ROTATE-98

Radar
Observations of
Tornadoes
And
Thunderstorms
Experiment 1999

ROTATE-99 Observations:

> 19 tornadoes intercepted
Map of 1999 Tornado Intercepts
03 May Oklahoma tornadoes: First preliminary plots.
03-05 June: 6 tornadoes intercepted in KS/NE

ROTATE-98 Observations

Spencer Tornado:Violent (F4) tornado intercepted near Spencer, SD Preliminary radar est 115 m/s (258 mph) ground relative winds. Genesis and mature stages sampled.Images etc. at Spencer page

Scottsbluff Tornado: 1st ever dual-DOW volumetric scan of tornado! Click for raw images: DOW2 DOW3

Cambridge Tornado: Extremely high resolution (beamwidth 3 m) of tornado passing within 170 m of DOW3. Radar Images

Status
(last update: 99 June 10 16:00 CDT)

ROTATE-99 is over.

Next project is MAP in Italy/Switzerland in August
Hurricane intercept standby starting ~08 September, DOW3 only
ROTATE-00 starts 15 April 2000
.

ROTATE Description DOW Home Page

1999 Data and Logs
Successful Tornado intercepts in red
Map of tornadoes DOWs have intercepted in 1999

990413 Mission to Silverton TX area ~620 miles. Strong convection. Test data sets only with staggered PRF, high PRF, etc. Map
990421 Mission to Enid, OK area ~330 miles. Two weak tornadoes (Hunter, Kremlin). Dual-DOW deployment ~1 hour of dd data of surface circulation and possible tornadoes. Route Map, Deployment Map
990422 Mission to Tulsa, OK area ~310 miles. Strong convection, no tornadoes. Data collected in several cells N, W, and S and E of Tulsa. Map
990427/8 Mission to Plainview, TX area. Strong convection, little organization, no tornadoes. Data collected in several uninteresting cells E of Plainview.
990501/2 Mission to Odessa, TX area. Collected data at ~1.4 km range in two (one?) tornado near Tarzan TX. Preliminary winds ~45 m/s. More later
990503/4 Oklahoma tornadoes. Link to preliminary images.
990509/10 Mission to Southern Kansas. No tornadoes
990514 Mission to Texas Panhandle. No tornadoes, not even much convection.
990515 Mission to Lawton area. No tornadoes, just dying convection.
990516 Mission to Guthrie, Texas area. Possible short lived weak tornado. Brief surface rotation near Guthrie was short lived and weak.
990520 Mission to Jericho, Texas area. Probable dual-Doppler in weak tornado near I-40.
990523 CMRP dual-Doppler mission over Lamont profiler. Dual-Doppler data collected during squall line passage.
990525 Intercepts of non-tornadic storms northwest of Abeline, TX.
990526 Short lived tornado observed near Peyote, TX.
990531 Some data in different tornadoes including Sitka, KS tornado. Not the best quality, though. dual-Doppler in a possible weak tornado after dark near Alva, OK.
990601-5 6 tornadoes and one gustnado intercepted in 3 days. dual-Doppler, genesis data, single-Doppler. Tornadoes in Almena, KS, Thedford, NE, and Ainsworth, NE.

DOW home Page

For more information, contact:

Joshua Wurman

Center for Severe Weather Research

1945 Vassar Circle

Boulder, CO 80305

720-304-9100 (voice), 720-304-0900 (fax)

admin@cswr.org

Center for Severe Weather Research
1945 Vassar Circle, Boulder, CO 80305
720-304-9100 (voice), 720-304-0900 (fax) | admin@cswr.org | CSWR