INFORMATION. LAT...LON 4139 10175 4159 10176 4151 10141 4127 10164 TIME...MOT...LOC 2234Z 225DEG 25KT 4133 10162 $$ MASEK
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 3:36 PM MDT | Severe Thunderstorm Warning | LBF | Deuel, Garden | 39 min |
| Apr 12, 3:39 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith | 38 min |
| Apr 12, 3:43 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 47 min |
| Apr 12, 4:44 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith, McPherson | 31 min |
| Apr 12, 5:13 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Perkins | 47 min |
| Apr 12, 5:14 PM MDT | Severe Thunderstorm Warning | LBF | McPherson | 46 min |
| Apr 12, 5:55 PM MDT | Tornado Warning | LBF | Perkins | 35 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.