Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 40, NWS Hastings, NE

May 11, 2002Furnas County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 11, 2002, 1:27 AM CDT for Furnas County, Nebraska. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 11, 2002, 1:27 AM CDT (06:27 UTC)
Expired
May 11, 2002, 2:00 AM CDT
In force
33 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Furnas County, NE

The radar

The Grand Island radar (KUEX), 123 km from the middle of the area, began a volume at 06:28 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 6.5 hours before the alert went out and 118 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 00:00Z on 2002-05-11Temperature 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 00:00Z on 2002-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939587897Sfc1 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
1882 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
342 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 110627
SVRGRI
NEC065-110700-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
126 AM CDT SAT MAY 11 2002

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FURNAS COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 200 AM CDT

* AT 123 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER HENDLEY...OR ABOUT 22 MILES NORTH OF   
  NORTON KANSAS...MOVING NORTHEAST AT 70 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  EDISON AT 135 AM CDT

PEOPLE IN FURNAS COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.

THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL AS LARGE AS GOLF 
BALLS.

LAT...LON 4034 10006 4003 10004 4001 9964 4036 9965

NNNN
SCHURR

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 Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 11, 1:14 AM CDT, 13 minutes earlier.

Area forecast discussion, May 11, 1:14 AM CDT, 13 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
114 AM CDT SAT MAY 11 2002

...ONGOING CONVECTION MAIN CONCERN...

STORMS ARE BEGINNING TO FILL IN OVER CWA THIS MORNING. STORMS
APPROACHING FROM THE SW AT ABOUT 40KTS OR SO. STORMS FEEDING ON
RETURN OF LOW LEVEL MOISTURE TO THE AREA. 24HR CHANGE OF SFC DEW
POINTS INDICATE A RISE OF ABOUT 30 DEGREES OVER NORTH CENTRAL AND
NORTHWEST KS. PCPN SHOULD CONTINUE THROUGH MOST OF THE DAY AND WILL
CONTINUE CATEGORICAL POPS TODAY. LATER THIS AFTERNOON..SFC LOW
SHIFTS EAST AND WINDS ACROSS THE CWA SWITCH TO THE NW. TEMPS MAY
NOT RISE ALL THAT MUCH OVER NRN SECTIONS OF THE CWA. PCPN CHANCES
SHIFT SOUTHWARD TONIGHT. WILL CARRY SLGT POPS MID SECTIONS AND
HIGHER POPS SOUTH. NEXT CHANCE FOR PCPN COMES MID WEEK. NO MAJOR
CHANGES TO THE EXTENDED.

.GID...NONE.

DEE

The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 2:15 AM CDTSevere Thunderstorm WarningGIDHarlan45 min
May 11, 2:29 AM CDTSevere Thunderstorm WarningGIDClay46 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm warning in 2002

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.