Alert archive / Nebraska / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 116, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Sep 7, 2006, 3:02 PM MDT for Cheyenne County, Nebraska. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 7, 2006, 3:02 PM MDT (21:02 UTC)
- Expired
- Sep 7, 2006, 3:33 PM MDT
- In force
- 31 min
- Issued by
- NWS Cheyenne, WY
- Area
- Counties, with a storm outline in the text
County Cheyenne County, NE
The radar
The Cheyenne radar (KCYS), 152 km from the middle of the area, began a volume at 21:05 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, 9.0 hours before the alert went out and 201 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
- 84 J/kg
- Mixed-layer CIN
- -180 J/kg
- Mixed-layer LCL
- 1483 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 7, 2:26 PM MDT, 36 minutes earlier.
Area forecast discussion, Sep 7, 2:26 PM MDT, 36 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 226 PM MDT THU SEP 7 2006 .SHORT TERM...A COOLER AND WETTER PATTERN WILL AFFECT THE CWA THROUGH SATURDAY. MODELS THROUGH THAT TIME ARE NOW MORE CONSISTENT AND DEVELOP AN UPPER LOW OVER NORTHERN COLORADO AND SOUTHERN WYOMING FRIDAY NIGHT AND SATURDAY. AT THE SAME TIME...A SURFACE COLD FRONT CURRENTLY MOVING INTO NORTHERN MONTANA AND NORTH DAKOTA WILL BE PUSHED WEST. THE FRONT WILL AT THIS TIME SHOULD MOVE THROUGH THE EAST PART OF THE CWA FRIDAY AND THROUGH THE REST OF THE CWA FRIDAY NIGHT. THE SYNOPTIC LIFT FROM BOTH THE UPPER LOW AND BOUNDARY LAYER UPSLOPE WILL PRODUCE CLOUDY SKIES AND A GOOD CHANCE OF SHOWERS ACROSS THE CWA AND MAINLY LATE DAY THUNDERSTORMS STARTING FRIDAY AFTERNOON. MODEL QPF...ESPECIALLY THE NAM WOULD INDICATE OVER AN INCH OF RAIN IN PARTS OF THE SOUTHERN CWA FRIDAY AFTERNOON THROUGH SATURDAY. HAVE ALSO CONTINUED THE TREND OF LOWERING HIGH TEMPERATURES FOR BOTH DAYS. .LONG TERM...SATURDAY NIGHT THROUGH THURSDAY. SHIELD OF UPSLOPE GENERATED RAIN MOVES EASTWARD SATURDAY EVENING. THE PATTERN CONTINUES TO SUGGEST AUTUMN THROUGH THE REST OF THE EXTENDED. SHOULD BE SOME LEFTOVER PRECIP INTO THE EVENING HOURS...BUT WILL HAVE TO MONITOR MODEL TIMING ADJUSTMENTS IN SUBSEQUENT FORECASTS. 12Z RUN OF THE GFS IS A LITTLE DIFFERENT FROM THE PREVIOUS RUN REGARDING THE SYSTEM ON TUESDAY. 00Z RUN KEPT PRECIP IN COLORADO... BUT NEW RUN DEVELOPS AN UPPER CIRCULATION SOUTH OF THE BLACK HILLS AND DRAWS PRECIP MUCH FARTHER NORTH. NEXT SYSTEM ON THE HORIZON IS A STRONG COLD FRONT DIVING SOUTH LATE IN THE WEEK...BUT NEITHER THE ECMWF OR GFS INDICATING IT WILL HAVE AN IMPACT BY THURSDAY OTHER THAN POSSIBLY AND INCREASE IN WINDS. POMEROY && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM...WEILAND LONG TERM....POMEROY
Hazardous weather outlook, Sep 7, 10:30 AM MDT, 4 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1030 AM MDT THU SEP 7 2006 NEZ001>003-019-WYZ059>070-081630- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-CONVERSE-NIOBRARA- SOUTHWEST CARBON-NORTH CARBON-SNOWY RANGE-NORTH LARAMIE RANGE- LARAMIE VALLEY-LARAMIE RANGE-PLATTE-GOSHEN-CHEYENNE FOOTHILLS- PINE BLUFFS- 1030 AM MDT THU SEP 7 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND SOUTHEAST WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT A WIDELY SCATTERED COVERAGE OF THUNDERSTORMS WILL SPREAD OVER MUCH OF SOUTHEAST WYOMING AND THE NORTHERN NEBRASKA PANHANDLE THIS AFTERNOON. THE ACTIVITY WILL PERSIST THROUGH THE EARLY EVENING BEFORE WEAKENING AND ENDING. THE STORMS WILL NOT BE STRONG AS THE ATMOSPHERE IS NOT MOIST AND ONLY MARGINALLY UNSTABLE. LIGHT RAINFALL AND WIND GUSTS TO 40 MPH CAN BE EXPECTED WITH THE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY EXPECT UPSLOPE FLOW ACROSS SOUTHEAST WYOMING AND NEBRASKA PANHANDLE AS A SURFACE LOW DEVELOPS OVER COLORADO. THIS WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO THE AREA ON FRIDAY AND SATURDAY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. NEZ020-021-054-055-081630- BANNER-MORRILL-KIMBALL-CHEYENNE- 1030 AM MDT THU SEP 7 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE. .DAY ONE...THIS AFTERNOON AND TONIGHT A SCATTERED COVERAGE OF THUNDERSTORMS WILL DEVELOP OVER MUCH OF SOUTHERN NEBRASKA PANHANDLE THIS AFTERNOON. THE ACTIVITY WILL PERSIST THROUGH THE EARLY EVENING BEFORE WEAKENING AND ENDING. SOME OF THE STORMS WILL BE STRONG AND PRODUCE SMALL HAIL... A PERIOD OF MODERATE RAINFALL AND WIND GUSTS TO 45 MPH. ALL OF THE ACTIVITY WILL MOVE TO THE SOUTHEAST AT 10 MPH. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY EXPECT UPSLOPE FLOW ACROSS THE NEBRASKA PANHANDLE AS A SURFACE LOW DEVELOPS OVER COLORADO. THIS WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS TO THE AREA ON FRIDAY AND SATURDAY. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. WEILAND
In the hours before
Local storm report, Sep 7, 12:52 PM MDT, 2 hours 10 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 7:37 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 22 min |
| Sep 6, 9:45 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 59 min |
| Sep 6, 10:32 PM MDT | Severe Thunderstorm Warning | CYS | Banner | 30 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2006Every severe thunderstorm warning in 2006
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.