Alert archive / Nebraska / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 174, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 3, 2012, 1:19 AM CDT for 5 counties in Nebraska. It was in force for 56 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 3, 2012, 1:19 AM CDT (06:19 UTC)
- Expired
- Aug 3, 2012, 2:15 AM CDT
- In force
- 56 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 80.0 mph
Counties Boyd County, NE, Brown County, NE, Holt County, NE, Keya Paha County, NE, Rock County, NE
The radar
The North Platte radar (KLNX), 140 km from the middle of the area, began a volume at 06:22 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 00:00Z, 6.3 hours before the alert went out and 217 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
- 1601 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 2010 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
521 WUUS53 KLBF 030619 SVRLBF NEC015-017-089-103-149-030715- /O.NEW.KLBF.SV.W.0174.120803T0619Z-120803T0715Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 119 AM CDT FRI AUG 3 2012 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN BOYD COUNTY IN NORTH CENTRAL NEBRASKA... NORTHERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA... NORTHWESTERN HOLT COUNTY IN NORTH CENTRAL NEBRASKA... KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA... NORTHERN ROCK COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 215 AM CDT * AT 117 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES NORTHWEST OF BURTON TO 14 MILES SOUTH OF SMITH FALLS STATE PARK...AND MOVING EAST AT 45 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... NORTH RIVER TRAIL AROUND 125 AM CDT. BOBCAT STATE WILDLIFE MANAGEMENT AREA...SPRINGVIEW AND BURTON AROUND 140 AM CDT. THOMAS CREEK STATE WILDLIFE MANAGEMENT AREA AND MILLS AROUND 150 AM CDT. KELLER PARK STATE RECREATION AREA AROUND 155 AM CDT. NAPER AROUND 210 AM CDT. OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE HIGHWAY 183 MILE MARKER 220...HIGHWAY 12 MILE MARKER 40...HIGHWAY 137 MILE MARKER 20...HIGHWAY 12 MILE MARKER 90 AND 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. THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4300 9875 4262 9933 4267 10019 4301 9991 TIME...MOT...LOC 0619Z 270DEG 37KT 4304 9973 4269 10025 WIND...HAIL 80MPH 1.00IN $$ POWER
2 follow-up statements
188 WWUS53 KLBF 030648 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 148 AM CDT FRI AUG 3 2012 NEC015-017-089-103-149-030715- /O.CON.KLBF.SV.W.0174.000000T0000Z-120803T0715Z/ BOYD NE-BROWN NE-HOLT NE-KEYA PAHA NE-ROCK NE- 148 AM CDT FRI AUG 3 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN ROCK...KEYA PAHA...NORTHWESTERN HOLT...NORTHERN BROWN AND NORTHWESTERN BOYD COUNTIES UNTIL 215 AM CDT... AT 145 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTH OF MILLS TO BOBCAT STATE WILDLIFE MANAGEMENT AREA...MOVING EAST AT 45 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... KELLER PARK STATE RECREATION AREA AND MILLS AROUND 155 AM CDT. NAPER AROUND 210 AM CDT. OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE HIGHWAY 137 MILE MARKER 20...HIGHWAY 12 MILE MARKER 90 AND HIGHWAY 137 MILE MARKER 10. PRECAUTIONARY/PREPAREDNESS ACTIONS... THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4300 9875 4262 9933 4267 10019 4301 9991 TIME...MOT...LOC 0648Z 270DEG 37KT 4304 9932 4269 9984 WIND...HAIL 80MPH <.75IN $$ POWER
537 WWUS53 KLBF 030717 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 217 AM CDT FRI AUG 3 2012 NEC015-017-089-103-149-030727- /O.EXP.KLBF.SV.W.0174.000000T0000Z-120803T0715Z/ BOYD NE-BROWN NE-HOLT NE-KEYA PAHA NE-ROCK NE- 217 AM CDT FRI AUG 3 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ROCK...KEYA PAHA... NORTHWESTERN HOLT...NORTHERN BROWN AND NORTHWESTERN BOYD COUNTIES HAS EXPIRED... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4300 9875 4262 9933 4267 10019 4301 9991 TIME...MOT...LOC 0648Z 270DEG 37KT 4304 9932 4269 9984 $$ POWER
The 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, 5:53 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Keya Paha | 67 min |
| Aug 3, 6:40 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 65 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.