Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 86, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 18, 2012, 7:25 PM MDT for Arthur County, Grant County, Nebraska. It was in force for 50 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
- May 18, 2012, 7:25 PM MDT (01:25 UTC)
- Expired
- May 18, 2012, 8:15 PM MDT
- In force
- 50 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Arthur County, NE, Grant County, NE
The radar
The North Platte radar (KLNX), 108 km from the middle of the area, began a volume at 01:25 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 |
|---|---|---|---|
| May 18, 7:28 PM MDT | HAIL 1 | 9 Sw Arthur, NE | |
| May 18, 7:30 PM MDT | HAIL 0.88 | 6 Sw Arthur, NE | A FEW HAILSTONES UP TO NICKEL SIZE...SOME GUSTY WINDS TO 40 OR 50 MPH AND JUST A LITTLE RAINFALL. |
| May 18, 7:35 PM MDT | HAIL 0.75 | 4 Sw Arthur, 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 00:00Z, 1.4 hours before the alert went out and 118 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
- 867 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 3002 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
681 WUUS53 KLBF 190125 SVRLBF NEC005-075-190215- /O.NEW.KLBF.SV.W.0086.120519T0125Z-120519T0215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 725 PM MDT FRI MAY 18 2012 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA... SOUTH CENTRAL GRANT COUNTY IN WEST CENTRAL NEBRASKA... * UNTIL 815 PM MDT * AT 720 PM MDT...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 HAYTHORN LAKE...OR 8 MILES SOUTHWEST OF ARTHUR...AND MOVING NORTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... HAYTHORN LAKE AROUND 730 PM MDT. ARTHUR AROUND 740 PM MDT. JENSEN LAKE AROUND 800 PM MDT. OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE HIGHWAY 61 MILE MARKER 130 AND HIGHWAY 61 MILE MARKER 140. 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 4183 10191 4178 10159 4143 10172 4146 10196 TIME...MOT...LOC 0125Z 191DEG 12KT 4154 10182 WIND...HAIL 60MPH 1.00IN $$ POWER
2 follow-up statements
698 WWUS53 KLBF 190148 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 748 PM MDT FRI MAY 18 2012 NEC005-075-190215- /O.CON.KLBF.SV.W.0086.000000T0000Z-120519T0215Z/ GRANT NE-ARTHUR NE- 748 PM MDT FRI MAY 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL ARTHUR AND SOUTH CENTRAL GRANT COUNTIES UNTIL 815 PM MDT... AT 745 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR JENSEN LAKE...OR 6 MILES WEST OF ARTHUR...MOVING NORTH AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... JENSEN LAKE AROUND 800 PM MDT. OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE HIGHWAY 61 MILE MARKER 130 AND HIGHWAY 61 MILE MARKER 140. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4155 10195 4183 10191 4178 10159 4151 10169 TIME...MOT...LOC 0147Z 191DEG 12KT 4161 10180 WIND...HAIL 60MPH 1.00IN $$ POWER
512 WWUS53 KLBF 190215 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 915 PM CDT FRI MAY 18 2012 NEC005-075-190225- /O.EXP.KLBF.SV.W.0086.000000T0000Z-120519T0215Z/ GRANT NE-ARTHUR NE- 815 PM MDT FRI MAY 18 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ARTHUR AND SOUTH CENTRAL GRANT COUNTIES HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4155 10195 4183 10191 4178 10159 4151 10169 TIME...MOT...LOC 0215Z 191DEG 12KT 4170 10178 $$ POWER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:52 AM MDT | Severe Thunderstorm Warning | LBF | McPherson | 38 min |
| May 19, 8:32 AM MDT | Severe Thunderstorm Warning | LBF | Hooker, Logan, McPherson, Thomas | 43 min |
| May 19, 12:16 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Frontier, Hayes | 44 min |
| May 19, 12:42 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln | 31 min |
| May 19, 12:58 PM MDT | Severe Thunderstorm Warning | LBF | Frontier, Hayes, Lincoln | 47 min |
| May 19, 1:39 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 51 min |
| May 19, 2:54 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 51 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.