Day

Data

Availability

General Characteristics

Suitable for What?

Whose Paper?

5/19

WYKA

(WCR,

1550-2008UTC)

DLR Falcon

(1604-1923UTC)

NRL P-3

(1541-2100UTC)

MIPS

-BLH

-Homestead Area

(Western Track)

-The surface over the panhandle region is very dry.

-A relatively deep and active ABL with rolls and gravity waves in a well capped ABL

- A very dry stable layer just above the ABL

BLH

Inter-comparison

5/20

WYKA

(1616-2025UTC)

DLR Falcon

(1653-2038UTC)

DOWs, MIPS

-BLH

-Homestead Area

(Western Track)

-Hot, sunny and bumpy weather condition

BLH

Inter-comparison

5/21

WYKA

(1832-2012UTC)

DLR Falcon

(1957-2318UTC)

NRL P-3

(1758-2314UTC)

-BLH

-Central Track

- A ridge over the central plains persisted

- Winds were from the south

- Fair weather cumulus over central and eastern Kansas

- A modest E-W gradient in dew point temperature

BLH

Inter-comparison

5/22

WYKA

(Stack pattern perpendicular to boundary, WCR

2058-0100UTC)

NRL P-3

(Box pattern,

18:56-01:20UTC)

DOWs, MIPS, DRI

-CI

-S-Pol Area

-Dryline between S-Pol and Homestead.

-No convective initiation, but data obtained along boundary.

Shallow Cu

5/23

NRL P-3

(1607-1914UTC)

DOWs, MIPS, DRI

-CI

-Fort Supply, OK

- Cold frontal boundary near the eastern extreme of the Oklahoma panhandle.

- Some loosely organized convection drifting out of Texas

-Middle level based convection

5/24

WYKA

(Cross dryline legs and cross cold front legs,

1801-2153UTC)

NRL P-3

(box pattern,

1649-2242UTC)

DLR Falcon

(EW legs through the dryline,

1827-2204UTC)

NASA DC-8

(1658-2258UTC)

DOWs,MIPS,DRI

-CI

-Shamrock, TX

-NS dryline and quasi-EW cold front

Richardson

5/27

WYKA

(WCR

1508-1923UTC)

NRL P-3

(mapping moisture in southern

KS,

16:01-21:54UTC

DOWs, MIPS, DRI

-BLH &CI

-East Track(BLH)

-Spearman, TX(CI)

- Occasional thin cirrostratus a few scattered altocumuli over southern

Kansas

-Later in the day, scattered cumulus at boundary layer top

-Small east-west gradient in BL depth with higher heights in the west

BLH

Inter-comparison

5/29

WYKA

(Stack mission,

N-S west track over Homestead,

WCR

15:36-20:29UTC,

21:46-23:01UTC)

DLR Falcon

(Longer N-S legs over King Air line

16:30-21:01UTC)

NRL P-3

(Moisture mapping mission primarily E-W legs,

1547-2228UTC)

DOWs

-BLH

-Homestead Area

- Previous day a large amount of rainfall around Homestead

-Clear skies in the western part of the

IHOP domain with leftover cirrus and debris clouds to the east

-Dry north and moist south

-The boundary layer

to the east of Homestead was moister (8-9 g/kg) and shallower (1.5 km) than

west of Homestead(3-4 g/kg,2-3km)

BLH

Inter-comparison

Day

Data

Availability

General Characteristics

Suitable for What?

Whose Paper?

6/2

WYKA

(WCR Provisional

1947-2349UTC)

NRL P-3

(HRDL Provisional

1810-2340UTC)

DOWs, DRI, MIPS

-CI

-SW Kansas

-A quasi east-west cold front was located in northern Kansas with a dryline extending to the south.

-The microburst activity

6/3

WYKA

(Crossed front several times and conducted normal stack,WCR

16:48-21:07UTC

22:24-00:43UTC),

DLR Falcon

(an E-W series of three 200km legs, HRDL PROVISIONAL, 18:30-22:26UTC)

NASA DC-8

(large scale moisture field mapping,

1654-2245UTC),

NRL P-3

(box patterns crossing cold front, fine line, and dry tongue

14:35-00:13)

DOWs, DRI, MIPS

-CI Mission

-North Central OK

- A cold/stationary

front was in the OK panhandle

- The dryline never did form in the panhandle and convection was not initiated along the boundaries.

- A deck of cirrostratus overhead, thickening towards the south.

-The cirrus shield hindered the daytime heating and convective temperature was not reached.

- A cap was maintained throughout the day with warm temperatures aloft

Inter-comparison

Markowski

6/4

DOWs, DRI, MIPS

-CI

- Wheeler, TX

-Severe storms in SW KS with a great deal of midlevel clouds

in the OK panhandle.

Inter-comparison

6/6

WYKA

(WCR

16:08-19:58UTC

21:08-23:35UTC),

DLR Falcon

(an E-W series,

16:48-19:00UTC

21:28-22:51UTC)

-BLH

- Central Track

- BL structure was heterogeneous, shallower on western end

- Skies were virtually clear, with a few small cumulus starting eastward

- There was some cirrus to the south

- There was significant haze near the top of the BL

BLH

6/7

WYKA

(WCR

16:03-20:10UTC

21:06-22:20UTC),

DLR Falcon

(Fluxes & moisture mapping, HRDL

16:10-20:25)

NRL P-3

(Moisture mapping,

18:00-21:55)

DOWs, MIPS, DRI

-BLH

-Homestead Area(Western Track)

-BL depth varied considerably

- Above 10 k ft, the mixing ratio was so low

- The thermals seemed to be weaker in the middle of the track, and seemed to grow with time.

-Winds were strong

-Good data for both flux heterogeneity and budgets

BLH

6/9

WYKA

(WCR

17:00-19:09UTC),

NASA DC-8

(Box over S-Pol from 98 to 104W,

1329-2115UTC),

NRL P-3

(A series of box patterns,

11:52-19:02UTC)

DOWs, MIPS, DRI

-CI

-Guymon, OK

-Well defined dryline west of domain in am

-No convection along dryline in OK panhandle

-An ill-defined line of very shallow Cu, with more shallow Cu to the SW.

Shallow Cu

Inter-comparison

6/10

WYKA

(a line-normal stack at various levels between 160-1500 m AGL,

18:56-22:20)

NRL P-3

(12:01-19:08UTC)

DOWs, MIPS, DRI

-CI

-Dodge City, KS

-Weak quasi-stationary cold frontal boundary sagging southward toward OK/KS border

-Entire boundary had growing CU and small CBs.

-Cells initiated along boundary

Inter-comparison

Richardson

6/11

NASA DC-8

(E-W transects,

1640-2157UTC)

NRL P-3

(Box-shaped surveillance transects of boundary,

11:18-19:15UTC) DOWs, MIPS, DRI

-CI

-S-Pol Area

-Boundary in Elmwood, OK area nearly stalled 15km SE of S-Pol.

-Clouds formed along the boundary but not deep convection.

Shallow Cu

6/12

WYKA

(a normal stack across the boundary, WCR,

1732-2208UTC, 2247-2350UTC)

NRL P-3

(east-west box along the outflow boundary,

1634-2304UTC)

DOWs, MIPS, DRI

-CI

-S-Pol Area

-North of the boundary, scattered thin stratocumulus; south of it, mostly clear; cloudiness decreasing towards the west

-Severe convection initiated at the triple point.

Inter-comparison

Markowski

6/14

WYKA

(3500 and 4000 ft AGL, WCR

1019-1427UTC,

1457-1836UTC)

DLR Falcon

(1101-1516UTC,

1603-1821UTC)

NRL P-3

(1043-1827UTC)

NASA DC-8

(Larger scale mapping,

1307-2126UTC)

DOWs, MIPS, DRI

-BLE

-Homestead Area

-Mid and low-level clouds, mostly stratocumulus, were present

- The soil was wet with plenty of standing water in the fields, except at the far eastern end of the tracks.

Shallow CU

Inter-comparison

6/15

WYKA

(E-W legs, WCR,16:48-23:33UTC)

DLR Falcon

(1729-2100UTC)

NRL P-3

(survey the region ,36N and 101.5W,

1648-2333UTC)

DOWs, MIPS, DRI

-CI

-Dumas, TX

-The boundary was oriented N-S and was characterized as a broad area of confluence in the wind field and some moisture variability

-The boundary increased intensity and focus as the time went on.

-Cells formed along the boundary in NW KS and propagated southward along it through the afternoon.

-There was also convection moving in from the west.

-The boundary did initiate convection at the intersection of it and the gust front form the large storm to the north. A few small cells did form directly on the boundary late in the day.

- Thunderstorms did break out some 80 km further north along the line, before 20:57

Inter-comparison

Markowski

Richardson

6/17

WYKA

(WCR

1548-2036UTC,

2110-2145UTC)

-BLH

-Eastern Track

BLH

6/18

WYKA

(ESE-WNW legs near 37:40N and 101:50W,WCR

1650-2213UTC,

2252-0118UTC)

NRL P-3

(1622-0036UTC)

DOWs, MIPS, DRI

-CI

-Sublette, KS

- A combination of minor cold front and dry line were believed to be present.

Inter-comparison

6/19

WYKA

(sampled boundary using its standard pattern,WCR

1730-2211UTC,

2303-0023UTC)

NRL P-3

(boxed the boundary and captured evolution of convective initiation

1742-2341UTC)

DOWs, MIPS, DRI

-CI

-NW Kansas

-Cold frontal boundary (evident on radar) oriented NNE-SSW near Goodland, KS moved toward Colby, KS.

-All instruments performed well.

Inter-comparison

Richardson

6/20

WYKA

(WCR,15:52-20:13UTC,

21:38-22:14UTC)

-BLH Mission

- Eastern Track

-Deep convection area in W. Kansas, S. Nebraska moving N-NE past the Eastern Track Area

- Scattered cumulus, scattered thin cirrus (thicker to NW in distance).

-Seemed like the trade winds!

-Cu slightly thicker, moist, slight static stability

BLH

Shallow Cu

6/21

WYKA

(Coordinating with the P-3, Repeating 13 times the AB-BA circuit, WCR

10:00-14:54,

15:30-19:42UTC),

NRL P-3

(a box pattern in a clockwise pattern,

10:27-19:30UTC)

DOWs, MIPS, DRI

-BLE Mission

- Homestead Site

- Some cirrus and mid-level clouds moving in from the SE

-Wind speeds 15 kt at surface 20-25 kt at 850mb

- High humidity(about 14g/kg) at all levels flown(3200-5400ft)

Shallow Cu

Inter-comparison

6/22

WYKA

(Eastern track, WCR

16:30-23:09),

NRL P-3

(E-W Lines,

16:30-20:33)

-BLH

-Eastern Track

-Clear conditions with some scattered Cu.

BLH

Shallow Cu

6/25

WYKA

(WCR

1049-1319UTC,

1551-2049UTC)

NRL P-3

(1620-2146UTC)

DOWs, MIPS, DRI

-BLE

-Perryton, TX

-Showers passing through early in the morning to the east of S-Pol and some cirrus clouds to the west

Inter-comparison