Alert archive / Nebraska / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 5, 2009, 7:45 PM MDT for Cheyenne County, Morrill County, Nebraska. It was in force for 45 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
- Jun 5, 2009, 7:45 PM MDT (01:45 UTC)
- Expired
- Jun 5, 2009, 8:30 PM MDT
- In force
- 45 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Cheyenne County, NE, Morrill County, NE
The radar
The Cheyenne radar (KCYS), 177 km from the middle of the area, began a volume at 01:46 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 |
|---|---|---|---|
| Jun 5, 7:45 PM MDT | HAIL 1.75 | 9 S Broadwater, NE | LOTS OF HAIL AND RAIN VARIED FROM PEA TO GOLFBALL. |
| Jun 5, 8:08 PM MDT | HAIL 2 | 13 E Dalton, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 5, 2:48 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.8 hours before the alert went out and 183 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
- 2392 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS55 KCYS 060145
SVRCYS
NEC033-123-060230-
/O.NEW.KCYS.SV.W.0021.090606T0145Z-090606T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
745 PM MDT FRI JUN 5 2009
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN CHEYENNE COUNTY IN THE PANHANDLE OF NEBRASKA...
SOUTHEASTERN MORRILL COUNTY IN THE PANHANDLE OF NEBRASKA...
* UNTIL 830 PM MDT
* AT 743 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
CAMP LAKE...OR 24 MILES NORTH OF SIDNEY...AND MOVING EAST AT 16
MPH.
* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF
NORTHEASTERN CHEYENNE AND SOUTHEASTERN MORRILL COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
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.
HAIL UP TO I INCH IN DIAMETER HAS BEEN REPORTED IN THE BROADWATER
AREA WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...SEEK
SAFE SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT FRIDAY EVENING
FOR CENTRAL NEBRASKA AND SOUTHEASTERN WYOMING.
LAT...LON 4163 10264 4145 10264 4131 10261 4140 10295
4157 10297
TIME...MOT...LOC 0145Z 281DEG 14KT 4148 10289
$$2 follow-up statements
000
WWUS55 KCYS 060206
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
806 PM MDT FRI JUN 5 2009
NEC033-123-060230-
/O.CON.KCYS.SV.W.0021.000000T0000Z-090606T0230Z/
CHEYENNE NE-MORRILL NE-
806 PM MDT FRI JUN 5 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM MDT
FOR SOUTHEASTERN MORRILL AND NORTHEASTERN CHEYENNE COUNTIES...
AT 805 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR CAMP LAKE...OR 25 MILES NORTHEAST OF SIDNEY...MOVING EAST AT 16
MPH. ROTATION CONTINUES TO BE REPORTED WITH THIS STORM...BUT NO
FUNNEL CLOUDS OR TORNADOES HAVE BEEN CONFIRMED.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OFEXTREME NORTHEASTERN CHEYENNE AND SOUTHEASTERN
MORRILL COUNTIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4163 10264 4145 10264 4131 10261 4140 10295
4157 10297
TIME...MOT...LOC 0205Z 281DEG 14KT 4147 10278
$$000
WWUS55 KCYS 060228
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
828 PM MDT FRI JUN 5 2009
NEC033-123-060237-
/O.EXP.KCYS.SV.W.0021.000000T0000Z-090606T0230Z/
CHEYENNE NE-MORRILL NE-
828 PM MDT FRI JUN 5 2009
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORRILL AND
NORTHEASTERN CHEYENNE COUNTIES EXPIRES AT 830 PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED EAST INTO GARDEN
COUNTY NEBRASKA. HAIL OF 1 TO 2 INCHES IN DIAMETER WAS REPORTED IN
THE FAR NORTHEAST PART OF CHEYENNE COUNTY WITH THIS STORM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM FOR THE AREA.
LAT...LON 4163 10264 4145 10264 4131 10261 4140 10295
4157 10297
TIME...MOT...LOC 0227Z 281DEG 14KT 4145 10267
$$The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 6:07 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 53 min |
| Jun 5, 6:16 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill | 22 min |
| Jun 5, 7:00 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 45 min |
| Jun 5, 10:01 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 59 min |
| Jun 5, 10:39 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 51 min |
| Jun 5, 11:00 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Morrill, Sioux | 60 min |
| Jun 5, 11:43 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 42 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2009Every severe thunderstorm warning in 2009
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.