Alert archive / Nebraska / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 21, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Mar 28, 2007, 8:52 PM MDT for Arthur County, Keith County, McPherson 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
- Mar 28, 2007, 8:52 PM MDT (02:52 UTC)
- Expired
- Mar 28, 2007, 9:30 PM MDT
- In force
- 38 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
Counties Arthur County, NE, Keith County, NE, McPherson County, NE
The radar
The North Platte radar (KLNX), 91 km from the middle of the area, began a volume at 02:55 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 28, 8:32 PM MDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.9 hours before the alert went out and 83 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
- 1774 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 816 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 222 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 10.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLBF 290252 SVRLBF NEC005-101-117-290330- /O.NEW.KLBF.SV.W.0021.070329T0252Z-070329T0330Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 852 PM MDT WED MAR 28 2007 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN KEITH COUNTY IN SOUTHWEST NEBRASKA... EASTERN ARTHUR COUNTY IN WEST CENTRAL NEBRASKA... SOUTHWESTERN MCPHERSON COUNTY IN WEST CENTRAL NEBRASKA... * UNTIL 930 PM MDT(1030 PM CDT) * AT 850 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 9 MILES SOUTH OF BUCKTAIL LAKE...OR ABOUT 17 MILES SOUTHEAST OF ARTHUR...AND MOVING NORTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BUCKTAIL LAKE BY 900 PM MDT... DIAMOND BAR LAKE BY 1010 PM CDT... 8 MILES SOUTHEAST OF SAND BEACH LAKE BY 1025 PM CDT... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. LAT...LON 4167 10163 4122 10157 4120 10127 4167 10128 $$ 13
2 follow-up statements
000 WWUS53 KLBF 290311 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1011 PM CDT WED MAR 28 2007 NEC005-117-290321- /O.CAN.KLBF.SV.W.0021.000000T0000Z-070329T0330Z/ MCPHERSON NE-ARTHUR NE- 1011 PM CDT WED MAR 28 2007 ...THE SEVERE THUNDERSTORM WARNING FOR ARTHUR AND MCPHERSON COUNTIES IS CANCELLED... A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 AM CDT THURSDAY MORNING(300 AM MDT THURSDAY MORNING) FOR WESTERN NEBRASKA. LAT...LON 4138 10154 4122 10157 4120 10127 4137 10127 $$ NEC101-290330- /O.CON.KLBF.SV.W.0021.000000T0000Z-070329T0330Z/ KEITH NE- 911 PM MDT WED MAR 28 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM MDT FOR NORTHEASTERN KEITH COUNTY... AT 905 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. THIS STORM WAS LOCATED OVER EAST CENTRAL KEITH COUNTY...OR ABOUT 21 MILES EAST OF OGALLALA...MOVING NORTH AT 30 MPH. A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM MDT THURSDAY MORNING FOR WESTERN NEBRASKA. LAT...LON 4138 10154 4122 10157 4120 10127 4137 10127 $$ 13
000 WWUS53 KLBF 290327 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1026 PM CDT WED MAR 28 2007 NEC101-290336- /O.EXP.KLBF.SV.W.0021.000000T0000Z-070329T0330Z/ KEITH NE- 926 PM MDT WED MAR 28 2007 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KEITH COUNTY EXPIRES AT 930 PM MDT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM MDT THURSDAY MORNING FOR WESTERN NEBRASKA. THE SEVERE THUNDERSTORM WHICH HAD PROMPTED THE WARNING FOR NORTHEASTERN KEITH COUNTY HAS WEAKENED BELOW SEVERE LIMITS. AT THIS TIME HEAVY RAINFALL LOOKS TO BE THE MAIN ISSUE WITH ANY THUNDERSTORMS THAT CONTINUE THIS EVENING ACROSS KEITH COUNTY. LAT...LON 4138 10154 4122 10157 4120 10127 4137 10127 $$ 13
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 6:00 PM MDT | Severe Thunderstorm Warning | LBF | Chase | 30 min |
| Mar 28, 6:10 PM MDT | Tornado Warning | LBF | Cherry | 35 min |
| Mar 28, 6:25 PM MDT | Severe Thunderstorm Warning | LBF | Chase | 50 min |
| Mar 28, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith | 49 min |
| Mar 28, 6:41 PM MDT | Tornado Warning | LBF | Arthur, Keith | 49 min |
| Mar 28, 6:47 PM MDT | Tornado Warning | LBF | Cherry | 28 min |
| Mar 28, 6:53 PM MDT | Tornado Warning | LBF | Chase, Perkins | 52 min |
| Mar 28, 7:07 PM MDT | Tornado Warning | LBF | Arthur, Garden | 38 min |
| Mar 28, 7:26 PM MDT | Tornado Warning | LBF | Grant | 34 min |
| Mar 28, 7:43 PM MDT | Tornado Warning | LBF | Keith, Perkins | 47 min |
| Mar 28, 8:20 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 40 min |
| Mar 28, 8:23 PM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln, Perkins | 52 min |
| Mar 28, 8:26 PM MDT | Tornado Warning | LBF | Keith | 18 min |
| Mar 28, 8:56 PM MDT | Severe Thunderstorm Warning | LBF | Hayes | 49 min |
| Mar 28, 10:18 PM MDT | Flash Flood Warning | LBF | Chase, Hayes, Keith, Perkins | 6 hr |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2007Every severe thunderstorm warning in 2007
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.