|
Mesoscale Discussion 2100 |
< Previous MD Next MD >
|
|
MESOSCALE DISCUSSION 2100
NWS STORM PREDICTION CENTER NORMAN OK
1253 PM CST SAT DEC 21 2013
AREAS AFFECTED...FAR NERN OK...ERN KS...WRN/CNTRL/NERN MO...W-CNTRL
IL
CONCERNING...FREEZING RAIN
VALID 211853Z - 212300Z
SUMMARY...FREEZING RAIN RATES LOCALLY IN EXCESS OF 0.10 IN/HR ARE
LIKELY THIS AFTERNOON INTO THE EVENING FROM FAR NERN OK/ERN KS NEWD
INTO NERN MO AND W-CNTRL IL.
DISCUSSION...SEVERAL UPPER VORT LOBES ARE BEGINNING TO CONSOLIDATE
OVER THE SRN HIGH PLAINS THIS AFTERNOON. AS THIS OCCURS...850 MB
CYCLONE WILL DEEPEN SLIGHTLY AS IT ENTERS ERN KS/WRN MO BY EVENING.
WAA/ISENTROPIC UPGLIDE WILL INTENSIFY AS A RESULT...AND SUSTAIN
MODERATE RAINFALL RATES FROM FAR NERN OK/ERN KS INTO CNTRL/NERN MO
AND W-CNTRL IL. SURFACE TEMPERATURES ARE EXPECTED TO GENERALLY HOLD
STEADY IN THE MID/UPPER 20S DUE TO WET-BULB COOLING EFFECTS...WHICH
WILL PROMOTE FREEZING RAIN GIVEN THE PRESENCE OF A 1-3 DEG C WARM
LAYER CENTERED NEAR 850 MB. FREEZING RAIN WILL EVENTUALLY TRANSITION
TO SNOW OVER ERN KS THIS EVENING...BUT WILL PERSIST OVER MO/IL AS
WARM NOSE PERSISTS AHEAD OF 850 MB LOW.
..GARNER.. 12/21/2013
ATTN...WFO...ILX...LSX...DVN...SGF...EAX...TSA...TOP...ICT...
LAT...LON 40769097 40468964 39718972 38949058 36579519 37049661
38059606 39349425 40769097
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|