Alert archive / Nebraska / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 72, NWS Hastings, NE

May 22, 1999Merrick County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at May 22, 1999, 5:31 PM CDT for Merrick County, Nebraska. It was in force for 44 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
May 22, 1999, 5:31 PM CDT (22:31 UTC)
Expired
May 22, 1999, 6:15 PM CDT
In force
44 min
Issued by
NWS Hastings, NE
Area
Whole counties

County Merrick County, NE

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 22, 4:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.5 hours before the alert went out and 140 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, Omaha, NE at 12:00Z on 1999-05-22Temperature 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, Omaha, NE at 12:00Z on 1999-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.19395878Sfc1 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
1628 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
95 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.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at May 22, 2:35 PM CDT, 2 hours 56 minutes earlier.

Area forecast discussion, May 22, 2:35 PM CDT, 2 hours 56 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
235 PM CDT SAT MAY 22 1999

...STRONG CONVECTION THIS EVENING...THEN FAIR WX UNTIL AT LEAST
WED...

FORECAST APPEARS QUITE STRAIGHT FORWARD WITH THE MAIN CHALLENGES THE
TIMING OF THE COLD FRONT PASSAGE TONIGHT AND END OF PRECIPITATION.

SEVERE THREAT DEFINED WELL WITH CAPES GREATER THAN 2000 IN LOW
LEVEL MOISTURE FIELD EAST OF FRONT DEPICTED ON ETA AND WITH SHARP
MODIFIED LBF MORNING SOUNDING. EXPECT WATCHES ALONG ENTIRE LENGTH OF
FRONT ACROSS NEBRASKA AND KANSAS WITH MORE UNSTABLE AIR MASS OVER
KANSAS.

COLD FRONT WAS JUST EAST OF A MHE-ANW-OGA LINE WITH 18Z PRESSURE
RISES OF 2 MB AT RAP AND GCC.  ONLY MINOR DIFFERENCES NOTICED
IN MODELS WITH NW FLOW H5 S/W DRIVING FRONT NW-SE ACRS CWA. PREFER
NGM/S SLIGHTLY STRONGER WIND FIELD ESPECIALLY IN FRONTS WAKE. FRONT
SHOULD CROSS GRI & HSI JUST BEFORE MIDNIGHT AND SWEEP THROUGH
KANSAS CWA BEFORE DAWN.  WILL END TSTMS ABOUT AN HOUR AFTER FRONT.

SURFACE HIGH IN FRONT/S WAKE AND SMOOTH NW UPPER FLOW SHOULD KEEP
FAIR WEATHER SUNDAY THROUGH TUESDAY.  MOST EXTENDED MODELS DAMPEN
SW UPPER LOW AND SLIDE IT EAST INTO CENTRAL U.S. WED-THU.  THAT
FEATURE MAY PRODUCE THE NEXT ROUND OF CONVECTION.

.GID...NONE.

SCHURR

In the hours before

Special weather statement, May 22, 11:35 AM CDT, 5 hours 56 minutes before
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Special weather statement, May 22, 11:35 AM CDT, 5 hours 56 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.
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Local storm report, May 22, 2:51 PM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
251 PM CDT SAT MAY 22 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0237 PM    ELYRIA                    NE   0.75 INCH HAIL
05/22/99   VALLEY

MORITZ
Local storm report, May 22, 2:51 PM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  HASTINGS NE
251 PM CDT SAT MAY 22 1999

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0237 PM    ELYRIA                    NE   0.75 INCH HAIL
05/22/99   VALLEY

MORITZ

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 10:57 AM CDTSevere Thunderstorm WarningGIDHarlan, Phelps33 min
May 22, 11:16 AM CDTSevere Thunderstorm WarningGIDKearney44 min
May 22, 2:23 PM CDTSevere Thunderstorm WarningGIDValley52 min
May 22, 4:09 PM CDTSevere Thunderstorm WarningGIDValley51 min
May 22, 4:36 PM CDTSevere Thunderstorm WarningGIDSherman54 min
May 22, 5:00 PM CDTSevere Thunderstorm WarningGIDHoward60 min
May 22, 5:19 PM CDTSevere Thunderstorm WarningGIDBuffalo, Hall56 min
May 22, 5:19 PM CDTSevere Thunderstorm WarningGIDDawson56 min
May 22, 5:55 PM CDTSevere Thunderstorm WarningGIDHamilton, Polk, York65 min
May 22, 6:11 PM CDTSevere Thunderstorm WarningGIDDawson, Gosper, Phelps49 min
May 22, 6:31 PM CDTSevere Thunderstorm WarningGIDAdams, Buffalo, Hall59 min
May 22, 6:58 PM CDTSevere Thunderstorm WarningGIDHarlan, Phelps62 min
May 22, 8:42 AM CDTSevere Thunderstorm WarningGIDPhillips, Rooks33 min
May 22, 9:15 AM CDTSevere Thunderstorm WarningGIDRooks30 min
May 22, 9:42 AM CDTSevere Thunderstorm WarningGIDRooks33 min
May 22, 9:52 AM CDTSevere Thunderstorm WarningGIDPhillips38 min
May 22, 10:29 AM CDTSevere Thunderstorm WarningGIDPhillips31 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1999Every severe thunderstorm warning in 1999

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.