Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 113, NWS North Platte, NE

July 31, 1993Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 31, 1993, 7:30 PM MDT for Cherry County, Nebraska. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Jul 31, 1993, 7:30 PM MDT (01:30 UTC)
Expired: Jul 31, 1993, 8:30 PM MDT
In force: 60 min
Issued by: NWS North Platte, NE
Area: Whole counties

County Cherry County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.5 hours before the alert went out and 163 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3718 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1217 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS1 KVTN 010130 RRA
SVRVTN
NEC031-010230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
830 PM CDT SAT JUL 31 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE NORTH CENTRAL PART OF NEBRASKA
      CHERRY

AT 830 PM CDT A SEVERE THUNDERSTORM WAS 40 MILES SOUTHWEST OF
VALENTINE...OR 20 MILES SOUTHEAST OF MERRIMAN NEBRASKA.  THE STORM
WAS MOVING SOUTHEAST AT 35 MILES AN HOUR.  THIS STORM PRODUCED
HAIL AROUND 2 INCHES IN DIAMETER NORTHEAST OF MERRIMAN.

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.

IF THREATENING WEATHER APPROACHES...TAKE SHELTER INSIDE A REINFORCED
BUILDING.  STAY AWAY FROM WINDOWS.  A BASEMENT...INTERIOR HALLWAY...
OR A ROOM ON THE LOWEST FLOOR IS THE SAFEST PLACE IN MOST BUILDINGS.
MOTORISTS SHOULD AVOID LOW WATER CROSSINGS.

EMANUEL

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, Jul 31, 6:28 PM MDT, 1 hour 2 minutes before

NEZ002-010115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
ISSUED BY SCOTTSBLUFF NE
628 PM MDT FRI JUL 31 1993

...SEVERE THUNDERSTORM WATCH UNTIL 1 A.M. CDT FOR CHERRY COUNTY...

AT 626 PM MDT RADAR INDICATED A STRONG THUNDERSTORM 55 MILES NORTHWEST
OF VALENTINE...OR 15 MILES NORTH OF MERRIMAN NEBRASKA.  THIS STORM WAS
MOVING TO THE SOUTHEAST AT 35 MILES AN HOUR AND SHOULD ENTER THE NORTH
PART OF CHERRY COUNTY BY 715 PM MDT / 815 PM CDT.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CHERRY COUNTY UNTIL 1 A.M.
CDT.  RESIDENTS OF CHERRY COUNTY SHOULD KEEP ALERT TO RAPIDLY CHANGING
WEATHER CONDITIONS DURING THE EVENING HOURS.
EMANUEL

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 31, 6:45 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	45 min
Jul 31, 8:29 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	31 min
Jul 31, 9:14 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, McPherson	46 min
Jul 31, 10:26 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Thomas	34 min
Jul 31, 10:32 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	28 min
Jul 31, 10:33 PM MDT	Severe Thunderstorm Warning	LBF	Grant	42 min
Jul 31, 11:19 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, McPherson	41 min
Aug 1, 1:32 AM MDT	Severe Thunderstorm Warning	LBF	Arthur	28 min
Aug 1, 1:41 AM MDT	Severe Thunderstorm Warning	LBF	Lincoln, McPherson	49 min
Aug 1, 2:03 AM MDT	Severe Thunderstorm Warning	LBF	Keith	42 min
Aug 1, 3:20 AM MDT	Severe Thunderstorm Warning	LBF	Perkins	40 min
Aug 1, 3:44 AM MDT	Severe Thunderstorm Warning	LBF	Hayes, Lincoln	61 min
Aug 1, 4:38 AM MDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	37 min
Aug 1, 4:50 AM MDT	Severe Thunderstorm Warning	LBF	Hitchcock, Red Willow	40 min
Aug 1, 4:50 AM MDT	Severe Thunderstorm Warning	LBF	Hayes	40 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1993 Every severe thunderstorm warning in 1993

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.