Alert archive / Nebraska / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 37, NWS North Platte, NE

July 9, 1987Cherry County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Jul 9, 1987, 5:20 PM MDT for Cherry County, Nebraska. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1987, 5:20 PM MDT (23:20 UTC)
Expired
Jul 9, 1987, 6:00 PM MDT
In force
40 min
Issued by
NWS North Platte, NE
Area
Whole counties

County Cherry County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.3 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 1987-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 12:00Z on 1987-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2021 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
125 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 9, 3:55 PM MDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
455 PM CDT THU JUL 09 1987

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR SOUTHWEST AND
MUCH OF CENTRAL NEBRASKA UNTIL 11 PM CDT...OR 10 PM MDT.

AT 450 PM CDT A FEW THUNDERSTORMS WERE LOCATED ON THE NEBRASKA-
COLORADO BORDER WEST OF GRANT...IMPERIAL AND BENKLEMAN.

AS YET...NO SEVERE THUNDERSTORMS HAVE BEEN REPORTED BUT THE WATCH
CONTINUES...

BRITTON
Special weather statement, Jul 9, 5:04 PM MDT, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
5PM MDT THU JUL 09 1987

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR SOUTHWEST AND
MUCH OF CENTRAL NEBRASKA UNTIL 11 PM CDT...OR 10 PM MDT.

AT 450 PM MDT SHOWERS AND THUNDERSTORMS CONTINUED TO MOVE INTO
SOUTHWEST AND NORTHCENTRAL NEBRASKA WITH THE HEAVIEST STORMS
JUST NORTHWEST OF OGALLALA NEBRASKA AND NEAR VENANGO NEBRASKA
WHICH IS 65 MILES SOUTHWEST OF NORTH PLATTE NEBRASKA.
THESE STORMS WERE MOVING NORTHEAST AT 20 MPH AND COULD PRODUCE
STRONG WINDS...HAIL AND HEAVY RAIN AS THEY CONTINUE TO MOVE
ACROSS OUR REGION DURING NEXT FEW HOURS.

CARPER
Special weather statement, Jul 9, 5:17 PM MDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE VALENTINE NE
605 PM CDT THU JUL 9 1987

AT 555 PM CDT RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
EXTENDING FROM 50 MILES SOUTH OF PHILLIP SOUTH DAKOTA TO JUST
NORTHWEST OF VALENTINE NEBRASKA. THESE THUNDERSTORMS WERE MOVING
SOUTHEAST AT 20 MPH.

BRIEF HEAVY RAIN...STRONG GUSTY WINDS...DANGERIOUS LIGHTNING AND HAIL
ARE POSSIBLE WITH THESE STORMS...WHICH WILL BE OVER NORTHEAST CHERRY
COUNTY OF NORTH CENTRAL NEBRASKA UNTIL 730 PM CDT THIS EVENING.
RODDA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 5:51 PM MDTSevere Thunderstorm WarningLBFGrant, Hooker54 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1987Every severe thunderstorm warning in 1987

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.