SUBVORTEX STATUS MESSAGE

DATE: 5/28/98
STATUS: GO (Travel day; 3:30 PM NSSL all-participants discussion/meeting; 
4 PM departure)

EQUIPMENT STATUS:

  Mobile Mesonets: All ready
  DOWS: Unknown
  UMASS Radar: down indefinitely
  Rockets: not operational
  Turtles:  operational
  RALPH and BOB:  operational
  NOAA P-3:   unknown

SYNOPSIS: 

Upper ridge over Plains will drift eastward as a new jet propagates into 
the central Plains toward this weekend.  A weak surface front will stall 
across N KS this evening.


DAY 1 FORECAST:

Slight chance of supercells in the High Plains of E WY, MT, and NE CO.  
Not targetable.


DAY 2 FORECAST:

Flow will increase rapidly toward the end of the day across a large part 
of the High Plains.  Shear in W NE is progged to be about 50 kt 0-6 km, 
with CAPE in excess of 3000 J/kg.  We expect supercells, possibly 
tornadic, in western NE.


DAY n FORECAST:

Strong jet moves into Plains on Saturday.  Tornadic supercells are 
possible near the left-front nose of this jet (E NE, IA region; perhaps 
into S Minnesota and/or W IL).  After Satuday, the evolution is uncertain 
but the long-range progs agree on a strong anticyclonically-curved jet 
across the central Plains for a period of at least four days. 


MISCELLANEOUS:

1.  Ravenna

2.  TODAY WE WILL TRAVEL TO SALINA KS.  THIS WILL GIVE US OPTIONS TO THE 
DRYLINE IN W KS TOMORROW IF THE FLOW COMES OUT SOONER THAN EXPECTED AND 
THE CAP IS WEAKER THAN FORECAST.  MORE LIKELY, WE WILL TRAVEL TO WESTERN 
NEBRASKA ON FRIDAY.  THIS IS LIKELY TO BE A MULTIPLE-OVERNIGHT TRIP.  

3.  Jerry needs your receipts from the last trip ASAP.  (Required on the 
envelope: name, SSN, address, and time/date of departure and return.)