Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 10, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Apr 12, 2012, 3:39 PM MDT for Arthur County, Keith County, Nebraska. It was in force for 38 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
- Apr 12, 2012, 3:39 PM MDT (21:39 UTC)
- Expired
- Apr 12, 2012, 4:17 PM MDT
- In force
- 38 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Arthur County, NE, Keith County, NE
The radar
The North Platte radar (KLNX), 125 km from the middle of the area, began a volume at 21:41 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.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.7 hours before the alert went out and 119 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.
270
WUUS53 KLBF 122139
SVRLBF
NEC005-101-122230-
/O.NEW.KLBF.SV.W.0010.120412T2139Z-120412T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
339 PM MDT THU APR 12 2012
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA...
NORTHWESTERN KEITH COUNTY IN SOUTHWEST NEBRASKA...
* UNTIL 430 PM MDT
* AT 337 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR OTTER CREEK CAMPGROUND...OR 18 MILES
NORTHWEST OF OGALLALA...AND MOVING NORTH AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
JENSEN LAKE AROUND 415 PM MDT.
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 4139 10201 4140 10198 4165 10199 4174 10199
4174 10172 4130 10184 4131 10201
TIME...MOT...LOC 2139Z 183DEG 30KT 4136 10191
WIND...HAIL <50MPH 1.00IN
$$
MASEK2 follow-up statements
019
WWUS53 KLBF 122152
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
352 PM MDT THU APR 12 2012
NEC005-101-122230-
/O.CON.KLBF.SV.W.0010.000000T0000Z-120412T2230Z/
KEITH NE-ARTHUR NE-
352 PM MDT THU APR 12 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN ARTHUR
AND NORTHWESTERN KEITH COUNTIES UNTIL 430 PM MDT...
AT 350 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 9 MILES NORTH OF OTTER CREEK CAMPGROUND...OR 15
MILES SOUTHWEST OF ARTHUR...MOVING NORTH AT 30 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
JENSEN LAKE AROUND 420 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4139 10201 4140 10198 4165 10199 4174 10199
4174 10172 4130 10184 4131 10201
TIME...MOT...LOC 2152Z 184DEG 28KT 4145 10192
WIND...HAIL <50MPH 1.00IN
$$
MASEK613
WWUS53 KLBF 122217
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
417 PM MDT THU APR 12 2012
NEC005-101-122226-
/O.CAN.KLBF.SV.W.0010.000000T0000Z-120412T2230Z/
KEITH NE-ARTHUR NE-
417 PM MDT THU APR 12 2012
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ARTHUR AND
NORTHWESTERN KEITH COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH
CENTRAL KEITH AND SOUTHEAST ARTHUR UNTIL 445 MDT.
LAT...LON 4139 10201 4140 10198 4165 10199 4174 10199
4174 10172 4130 10184 4131 10201
TIME...MOT...LOC 2216Z 184DEG 28KT 4164 10190
$$
MASEKThe 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, 3:43 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 47 min |
| Apr 12, 4:12 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith | 33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.