Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 7, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at May 18, 1994, 8:15 PM MDT for Sheridan County, Nebraska. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- May 18, 1994, 8:15 PM MDT (02:15 UTC)
- Expired
- May 18, 1994, 8:45 PM MDT
- In force
- 30 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Sheridan County, NE
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 2.3 hours before the alert went out and 178 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
- 9 J/kg
- Mixed-layer CIN
- -456 J/kg
- Mixed-layer LCL
- 1465 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KBFF 190216 SVRCYS NEC161-190245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 815 PM MDT WED MAY 18 1994 THE NATIONAL WEATHER SERVICE IN SCOTTSBLUFF HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN THE NEBRASKA PANHANDLE ...NORTHERN SHERIDAN COUNTY ...SEVERE THUNDERSTORM WARNING FOR NORTHERN SHERIDAN EXTENDED UNTIL 845 PM MDT... ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE ENTIRE PANHANDLE UNTIL MIDNIGHT MDT... AT 815 MDT...A SEVERE THUNDERSTORM WAS LOCATED 20 MILES EAST OF CHADRON NEBRASKA MOVING NORTH AT 15 MPH. PERSONS IN NORTHERN SHERIDAN COUNTY OF THE NEBRASKA PANHANDLE SHOULD BE PREPARED FOR SEVERE WEATHER CONDITIONS IN THEIR AREA UNTIL 845 PM MDT. THIS WARNING REPLACES THE PREVIOUSLY ISSUED WARNING WHICH EXPIRED AT 815 PM MDT. PREPARE FOR LARGE HAIL...DAMAGING WIND...HEAVY RAIN...AND DANGEROUS LIGHTNING BY TAKING COVER. STAY AWAY FROM AREAS WHERE LOOSE ITEMS CAN BECOME DANGEROUS FLYING DEBRIS. RENZ
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.
In the hours before
Special weather statement, May 18, 5:15 PM MDT, 3 hours before
NEZ001>004-019>022-054>056-190015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 515 PM MDT WED MAY 18 1994 ...THUNDERSTORMS RUMBLE ACROSS THE PANHANDLE... AT 510 PM MDT THUNDERSTORMS WERE SCATTERED ACROSS PARTS OF THE NEBRASKA PANHANDLE. THE STRONGEST STORM WAS LOCATED 45 MILES EAST OF CHADRON NEBRASKA. ADDITIONAL STORMS WERE LOCATED 40 MILES EAST OF ALLIANCE AND ALSO 30 MILES WEST OF SIDNEY NEBRASKA. THESE STORMS WERE ALL MOVING NORTH AT 25 MPH. PERSONS IN THE PANHANDLE SHOULD AWARE OF THE THUNDERSTORM ACTIVITY AROUND THE PANHANDLE AND BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES AS SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...STRONG GUSTY WINDS AND DEADLY LIGHTNING THROUGH 615 PM MDT. RENZ
Special weather statement, May 18, 5:15 PM MDT, 3 hours before
NEZ001>004-019>022-054>056-190015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 515 PM MDT WED MAY 18 1994 ...THUNDERSTORMS RUMBLE ACROSS THE PANHANDLE... AT 510 PM MDT THUNDERSTORMS WERE SCATTERED ACROSS PARTS OF THE NEBRASKA PANHANDLE. THE STRONGEST STORM WAS LOCATED 45 MILES EAST OF CHADRON NEBRASKA. ADDITIONAL STORMS WERE LOCATED 40 MILES EAST OF ALLIANCE AND ALSO 30 MILES WEST OF SIDNEY NEBRASKA. THESE STORMS WERE ALL MOVING NORTH AT 25 MPH. PERSONS IN THE PANHANDLE SHOULD AWARE OF THE THUNDERSTORM ACTIVITY AROUND THE PANHANDLE AND BE PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES AS SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...STRONG GUSTY WINDS AND DEADLY LIGHTNING THROUGH 615 PM MDT. RENZ
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 6:09 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 51 min |
| May 18, 6:28 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 62 min |
| May 18, 7:04 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 56 min |
| May 18, 7:24 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 66 min |
| May 18, 7:43 PM MDT | Severe Thunderstorm Warning | CYS | Sheridan | 32 min |
| May 18, 8:42 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sheridan | 34 min |
| May 19, 4:41 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 46 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994
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.